CN103979734A - Buried domestic sewage treatment system - Google Patents
Buried domestic sewage treatment system Download PDFInfo
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- CN103979734A CN103979734A CN201410212512.4A CN201410212512A CN103979734A CN 103979734 A CN103979734 A CN 103979734A CN 201410212512 A CN201410212512 A CN 201410212512A CN 103979734 A CN103979734 A CN 103979734A
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- water
- sludge
- contact oxidation
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- 239000010865 sewage Substances 0.000 title claims abstract description 94
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 76
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 42
- 230000003647 oxidation Effects 0.000 claims abstract description 36
- 239000010802 sludge Substances 0.000 claims abstract description 32
- 230000001954 sterilising effect Effects 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 238000005345 coagulation Methods 0.000 claims abstract description 15
- 230000015271 coagulation Effects 0.000 claims abstract description 15
- 238000005273 aeration Methods 0.000 claims abstract description 12
- 239000002562 thickening agent Substances 0.000 claims abstract description 12
- 239000005416 organic matter Substances 0.000 claims abstract description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000007667 floating Methods 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 54
- 238000004659 sterilization and disinfection Methods 0.000 claims description 45
- 230000008569 process Effects 0.000 claims description 40
- 239000000945 filler Substances 0.000 claims description 24
- 230000000694 effects Effects 0.000 claims description 23
- 238000013461 design Methods 0.000 claims description 22
- 238000012545 processing Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 13
- 230000008901 benefit Effects 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 11
- 230000000813 microbial effect Effects 0.000 claims description 9
- 239000006228 supernatant Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 6
- 239000005446 dissolved organic matter Substances 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 6
- 230000002550 fecal effect Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 235000011089 carbon dioxide Nutrition 0.000 claims description 4
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 4
- 238000006731 degradation reaction Methods 0.000 claims description 4
- 238000011068 loading method Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 claims description 3
- 230000003197 catalytic effect Effects 0.000 claims description 3
- 230000007062 hydrolysis Effects 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- 238000006213 oxygenation reaction Methods 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract 3
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 230000029087 digestion Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000005276 aerator Methods 0.000 description 14
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 11
- 244000005700 microbiome Species 0.000 description 11
- 239000002351 wastewater Substances 0.000 description 11
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 8
- 239000004155 Chlorine dioxide Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 235000019398 chlorine dioxide Nutrition 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000031018 biological processes and functions Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000003245 working effect Effects 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
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- 230000032683 aging Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
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- 238000006385 ozonation reaction Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 230000001717 pathogenic effect Effects 0.000 description 4
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- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000004065 wastewater treatment Methods 0.000 description 4
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 3
- 239000010431 corundum Substances 0.000 description 3
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- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 description 3
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- 241001148470 aerobic bacillus Species 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
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Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a buried domestic sewage treatment system, comprising a grille regulating reservoir, a biological contact oxidation pond, a coagulation reaction pool, a settling pond, a sludge thickener, a sterilizing device, a draught fan and liquid level control equipment. The sewage enters a digestion tank, large particles, settleable solid and floating dregs are intercepted, effluent enters the grille regulating reservoir, and is lifted to the biological contact oxidation pond by a sewage pump, the pre-treated sludge is subjected to aerobic biological treatment through the biological contact oxidation pond, an organic matter is degraded into carbon dioxide and water under the action of oxygenic aeration and a biological membrane, the effluent enters the settling pond to be subjected to mud-water separation, then the processed water is discharged, the sludge is lifted to a sludge-tank by a slime pump, and the sludge is outwards transported after being concentrated while the supernate is returned to the regulating reservoir to retreat.
Description
Technical field
The present invention relates to sewage treatment area, is specifically a kind of embedded type domestic sewage disposal system.
Background technology
The processing of sanitary sewage is at present with biochemical treatment mostly or uses chemically treated way, such as A/O anaerobic-aerobic (active sludge) technique, blodisc and oxidation ditch process etc. of biological treatment, although above-mentioned treatment process has certain effect, but due to do not weigh the water quality, the water yield, production technique of waste water comprehensively and with wastewater treating technology through comprehensive suitability, therefore treatment facility treatment effect is unstable mostly, and working cost is also high.
In recent years, along with research and the application of sewage disposal technology are further goed deep into, for a wide and optimistic space has been opened up in the development of domestic sewage treatment, for a beautiful blueprint has been drawn in the optimization of environmental ecology.
In China, domestic sewage treatment technology is ripe gradually.Conventionally the treatment process adopting has: the way that physico-chemical process, biological process and biochemical materialization combine etc.
(1) so-called physico-chemical process is to utilize physical action and chemical reaction, pollution substance and inorganics or the organic solute of main suspended state in separated waste water.This method is comparatively simple, economical.Main treatment technology has: neutralization, adjusting, filtration, precipitation, centrifugation, floating, coagulation etc.Physico-chemical process working cost is higher, is generally used for coagulation, tertiary treatment or the advanced treatment of waste water.
(2) so-called biological process is the metabolic function that utilizes microorganism, makes the organic contamination that is dissolving and colloidal state in water degrade and be converted into innoxious substance, and waste water is evolved.Biological process is to use at present a kind for the treatment of process comparatively widely, is usually used in the second-stage treatment of waste water.
Be more than sanitary sewage disposal general method, wherein physico-chemical process treatment effect is poor, and chemical method is required, and to add pharmaceutical quantities large, therefore all unsuitable as main processing scheme.Again because the BOD of intaking in the design
5/ COD
crmore than 50mg/L, biodegradability is stronger.Only through one-level materialization, process and can not guarantee that the comprehensive index of sewage is up to standard, and biological process is also a kind of comparatively general treatment process, if reasonable in design, rational management, biological process is very fruitful method, therefore the design intends adopting biological contact oxidation process as main processing scheme.
Biological treatment has that volumetric loading is high, the residence time is short, organic matter removal is effective, impact load have few compared with strong adaptive faculty, sludge creation amount, without sludge reflux, the advantage such as operational management is simple and floor space is little.
Summary of the invention
The object of the invention is to provides a kind of embedded type domestic sewage disposal system at this; Sewage enters septic tank, its macrobead, can sink solid and floating matter and be blocked, water outlet enters grid equalizing tank, by sump pump, be promoted to biological contact oxidation pond, through pretreated sewage, by biological contact oxidation pond, carry out aerobe processing again, under oxygenic aeration and biomembranous effect, organic matter degradation is carbonic acid gas and water, water outlet enters after settling tank mud-water separation, processing water is discharged, and mud is promoted to sludge sump by slush pump, after concentrated, mud outward transport, and supernatant liquor returns to equalizing tank and processes.
The present invention is achieved in that a kind of embedded type domestic sewage disposal system of structure, it is characterized in that: comprise grid equalizing tank, biological contact oxidation pond, coagulation reaction tank, settling tank, sludge thickener, sterilizing unit, blower fan, liquid level operating device; By biological contact oxidation pond, coagulation reaction tank, settling tank, sludge thickener, form apparatus for treating sewage;
Septic tank is connected logical with grid equalizing tank, grid equalizing tank is connected logical with biological contact oxidation pond, biological contact oxidation pond is connected logical with coagulation reaction tank, coagulation reaction tank is connected logical with settling tank, settling tank is connected logical with sludge thickener, sterilizing unit is connected logical with settling tank rising pipe, metering chemical feeding device is connected with coagulation reaction tank; Described liquid level operating device is connected with sterilizing unit, metering chemical feeding device and submersible sewage pump and controls its operation.
One way of life sewage water treatment method, is characterized in that: flow process is as follows:
Sewage enters septic tank, its macrobead, can sink solid and floating matter and be blocked, water outlet enters grid equalizing tank, by sump pump, be promoted to biological contact oxidation pond, through pretreated sewage, by biological contact oxidation pond, carry out aerobe processing again, under oxygenic aeration and biomembranous effect, organic matter degradation is carbonic acid gas and water, water outlet enters after settling tank mud-water separation, processing water is discharged, and mud is promoted to sludge sump by slush pump, after concentrated, mud outward transport, and supernatant liquor returns to equalizing tank and processes.
Described equalizing tank: the object that plays on the one hand acidication, hydrolysis (acidifying) is the non-dissolved organic matter in former water is held back and progressively changed into dissolved organic matter for sanitary sewage, improve the biodegradability of sewage, be beneficial to follow-up catalytic oxidation and process; Play on the other hand the effect of adjusting, because the water-quality guideline such as sewage quality, the water yield fluctuate widely with water discharge time, in order to make to process, influent quality is even, the water yield is relatively stable and follow-up maintenance convenient, and described equalizing tank adopts buried skeleton construction; Equalizing tank residence time 8-10 hour.
Described biological contact oxidation pond: the sewage in equalizing tank carries out biochemical treatment in sump pump is promoted to biological contact oxidation pond; Filler adopts current state-of-the art 3 D elastic filler, because this filler has unique structure formation and good material, make it have long service life, do not stop up, oxygenation capacity is good, power consumption is little, start that biofilm is fast, demoulding is easy, resistance to high loading impacts, acidproof withstand voltage, the advantages such as obvious processing effect, its specific surface area is greater than 300m
2/ m
3, contact tank design gas-water ratio is 12-20:1.
Described settling tank: after biological contact oxidation pond, sewage flows into settling tank, contains the microbial film coming off after a large amount of suspended substances and bio-oxidation in sewage, need remove through settling tank; Settling tank is selected swash plate type settling tank; Its water outlet is more even; This settling tank has process lot size not to be limit, and sedimentation effect is good; Adaptable to the water yield and temperature variation; The advantages such as floor plan is compact, and cost is low.
Described sterilization pool: sterilization pool duration of contact is 30 minutes.
Described sludge thickener: sludge pump carries mud in settling tank to sludge sump, sludge sump supernatant liquor returns to equalizing tank and processes.Mud, by outside the regular sucking-off of fecal suction truck factory, also can be used slush pump sucking-off outward transport.
Described blower fan: the fan operation life-span is more than 30000 hours.
Described automatic liquid level operating device: when equalizing tank liquid level is during in low liquid level, Controlling System is sent instruction, and submersible sewage pump is closed, and aerating system, medicine system, sterilisation system are closed; When equalizing tank liquid level is during in high liquid level, Controlling System is sent instruction, and submersible sewage pump, aerating system, medicine system, sterilisation system are started working.Sewage works operation adopts auto-controll operation.Reserved RCI, can realize central monitoring station sewage works is moved and carries out remote monitoring.Central control station can be connected with industrial control system and each sewage works managerial grid system by wireless controller and network adapter, and a plurality of sewage works are carried out to centralized management, comprises sewage works running condition, video pictures.
Bio-carrier, principal feature is as follows: (1), several corrosion resistants with in each polymeric amide of polyalkenes of high-quality, heatproof, ageing-resistant fine quality are material, mixing is with auxiliary agents such as hydrophilic, absorption, heat resistanceheat resistant oxygen, be immersed in for a long time in waste water non-degradable, do not have the material stripping to the toxic effect of microorganism, be better than adopting other such as materials such as polyvinyl chloride yet.(2), adopt special wire drawing, strand hair technique processed, strand is solidly plugged on the axial cord of corrosion resistant, made suspension type 3 D elastic filler monomer, filler can evenly be unfolded and be abound with by stereoscopic and omnibearing in effective area, makes water, gas, microbial film obtain fully contact exchange, microbial film equably implantation on each strand, keep good biological activity and space mutability, and can in operational process, obtain increasing specific surface area, can carry out good metabolism again.(3), high specific surface area, common micro-organisms packing specific area is 90-180 m2/m3, the specific surface area of bio-carrier one side can reach 320 m2/m3, two-sided specific surface area is up to 640m2/m3, owing to thering is high specific surface area, in unit volume, biomass is just high, can reach the short object of hydraulic detention time.(4), the high reactivity of microorganism.At the epontic microbial film of filler, because the collision of filler fluidisation, aeration wash away and make microorganism in highly active increased logarithmic phase, processing efficiency is high.(5), filler is mounted model, it is convenient to change, and reaches work-ing life more than 10 years.(6), the outside growth of filler aerobic bacteria, carry out aerobic decomposing organic matter.
Micro-hole aerator: (1), long service life, easy to maintenance, owing to adopting the ABS plastic of high-quality and diamond spar for making material, there is long service life, and structure is semicircle form structure, aeration is even.(2), aerator is that skeleton is hollow structure, in use buoyancy is little, vibrate little, without special fixing, easy for installation.(3), oxygen transfer efficiency is high, the micro-hole aerator of employing has made up low shortcoming of in use easily aging, the obstruction of general aerator, work-ing life, its bubble is little, structure is that surrounding micropore is evenly given vent to anger, air flow is high, and the pressure-losses is little, and oxygen transfer efficiency is high.
Contact sterilizing: also contain a large amount of unwanted bacterias such as fecal coliform in sanitary sewage disposal water outlet, need carry out disinfection and go out except just entering water body after bacterium.At present, domestic sterilization method has liquid chlorine disinfection, clorox, disinfection by chlorine dioxide, ozonization and uv sterilisation etc.Liquid chlorine and clorox sterilization have been a maturation process, and its sterilisation effect is stable, in water treatment field, widely applies.Ozonization is because working cost is relatively high, and the design does not consider to adopt.Dioxide peroxide not with sewage in ammonia nitrogen react, sterilisation effect is good, production technology is ripe, working cost is lower, this engineering can adopt disinfection by chlorine dioxide, but dioxide peroxide operation need to be assigned personal management.According to local actual, be not suitable for adopting chlorine dioxide generator detoxicating.
Ultraviolet ray, for the sterilization of water, has sterilization quick, and the advantage such as polluted water, is not therefore more and more subject to people's attention in recent years.The disinfection by ultraviolet light of water, is by ultraviolet ray, the irradiation of water to be carried out, and is a photoprocess.When uviolizing is when the microorganism, destroy nucleic acid DNA and the RNA of pathogenic agent, effectively suppress their synthetic proteins and cell fission, final pathogenic agent is reproducible not, can not propagate and finally dead, thereby reach the object of sterilization.But disinfection by ultraviolet light is used luminous lamp tube, if manage badly, can make the fouling of fluorescent tube sleeve outer wall, affect sterilisation effect.
Integration project proprietor is actual, selects more conveniently, can reach the method for sterilisation effect, can save working cost for owner.
The invention has the advantages that: the present invention provides a kind of embedded type domestic sewage disposal system at this; Sewage works operation adopts auto-controll operation.Reserved RCI, can realize central monitoring station sewage works is moved and carries out remote monitoring.Central control station can be connected with industrial control system and each sewage works managerial grid system by wireless controller and network adapter, and a plurality of sewage works are carried out to centralized management.
According to environmental protection policy requirement, meeting under the prerequisite of overall plan, utilize existence conditions as far as possible, according to the principle of " few investment, few working cost, few occupation of land, guarantee up to standardly, do not produce secondary pollution ", determine that sewage treatment process is; Change excrement---grid adjusting-catalytic oxidation-reaction precipitation--sterilization discharge.
Embedded type domestic sewage disposal system body is steel corrosion, and pipeline is UPVC engineering plastics, and filler is second the third copolymerization, and aerator is corundum system, and each connecting parts of device interior is steel, the features such as antiseptic property is strong therefore equipment has, long service life.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention
Fig. 2 is control linkage schematic diagram of the present invention
Fig. 3-5th, the present invention forms apparatus for treating sewage schematic diagram by biological contact oxidation pond, coagulation reaction tank, settling tank, sludge thickener
Wherein: grid equalizing tank 1, biological contact oxidation pond 2, coagulation reaction tank 3, settling tank 4, sludge thickener 5, sterilizing unit 6, blower fan 7, liquid level operating device 8, metering chemical feeding device 9, submersible sewage pump 10.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail, and the technical scheme in the embodiment of the present invention is clearly and completely described, and obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of embedded type domestic sewage disposal system; Sewage works operation adopts auto-controll operation.Reserved RCI, can realize central monitoring station sewage works is moved and carries out remote monitoring.Central control station can be connected with industrial control system and each sewage works managerial grid system by wireless controller and network adapter, and a plurality of sewage works are carried out to centralized management.
Design specifications:
(1) GB50013-2006 < < State Standard of the People's Republic of China Code for design of outdoor water supply engineering > >
(2) < < integrated wastewater discharge standard > > (GB 8978-1996)
(3) < < urban wastewater treatment firm pollutant emission standard > > (GB 18918-2002)
(4) GB700-88 structural carbon steel
(5) basic form and the size of GB/T985-88 covered arc welding welding joint
(6) JB2932 water treating equipment manufacturing technology condition
(7) GB/T 13922.1-92 water treating equipment performance test general provisions
(8) GB/T 13922.1-92 water treating equipment performance test filter plant
(9) < < water supply and drainage design hand second, the 3rd of > >
(10) other respective design standard a nd norms
Scope of design: waste water enters facility, equipment, discharge, control device of each processing unit etc.Comprise:
(1) the general plane topological design for the treatment of station;
(2) waste water treatment process design;
(3) each technique unit facilities design of wastewater treatment;
(4) selection of waste water water treatment station equipment and design;
Process design principle:
(1) every regulation of strict implement environment protection, guarantees that the discharge water quality of sewage reaches country and local relevant emission standard after treatment.
(2), in line with advanced technology, reliable, the simple principle of operational administrative is selected sewage treatment process, and sewage treatment process handiness, advance and unfailing performance are organically combined.Accomplish both protection of the environments, farthest bring into play again project benefit.
(3), according to discharge tail water and practical operation situation after sanitary sewage water quality and quantity, processing, choose reasonable operational path, requires treatment technology advanced, processes effluent quality qualified discharge.Meeting under the prerequisite of qualified discharge requirement, reducing occupation of land, manpower as far as possible, reducing investment outlay.
(4) measure of strengthening noise abatement, avoids secondary pollution.
(6) major equipment production domesticization, adopts current domestic ripe modern technique equipment, reduces construction investment and day-to-day operation expense as far as possible;
(7) when floor plan and engineering design, in conjunction with present situation, it is compact, succinct that layout is made every effort to, and technical process is rationally unobstructed, shorten as far as possible build, the pipeline distance between structures;
(8) construction of wastewater treatment plant considers that operation is stable simple and convenient with maintenance management as far as possible.
(9) the concentrated rear properly disposal of mud, avoids environment to cause secondary pollution.
(10) Vertical Design makes every effort to reduce sewage lifting expense.
Treatment process:
According to environmental protection policy requirement, meeting under the prerequisite of overall plan, utilize existence conditions as far as possible, according to the principle of " few investment, few working cost, few occupation of land, guarantee up to standardly, do not produce secondary pollution ", determine that sewage treatment process is; Change excrement---grid adjusting-catalytic oxidation-reaction precipitation--sterilization discharge.
Technical process explanation:
This sewage disposal device is mainly for the processing of sanitary sewage, its mainly processing means are bio-contact oxidation treatment technologies, and total following several parts form: grid equalizing tank, contact-oxidation pool, reaction settling basin, sludge sump, blower fan, liquid level operating device form.Now be described as follows respectively:
Sewage enters septic tank, its macrobead, can sink solid and floating matter and be blocked, water outlet enters equalizing tank, by sump pump, be promoted to biological contact oxidation pond, through pretreated sewage, by biological contact oxidation pond, carry out aerobe processing again, under oxygenic aeration and biomembranous effect, organic matter degradation is carbonic acid gas and water, water outlet enters after settling tank mud-water separation, processing water is discharged, and mud is promoted to sludge sump by slush pump, after concentrated, mud outward transport, and supernatant liquor returns to equalizing tank and processes.
Equalizing tank: play on the one hand the object of acidication, hydrolysis (acidifying) is the non-dissolved organic matter in former water is held back and progressively changed into dissolved organic matter for sanitary sewage, improves the biodegradability of sewage, is beneficial to follow-up catalytic oxidation and processes.Play on the other hand the effect of adjusting, because the water-quality guideline such as sewage quality, the water yield fluctuate widely with water discharge time, in order to make to process, influent quality is even, the water yield is relatively stable and follow-up maintenance convenient, and equalizing tank adopts buried skeleton construction.Equalizing tank design residence time 8-10 hour, size can be formulated according to field condition.
Biological contact oxidation pond: the sewage in equalizing tank carries out biochemical treatment in sump pump is promoted to biological contact oxidation pond.Filler adopts current state-of-the art 3 D elastic filler, because this filler has unique structure formation and good material, make it have long service life, do not stop up, oxygenation capacity is good, power consumption is little, start that biofilm is fast, demoulding is easy, resistance to high loading impacts, acidproof withstand voltage, the advantages such as obvious processing effect, its specific surface area is greater than 300m2/m3, and contact tank design gas-water ratio is 12-20:1.Aeration adopts aeration head, and air feed does not need other utility appliance, during use, can shut down at any time, can not stop up, corrosion-resistant.
Settling tank: after biological contact oxidation pond, sewage flows into settling tank, contains the microbial film coming off after a large amount of suspended substances and bio-oxidation in sewage, need remove through settling tank.Settling tank is selected swash plate type settling tank; Its water outlet is more even.This settling tank has process lot size not to be limit, and sedimentation effect is good; Adaptable to the water yield and temperature variation; The advantages such as floor plan is compact, and cost is low.
Sterilization pool: sterilization pool duration of contact is 30 minutes.
Sludge thickener: sludge pump carries mud in settling tank to sludge sump, sludge sump supernatant liquor returns to equalizing tank and processes.Mud, by outside the regular sucking-off of fecal suction truck factory, also can be used slush pump sucking-off outward transport.
Blower fan: the fan operation life-span is more than 30000 hours.
Automatic liquid level operating device (Controlling System): when equalizing tank liquid level is during in low liquid level, Controlling System is sent instruction, and submersible sewage pump is closed, and aerating system, medicine system, sterilisation system are closed; When equalizing tank liquid level is during in high liquid level, Controlling System is sent instruction, and submersible sewage pump, aerating system, medicine system, sterilisation system are started working.Sewage works operation adopts auto-controll operation.Reserved RCI, can realize central monitoring station sewage works is moved and carries out remote monitoring.Central control station can be connected with industrial control system and each sewage works managerial grid system by wireless controller and network adapter, and a plurality of sewage works are carried out to centralized management, comprises sewage works running condition, video pictures.
Bio-carrier principal feature is as follows:
(1) with several corrosion resistants in each polymeric amide of polyalkenes of high-quality, heatproof, ageing-resistant fine quality, be material, mixing is with auxiliary agents such as hydrophilic, absorption, heat resistanceheat resistant oxygen, be immersed in for a long time in waste water non-degradable, do not have the material stripping to the toxic effect of microorganism, be better than adopting other such as materials such as polyvinyl chloride yet.
(2) adopt special wire drawing, strand hair technique processed, strand is solidly plugged on the axial cord of corrosion resistant, made suspension type 3 D elastic filler monomer, filler can evenly be unfolded and be abound with by stereoscopic and omnibearing in effective area, makes water, gas, microbial film obtain fully contact exchange, microbial film equably implantation on each strand, keep good biological activity and space mutability, and can in operational process, obtain increasing specific surface area, can carry out good metabolism again.(3) high specific surface area, common micro-organisms packing specific area is 90-180 m2/m3, the specific surface area of bio-carrier one side can reach 320 m2/m3, two-sided specific surface area is up to 640m2/m3, owing to thering is high specific surface area, in unit volume, biomass is just high, can reach the short object of hydraulic detention time.(4) high reactivity of microorganism.At the epontic microbial film of filler, because the collision of filler fluidisation, aeration wash away and make microorganism in highly active increased logarithmic phase, processing efficiency is high.(5) filler is mounted model, and it is convenient to change, and reaches work-ing life more than 10 years.(6) the outside growth of filler aerobic bacteria, carries out aerobic decomposing organic matter.
Micro-hole aerator: (1), long service life, easy to maintenance, owing to adopting the ABS plastic of high-quality and diamond spar for making material, there is long service life, and structure is semicircle form structure, aeration is even.(2), aerator is that skeleton is hollow structure, in use buoyancy is little, vibrate little, without special fixing, easy for installation.(3), oxygen transfer efficiency is high, the micro-hole aerator of employing has made up low shortcoming of in use easily aging, the obstruction of general aerator, work-ing life, its bubble is little, structure is that surrounding micropore is evenly given vent to anger, air flow is high, and the pressure-losses is little, and oxygen transfer efficiency is high.
Contact sterilizing: also contain a large amount of unwanted bacterias such as fecal coliform in sanitary sewage disposal water outlet, need carry out disinfection and go out except just entering water body after bacterium.At present, domestic sterilization method has liquid chlorine disinfection, clorox, disinfection by chlorine dioxide, ozonization and uv sterilisation etc.Liquid chlorine and clorox sterilization have been a maturation process, and its sterilisation effect is stable, in water treatment field, widely applies.Ozonization is because working cost is relatively high, and the design does not consider to adopt.Dioxide peroxide not with sewage in ammonia nitrogen react, sterilisation effect is good, production technology is ripe, working cost is lower, this engineering can adopt disinfection by chlorine dioxide, but dioxide peroxide operation need to be assigned personal management.According to local actual, be not suitable for adopting chlorine dioxide generator detoxicating.
Ultraviolet ray, for the sterilization of water, has sterilization quick, and the advantage such as polluted water, is not therefore more and more subject to people's attention in recent years.The disinfection by ultraviolet light of water, is by ultraviolet ray, the irradiation of water to be carried out, and is a photoprocess.When uviolizing is when the microorganism, destroy nucleic acid DNA and the RNA of pathogenic agent, effectively suppress their synthetic proteins and cell fission, final pathogenic agent is reproducible not, can not propagate and finally dead, thereby reach the object of sterilization.But disinfection by ultraviolet light is used luminous lamp tube, if manage badly, can make the fouling of fluorescent tube sleeve outer wall, affect sterilisation effect.
The explanation of buried sewage treatment equipment structured material
1, apparatus body: apparatus body adopts steel design anticorrosion.
2, pipeline: adopt UPVC engineering plastics, there is the features such as corrosion-resistant, anti-aging, long service life.
3, water pump: select the anti-obstruction of WQD series, tearing mode submersible sewage pump, there is the features such as quality is light, long service life.
4, blower fan: blower fan is placed in Ventilator Room, because this blower fan is equipped with sourdine and damping device, its noise is lower than 65dB.
5, automatic control
(1) the opening, stop of automatically controlled water pump, when super police circles' water level, arranges overflow vertical pipe, lower than starting liquid level pump trip.
(2) blower fan moves continuously, when sewage stops, and the operation of blower fan automatic intermittent.
6, filler: packing type shape is columnar structure, and specific surface area is large, easily installs.In operational process, the biophase that inside and outside formation is different, can adapt to different bacterial growths.Reach work-ing life more than 10 years.Packing specific area is: 520m2/m3.
7, aerating system: aerating pore aerator, this aerator material is corundum, long service life; One-piece construction adopts circular configuration, and suffered warp tension ratio plate-type aerator greatly reduces; Adopt guide's tank structure, aeration assembly is without buoyancy simultaneously; Perforate is even, and quantity is many; Each aerator adopts ABS to connect fastening piece, and interface is difficult for gas leakage, convenient disassembly.
Embedded type domestic sewage disposal system body is steel corrosion, and pipeline is UPVC engineering plastics, and filler is second the third copolymerization, and aerator is corundum system, and each connecting parts of device interior is steel, the features such as antiseptic property is strong therefore equipment has, long service life.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (2)
1. an embedded type domestic sewage disposal system, is characterized in that: comprise grid equalizing tank (1), biological contact oxidation pond (2), coagulation reaction tank (3), settling tank (4), sludge thickener (5), sterilizing unit (6), blower fan (7), liquid level operating device (8); By biological contact oxidation pond (2), coagulation reaction tank (3), settling tank (4), sludge thickener (5), form apparatus for treating sewage;
Septic tank is connected logical with grid equalizing tank (1), grid equalizing tank (1) is connected logical with biological contact oxidation pond (2), biological contact oxidation pond (2) is connected logical with coagulation reaction tank (3), coagulation reaction tank (3) is connected logical with settling tank (4), settling tank (4) is connected logical with sludge thickener (5), sterilizing unit (6) is connected logical with settling tank (4) rising pipe, metering chemical feeding device (9) is connected with coagulation reaction tank (3);
Described liquid level operating device (8) is connected with sterilizing unit (6), metering chemical feeding device (9) and submersible sewage pump (10) and controls its operation.
2. one way of life sewage water treatment method, is characterized in that: flow process is as follows:
Sewage enters septic tank, its macrobead, can sink solid and floating matter and be blocked, water outlet enters grid equalizing tank, by sump pump, be promoted to biological contact oxidation pond, through pretreated sewage, by biological contact oxidation pond, carry out aerobe processing again, under oxygenic aeration and biomembranous effect, organic matter degradation is carbonic acid gas and water, water outlet enters after settling tank mud-water separation, processing water is discharged, and mud is promoted to sludge sump by slush pump, after concentrated, mud outward transport, and supernatant liquor returns to equalizing tank and processes;
Described equalizing tank: the object that plays on the one hand acidication, hydrolysis (acidifying) is the non-dissolved organic matter in former water is held back and progressively changed into dissolved organic matter for sanitary sewage, improve the biodegradability of sewage, be beneficial to follow-up catalytic oxidation and process; Play on the other hand the effect of adjusting, because the water-quality guideline such as sewage quality, the water yield fluctuate widely with water discharge time, in order to make to process, influent quality is even, the water yield is relatively stable and follow-up maintenance convenient, and described equalizing tank adopts buried skeleton construction; Equalizing tank residence time 8-10 hour;
Described biological contact oxidation pond: the sewage in equalizing tank carries out biochemical treatment in sump pump is promoted to biological contact oxidation pond; Filler adopts current state-of-the art 3 D elastic filler, because this filler has unique structure formation and good material, make it have long service life, do not stop up, oxygenation capacity is good, power consumption is little, start that biofilm is fast, demoulding is easy, resistance to high loading impacts, acidproof withstand voltage, the advantages such as obvious processing effect, its specific surface area is greater than 300m
2/ m
3, contact tank design gas-water ratio is 12-20:1;
Described settling tank: after biological contact oxidation pond, sewage flows into settling tank, contains the microbial film coming off after a large amount of suspended substances and bio-oxidation in sewage, need remove through settling tank; Settling tank is selected swash plate type settling tank; Its water outlet is more even; This settling tank has process lot size not to be limit, and sedimentation effect is good; Adaptable to the water yield and temperature variation; The advantages such as floor plan is compact, and cost is low;
Described sterilization pool: sterilization pool duration of contact is 30 minutes;
Described sludge thickener: sludge pump carries mud in settling tank to sludge sump, sludge sump supernatant liquor returns to equalizing tank and processes;
Mud, by outside the regular sucking-off of fecal suction truck factory, also can be used slush pump sucking-off outward transport;
Described blower fan: the fan operation life-span is more than 30000 hours;
Described automatic liquid level operating device: when equalizing tank liquid level is during in low liquid level, Controlling System is sent instruction, and submersible sewage pump is closed, and aerating system, medicine system, sterilisation system are closed; When equalizing tank liquid level is during in high liquid level, Controlling System is sent instruction, and submersible sewage pump, aerating system, medicine system, sterilisation system are started working.
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| CN104370417A (en) * | 2014-11-05 | 2015-02-25 | 乐山市净源水处理设备有限公司 | Intelligent biological oxidation purification treatment and control system for hospital sewage |
| CN106242192A (en) * | 2016-08-28 | 2016-12-21 | 宁波淳源环保科技有限公司 | One way of life Sewage zero discharge system |
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| CN103979734B (en) | 2016-04-06 |
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