CN106348525A - Landscape ecological type city and down living sewage treatment method and system - Google Patents
Landscape ecological type city and down living sewage treatment method and system Download PDFInfo
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- CN106348525A CN106348525A CN201610775116.1A CN201610775116A CN106348525A CN 106348525 A CN106348525 A CN 106348525A CN 201610775116 A CN201610775116 A CN 201610775116A CN 106348525 A CN106348525 A CN 106348525A
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- 239000010865 sewage Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 73
- 238000001914 filtration Methods 0.000 claims abstract description 44
- 239000010802 sludge Substances 0.000 claims abstract description 28
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 20
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 20
- 239000001301 oxygen Substances 0.000 claims abstract description 20
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 20
- 239000011574 phosphorus Substances 0.000 claims abstract description 20
- 239000004744 fabric Substances 0.000 claims abstract description 18
- 238000005189 flocculation Methods 0.000 claims abstract description 17
- 230000016615 flocculation Effects 0.000 claims abstract description 17
- 239000000126 substance Substances 0.000 claims abstract description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims description 31
- 239000000945 filler Substances 0.000 claims description 19
- 239000004745 nonwoven fabric Substances 0.000 claims description 12
- 238000003672 processing method Methods 0.000 claims description 12
- 238000005273 aeration Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 22
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 11
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004062 sedimentation Methods 0.000 abstract 4
- 238000007599 discharging Methods 0.000 abstract 2
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 13
- 230000033116 oxidation-reduction process Effects 0.000 description 11
- 238000006396 nitration reaction Methods 0.000 description 9
- 230000003647 oxidation Effects 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 9
- 239000003344 environmental pollutant Substances 0.000 description 8
- 231100000719 pollutant Toxicity 0.000 description 8
- 239000002351 wastewater Substances 0.000 description 8
- 238000004065 wastewater treatment Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 239000002352 surface water Substances 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 239000000796 flavoring agent Substances 0.000 description 4
- 235000019634 flavors Nutrition 0.000 description 4
- 238000011068 loading method Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 241001494508 Arundo donax Species 0.000 description 2
- 241000684239 Canna x generalis Species 0.000 description 2
- 240000004661 Sporobolus indicus Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 241000589651 Zoogloea Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000007953 anoxia Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000002423 protozoacide Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 230000032258 transport 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- 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
- C02F2303/02—Odour removal or prevention of malodour
-
- 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
- C02F3/302—Nitrification and denitrification treatment
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention relates to a landscape ecological type city and down living sewage treatment method and system. The landscape ecological type city and down living sewage treatment method comprises the following steps: pretreating city and down living sewage, introducing into a landscape ecological combined pool, controlling the pH value, the ORP value and the dissolved oxygen value of the landscape ecological combined pond in real time, subsequently, automatically controlling to feed sodium carbonate into a last pool of the landscape ecological combined pool according to the pH value, introducing water treated in the landscape ecological combined pool into a secondary sedimentation tank for sedimentation, discharging part of precipitated sludge, and backflowing the rest sludge to the landscape ecological combined pool; and when the phosphorus of the effluent of the secondary sedimentation tank exceeds requirements, introducing water treated in the secondary sedimentation tank to a flocculation reaction tank, feeding a flocculant into the flocculation reaction tank, and filtering the water through a filtering cloth filtering tank of which the filtering precision is 10 [mu]m, and discharging the water out after requirements are met. The landscape ecological type city and down living sewage treatment system comprises the landscape ecological combined pool, a chemical phosphorus removal unit and a PLC control unit. The landscape ecological type city and down living sewage treatment method and system are high in sewage treatment efficiency and good in effect, and COD, BOD, ammonia nitrogen, total nitrogen and total phosphorus in the discharged water can be effectively removed.
Description
Technical field
The invention belongs to field of urban domestic sewage treatment is and in particular to a kind of landscape ecological formula town domestic sewage is processed
Method and system.
Background technology
(1) town domestic sewage discharge and disposal status
With the continuous propulsion of China's urbanization, the centralized residential district such as samll cities and towns, small towns, market town is constantly formed, and corresponds to therewith, city
Town total amount of sewage discharge constantly increases.2001-2012, China's wastewater emission amount rises to from 43,300,000,000 tons of calendar year 2001
68,500,000,000 tons in 2012, wastewater emission amount increased 25,200,000,000 tons, has discharged 2,100,000,000 tons of waste water every year on average, average year is multiple more
Close rate of increase about 4.3%.Town sewage discharge capacity accounts for wastewater emission amount ratio and rises to 2012 from the 53.2% of calendar year 2001
67.6%.The following continuous improvement with the level of urbanization, town sewage discharge capacity also will be continuously increased.
In these town sewages, much main sewage source is the sewage being discharged in people's life, does not contain due to work
Industry produces metal ion class, high ammonia nitrogen, the high phosphate pollutant such as the hardly degraded organic substance bringing, heavy metal, mainly dirty
Dye thing index is: cod < 300mg/l, bod < 200mg/l, ammonia nitrogen < 30 mg/l, total nitrogen < 40mg/l, total phosphorus < 3mg/l.This useless
Water bod/cod > 0.4, it is easy to microbial biochemical degraded, c/n/p ratio meets biochemical treatment requirement, and inventor is referred to as cities and towns life
Sewage alive.
For the process of this town domestic sewage, domestic most of at present urban wastewater treatment firms are in the strictest situation
Under, performed Chinese effluent standard is also only " urban wastewater treatment firm pollutant emission standard " (gb18918 2002)
Level a standard, much place also execute " urban wastewater treatment firm pollutant emission standard " (gb18918 2002) one-level b mark
Accurate.
But by Chinese population many, much local population density is big, environmental carrying capacity is little etc., and factor restricts, even if reaching above-mentioned mark
The urban wastewater treatment firm water outlet of quasi- discharge, receiving water body also cannot containing.Domestic a lot of place starts requirement urban life
Sewage treatment plant's tightened up " water environment quality standard " (gb3838-2002) class water of execution or even class water will
Ask.
(2) town domestic sewage processing method present situation
As noted previously, as town domestic sewage has the characteristics that biodegradability is good, its sewage water treatment method is mainly at biochemistry
Logos.Traditional town domestic sewage facture can be divided into two big class again, i.e. activated sludge process and biomembrance process two big class.
(1) activated sludge process
Town domestic sewage process in common activated sludge process, be a(anoxia)/o(is aerobic) activated sludge process, and in this base
The oxidation ditch process that is derived on plinth, sbr method (sequence bioreactor) etc..
Traditional activated sludge process is relatively low due to sludge concentration, typically in 2500 ~ 3000mg/l, thus leading to volumetric loading
Relatively low, biochemical system floor space is larger；Effluent quality standard is relatively low, at most meets " urban wastewater treatment firm pollutant emission
Standard " (gb18918 2002) one-level a standard, much place also execute " urban wastewater treatment firm pollutant emission standard "
(gb18918 2002) one-level b standard.
Mbr(membrane bioreactor) be also activated sludge process one kind, biochemical system is ensured by the centrifugation of film
Interior sludge concentration reaches higher level (sludge concentration is typically between 7000 ~ 8000mg/l) so that the volumetric loading of mbr
Height, typically below 0.45 μm, less than float diameters such as microorganisms most in water, water outlet is limpid, such as membrane aperture in addition
Fruit is aided with enough nitration denitrification designs, can obtain more preferable removal effect.But the investment of mbr method is big, runs, maintenance cost
Height, not here repeat.
(2) biological contact oxidation process
The conventional biomembrance process in processing of town domestic sewage is biological contact oxidation process, 20 century 70 Japan, U.S. etc.
Begin one's study and apply, be widely used at home at present.
Biological contact oxidation process, is setting filler in pond, is attached to the biomembrane absorption degradation sewage on filler using dwelling
In Organic substance, n, p etc., sewage is purified.This method carries out oxygenation by the bottom of pond aeration, mechanical agitation etc. to sewage,
And make sewage in cell body be in flow regime, to ensure that sewage is fully contacted with the biomembrane on filler.
Typical biological contact oxidation process has a characteristic that unit volume in pond compared with common activated sludge process
Biomass is higher, thus having higher volumetric loading；Surplus sludge volume is few, there is not sludge bulking problem, also need not carry out
Sludge reflux, operational management is easy.Biomembrane in biological contact oxidation pond by zoogloea, filamentous bacteria, funguses, protozoacide and
Metazoa forms.In activated sludge process, filamentous bacteria is often the factor affecting normal bio purification；And connect in biology
In tactile oxidation pond, filamentous bacteria spatially structure between filler space, considerably increase the contact surface of biofacies and waste water.
Biological contact oxidation process FAQs: Fillers selection is unreasonable, leads to biomembrane on filler to be piled up agglomerating, leads to give birth to
Thing film is significantly reduced with the surface area of waste water, and then leads to contaminant removal efficiency to decline.Filler type of feed is unreasonable,
Lead to the phenomenons such as blocking, channel, and then lead to contaminant removal efficiency to decline.Also result in maintenance maintenance inconvenience.Water distribution, aeration
Mode etc. is unreasonable, leads to the phenomenons such as the uneven, overexposure in water distribution dead band, aeration, and then leads to contaminant removal efficiency to decline, transports
Row cost increases.
The shortcoming of traditional wastewater facture:
Traditional activated sludge process and biomembrance process, its process object be all with Organic substance (conventional represent index as cod or bod)
For main process object, all ignore the removal of n, p, the especially removal of n, this point is from " urban wastewater treatment firm pollutes
Thing discharge standard " (gb18918 2002) just can be seen that to the controlling value of the indexs of correlation such as cod, bod, n, p.
In the sewage water treatment method water outlet of traditional town, ammonia nitrogen, the discharge standard of total nitrogen substantially can not meet " surface water environment
Quality standard " (gb3838-2002) requirement.Water outlet after making urban wastewater treatment if necessary reaches " surface water environment quality
Standard " (gb3838-2002) requirement, for indexs such as cod, bod it is only necessary to strengthening biochemical treatment measure, such as extend water
The power time of staying, raising sludge concentration etc., you can realize, this ripe method is a lot；For p index it is only necessary to strengthen
On the basis of biological phosphate-eliminating, by increasing coagulation treatment measure, also can achieve, this ripe method is also a lot.But at present
Effective minimizing technology for ammonia nitrogen, total nitrogen is few.
Content of the invention
For the problems referred to above, the present invention proposes a kind of landscape ecological formula town domestic sewage processing method and system, is
By synchronous nitration/denitrification principle, plant denitrogenates phosphorus principle, landscape ecological theory is combined with traditional nitration denitrification scheduling theory
Town domestic sewage treatment technology and system, the problem overcoming existing town domestic sewage treatment technology to exist, realize water outlet
Water quality index cod≤30mg/l, bod≤6mg/l, ammonia nitrogen≤1.5mg/l, total nitrogen≤1.5mg/l, total phosphorus≤0.3mg/l, reach
(gb3838-2002) in " surface water quality environmental quality standards ", the respective standard of iv class water requires, and eliminates abnormal flavour, reduction simultaneously
Operation cost, realize sewage treatment facility landscape.
Technical scheme is as follows:
Above-mentioned landscape ecological formula town domestic sewage processing method, specifically by town domestic sewage after pretreatment, is passed through
Landscape ecological combines ph value, orp value and the dissolved oxygen value that pond real-time control landscape ecological combine in pond；Then according to ph value certainly
Dynamic control puts into soda into landscape ecological combination last pond of pond；Again landscape ecological is combined the water after pond is processed to be passed through
Precipitated to second pond, a part of mud after precipitation is discharged, another part mud is then back to landscape ecological combination pond
Interior；When secondary clarifier effluent phosphorus is beyond requiring, the water after processing through second pond is passed in flocculation tank and anti-to flocculation
Put into flocculant in Ying Chi, be after 10 μm of filtering cloth filtering pools filter, to reach requirement discharge through filtering accuracy.
Described landscape ecological formula town domestic sewage processing method, wherein: described flocculant uses aluminium polychlorid.
Described landscape ecological formula town domestic sewage processing method, wherein: described second pond is back to described landscape ecological
In combination pond sludge reflux amount be described in after the pretreatment that processes per hour the sewage water yield 30%.
A kind of landscape ecological formula town domestic sewage processing system, including landscape ecological combination pond, chemical dephosphorization unit and
Plc control unit；Described landscape ecological combination pond is sequentially connected by least five Landscape ecologic pools and forms；Described chemical dephosphorization list
Unit includes second pond, flocculation tank and filtering cloth filtering pool；The input of described second pond and last described Landscape ecologic pool
Outlet be connected；The input of described flocculation tank is connected with the outfan of described second pond；Described filtering cloth filtering pool defeated
Enter end to be connected with the outfan of described flocculation tank, the outfan draining of described filtering cloth filtering pool；Described plc control unit and institute
State described landscape ecological combination pond electrical connection, described plc control unit includes switch board, is installed in compiling in described switch board
Range controller and industrial computer.
Described landscape ecological formula town domestic sewage processing system, wherein: each described Landscape ecologic pool is all filled with grid
Shape combined stuffing；The bottom of described palisade combined stuffing away from described Landscape ecologic pool at the bottom of pond 0.8m, described palisade combined stuffing
Top is less than water surface 0.2m；The cotton-shaped activity containing concentration in each described landscape ecological pool inner water in 1000 ~ 1500 mg/l is dirty
Mud, its sludge volume index is between 80 ~ 100ml/g；The water surface of each described Landscape ecologic pool completely sods thing basketry, described plant
It is packed full with plantation haydite, 50 ~ 150mm below the basketry bottom immersion water surface inside thing basketry.
Described landscape ecological formula town domestic sewage processing system, wherein: described palisade combined stuffing is in integrally curtain bag
Columnar structure, by multi-disc pp material and density is in 0.90 ~ 1.0g/cm for it3Non-woven fabrics composition, upper and lower ends are detachable to be provided with
The skeleton of stainless steel, also added with mass in its bottom skeleton, so that entirely described combined stuffing is natural in water by focusing on
Stand；Described in adjacent two panels, between non-woven fabrics, spacing is 100mm, and the width of every described non-woven fabrics is 1000mm, and length is by institute
The filler setting height(from bottom) stating Landscape ecologic pool determines；Described non-woven fabrics arrange wide 50mm × 460mm every 100mm in the width direction
Hole, between neighbouring hole clear distance be 200mm.
Described landscape ecological formula town domestic sewage processing system, wherein: described landscape ecological combination pond includes the first scape
See ecological pool, the second Landscape ecologic pool, the 3rd Landscape ecologic pool, the 4th Landscape ecologic pool and the 5th Landscape ecologic pool；Described
Orp/ph analyzer is installed in one Landscape ecologic pool, described orp/ph analyzer is electrically connected with described plc control unit；Described
Orp and do analyzer is installed in the second Landscape ecologic pool, described orp and do analyzer is electrically connected with described plc control unit；
In described 3rd Landscape ecologic pool, orp/ph and do analyzer is installed, described orp/ph and do analyzer is controlled with described plc
Unit electrically connects；In described 4th Landscape ecologic pool, orp/ph and do analyzer is installed, described orp/ph and do analyzer with
Described plc control unit electrical connection；In described 5th Landscape ecologic pool, do/ph analyzer is installed, described do/ph analyzer
Electrically connect with described plc control unit.
Described landscape ecological formula town domestic sewage processing system, wherein: described first Landscape ecologic pool, the second landscape life
The at the bottom of pond of state pond and the 3rd Landscape ecologic pool adopts perforated pipe air blast stirring, described 4th Landscape ecologic pool and the 5th landscape ecological
The at the bottom of pond in pond adopts microporous diaphragm aeration tube aeration oxygen supply.
Described landscape ecological formula town domestic sewage processing system, wherein: the filtering accuracy of described filtering cloth filtering pool is 10 μm.
Landscape ecological formula town domestic sewage processing method reasonable idea of the present invention, operating process is simple, synchronous by inciting somebody to action
Nitrification/denitrification principle, plant denitrogenate phosphorus principle, landscape ecological theory is combined with traditional nitration denitrification scheduling theory, application
Process in town domestic sewage, realize effluent quality index cod≤30mg/l, bod≤6mg/l, ammonia nitrogen≤1.5mg/l, total nitrogen
≤ 1.5mg/l, total phosphorus≤0.3mg/l, reach the phase of iv class water in (gb3838-2002) " surface water quality environmental quality standards "
Answer standard to require, sewage disposal system can be made to become while realizing removing the pollutant such as carbon, nitrogen, phosphorus in town domestic sewage
For plants landscape.
Landscape ecological formula town domestic sewage processing system structure design of the present invention is simple, rationally, by by synchronous nitration/
Denitrification principle, plant denitrogenate phosphorus principle, landscape ecological theory is combined with traditional nitration denitrification scheduling theory, higher in realization
While effluent quality standard, aerobic aeration stage (the 5th Landscape ecologic pool) hrt only traditional activated sludge process or biology connect
It is contemplated that total aeration rate can reduce 30%, the corresponding power consumption cost that runs can reduce by 25% to 1/2nd of tactile oxidizing process.By landscape ecological
Theory be applied to town domestic sewage process, landscape ecological combine water face completely plant (in addition to aisle) as Canna generalis Bailey, Rhizoma Acori Graminei,
The emergent aquactic plants such as Herba Lythri Salicariae, hay grass, Arundo donax, the pollutant such as ammonia nitrogen in going eliminating water, phosphorus simultaneously, can intercept, adsorb
Purify the abnormal flavour producing in sewage disposal process, through reasonably combined plant, plants landscape can be formed.
Brief description
Fig. 1 is the structural representation of landscape ecological formula town domestic sewage processing system of the present invention；
Fig. 2 is the structural representation in the landscape ecological combination pond of landscape ecological formula town domestic sewage processing system of the present invention；
Fig. 3 is the enlarged drawing in a region in Fig. 2 of landscape ecological formula town domestic sewage processing system of the present invention；
Fig. 4 is the palisade combined stuffing in each Landscape ecologic pool in landscape ecological formula town domestic sewage processing system of the present invention
Structural representation.
Specific embodiment
Landscape ecological formula town domestic sewage processing method of the present invention, specifically by town domestic sewage through common such as
After the operation pretreatment such as grid, aerated grit chamber, it is passed through in landscape ecological combination pond real-time control landscape ecological combination pond
Ph value, orp value, dissolved oxygen value etc.；Automatically controlled according to ph value and put into soda into landscape ecological combination last pond of pond；
Landscape ecological is combined the water after pond is processed and be passed through and precipitated to second pond, a part of mud after precipitation is discharged, another
Partial sludge is then back in landscape ecological combination pond；When secondary clarifier effluent phosphorus is beyond requiring, after processing through second pond
Water is passed in flocculation tank and puts into flocculant (aluminium polychlorid) into flocculation tank, is 10 μm of filters through filtering accuracy
Requirement discharge is reached, the cod in the water of discharge, bod, ammonia nitrogen, total nitrogen, total phosphorus have respectively obtained and effectively gone after cloth filter
Remove.
Wherein, after filtering in filtering cloth filtering pool, need to being passed into again in second pond containing pulp water of residual carries out secondary precipitation.Above-mentioned
Town domestic sewage major pollutants index be: cod < 300mg/l, bod < 200mg/l, ammonia nitrogen < 30 mg/l, total nitrogen <
40mg/l, total phosphorus<3mg/l, this waste water bod/cod>0.4, are easy to microbial biochemical degraded, c/n/p ratio meets synchronous nitre
Change/denitrification requires.
Synchronous nitration/denitrification principle, plant are denitrogenated phosphorus principle, landscape ecological theory and the reasons such as traditional nitration denitrification
By the town domestic sewage treatment technology combining and system, realize town domestic sewage process after effluent quality index cod≤
30mg/l, bod≤6mg/l, ammonia nitrogen≤1.5mg/l, total nitrogen≤1.5mg/l, total phosphorus≤0.3mg/l, reach (gb3838-2002)
In " surface water quality environmental quality standards ", the respective standard of iv class water requires, and eliminates abnormal flavour simultaneously, reduces and run power consumption cost
30%th, realize sewage treatment facility landscape.
As shown in Figures 1 to 4, landscape ecological formula town domestic sewage processing system of the present invention, combines pond including landscape ecological
1st, chemical dephosphorization unit 2 and plc control unit 3.
This landscape ecological combines the pond group that pond 1 is electrically connected with plc control unit 3 and is connected by five Landscape ecologic pools
Become, that is, include the first Landscape ecologic pool 11, the second Landscape ecologic pool 12, the 3rd Landscape ecologic pool 13, the 4th Landscape ecologic pool 14
With the 5th Landscape ecologic pool 15；This first Landscape ecologic pool 11, the second Landscape ecologic pool 12, the 3rd Landscape ecologic pool the 13, the 4th
Landscape ecologic pool 14 and the hrt(hydraulic detention time of the 5th Landscape ecologic pool 15) it is respectively 1h, 1h, 3h, 2h, 3h, the depth of water is equal
For 5 ~ 5.5m.
In this first Landscape ecologic pool 11 pond, a side bottom is provided with the first water inlet, and relatively another side roof part is provided with first and goes out
The mouth of a river and by first outlet connect the second Landscape ecologic pool 12；This second Landscape ecologic pool 12 side is by the first landscape ecological
The first outlet water inlet in pond 11, relatively another side bottom is provided with the second outlet and connects the 3rd landscape by the second outlet
Ecological pool 13；3rd Landscape ecologic pool 13 side is by the second outlet water inlet of the second Landscape ecologic pool 12, opposite side relatively
Bottom is provided with the 3rd outlet and connects the 4th Landscape ecologic pool 14 by the 3rd outlet；4th Landscape ecologic pool 14 side
By the 3rd outlet water inlet of the 3rd Landscape ecologic pool 13, relatively another side bottom is provided with the 4th outlet and passes through the 4th water outlet
Mouth connection the 5th Landscape ecologic pool 15；5th Landscape ecologic pool 15 side is entered by the 4th outlet of the 4th Landscape ecologic pool 14
Water, relatively another side bottom is provided with the 5th outlet and is communicated to chemical dephosphorization unit 2 by the 5th outlet.
The at the bottom of pond of this first Landscape ecologic pool 11, the second Landscape ecologic pool 12 and the 3rd Landscape ecologic pool 13 adopts perforated pipe
16 air blast stirrings, the at the bottom of pond of the 4th Landscape ecologic pool 14 and the 5th Landscape ecologic pool 15 is exposed using microporous diaphragm aeration tube 17
Gas oxygen supply.In this first Landscape ecologic pool 11 pond, orp(oxidation-reduction potential is installed)/ph analyzer, this orp(oxidoreduction
Current potential)/ph analyzer electrically connected with plc control unit 3, and pool inner water upflow velocity is not less than 0.3m/h, and in pool inner water, orp controls
Between (- 450mv) ~ (- 350mv), ph controls 7.5 about.Orp(oxidation is installed in this second Landscape ecologic pool 12 pond
Reduction potential) and do(dissolved oxygen) analyzer, this orp(oxidation-reduction potential) and do(dissolved oxygen) analyzer is with plc control singly
Unit 3 electrical connection, in pool inner water, between (- 350mv) ~ (- 300mv), ph controls 7.5 about do < 0.5mg/l, orp.This
Three Landscape ecologic pool 13 is provided with orp(oxidation-reduction potential in pond)/ph and do(dissolved oxygen) analyzer, this orp(oxidoreduction
Current potential)/ph and do(dissolved oxygen) analyzer electrically connected with plc control unit 3, do(dissolved oxygen in pool inner water) in 0.5 ~ 1.0mg/
Between l, orp(oxidation-reduction potential) between (- 150mv) ~ (- 100mv), ph controls 7.5 about.4th landscape ecological
Pond 14 is provided with orp(oxidation-reduction potential in pond)/ph and do(dissolved oxygen) analyzer, this orp(oxidation-reduction potential)/ph and
Do(dissolved oxygen) analyzer electrically connected with plc control unit 3, do(dissolved oxygen in pool inner water) between 1.0 ~ 1.5mg/l, orp
(oxidation-reduction potential), between (- 85mv) ~ (0mv), ph controls 7 about.5th Landscape ecologic pool 15 is provided with pond
Do(dissolved oxygen)/ph analyzer, this do(dissolved oxygen)/ph analyzer electrically connected with plc control unit 3, do(dissolving in pool inner water
Oxygen) between 3.0 ~ 4.0mg/l, by plc control unit 3 and do(dissolved oxygen)/ph analyzer is chain, is automatically obtained soda
Add, so that the ph value of pool inner water is controlled 7 about.
Each Landscape ecologic pool is all filled with the palisade combined stuffing 4 of pp non-woven fabrics material；This palisade combined stuffing 4 is covered with
Plane in each Landscape ecologic pool, its bottom is less than water surface 0.2m away from landscape ecological at the bottom of pond 0.8m, top.Each landscape is given birth to
In state pool inner water contain concentration 1000 ~ 1500 mg/l cotton-shaped activated sludge, its sludge volume index 80 ~ 100ml/g it
Between.The water surface of each Landscape ecologic pool completely sods thing basketry 41(in addition to aisle), this plant basketry 41 length, width and height a size of 1000
× 500 × 500mm, inside is packed full with plantation haydite, 50 ~ 150mm below the basketry bottom immersion water surface, plantation Canna generalis Bailey in basketry,
The emergent aquactic plants such as Rhizoma Acori Graminei, Herba Lythri Salicariae, hay grass, Arundo donax.
This palisade combined stuffing 4 is to be vertically mounted in Landscape ecologic pool and adjacent combination level of filler installing space is
200mm；The planar dimension of palisade combined stuffing 4 be 1000*500mm, length between 3500 ~ 4000mm, by Landscape ecologic pool
Filler setting height(from bottom) determine.This palisade combined stuffing 4 is overall to be in curtain bag configuration, its by multi-disc pp material, density exists
0.90~1.0g/cm3Non-woven fabrics composition, the spacing between adjacent two panels non-woven fabrics is 100mm, and every non-woven fabrics width is
1000mm, length is fixed by the filler setting height(from bottom) of Landscape ecologic pool, arranges wide 50mm × 460mm every 100mm in the width direction
Hole, between neighbouring hole clear distance be 200mm.The upper and lower ends of this palisade combined stuffing 4 are detachable respectively to be provided with
The upper filler framework 42 of stainless steel and lower filler framework 43；On this, filler framework 42 is formed around the first link button
421；This lower filler framework 43 is formed around the second connection button 431 and inside is also equipped with mass 44, so that whole grid
Reliable certainly the focusing in water of shape combined stuffing 4 stands naturally.The top of this palisade combined stuffing 4 is formed around the 3rd connection button 44
And by the 3rd link button 44 with the first of upper filler framework 42 surrounding link button 421 mate be connected, this palisade combine fill out
Expect that 4 bottom is formed around the 4th connection button 45 and is connected with the second of lower filler framework 43 surrounding by the 4th connection button 45
Connect button 431 coupling to connect.
This landscape ecological combines pond 1 under plc control unit 3 control, the 3rd Landscape ecologic pool 13 effluent recycling to first
Capacity of returns q1 of Landscape ecologic pool 11 water inlet and the orp(oxidation-reduction potential of the first Landscape ecologic pool 11) chain control.?
Under plc control unit 3 controls, the capacity of returns of the 5th Landscape ecologic pool 15 effluent recycling to the 3rd Landscape ecologic pool 13 water inlet
Q2 and the orp(oxidation-reduction potential of the 3rd Landscape ecologic pool 13) chain control；5th Landscape ecologic pool 15 effluent recycling is extremely
Capacity of returns q3 of the 4th Landscape ecologic pool 14 water inlet and the orp(oxidation-reduction potential of the 4th Landscape ecologic pool 14) chain control
System.
This chemical dephosphorization unit 2 includes second pond 21, flocculation tank 22 and filtering cloth filtering pool 23；The input of this second pond 21
End is connected with the 5th outlet of the 5th Landscape ecologic pool 15, and the surface loading of this second pond 21 is 1.0m/.h；This wadding
The input of solidifying reaction tank 22 is connected with the outfan of second pond 21, and the flocculant adding in this flocculation tank 22 pond is pac
(aluminium polychlorid)；The input of this filtering cloth filtering pool 23 is connected with the outfan of this flocculation tank 22, this filtering cloth filtering pool 23
Outfan standard water discharge is discharged, and the filtering accuracy of this filtering cloth filtering pool 23 is 10 μm.Wherein, the mud that this second pond 21 precipitates
Middle a part of mud is discharged, the water inlet of another part sludge reflux to the second Landscape ecologic pool 12, and capacity of returns q4 is often little
When system process the water yield 30% about.
This plc control unit 3 includes switch board, the Programmable Logic Controller being installed in switch board and industrial computer.This plc is controlled
Unit 3 processed acts on to the process control of whole system, is embodied in capacity of returns and corresponding orp(oxidation-reduction potential) chain control
System, air blast air demand and do(dissolved oxygen) between chain control, the control of flocculant dosage, the filtration of filtering cloth filtering pool 23 and
Backwash controls.
Synchronous nitration/denitrification principle, plant are denitrogenated phosphorus principle, landscape ecological theory and tradition and nitrify anti-nitre by the present invention
Change the town domestic sewage treatment technology that scheduling theory combines, overcome asking of existing town domestic sewage treatment technology presence
Topic, realize effluent quality index cod≤30mg/l, bod≤6mg/l, ammonia nitrogen≤1.5mg/l, total nitrogen≤1.5mg/l, total phosphorus≤
0.3mg/l, the respective standard reaching iv class water in (gb3838-2002) " surface water quality environmental quality standards " requires, simultaneously
Eliminate abnormal flavour, cut operating costs, realize sewage treatment facility landscape.
Claims (9)
1. a kind of landscape ecological formula town domestic sewage processing method, specifically by town domestic sewage after pretreatment, is passed through
Landscape ecological combines ph value, orp value and the dissolved oxygen value that pond real-time control landscape ecological combine in pond；Then according to ph value certainly
Dynamic control puts into soda into landscape ecological combination last pond of pond；Again landscape ecological is combined the water after pond is processed to be passed through
Precipitated to second pond, a part of mud after precipitation is discharged, another part mud is then back to landscape ecological combination pond
Interior；When secondary clarifier effluent phosphorus is beyond requiring, the water after processing through second pond is passed in flocculation tank and anti-to flocculation
Put into flocculant in Ying Chi, be after 10 μm of filtering cloth filtering pools filter, to reach requirement discharge through filtering accuracy.
2. landscape ecological formula town domestic sewage processing method as claimed in claim 1 it is characterised in that: described flocculant is adopted
It is aluminium polychlorid.
3. landscape ecological formula town domestic sewage processing method as claimed in claim 1 it is characterised in that: described second pond returns
Flow to described landscape ecological combine sludge reflux amount in pond be described in after the pretreatment that processes per hour the sewage water yield 30%.
4. a kind of landscape ecological formula of described landscape ecological formula town domestic sewage processing method as arbitrary in claims 1 to 3
Town domestic sewage processing system it is characterised in that: described processing system include landscape ecological combination pond, chemical dephosphorization unit and
Plc control unit；
Described landscape ecological combination pond is sequentially connected by least five Landscape ecologic pools and forms；
Described chemical dephosphorization unit includes second pond, flocculation tank and filtering cloth filtering pool；The input of described second pond is with finally
The outlet of one described Landscape ecologic pool is connected；The outfan phase of the input of described flocculation tank and described second pond
Even；The input of described filtering cloth filtering pool is connected with the outfan of described flocculation tank, the outfan draining of described filtering cloth filtering pool；
Described plc control unit combine with described landscape ecological pond electrical connection, described plc control unit include switch board,
Programmable Logic Controller, industrial computer and the software system being installed on described industrial computer being installed in described switch board.
5. landscape ecological formula town domestic sewage processing system as claimed in claim 4 it is characterised in that: each described landscape
Ecological pool is all filled with palisade combined stuffing；The bottom of described palisade combined stuffing is away from described Landscape ecologic pool at the bottom of pond 0.8m, institute
The top stating palisade combined stuffing is less than water surface 0.2m；
The cotton-shaped activated sludge in 1000 ~ 1500 mg/l for the concentration, its sludge volume is contained in each described landscape ecological pool inner water
Index is between 80 ~ 100ml/g；
The water surface of each described Landscape ecologic pool completely sods thing basketry, is packed full with plantation haydite, basketry inside described plant basketry
50 ~ 150mm below the bottom immersion water surface.
6. landscape ecological formula town domestic sewage processing system as claimed in claim 5 it is characterised in that: the combination of described palisade
Filler is in integrally curtain bag configuration, and by multi-disc pp material and density is in 0.90 ~ 1.0g/cm for it3Non-woven fabrics composition, upper and lower two
Hold the detachable skeleton being provided with stainless steel, also added with mass in its bottom skeleton, so that entirely described combination is filled out
Material stands naturally by focusing in water；
Described in adjacent two panels, between non-woven fabrics, spacing is 100mm, and the width of every described non-woven fabrics is 1000mm, and length is by described
The filler setting height(from bottom) of Landscape ecologic pool determines；Described non-woven fabrics arrange wide 50mm × 460mm's every 100mm in the width direction
Hole, between neighbouring hole, clear distance is 200mm.
7. landscape ecological formula town domestic sewage processing system as claimed in claim 4 it is characterised in that: described landscape ecological
Combination pond includes the first Landscape ecologic pool, the second Landscape ecologic pool, the 3rd Landscape ecologic pool, the 4th Landscape ecologic pool and the 5th scape
See ecological pool；Orp/ph analyzer is installed in described first Landscape ecologic pool, described orp/ph analyzer is controlled with described plc
Unit electrically connects；Orp and do analyzer, described orp and do analyzer and described plc are installed in described second Landscape ecologic pool
Control unit electrically connects；In described 3rd Landscape ecologic pool, orp/ph and do analyzer is installed, described orp/ph and do measures
Instrument is electrically connected with described plc control unit；In described 4th Landscape ecologic pool, orp/ph and do analyzer is installed, described orp/
Ph and do analyzer is electrically connected with described plc control unit；In described 5th Landscape ecologic pool, do/ph analyzer is installed, institute
State do/ph analyzer to electrically connect with described plc control unit.
8. landscape ecological formula town domestic sewage processing system as claimed in claim 7 it is characterised in that: described first landscape
The at the bottom of pond of ecological pool, the second Landscape ecologic pool and the 3rd Landscape ecologic pool adopts perforated pipe air blast to stir, described 4th landscape life
The at the bottom of pond of state pond and the 5th Landscape ecologic pool adopts microporous diaphragm aeration tube aeration oxygen supply.
9. landscape ecological formula town domestic sewage processing system as claimed in claim 4 it is characterised in that: described filtering cloth filtering pool
Filtering accuracy be 10 μm.
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| CN201610775116.1A CN106348525A (en) | 2016-08-31 | 2016-08-31 | Landscape ecological type city and down living sewage treatment method and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102092900A (en) * | 2010-12-29 | 2011-06-15 | 江南大学 | Method for treating micro polluted water by using biological nitrogen removal and physicochemical enhanced phosphorus removal combined process |
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