CN107381956A - A kind of small towns domestic sewage processing system and method - Google Patents
A kind of small towns domestic sewage processing system and method Download PDFInfo
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- CN107381956A CN107381956A CN201710720521.8A CN201710720521A CN107381956A CN 107381956 A CN107381956 A CN 107381956A CN 201710720521 A CN201710720521 A CN 201710720521A CN 107381956 A CN107381956 A CN 107381956A
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- 239000010865 sewage Substances 0.000 title claims abstract description 138
- 238000012545 processing Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000010802 sludge Substances 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000004062 sedimentation Methods 0.000 claims abstract description 28
- 238000003860 storage Methods 0.000 claims abstract description 28
- 239000002893 slag Substances 0.000 claims abstract description 25
- 239000000126 substance Substances 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims description 111
- 238000005192 partition Methods 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 18
- 238000005842 biochemical reaction Methods 0.000 claims description 15
- 230000008676 import Effects 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 239000002351 wastewater Substances 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 7
- 239000003153 chemical reaction reagent Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000005276 aerator Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000000746 purification Methods 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims 1
- 238000006297 dehydration reaction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 14
- 238000011282 treatment Methods 0.000 abstract description 10
- 239000007787 solid Substances 0.000 abstract description 8
- 238000004065 wastewater treatment Methods 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 238000003672 processing method Methods 0.000 abstract description 5
- 230000007062 hydrolysis Effects 0.000 abstract description 2
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 20
- 230000009286 beneficial effect Effects 0.000 description 14
- 241000894006 Bacteria Species 0.000 description 13
- 229910052698 phosphorus Inorganic materials 0.000 description 13
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 12
- 239000011574 phosphorus Substances 0.000 description 12
- 229910052757 nitrogen Inorganic materials 0.000 description 11
- 238000013461 design Methods 0.000 description 10
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 4
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 4
- 230000001651 autotrophic effect Effects 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 241000588724 Escherichia coli Species 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 3
- 229920000388 Polyphosphate Polymers 0.000 description 3
- 229920000037 Polyproline Polymers 0.000 description 3
- 238000009360 aquaculture Methods 0.000 description 3
- 244000144974 aquaculture Species 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 3
- 238000001727 in vivo Methods 0.000 description 3
- -1 meanwhile Substances 0.000 description 3
- 238000006396 nitration reaction Methods 0.000 description 3
- 239000001205 polyphosphate Substances 0.000 description 3
- 235000011176 polyphosphates Nutrition 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241000108664 Nitrobacteria Species 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- TVHALOSDPLTTSR-UHFFFAOYSA-H hexasodium;[oxido-[oxido(phosphonatooxy)phosphoryl]oxyphosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O TVHALOSDPLTTSR-UHFFFAOYSA-H 0.000 description 2
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000010841 municipal wastewater Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- LSHFIWNMHGCYRS-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[OH4+2] Chemical group [O-][N+]([O-])=O.[O-][N+]([O-])=O.[OH4+2] LSHFIWNMHGCYRS-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 230000004099 anaerobic respiration Effects 0.000 description 1
- 230000008485 antagonism Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000007102 metabolic function Effects 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 description 1
- YPJKMVATUPSWOH-UHFFFAOYSA-N nitrooxidanyl Chemical compound [O][N+]([O-])=O YPJKMVATUPSWOH-UHFFFAOYSA-N 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of small towns domestic sewage processing system and method, belong to technical field of sewage.The sewage disposal system includes removing slag bath, setting pot, lift pot, multistage moving bed biomembrane reactor, pipeline mixer, full-automatic chemicals feeder, sedimentation basin, filter, sterilizer, reuse water storage tank, two level setting pot, Pasteur's measuring tank, sludge storage tank, sludge dewatering equipment and blower fan.The invention also discloses a kind of small towns domestic sewage processing method.The small towns domestic sewage processing system of the present invention, adapts to various complicated small towns sewage disposals, anti impulsion load ability and solid SS hydrolysis abilities are strong, denitrogenation dephosphorizing efficiency high, operating cost is low, and treatment effect is stable, ensures that effluent quality reaches national GB18918 2002《Urban wastewater treatment firm pollutant emission standard》One-level A standards.
Description
Technical field
The present invention relates to a kind of small towns domestic sewage processing system and method, belong to technical field of sewage.
Background technology
The problem of existing small towns sanitary sewage disposal technology is present：(1) waste water collection rate is low；(2) rain dirt does not shunt；(3)
Sewage quantity changes greatly (sewage quantity of daily different periods discharge is different)；(4) variation water quality is larger (is such as mixed with small food
Processing, slaughterhouse, the high-concentration sewage of casual household's aquaculture)；(5) operation maintenance is difficult (being managed as lacked professional and technical personnel)；(6)
Existing many small towns sewage treatment plants are built up by municipal wastewater processing design concept, and up-front investment is excessive, and (day handles 500 tons
Sewage need to invest more than 10,000,000 yuan), its municipal wastewater treatment technology is difficult in adapt to the change of small towns sewage water and water quality ripple
Dynamic present situation, causes fluctuation of service and the factors such as operating cost is higher.
For small towns sewage disposal, the current existing biochemical processing process with denitrogenation dephosphorizing has：Contact oxidation method (A/
O+ fillers), IBR biological treatments, bio-disc system, MC-MBBR.
(1) contact oxidation method：It is a kind of anaerobic-aerobic disposal found out by US Experts the seventies.In anaerobism
Under the conditions of, it is electron donor that facultative heterotrophicy bacteria, which utilizes or partly utilizes the organic carbon source in sewage, and molecule is substituted with nitrate
Oxygen makees electron acceptor, carries out anaerobic respiration, decomposes organic matter, meanwhile, nitrogen in nitrate is reduced into gaseous nitrogen, so far completed anti-
Nitration reaction.Under aerobic condition, itrogenous organic substance is decomposed by bacteria to ammonia, then enters one by aerobic autotrophic type nitrite bacteria
Step is converted into nitrite, then is converted into nitrate through the effect of aerobic autotrophic type nitrobacteria, so far completes nitration reaction.This work
Skill Nitrogen removal effect is preferable, and biological phosphor-removing effect is poor.
(2) IBR biological treatments：It is a kind of collection anaerobism for being found out on the basis of contact oxidation method and oxygen, aerobic anti-
The cyclic activated sludge system of integral continuous flow and should be deposited in.It has the continuous stream spatially split concurrently and lived simultaneously
The advantages of property sludge and the intermitting actived sludge process temporally split, with the continuous stream activated sludge spatially split
Method is compared, and eliminates the link of sludge reflux, thus is saved operation energy consumption and reduced treatment facility and investment；With temporally splitting
Intermittent flow activated sludge process compare, possess the characteristics of continuous flow, thus reduce treatment facility volume and total civil engineering
Investment.The continuous water-in and water-out in single pond are realized using the three phase separator for being arranged at bottom of pond by the reaction tank of the technological design, interval exposes
Gas.The multistage A/A/O states stopped than building sewage in reaction tank are exposed by adjusting, make sewage in reaction tank in optimal
The Nitrogen/Phosphorus Removal of state.This technique biological carbon and phosphorous removal effect is preferable, at first for city political affairs sewage disposal plant, for township
Town sewage disposal, the automatic degree of equipment is too high, and technological operation is more complicated, and technology content is higher, and up-front investment is excessive；Other small towns
Engineers and technicians are lacked, because sewage quality and flowed fluctuation are larger, easily cause operational error, finally result in sewage disposal mistake
Lose.
(3) bio-disc system：It is by many plastic disc (disks arranged in parallel being immersed in a tank (oxidation trough)
Piece) formed, the nearly half of card of disc is immersed under the waste water water surface, and biomembrane is had on disc.Its operation principle
Essentially identical with biofilter, disc slowly rotates in the case where trunnion axis normal thereto drives, the part immersed in waste water
Biomembrane on disc just adsorbs the organic matter of waste water, and when producing the water surface, biomembrane makes again from the oxygen needed for Atmospheric Absorption
The organic matter being adsorbed on film is decomposed by microbiological oxidation.With the continuous rotation of disc, waste water in groove is finally set to be purified.
Rotating biological contactor is such as run proper with nitrification, denitrogenation and the function of dephosphorization in addition to effectively removal organic polluter is removed.This
Process operation expense is relatively low, and disc makes complexity, weather is larger to this technogenic influence, the effect of dephosphorization is poor.Because small towns is dirty
Water water quality and flowed fluctuation are larger, anti impulsion load ability, are easily caused sewage disposal failure.
(4) MC-MBBR methods：It is a kind of multistage composite moving-bed biofilm found out on oxidation ditch process Process ba- sis
Reactor (MC-MBBR), it is micro- to strengthen from optimization device structure, preferably floating type plant imitating biological filler, addition dominant bacteria
Biological metabolism function, raising activated sludge coagulative precipitation performance are started with, and have synchronous nitration and denitrification function, in organic dirt of degrading
Good Nitrogen/Phosphorus Removal is realized while contaminating thing, but from the point of view of nearly 2 years running examples, Nitrogen/Phosphorus Removal is general, it is main
Want reason be small towns sewage be mixed with small food processing, slaughterhouse, casual household's aquaculture high-concentration sewage when, anti impulsion load
Ability, SS, N, P clearance do not reach the one-level B standard of national regulation in sewage, but its design concept is very advanced, equipment
Small investment, take up an area less, operational management is simple, without professional and technical personnel, operating cost is low, the construction period is short.
The content of the invention
An object of the present invention, it is to provide a kind of small towns domestic sewage processing system.The small towns sanitary sewage of the present invention
Processing system, various complicated small towns sewage disposals are adapted to, anti impulsion load ability and solid SS hydrolysis abilities are strong, and denitrogenation removes
Phosphorus efficiency high, operating cost is low, and treatment effect is stable, ensures that effluent quality reaches national GB18918-2002《At town sewage
Manage factory's pollutant emission standard》One-level A standards.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of small towns domestic sewage processing system, including except
Slag bath, setting pot, lift pot, multistage moving bed biomembrane reactor, pipeline mixer, full-automatic chemicals feeder, sedimentation basin, mistake
Filter, sterilizer, reuse water storage tank, two level setting pot, Pasteur's measuring tank, sludge storage tank, sludge dewatering equipment and blower fan；
The multistage moving bed biomembrane reactor includes 4 tank bodies being sequentially connected in series, respectively anaerobic jar, anoxic tank,
The aerobic tank of one-level, the aerobic tank of two level, each tank body are cuboid of the section for square；The inside of each tank body
Lateral partitions and longitudinal baffle are equipped with, and lateral partitions intersect in tank interior with longitudinal baffle and tank body put down in crosswise
It is divided into 4 series connection and separate reative cell, respectively first order reaction room, second order reaction room, third-order reaction room and four
Order reaction room；Lateral partitions, the left and right ends of longitudinal baffle are connected with tank body left and right sidewall, front-rear side walls respectively, lateral partitions,
The upper sealing plate with tank body, lower shoe are connected the upper and lower ends of longitudinal baffle respectively；The first order reaction room and second order reaction room it
Between the bottoms of lateral partitions, lateral partitions between the third-order reaction room and fourth-order reaction room bottom on be equipped with least
1 is crossed water through hole；Pipe distributor is equipped with the top of each reative cell；
Mud return line, the first order reaction of the anaerobic jar are provided between the first order reaction room of the anaerobic jar and filter
The top of room is provided with sludge import；Nitrification liquid return duct is provided between the first order reaction room of the anoxic tank and sedimentation basin, it is described
The top of the first order reaction room of anoxic tank is provided with carbon source import and nitrification liquid import；The aerobic tank of the one-level and the aerobic tank of two level
Bottom is equipped with the micro- aerator of tubular type, and top is equipped with least one air intlet；Pacify inside 4 reative cells of each tank body
Equipped with moving-bed biofilm.
Multistage moving bed biomembrane reactor (the Multi-lever Anaerobic Aerobic Moving of the present invention
Bed Biofi lm Reactor, are abbreviated as MAA-MBBR) be this sewage disposal system key equipment.It includes 4 tank bodies,
Each tank body is in the same size, and internal all separations have 4 independent reative cells, and each reative cell is designed with moving-bed biofilm, leads to
Cross reative cell top pipe distributor and bottom cross water through hole, thus it is possible to vary sewage hydraulic flow state in equipment, sewage with
For the number of moving-bed biofilm contact by once bringing up to four times, i.e., whole biochemical efficiency is contact oxidation method and MC-MBBR methods
3-4 times.The liquid level height of multistage moving bed biomembrane reactor is designed as 3.5m, and sewage is in multistage moving bed biomembrane reactor
Interior total residence time is designed as 10.8 hours, and the wherein anaerobic biological time is 2.7 hours, and the anoxic biochemistry time is 2.7 hours, good
The oxygen biochemistry time is 5.4 hours.The multistage moving bed biomembrane reactor of the present invention has small investment, compact-sized, processing letter
It is single, easy for installation, denitrification phosphorous removal biochemical efficiency high, operation easily, operating cost it is relatively low, can modularized design the features such as.
The operation logic of the small towns domestic sewage processing system of the present invention：Sewage is introduced into except slag bath, setting pot, by carrying
The lifting of tank is risen, into the pipe distributor in anaerobic jar first order reaction ceiling portion, sewage flows from top to bottom, with first order reaction room
In moving-bed biofilm carry out first time biochemical reaction；The sewage of first order reaction room passes through first order reaction room and second order reaction room
Between lateral partitions on cross water through hole enter second order reaction room, sewage flows from bottom to top, with the shifting in second order reaction room
Dynamic bed biomembrane carries out second of biochemical reaction；The sewage of second order reaction room passes through second order reaction room and third-order reaction ceiling portion
Pipe distributor, into third-order reaction room, sewage is flowed from top to bottom, and the is carried out with the moving-bed biofilm in third-order reaction room
Biochemical reaction three times；The sewage of third-order reaction room in the lateral partitions between third-order reaction room and fourth-order reaction room by crossing water
Through hole enters fourth-order reaction room, and sewage flows from bottom to top, and it is secondary to carry out the 4th with the moving-bed biofilm in fourth-order reaction room
Change reaction；Then, sequentially enter to anoxic tank, the aerobic tank of one-level, the aerobic tank of two level, ran again from the sewage of anaerobic jar outflow
Journey is similar with anaerobic jar.Last sewage is voluntarily flowed into pipeline mixer through the aerobic tank of two level, defeated with full-automatic chemicals feeder
After the dephosphorization chemical reagent entered is sufficiently mixed, except remaining a small amount of phosphorus in decontaminated water, then voluntarily it is flowed into sedimentation basin, carries out dirty
The separation of solid and liquid of water and sludge.Sewage in sedimentation basin through separation of solid and liquid, is partly into anoxic tank, is provided for anoxic tank
Nitrification liquid, carry out denitrogenation processing, another part is voluntarily flowed into filter and filters, then the sterilization of sterilized device, it is up to standard after through bar
Family name's measuring tank is discharged.Sludge in sedimentation basin through separation of solid and liquid, is partly into anaerobic jar, and polyP bacteria is provided for anaerobic jar
Kind, another part enters in sludge basin, carries out sludge dewatering treatment.
The main function of the anaerobic jar of the present invention：First, exclusive aerobic-anaerobic microbe flora utilizes the carbon of sewage small molecular
Source, nitrogen source and phosphorus source are bred, and produce substantial amounts of ectoenzyme, and these ectoenzymes will be contaminated with pot foods processing, slaughterhouse,
Larger molecular organicses (cellulose, starch and protein) are hydrolyzed into small organic molecule in the high-concentration sewage of casual household's aquaculture
(glucose, amino acid, acetic acid, hydrogen, carbon dioxide, volatile fatty acid (VFA) etc.).Second, set between anaerobic jar and filter
There is mud return line, activity sludge reflux provides polyP bacteria kind for this tank, and polyP bacteria is electronics using small molecule organic material
Donor, produce the nutriments such as PHB or PHV and store in vivo, while the Quadrafos stored in vivo is decomposed, with P04 3-
Form be discharged into environment, provide nutrition for other facultative bacterias.
The main function of anoxic tank：First, exclusive aerobic-anaerobic microbe flora continues with the carbon source of sewage small molecular, nitrogen
Source and phosphorus source are bred, and produce substantial amounts of ectoenzyme, and it is organic that larger molecular organicses in high-concentration sewage are hydrolyzed into small molecule
Thing.Second, being provided with nitrification liquid return duct between anoxic tank and sedimentation basin, nitrification liquid backflow provides nitrate anion for this tank, and denitrification is thin
Bacterium is using nitrate anion as electron acceptor, oxidation of organic compounds, and by reducing nitrate radical into nitrite anions, nitrite anions is extremely unstable, easily
Nitrogen is resolved into, finally discharges processing system, reaches the effect of denitrogenation.Carbon source import is additionally provided with the top of anoxic tank, be in order to
When anoxic tank carbohydrate can not support biochemical reaction, carbon source need to be added from outside.
Aerobic tank main function：First, itrogenous organic substance is decomposed into ammonia by exclusive aerobic bacteria, then by aerobic autotrophic type
Nitrite bacteria is further converted to nitrite, then is converted into nitrate through the effect of aerobic autotrophic type nitrobacteria, completes nitre
Change reaction.Second, facultative poly- phosphobacteria is electron donor using nutriments such as the PHB or PHV stored in vivo, it is a large amount of to absorb
P0 in sewage4 3-, and stored in the form of Quadrafos in bacterial body, last sludge form discharge system, completion removes phosphorus reaction.Three
It is that aerobic flora utilizes remaining nitrogen source, carbon source and phosphorus source, synthesizes neoblast, while organic matter is resolved into CO2And H2O。
In view of the aerobic residence time of the present invention is longer, therefore it is designed to two tank series connection, its advantage：First, all tank body chis
It is very little consistent, it can be made with modularization, standardization, second, equipment installation is simple, easy to make.Such as it is designed to a tank, aerobic tank
Volume is excessive, and equipment making, installation and transport are more difficult, cost increase.The micro- aerator of tubular type is provided with aerobic tank, its effect is
There is provided oxygen for aerobic tank, have it is simple in construction, coefficient of oxygen utilization is high, dependable performance, stomata are not easily blocked, sewage does not pour in down a chimney, ring
To uniform force, long lifespan, convenient to install and maintain, lower-price characteristic.
Lift pot in said apparatus, multistage moving bed biomembrane reactor, pipeline mixer, sedimentation basin, filter, disappear
Malicious device is to be designed to a processing unit by sanitary sewage disposal amount in small towns is 500t/d.If small towns sanitary sewage disposal
Measure as 1000t/d, then correspondingly increase a processing unit, be installed in parallel, the like.According to the water of different sewage, place
Reason scale can be from 500t/d to 5000t/d, and processing unit is correspondingly increased to 10 by 1.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, it is described except slag bath is provided with wastewater inlet, the setting pot with described except slag bath connects, the lift pot with
The setting pot connection, the anaerobic jar of the multistage moving bed biomembrane reactor connect with the lift pot, the duct type
Blender connects with the aerobic tank of the two level of the multistage moving bed biomembrane reactor, and the sedimentation basin mixes with the duct type
Device connects, and the filter connects with the sedimentation basin, and the sterilizer connects with the filter, the reuse water storage tank and
The sterilizer connection, the two level setting pot connect with the reuse water storage tank, and Pasteur's measuring tank sinks with the two level
Sand pond connects, and Pasteur's measuring tank is provided with pure water inlet, and the full-automatic chemicals feeder connects with the pipeline mixer, institute
Sludge storage tank is stated to connect with the sedimentation basin, the sludge dewatering equipment connects with the sludge storage tank, the blower fan respectively with sky
Gas import connects with lift pot.
Further, it is described that revolution slag remover is provided with except slag bath is interior.
It is using above-mentioned further beneficial effect：Sewage is in except slag bath, by turning round slag remover by big of >=5mm
Grain material removes, and prevents suspension from blocking follow-up facility.Revolution slag remover has continuous slagging-off action, separative efficiency height, tool
Have very strong self-purification capacity, will not blockage phenomenon, device structure is simple, easy to maintenance, energy consumption is low, it is noiseless, operation into
The characteristics of this is low, automaticity high (PLC controls).
Further, the integrated regulation lift pot of the lift pot, specification：Long 5000mm × wide 4000mm × height
5000mm, volume：100m3。
It is using above-mentioned further beneficial effect：Integration regulation lift pot is that one kind is collected, mixed, being lifted in one
Equipment, this equipment is excessive too small all to be had an impact to wastewater treatment efficiency.If excessive, increase up-front investment, while in sewage
Miscellaneous bacteria stops long, amount reproduction in tank, root Ju microorganism " antagonism " principle, will influence later stage beneficial bacterium normal growth, leads
Cause Biochemical Treatment poor.If too small, sewage collecting combined amount is less, causes variation water quality larger, will also influence the later stage
Beneficial bacterium normal growth.Immersible pump, liquid-level controller, air agitator, sewage backflow pipe are provided with lift pot, tank is externally provided with dirt
Water ga(u)ge, pipeline distributor, solenoid electric valve.The 1 integration regulation of each 500t/d Processing System Designs of application claims
Lift pot, it is possible to reduce equipment investment early stage and operation power charge.
Further, the nominal diameter of the pipeline mixer is 200mm, length 1100mm, the nominal of its mouth of offeing medicine
A diameter of 25mm, flow 108m3/hr。
It is using above-mentioned further beneficial effect：Sewage after Multilevel biochemistry treatment, country-level A can't be reached
Phosphorus emission request as defined in mark, so 1 pipeline mixer of increase, it is therefore an objective to promote dephosphorization chemical reagent and remainder in sewage
A small amount of phosphorus, be sufficiently mixed, generate little particle solid fraction material and be filtered to remove.Pipeline mixer, which has, designs simple, installation
It is convenient, take up an area and do not influenceed by extraneous factor less, be not required to that exterior power, mixability are high, operating cost is low, PLC automatically control plus
The characteristics of dose.
Further, it is provided with vertical-flow settling tank in the sedimentation basin.
It is using above-mentioned further beneficial effect：Sewage with sludge is by vertical-flow settling tank, through sludge itself
Action of Gravity Field and residence time, sewage voluntarily separate with sludge.Vertical-flow settling tank, which has, designs simple, easy for installation, occupation of land
Less, it is not required to the characteristics of exterior power, separation of solid and liquid degree are high, operating cost is low.
Further, the filter is fiber rotary disc filter.
It is using above-mentioned further beneficial effect：Fiber rotary disc filter with fine-grained activated sludge and will can hang
Floating tiny solid fiber (SS) is removed, and finally reaches discharging standards.Fiber rotary disc filter have stable effluent quality,
Design is simple, anti impulsion load, general assembly power are low, continuous operation, automaticity high (PLC controls), easy to maintenance, occupation of land
Less, the characteristics of capital expenditure is few, short construction period.
Further, the sterilizer is tubular type ultraviolet ray disinfector.
It is using above-mentioned further beneficial effect：Sterilizer can carry out disinfection to pathogen and harmful microorganism, reach
To the discharge standard of national regulation.Tubular type ultraviolet ray disinfector have take up an area less, small investment, it is easy to operate, need not addition
The composition and structure, disinfecting time that learn reagent, do not change water are short, the characteristics of bactericidal range is wide, effect is good, non-secondary pollution.Often
Individual 1 tubular type ultraviolet ray disinfector of 500t/d Processing System Designs, it is possible to reduce equipment investment early stage and operation power charge.
Further, the sludge dewatering equipment is folded spiral shell formula dewaterer.
It is using above-mentioned further beneficial effect：Sludge dewatering function in time removes the moisture of sludge, improves dephosphorization
Effect, otherwise the sludge resting period is long, can discharge phosphorus again, causes biochemical dephosphorization to fail.Folded spiral shell formula dewaterer, which has, to be set
Count that compact, easy to operate, space is small, maintenance is simple, has self cleaning function, is good at the de- of oily sludge
Water, the characteristics of power consumption is low, failure is few, noise vibration is small, automaticity high (PLC controls).
Further, the water through hole of crossing is rectangle orifice plate, is provided with 250-300 aperture, the diameter of each aperture thereon
For 15mm.
It is using above-mentioned further beneficial effect：The mobile biomembrane in each reative cell can be limited respective anti-
Should be indoor, it will not arbitrarily flow to other reative cell.
Further, the nominal diameter of the pipe distributor is 200mm, length 1200mm, material PVC, is opened thereon
There are 180-200 aperture, a diameter of 15mm of each aperture.
It is using above-mentioned further beneficial effect：First, promote sewage is even to be distributed on liquid level, with mobile biomembrane
Fully reaction, improve biochemical efficiency；Second, mobile biomembrane in each reative cell can be limited in respective reative cell, no
Other reative cell can arbitrarily be flow to.
Further, a diameter of 25mm of the moving-bed biofilm, length 5mm, specific surface area >=900m2/m3, proportion
0.96g/cm3。
It is using above-mentioned further beneficial effect：Specific surface area is big, and biofilm is rapid, and strain is easily bred, anti-load-bearing capacity
By force, good denitrogenation and dephosphorization effect, operating cost is low, safeguards simple, service life length.
Further, the blower fan is Clothoid type blower fan.
It is using above-mentioned further beneficial effect：Oxygen is provided for aerobic Biochemical pot, and feature is that equipment volume is small, air quantity
Greatly, energy consumption is low, operating cost is low, easy for installation, anti-load variations are strong, air quantity is stable, supply is steady.
The second object of the present invention, it is to provide a kind of small towns domestic sewage processing method.The small towns sanitary sewage of the present invention
Processing method, operational control is simple, and the personnel of required configuration are few, and labor intensity is low, and labour cost is few.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of small towns domestic sewage processing method, including such as
Lower step：
Step 1：Sanitary sewage is collected by pipe network, and imported except slag bath removes suspension；
Step 2：Sewage after step 1 processing, which voluntarily flows into, removes sandstone in setting pot；
Step 3：Sewage after step 2 processing is voluntarily flowed into lift pot；
Step 4：The tubular type that sewage lifting after step 3 is handled is entered to the first order reaction ceiling portion of anaerobic jar is distributed
Device, sewage are flowed from top to bottom, and first time biochemical reaction is carried out with the moving-bed biofilm in first order reaction room；First order reaction room
Sewage by the lateral partitions between first order reaction room and second order reaction room cross water through hole enter second order reaction room, sewage
Flow from bottom to top, second of biochemical reaction is carried out with the moving-bed biofilm in second order reaction room；The sewage of second order reaction room
By the pipe distributor of second order reaction room and third-order reaction ceiling portion, into third-order reaction room, sewage flows from top to bottom, with
Moving-bed biofilm in third-order reaction room carries out third time biochemical reaction；The sewage of third-order reaction room by third-order reaction room and
Water through hole of crossing in lateral partitions between fourth-order reaction room enters fourth-order reaction room, and sewage flows from bottom to top, anti-with level Four
The moving-bed biofilm in room is answered to carry out the 4th biochemical reaction；Then, sequentially entered again to scarce from the sewage of anaerobic jar outflow
The aerobic tank of oxygen tank, one-level, the aerobic tank of two level, running are similar with anaerobic jar；
Step 5：Sewage after step 4 processing is entered in pipeline mixer through the aerobic tank of two level, and full-automatic
After the dephosphorization chemical reagent of chemicals feeder input is sufficiently mixed, voluntarily flow into sedimentation basin；
Step 6：Sewage after step 5 processing sequentially enters filter, sterilizer, reuse water storage tank, two level sand setting
Pond, Pasteur's measuring tank, discharge water purification；
Step 7：Sludge after step 5 processing sequentially enters sludge storage tank, sludge dewatering equipment, discharges sludge cake.
The beneficial effects of the invention are as follows：
1st, small towns domestic sewage processing system of the invention, adapts to various complicated small towns sewage disposals, effluent quality
Reach national GB18918-2002《Urban wastewater treatment firm pollutant emission standard》One-level A standards.
2nd, small towns domestic sewage processing system of the invention, operational management is convenient, goes slick, and can be according to influent quality
The change adjustment method of operation and technological parameter, one or more 500t/d sewage disposal list is started according to the change of amount of inlet water
Member, processing unit and the disposal ability of structures are played to greatest extent.
3rd, small towns domestic sewage processing system of the invention, equipment investment is few, and floor space is small, and the construction period is short, is easy to
Maintenance, maintenance, and foul smell is few, noise is low, environmental harmony, and cleaning is clean.
4th, multistage moving bed biomembrane reactor of the invention uses modularized design, factorial praluction, and modularization is installed,
Civil engineering is simple, and the engineering construction cycle is short.
5th, small towns domestic sewage processing method of the invention, operational control is simple, and the personnel of required configuration are few, labor intensity
Low, labour cost is few.
Brief description of the drawings
Fig. 1 is the structural representation of the small towns domestic sewage processing system of the present invention.
Fig. 2 is Fig. 1 top view.
Fig. 3 is the top view of multistage moving bed biomembrane reactor in Fig. 1.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, except slag bath, 2, setting pot, 3, lift pot, 4, multistage moving bed biomembrane reactor, 5, pipeline mixer, 6,
Full-automatic chemicals feeder, 7, sedimentation basin, 8, filter, 9, sterilizer, 10, reuse water storage tank, 11, two level setting pot, 12, Ba Shiji
Measuring tank, 13, sludge storage tank, 14, sludge dewatering equipment, 15, blower fan, 16, anaerobic jar, 17, anoxic tank, 18, the aerobic tank of one-level, 19,
The aerobic tank of two level, 20, lateral partitions, 21, longitudinal baffle, 22, first order reaction room, 23, second order reaction room, 24, third-order reaction room,
25th, fourth-order reaction room, 26, cross water through hole, 27, pipe distributor, 28, mud return line, 29, sludge import, 30, nitrification liquid returns
Flow tube, 31, carbon source import, 32, nitrification liquid import, 33, the micro- aerator of tubular type, 34, air intlet, 35, moving-bed biofilm,
36th, slag remover is turned round.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
As Figure 1-3, a kind of small towns domestic sewage processing system, including except slag bath 1, setting pot 2, lift pot 3, multistage
MBBR 4, pipeline mixer 5, full-automatic chemicals feeder 6, sedimentation basin 7, filter 8, sterilizer 9, reuse
Water storage tank 10, two level setting pot 11, Pasteur's measuring tank 12, sludge storage tank 13, sludge dewatering equipment 14 and blower fan 15；
The multistage moving bed biomembrane reactor 4 includes 4 tank bodies being sequentially connected in series, respectively anaerobic jar 16, anoxic
The aerobic tank 18 of tank 17, one-level, the aerobic tank 19 of two level, each tank body are cuboid of the section for square；It is each described
The inside of tank body is equipped with lateral partitions 20 and longitudinal baffle 21, and lateral partitions 20 are mutually handed over longitudinal baffle 21 in tank interior
Fork is 4 series connection by tank body equipartition in crosswise and separate reative cell, respectively first order reaction room 22, two level are anti-
Answer room 23, third-order reaction room 24 and fourth-order reaction room 25；Lateral partitions 20, the left and right ends of longitudinal baffle 21 are left with tank body respectively
Right side wall, front-rear side walls connection, lateral partitions 20, the upper and lower ends of longitudinal baffle 21 upper sealing plate with tank body, lower shoe respectively
Connection；The bottom of lateral partitions 20 between the first order reaction room 22 and second order reaction room 23, the and of third-order reaction room 24
At least one, which is equipped with, on the bottom of lateral partitions 20 between fourth-order reaction room 25 crosses water through hole 26；The top of each reative cell
It is equipped with pipe distributor 27；
Mud return line 28, the anaerobic jar 16 are provided between the first order reaction room 22 of the anaerobic jar 16 and filter 8
The top of first order reaction room 22 be provided with sludge import 29；Set between the first order reaction room 22 of the anoxic tank 17 and sedimentation basin 7
There is nitrification liquid return duct 30, the top of the first order reaction room 22 of the anoxic tank 17 is provided with carbon source import 31 and nitrification liquid import
32；The bottom of the aerobic tank 18 of the one-level and the aerobic tank 19 of two level is equipped with the micro- aerator 33 of tubular type, and top is equipped with least one
Air intlet 34；Moving-bed biofilm 35 is mounted on inside 4 reative cells of each tank body.
It is described except slag bath 1 is provided with wastewater inlet, the setting pot 2 with described except slag bath 1 connects, the lift pot 3 and institute
State setting pot 2 to connect, the anaerobic jar 16 of the multistage moving bed biomembrane reactor 4 connects with the lift pot 3, the pipeline
Formula blender 5 connects with the aerobic tank 19 of the two level of the multistage moving bed biomembrane reactor 4, the sedimentation basin 7 and the pipe
Road formula blender 5 connects, and the filter 8 connects with the sedimentation basin 7, and the sterilizer 9 connects with the filter 8, institute
State reuse water storage tank 10 to connect with the sterilizer 9, the two level setting pot 11 connects with the reuse water storage tank 10, described bar
Family name's measuring tank 12 connects with the two level setting pot 11, and Pasteur's measuring tank 12 is provided with pure water inlet, the full-automatic dosing
Machine 6 connects with the pipeline mixer 5, and the sludge storage tank 13 connects with the sedimentation basin 7, the sludge dewatering equipment 14 with
The sludge storage tank 13 connects, and the blower fan 15 connects with air intlet 34 and lift pot 3 respectively.
It is described that revolution slag remover 36 is provided with except slag bath 1 is interior.
The integrated regulation lift pot of lift pot 3, specification：Long 5000mm × wide 4000mm × high 5000mm, volume：
100m3。
The nominal diameter of the pipeline mixer 5 is 200mm, length 1100mm, and its nominal diameter for offeing medicine mouth is
25mm, flow 108m3/hr。
Vertical-flow settling tank is provided with the sedimentation basin 7.
The filter 8 is fiber rotary disc filter.
The sterilizer 9 is tubular type ultraviolet ray disinfector.
The sludge dewatering equipment 14 is folded spiral shell formula dewaterer.
The water through hole 26 of crossing is rectangle orifice plate, is provided with 250-300 aperture thereon, each aperture it is a diameter of
15mm。
The nominal diameter of the pipe distributor 27 is 200mm, length 1200mm, material PVC, is provided with 180- thereon
200 apertures, a diameter of 15mm of each aperture.
A diameter of 25mm of the moving-bed biofilm 35, length 5mm, specific surface area >=900m2/m3, proportion 0.96g/
cm3。
The blower fan 15 is Clothoid type blower fan.
A kind of method that sewage disposal is carried out using above-mentioned small towns domestic sewage processing system, is comprised the following steps：
Step 1：Sanitary sewage is collected by pipe network, and imported except slag bath 1 removes oil removal；
Step 2：Sewage after step 1 processing, which is voluntarily flowed into setting pot 2, removes sandstone；
Step 3：Sewage after step 2 processing is voluntarily flowed into lift pot 3；
Step 4：Sewage lifting after step 3 is handled is entered to the tubular type at the top of first order reaction room 22 of anaerobic jar 16
Distributor 27, sewage is flowed from top to bottom, and first time biochemical reaction is carried out with the moving-bed biofilm 35 in first order reaction room 22；
The sewage of first order reaction room 22 in the lateral partitions 20 between first order reaction room 22 and second order reaction room 23 by crossing water through hole
26 enter second order reaction room 23, and sewage flows from bottom to top, and second is carried out with the moving-bed biofilm 35 in second order reaction room 23
Secondary biochemical reaction；The pipe distributor that the sewage of second order reaction room 23 passes through second order reaction room 23 and the top of third-order reaction room 24
27, into third-order reaction room 24, sewage is flowed from top to bottom, and the 3rd is carried out with the moving-bed biofilm 35 in third-order reaction room 24
Secondary biochemical reaction；The sewage of third-order reaction room 24 passes through in the lateral partitions 20 between third-order reaction room 24 and fourth-order reaction room 25
Water through hole 26 of crossing enter fourth-order reaction room 25, sewage flows from bottom to top, with the moving-bed biofilm in fourth-order reaction room 25
26 carry out the 4th biochemical reaction；Then, the sewage flowed out from anaerobic jar 16 sequentially enters to anoxic tank 17, the aerobic tank of one-level again
18th, the aerobic tank 19 of two level, running are similar with anaerobic jar 16；
Step 5：Sewage after step 4 processing is entered in pipeline mixer 5 through the aerobic tank 19 of two level, with it is complete from
After the dephosphorization chemical reagent that dynamic chemicals feeder 6 inputs is sufficiently mixed, voluntarily flow into sedimentation basin 7；
Step 6：Sewage after step 5 processing sequentially enters filter 8, sterilizer 9, reuse water storage tank 10, two level
Setting pot 11, Pasteur's measuring tank 12, discharge water purification；
Step 7：Sludge after step 5 processing sequentially enters sludge storage tank 13, sludge dewatering equipment 14, discharges sludge
Cake.
Using the small towns domestic sewage processing system processing small towns sewage of the present invention.Influent quality：BOD5：130-210mg/
L, CODcr：260-420mg/L, SS：180-250mg/L, TN：40-55mg/L, NH3-N：25-35mg/L, TP：3-6mg/L,
PH：7.0-8.0, Escherichia coli：10000-50000/L.Outlet of sewer water quality after processing：BOD5：8.5-9.6mg/L
CODcr：45.2-47.8mg/L SS：7.9-9.4mg/L, TN：11.5-13.8mg/L NH3-N：5.6-7.5mg/L, TP：
0.39-0.46mg/L, PH：6.8-7.5, Escherichia coli：100-500/L.
National GB18918-2002《Urban wastewater treatment firm pollutant emission standard》One-level A standards：BOD5：10mg/L,
CODcr：50mg/L, SS：10mg/L, TN：15mg/L, NH3-N：8mg/L, TP：0.5mg/L, PH：6-9, Escherichia coli：103Individual/
L。
As can be seen here, small towns domestic sewage processing system of the invention, various complicated small towns sewage disposals is adapted to, are gone out
Water water quality reaches national GB18918-2002《Urban wastewater treatment firm pollutant emission standard》One-level A standards.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
- A kind of 1. small towns domestic sewage processing system, it is characterised in that including except slag bath (1), setting pot (2), lift pot (3), Multistage moving bed biomembrane reactor (4), pipeline mixer (5), full-automatic chemicals feeder (6), sedimentation basin (7), filter (8), sterilizer (9), reuse water storage tank (10), two level setting pot (11), Pasteur's measuring tank (12), sludge storage tank (13), sludge Dewaterer (14) and blower fan (15)；The multistage moving bed biomembrane reactor (4) includes 4 tank bodies being sequentially connected in series, respectively anaerobic jar (16), anoxic Tank (17), the aerobic tank of one-level (18), the aerobic tank of two level (19), each tank body are cuboid of the section for square；Often The inside of the individual tank body is equipped with lateral partitions (20) and longitudinal baffle (21), and lateral partitions (20) exist with longitudinal baffle (21) Tank interior intersect in crosswise by tank body equipartition be 4 series connection and separate reative cell, respectively one-level Reative cell (22), second order reaction room (23), third-order reaction room (24) and fourth-order reaction room (25)；Lateral partitions (20), longitudinal direction every The left and right ends of plate (21) are connected with tank body left and right sidewall, front-rear side walls respectively, lateral partitions (20), longitudinal baffle (21) it is upper The upper sealing plate with tank body, lower shoe are connected respectively at lower both ends；Between the first order reaction room (22) and second order reaction room (23) The bottom of lateral partitions (20) between the bottom of lateral partitions (20), the third-order reaction room (24) and fourth-order reaction room (25) On be equipped with least one and cross water through hole (26)；Pipe distributor (27) is equipped with the top of each reative cell；Mud return line (28), the anaerobism are provided between the first order reaction room (22) of the anaerobic jar (16) and filter (8) The top of the first order reaction room (22) of tank (16) is provided with sludge import (29)；The first order reaction room (22) of the anoxic tank (17) and Nitrification liquid return duct (30) is provided between sedimentation basin (7), the top of the first order reaction room (22) of the anoxic tank (17) is provided with carbon Source import (31) and nitrification liquid import (32)；The bottom of the aerobic tank of one-level (18) and the aerobic tank of two level (19) is equipped with tubular type Micro- aerator (33), top are equipped with least one air intlet (34)；It is mounted on moving inside 4 reative cells of each tank body Dynamic bed biomembrane (35).
- 2. a kind of small towns domestic sewage processing system according to claim 1, it is characterised in that described except slag bath (1) is set Have a wastewater inlet, the setting pot (2) with it is described except slag bath (1) connects, the lift pot (3) connects with the setting pot (2), The anaerobic jar (16) of the multistage moving bed biomembrane reactor (4) connects with the lift pot (3), the pipeline mixer (5) connected with the aerobic tank of two level (19) of the multistage moving bed biomembrane reactor (4), the sedimentation basin (7) and the pipe Road formula blender (5) connects, and the filter (8) connects with the sedimentation basin (7), the sterilizer (9) and the filter (8) connect, the reuse water storage tank (10) connects with the sterilizer (9), the two level setting pot (11) and the recycle-water Storage tank (10) connects, and Pasteur's measuring tank (12) connects with the two level setting pot (11), and Pasteur's measuring tank (12) sets There is pure water inlet, the full-automatic chemicals feeder (6) connects with the pipeline mixer (5), the sludge storage tank (13) and institute State sedimentation basin (7) connection, the sludge dewatering equipment (14) connects with the sludge storage tank (13), the blower fan (15) respectively with sky Gas import (34) connects with lift pot (3).
- 3. a kind of small towns domestic sewage processing system according to claim 1, it is characterised in that described except in slag bath (1) Provided with revolution slag remover (36)；The integrated regulation lift pot of lift pot (3), specification：Long 5000mm × wide 4000mm × High 5000mm, volume：100m3。
- A kind of 4. small towns domestic sewage processing system according to claim 1, it is characterised in that the pipeline mixer (5) nominal diameter is 200mm, length 1100mm, and its nominal diameter for offeing medicine mouth is 25mm, flow 108m3/hr；Institute State in sedimentation basin (7) and be provided with vertical-flow settling tank.
- 5. a kind of small towns domestic sewage processing system according to claim 1, it is characterised in that the filter (8) is Fiber rotary disc filter；The sterilizer (9) is tubular type ultraviolet ray disinfector；The sludge dewatering equipment (14) is folded spiral shell formula dehydration Machine.
- 6. a kind of small towns domestic sewage processing system according to claim 1, it is characterised in that described to cross water through hole (26) For rectangle orifice plate, 250-300 aperture, a diameter of 15mm of each aperture are provided with thereon.
- A kind of 7. small towns domestic sewage processing system according to claim 1, it is characterised in that the pipe distributor (27) nominal diameter is 200mm, length 1200mm, material PVC, is provided with 180-200 aperture thereon, each aperture A diameter of 15mm.
- A kind of 8. small towns domestic sewage processing system according to claim 1, it is characterised in that the moving-bed biofilm (35) a diameter of 25mm, length 5mm, specific surface area >=900m2/m3, proportion 0.96g/cm3。
- 9. a kind of small towns domestic sewage processing system according to claim 1, it is characterised in that the blower fan (15) is back Helical fan.
- 10. a kind of method for carrying out sewage disposal using any one of claim 1 to 9 small towns domestic sewage processing system, it is special Sign is, comprises the following steps：Step 1：Sanitary sewage is collected by pipe network, and imported except slag bath (1) removes oil removal；Step 2：Sewage after step 1 processing, which voluntarily flows into, removes sandstone in setting pot (2)；Step 3：Sewage after step 2 processing is voluntarily flowed into lift pot (3)；Step 4：Tubular type sewage lifting after step 3 is handled entered at the top of the first order reaction room (22) of anaerobic jar (16) Distributor (27), sewage flows from top to bottom, and it is secondary to carry out first with the moving-bed biofilm (35) in first order reaction room (22) Change reaction；The sewage of first order reaction room (22) passes through the lateral partitions between first order reaction room (22) and second order reaction room (23) (20) the water through hole (26) of crossing on enters second order reaction room (23), and sewage flows from bottom to top, and in second order reaction room (23) Moving-bed biofilm (35) carries out second of biochemical reaction；The sewage of second order reaction room (23) passes through second order reaction room (23) and three Pipe distributor (27) at the top of order reaction room (24), into third-order reaction room (24), sewage flows from top to bottom, anti-with three-level The moving-bed biofilm (35) in room (24) is answered to carry out third time biochemical reaction；The sewage of third-order reaction room (24) is anti-by three-level The water through hole (26) of crossing in the lateral partitions (20) between room (24) and fourth-order reaction room (25) is answered to enter fourth-order reaction room (25), Sewage is flowed from bottom to top, and the 4th biochemical reaction is carried out with the moving-bed biofilm (26) in fourth-order reaction room (25)；Then, Sequentially entered again to anoxic tank (17), the aerobic tank of one-level (18), the aerobic tank of two level (19), fortune from the sewage of anaerobic jar (16) outflow Row process is similar with anaerobic jar (16)；Step 5：Sewage after step 4 processing is entered in pipeline mixer (5) through the aerobic tank of two level (19), with it is complete from After the dephosphorization chemical reagent of dynamic chemicals feeder (6) input is sufficiently mixed, voluntarily flow into sedimentation basin (7)；Step 6：Sewage after step 5 processing sequentially enters filter (8), sterilizer (9), reuse water storage tank (10), two Level setting pot (11), Pasteur's measuring tank (12), discharge water purification；Step 7：Sludge after step 5 processing sequentially enters sludge storage tank (13), sludge dewatering equipment (14), discharges sludge Cake.
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| CN201710720521.8A Pending CN107381956A (en) | 2017-08-21 | 2017-08-21 | A kind of small towns domestic sewage processing system and method |
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| CN112551801A (en) * | 2020-11-01 | 2021-03-26 | 湖南强宇环保科技有限公司 | Breeding wastewater treatment method and system based on combined advanced oxidation technology |
| CN114804527A (en) * | 2022-04-30 | 2022-07-29 | 齐鲁工业大学 | Movable upflow MBBR integrated sewage treatment equipment and system |
| CN115108635A (en) * | 2022-06-14 | 2022-09-27 | 同济大学 | Two-stage moving bed biomembrane improved septic tank driven by solar energy |
| CN117964113A (en) * | 2024-04-02 | 2024-05-03 | 上海昱清环保工程有限公司 | Two-stage AO denitrification and dephosphorization sewage treatment equipment |
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| CN117964113B (en) * | 2024-04-02 | 2024-05-31 | 上海昱清环保工程有限公司 | Two-stage AO denitrification and dephosphorization sewage treatment equipment |
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