CN204727726U - A kind of pesticide wastewater biological treatment combination unit - Google Patents
A kind of pesticide wastewater biological treatment combination unit Download PDFInfo
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- CN204727726U CN204727726U CN201520342475.9U CN201520342475U CN204727726U CN 204727726 U CN204727726 U CN 204727726U CN 201520342475 U CN201520342475 U CN 201520342475U CN 204727726 U CN204727726 U CN 204727726U
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Abstract
The utility model discloses a kind of pesticide wastewater biological treatment combination unit, comprise the equalizing tank be communicated with successively, iron-carbon micro-electrolysis device, Buffer Pool, film circulation anaerobic reactor, film circulation aerobic reactor and MBR settling tank, described a kind of pesticide wastewater biological treatment combination unit also comprises sludge thickener, described iron-carbon micro-electrolysis device is provided with the shore pipe I be communicated with described sludge thickener, described MBR settling tank is provided with the shore pipe II be communicated with described sludge thickener, described MBR settling tank is also provided with the reflux sludge tube be communicated with described film circulation aerobic reactor.The utility model is when steady running, the clearance of waste water COD reaches as high as more than 99%, have employed the high film circulation anaerobic reactor of mass-transfer efficiency and film circulation aerobic reactor, and be all provided with internal recycle, completely hybrid in reactor, anti impulsion load is strong, even if larger fluctuation occurs the influent quality water yield, reactor still can steady running.
Description
Technical field
The utility model relates to a kind of wastewater treatment equipment, specifically a kind of pesticide wastewater biological treatment combination unit.
Background technology
Pesticide wastewater has features: 1. Pollutant levels are higher, and COD (chemical oxygen demand (COD)) can reach often liter of tens thousand of milligram; 2. toxicity is large, except containing except agricultural chemicals and intermediate in waste water, is also difficult to the material of degrading containing the toxic substances such as phenol, arsenic, mercury and many biologies; 3. foul smelling, to the respiratory tract of people and mucous membrane irritant; 4. water quality, water yield instability.Therefore, agricultural chemicals waste water is very serious to the pollution of environment.The object of agricultural chemicals waste water process reduces Pollutant levels in pesticide wastewater, improves recovery utilization rate, make every effort to reach innoxious.Along with country's improving constantly environmental emission standard and requirement, effective process can be carried out to pesticide wastewater and become the important factor that can pesticide producing enterprise shape up.
COD mass concentration is adjusted to 7000 ~ 9000mg/L through pre-treatment by pesticide wastewater.Also do not extract microbiotic completely containing a certain amount of in waste water, this has certain toxic side effect to mud.Pesticide wastewater is a kind of special trade effluent, has both been different from the balanced in nutrition of sanitary sewage; Also the toxicity being different from commonly industrial wastewater is single; Its characteristic not only shows and makes the toxicity of waste water complicated because of raw materials for production and product diversity, more shows the micro-high efficiency microorganism of active sludge to toxic action.A very thorny difficult problem is remained to the process of pesticide wastewater.
At present, the treatment process of domestic and international pesticide wastewater has:
1) ozone oxidation-Biochemical method pesticide producing organic waste water
Technique is by ozone oxidation and biologic treating technique coupling process pesticide producing organic waste water.Waste water enters one-level ozone Oxidation Treatment after pretreatment, thus removes macromolecule contaminant and part COD.Laggard people's comprehensive wastewater equalizing tank, utilize A2/O technique to improve the biodegradable of waste water, then in second pond, carry out mud-water separation, make mud be back to anaerobic pond oxygen compatibility pool and Aerobic Pond respectively, remaining mud then enters people's waste sludge concentration basin.This technique can realize the process of pesticide producing organic waste water, but energy consumption is high, and plant efficiency is low, and floor space is large.
2) fenton oxidation+type sequence intermittent aerobic activated sludge process process pesticide producing organic waste water
Pesticide wastewater enters type sequence intermittent aerobic activated sludge pond and carries out a biological disposal upon after the pre-treatment of fenton oxidation pond, the method process pesticide producing organic waste water has good feasibility, corresponding emission standard can be reached, and this method treatment effect is stablized, operational management is flexible, flexible can be carried out according to the height of entering organic matter of water concentration to aeration time, be applicable to very much the high concentrated organic wastewater of water quality treatment water yield instability.
3) acidication-bio-contact oxidation industrial treatment pesticide producing organic waste water
The main processing structures of this technique and equipment have equalizing tank, hydrolysis acidification pool, contact-oxidation pool, settling tank, sludge thickener.The acidication unit of this technique can effectively be degraded partial organic substances, improves the biodegradability of sewage simultaneously, and effectively reduces Colority of Sewage Water.Biological contact oxidation chemical industry organic loading is high, and anti impulsion load ability is strong, stable effluent quality.
4) UASB-A/O art breading pesticide producing organic waste water
Research shows that UASB-A/O art breading pesticide producing organic waste water has stable, good effect.UASB treatment technology is considered to the wastewater processing technology of low-consumption high-efficiency, and many high-concentration and low-concentration organic waste water biodegradabilities are relatively good, are suitable for the renewable energy resources recycled wherein, in recent years quite by the concern of environment protection expert.A/O technique can remove the organic pollutant in waste water further, technique has had successful case history, and effectively can reduce investment and the working cost of Environment control, meets the requirement of China's wastewater processing technology, but technique integral load is general, and floor space is large.
Utility model content
According to the technical problem of above-mentioned proposition, and provide a kind of pesticide wastewater biological treatment combination unit.The technique means that the utility model adopts is as follows:
A kind of pesticide wastewater biological treatment combination unit, comprise the equalizing tank be communicated with successively, iron-carbon micro-electrolysis device, Buffer Pool, film circulation anaerobic reactor, film circulation aerobic reactor and MBR settling tank, described a kind of pesticide wastewater biological treatment combination unit also comprises sludge thickener, described iron-carbon micro-electrolysis device is provided with the shore pipe I be communicated with described sludge thickener, described MBR settling tank is provided with the shore pipe II be communicated with described sludge thickener, described MBR settling tank is also provided with the reflux sludge tube be communicated with described film circulation aerobic reactor.
Described film circulation anaerobic reactor comprises the air chamber being positioned at described film circulation anaerobic reactor top, is positioned at the gas-solid-liquid disengaging zone in the middle part of described film circulation anaerobic reactor and the bio-reaction zone I being positioned at described film circulation anaerobic reactor lower part;
Described air chamber top is connected with the vapor pipe of discharging for biogas, and described vapor pipe passes from described reactor head;
Top, described gas-solid-liquid disengaging zone is connected with the rising pipe I be connected with described film circulation aerobic reactor, and described gas-solid-liquid disengaging zone comprises Gas-solid-liquid separater and settling region, and described Gas-solid-liquid separater is communicated with described air chamber;
Described bio-reaction zone I comprises the biologic packing material district on top, described bio-reaction zone I and is positioned at the water distribution system of bottom, described biologic packing material district, and described water distribution system is provided with the water inlet pipe I be communicated with described Buffer Pool;
Described film circulation anaerobic reactor also comprises return-flow system, described return-flow system comprises return line and reflux pump, described biologic packing material district upper portion side wall is connected with described return line feed-water end, described water distribution system is connected with described return line water side, described reflux pump is between described return line feed-water end and described return line water side;
Described film circulation anaerobic reactor bottom is connected with shore pipe III.
Described film circulation anaerobic reactor outside is provided with thermal insulation layer.
Described film circulation aerobic reactor comprises negative area and is arranged on the bio-reaction zone II of lower end, described negative area;
Described negative area upper portion side wall is connected with water inlet pipe II, and described water inlet pipe II is connected with water inlet control valve I, inlet water lifting pumps, water inlet control valve II and feed water flow gauge in turn from feed-water end to water side, mixing tank is provided with in described negative area, described mixing tank is fixedly connected with the inwall of described negative area in position, axis, described negative area by bracing frame I, described mixing tank top is provided with inlet pipe, the other end of described inlet pipe stretches out outside described negative area, described mixing tank lower end is provided with ejector, described mixing tank upper portion side wall is connected with return water pipe water side, described return water pipe feed-water end is connected with described negative area lower sides, described return water pipe is connected with water-returning control valve I in turn from feed-water end to water side, recycle pump, water-returning control valve II and return flow meter, in the middle part of described negative area, sidewall is provided with the rising pipe II for connecting described MBR settling tank, guide shell is provided with below described ejector, described guide shell is fixedly connected with the sidewall of described bio-reaction zone II in position, axis, described bio-reaction zone II by bracing frame II, between described guide shell sidewall and described bio-reaction zone II sidewall, biologic packing material is housed, described bio-reaction zone II lower sides is provided with shore pipe IV.
Described inlet pipe is provided with intake valve and the inlet air flow gauge between described intake valve and described mixing tank.
Described rising pipe II is provided with flowing water Valve.
Described shore pipe IV is provided with mud valve.
The utility model has the following advantages:
1. the utility model is in steady operation period, pretreatment system (equalizing tank, iron-carbon micro-electrolysis device and Buffer Pool) to the clearance of COD 30%, film efficient anaerobe treatment system allows the variation range of inlet COD concentration to be 7000 to 9000mg/l, water inlet organic loading is 11.2 to 14.14kgCOD/ (m3.d), hydraulic detention time is 16 to 24 hours, now, the average removal rate of film anaerobic biological reactor to COD reaches 79.2%, when film aerobe reactor volumetric loading is between 8 to 12kgCOD/ (m3d), to the clearance 7% to 10% of waste water COD, after the process of MBR settling tank, the COD content of final outflow water is at below 50 to 60mg/L, and it is good to have passed through membrane sepn effluent quality, directly penetration depth treatment system can carry out Treated sewage reusing.
2. during the utility model steady running, the clearance of waste water COD reaches as high as more than 99%, and effluent quality can reach comprehensive discharge primary standard.
3. adopt the utility model, film circulation anaerobic reactor often removes 1kgCOD can produce 0.28m
3methane gas, process one ton of waste water and can produce about 1.5m
3methane gas, and methane gas just can replace raw coal as fuel use, according to waiting heat to calculate, the profit often processing 1 ton of waste water can reach about 2 yuan.
4. the utility model have employed the high film circulation anaerobic reactor of mass-transfer efficiency and film circulation aerobic reactor, and be all provided with internal recycle, be completely hybrid in reactor, anti impulsion load is strong, even if larger fluctuation occurs the influent quality water yield, reactor still can steady running.Tripping device of the present utility model adopts MBR reactor, and achieve the high efficiency separation of muddy water, relative to traditional secondary sedimentation basins, efficiency is higher, and volume is less.
5. the utility model is more efficient, and integral load is higher than traditional " acidication+aerobic aeration pond+second pond " process efficiency more than 5 times, and floor space and the capital construction cost of device are low.
The utility model extensively can be promoted in fields such as wastewater treatment equipments for the foregoing reasons.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is film circulation anaerobic reactor of the present utility model.
Fig. 3 is film circulation aerobic reactor of the present utility model.
Embodiment
As shown in Figure 1-Figure 3, a kind of pesticide wastewater biological treatment combination unit, comprise the equalizing tank be communicated with successively, iron-carbon micro-electrolysis device, Buffer Pool, film circulation anaerobic reactor, film circulation aerobic reactor and MBR settling tank, described a kind of pesticide wastewater biological treatment combination unit also comprises sludge thickener, described iron-carbon micro-electrolysis device is provided with the shore pipe I be communicated with described sludge thickener, described MBR settling tank is provided with the shore pipe II be communicated with described sludge thickener, described MBR settling tank is also provided with the reflux sludge tube be communicated with described film circulation aerobic reactor.
Described film circulation anaerobic reactor comprises the air chamber 1 being positioned at described film circulation anaerobic reactor top, is positioned at the gas-solid-liquid disengaging zone in the middle part of described film circulation anaerobic reactor and the bio-reaction zone I 2 being positioned at described film circulation anaerobic reactor lower part;
Described air chamber top is connected with the vapor pipe 3 of discharging for biogas, and described vapor pipe passes from described reactor head;
Top, described gas-solid-liquid disengaging zone is connected with the rising pipe I 4 be connected with described film circulation aerobic reactor, and described gas-solid-liquid disengaging zone comprises Gas-solid-liquid separater 5 and settling region 6, and described Gas-solid-liquid separater 5 is communicated with described air chamber 1;
Described bio-reaction zone I 2 comprises the biologic packing material district 7 on top, described bio-reaction zone I 2 and is positioned at the water distribution system 8 of bottom, described biologic packing material district 7, and described water distribution system 8 is provided with the water inlet pipe I 9 be communicated with described Buffer Pool;
Described film circulation anaerobic reactor also comprises return-flow system, described return-flow system comprises return line 10 and reflux pump 11, described biologic packing material district 7 upper portion side wall is connected with described return line 10 feed-water end, described water distribution system 8 is connected with described return line 10 water side, described reflux pump 11 is between described return line 10 feed-water end and described return line 10 water side;
Described film circulation anaerobic reactor bottom is connected with shore pipe III 12.
Described film circulation anaerobic reactor outside is provided with thermal insulation layer 13.
Described film circulation aerobic reactor comprises negative area 14 and is arranged on the bio-reaction zone II 15 of lower end, described negative area 14;
Described negative area 14 upper portion side wall is connected with water inlet pipe II 16, and described water inlet pipe II 16 is connected with water inlet control valve I 17, inlet water lifting pumps 18, water inlet control valve II 19 and feed water flow gauge 20 in turn from feed-water end to water side, mixing tank 21 is provided with in described negative area 14, described mixing tank 21 is fixedly connected with the inwall of described negative area 14 in position, axis, described negative area 14 by bracing frame I, described mixing tank 21 top is provided with inlet pipe 22, the other end of described inlet pipe 22 stretches out outside described negative area 14, described mixing tank 21 lower end is provided with ejector 23, described mixing tank 21 upper portion side wall is connected with return water pipe 24 water side, described return water pipe 24 feed-water end is connected with described negative area 14 lower sides, described return water pipe 24 is connected with water-returning control valve I 25 in turn from feed-water end to water side, recycle pump 26, water-returning control valve II 27 and return flow meter 28, in the middle part of described negative area 14, sidewall is provided with the rising pipe II 29 for connecting described MBR settling tank, guide shell 30 is provided with below described ejector 23, described guide shell 30 is fixedly connected with the sidewall of described bio-reaction zone II 15 in position, axis, described bio-reaction zone II 15 by bracing frame II, between described guide shell 30 sidewall and described bio-reaction zone II 15 sidewall, biologic packing material is housed, described bio-reaction zone II 15 lower sides is provided with shore pipe IV 31.
Described inlet pipe 22 is provided with intake valve 32 and the inlet air flow gauge 33 between described intake valve 32 and described mixing tank 21.
Described rising pipe II 29 is provided with flowing water Valve 34.
Described shore pipe IV 31 is provided with mud valve 35.
Just the utility model how is used to be described further below:
(1) pretreatment system (equalizing tank, iron-carbon micro-electrolysis device and Buffer Pool)
Pesticide wastewater through equalizing tank, iron-carbon micro-electrolysis device, after Buffer Pool, remove the suspended substance in water and non-dissolving class material, COD clearance is 30 to 50%, and the overall hydraulic detention time of pretreatment system is 2 to 4 hours, and adjust ph to 7 is to 8;
(2) film anaerobic biological reactor
Pretreated waste water carries out mixing from water distribution system 8 inflow with the mud in biologic packing material district 7 and contacts, organism in mud in microbial decomposition waste water, make it to be converted into biogas, biogas is constantly released with micro-bubble form, micro-bubble constantly merges in uphill process, form larger bubble gradually, top, biologic packing material district 7 muddy water under biogas stirs rises to Gas-solid-liquid separater 5 together, biogas runs into deflecting plate and is folded to surrounding, air chamber 1 is entered through water layer, the biogas vapor pipe 3 concentrating on air chamber 1 is derived, solid-liquid mixed solution enters settling region 6 through reflection, mud generation flocculating settling in waste water, the mud be precipitated on skew wall slides back in biologic packing material district 7 along skew wall, make a large amount of mud of accumulation in biologic packing material district 7, waste water after being separated with mud enters into film aerobe reactor through rising pipe I 4, the hydraulic detention time of film anaerobic biological reactor is designed to 16 to 24 hours,
(3) film aerobe reactor
Waste water after a upper device process enter into negative area 14 and and recirculated water, air enters mixing tank 21 together, through jet to guide shell 30, under suction function, waste water, air fully mixes in mixer 21 with recirculated water, thus High Speed Turbulent shear zone is formed below ejector 23, air is produced a large amount of tiny bubble by secondary cut, oxygen is fully dissolved in mixture, bio-reaction zone II 15 is entered through guide shell 30, efficient biochemical reaction is carried out under the effect of biologic packing material, and formation circulates, the removal effect of water pollutant is reached best, the hydraulic detention time of film aerobe reactor is 8 to 12 hours,
(4) MBR settling tank
The water outlet of film circulation aerobic reactor enters MBR settling tank, further removal COD, in MBR settling tank, utilize the dissolved oxygen in waste water to continue reaction, further removal COD, and realize the high efficiency separation of muddy water, film filtration effluent is arranged outward, partial sludge reclaims, 2 to the 4 hours mud-water separation time of MBR settling tank, the effluent quality obtained is good, limpid, and suspension content is extremely low, directly penetration depth treatment system can carry out reuse, some residual mud enters sludge thickener concentrated row or export trade outward as granule sludge kind mud.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and utility model design thereof and replace or change, all should be encompassed within protection domain of the present utility model.
Claims (7)
1. a pesticide wastewater biological treatment combination unit, it is characterized in that: comprise the equalizing tank be communicated with successively, iron-carbon micro-electrolysis device, Buffer Pool, film circulation anaerobic reactor, film circulation aerobic reactor and MBR settling tank, described a kind of pesticide wastewater biological treatment combination unit also comprises sludge thickener, described iron-carbon micro-electrolysis device is provided with the shore pipe I be communicated with described sludge thickener, described MBR settling tank is provided with the shore pipe II be communicated with described sludge thickener, described MBR settling tank is also provided with the reflux sludge tube be communicated with described film circulation aerobic reactor.
2. a kind of pesticide wastewater biological treatment combination unit according to claim 1, it is characterized in that: described film circulation anaerobic reactor comprises the air chamber being positioned at described film circulation anaerobic reactor top, be positioned at the gas-solid-liquid disengaging zone in the middle part of described film circulation anaerobic reactor and the bio-reaction zone I being positioned at described film circulation anaerobic reactor lower part;
Described air chamber top is connected with the vapor pipe of discharging for biogas, and described vapor pipe passes from described reactor head;
Top, described gas-solid-liquid disengaging zone is connected with the rising pipe I be connected with described film circulation aerobic reactor, and described gas-solid-liquid disengaging zone comprises Gas-solid-liquid separater and settling region, and described Gas-solid-liquid separater is communicated with described air chamber;
Described bio-reaction zone I comprises the biologic packing material district on top, described bio-reaction zone I and is positioned at the water distribution system of bottom, described biologic packing material district, and described water distribution system is provided with the water inlet pipe I be communicated with described Buffer Pool;
Described film circulation anaerobic reactor also comprises return-flow system, described return-flow system comprises return line and reflux pump, described biologic packing material district upper portion side wall is connected with described return line feed-water end, described water distribution system is connected with described return line water side, described reflux pump is between described return line feed-water end and described return line water side;
Described film circulation anaerobic reactor bottom is connected with shore pipe III.
3. a kind of pesticide wastewater biological treatment combination unit according to claim 2, is characterized in that: described film circulation anaerobic reactor outside is provided with thermal insulation layer.
4. a kind of pesticide wastewater biological treatment combination unit according to claim 1, is characterized in that: described film circulation aerobic reactor comprises negative area and is arranged on the bio-reaction zone II of lower end, described negative area;
Described negative area upper portion side wall is connected with water inlet pipe II, and described water inlet pipe II is connected with water inlet control valve I, inlet water lifting pumps, water inlet control valve II and feed water flow gauge in turn from feed-water end to water side, mixing tank is provided with in described negative area, described mixing tank is fixedly connected with the inwall of described negative area in position, axis, described negative area by bracing frame I, described mixing tank top is provided with inlet pipe, the other end of described inlet pipe stretches out outside described negative area, described mixing tank lower end is provided with ejector, described mixing tank upper portion side wall is connected with return water pipe water side, described return water pipe feed-water end is connected with described negative area lower sides, described return water pipe is connected with water-returning control valve I in turn from feed-water end to water side, recycle pump, water-returning control valve II and return flow meter, in the middle part of described negative area, sidewall is provided with the rising pipe II for connecting described MBR settling tank, guide shell is provided with below described ejector, described guide shell is fixedly connected with the sidewall of described bio-reaction zone II in position, axis, described bio-reaction zone II by bracing frame II, between described guide shell sidewall and described bio-reaction zone II sidewall, biologic packing material is housed, described bio-reaction zone II lower sides is provided with shore pipe IV.
5. a kind of pesticide wastewater biological treatment combination unit according to claim 4, is characterized in that: described inlet pipe is provided with intake valve and the inlet air flow gauge between described intake valve and described mixing tank.
6. a kind of pesticide wastewater biological treatment combination unit according to claim 4, is characterized in that: described rising pipe II is provided with flowing water Valve.
7. a kind of pesticide wastewater biological treatment combination unit according to claim 4, is characterized in that: described shore pipe IV is provided with mud valve.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107935323A (en) * | 2017-12-25 | 2018-04-20 | 广州原点建设工程有限公司 | A kind of processing system and method with excrement medical waste water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107935323A (en) * | 2017-12-25 | 2018-04-20 | 广州原点建设工程有限公司 | A kind of processing system and method with excrement medical waste water |
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