CN204752469U - Processing apparatus of decentralized high ammonia -nitrogen concentration sewage - Google Patents
Processing apparatus of decentralized high ammonia -nitrogen concentration sewage Download PDFInfo
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- CN204752469U CN204752469U CN201520324213.XU CN201520324213U CN204752469U CN 204752469 U CN204752469 U CN 204752469U CN 201520324213 U CN201520324213 U CN 201520324213U CN 204752469 U CN204752469 U CN 204752469U
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- reaction chamber
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Abstract
The utility model discloses a processing apparatus of decentralized high ammonia -nitrogen concentration sewage is applicable to the sewage treatment of highway service area, also is applicable to simultaneously like the processing and the nitrogen and phosphorus removal of dispersion pollution point sources such as tourist industry, beasts and birds aquaculture, including good oxygen pond of equalizing basin, anaerobism reaction tank, oxygen deficiency reaction tank, aeration and the constructed wetland who establishes ties in proper order. The utility model discloses sewage treatment plant, the undulant coefficient of the adaptation water yield is big, water conservancy impact load is big, overcome the not enough denitrification of CN simultaneously and nitrify the problem that basicity is not enough, high -efficient dephosphorization denitrogenation, the messenger system goes out the stable one -level A mark that reaches of water, because the low CN of highway service area compares, take to segment to intake, rivers appear to push away and flow the compound flow state that combines together with NULL stream in the system, the volume utilization ratio has been improved, promote sewage and nitrobacteria, denitrifying bacteria's abundant contact, increase substantially sewage treatment efficiency.
Description
Technical field
The present invention relates to a kind of waste disposal plant, particularly relate to a kind for the treatment of unit of decentralized high-ammonia-nitrogen sewage, be applicable to the sewage disposal of Expressway Service, be also applicable to the process as the dispersion such as tourism, livestock and poultry breeding industry point source of pollution and denitrogenation dephosphorizing simultaneously.
Background technology
By 2014 the end of the year China's Mainland motorway the total kilometrage that is open to traffic reach 11.195 ten thousand kilometers, China Expressway Service general all with 50 kilometers for standard pitch is arranged, the method arranged in pairs is generally taked when carrying out Expressway Service planning, namely 1 place's service area is respectively established in road both sides, possesses Expressway Service quantity 2000 to left and right to the whole nation in 2015.Sewage in expressway service is generally made up of fecal sewage, food and drink bath water, wastewater from car washer and service station's Cleaning Wastewater, sewage scale is compared with little, ammonia nitrogen and phosphorus concentration is high, containing lipid pollutent, the water yield is unstable, coefficient of fluctuation is large, water impact load is large, and difficult treatment is larger.The most distant and municipal wastewater pipe network in the city that cannot be directly brought into away from city of service area, sewage discharges on the spot without dealing carefully with, then can have a negative impact to surrounding environment, even cause dispute to affect the normal operation of service area, therefore needing, independent highly effective dephosphorizing denitrification decentralized type sewage treatment system is set and processes.
From case history actual at present, sewage in expressway service plays restraining effect to nitrated, adopts common A
2/ O treatment process, because actual sewage amount is little compared with designing treatment ability, sewage is at A
2the actual hydraulic detention time of/O biochemistry pool reaches 72h, but except COD Absorbable organic halogens reaches except emission standard in water outlet, ammonia nitrogen, total nitrogen also have larger gap compared with emission standard, are difficult to the requirement reaching emission standard.The total nitrogen of Expressway Service waste water is higher, C/N is not enough, denitrification requirement can not be met, basic denitrification dephosphorization technique is for guaranteeing that denitrification denitrogenation needs additional carbon, guarantee that nitrification effect must maintain certain basicity and also need separately to add liquid caustic soda, and the change of the service area water yield greatly, and therefore traditional denitrification dephosphorization technique is as A
2/ O, Bardenpho, inversion A
2/ O, oxidation ditch etc., be not suitable for the Expressway Service waste water of high ammonia nitrogen.
Summary of the invention
Goal of the invention: the object of the invention is for the deficiencies in the prior art, provides a kind for the treatment of unit of decentralized high-ammonia-nitrogen sewage for taking sewage in expressway service as representative.
Technical scheme: the treatment unit of decentralized high-ammonia-nitrogen sewage of the present invention, comprise connect successively equalizing tank, anaerobic reation pool, hypoxia response pond, aeration Aerobic Pond and artificial swamp;
Described equalizing tank is connected with anaerobic reation pool by water pump and water pipe; The inner reaction chamber being divided into several series connection by dividing plate of described anaerobic reation pool, flow deflector is equipped with in each reaction chamber, flow deflector is inserted by water surface upper end, the bottom of flow deflector to the bending of current inflow direction and with reaction tank bottom leave water stream channel, make each reaction chamber all form relatively independent upper downflow system sludge bed system; Current in previous reaction chamber are crossed dividing plate enter in next reaction chamber by being turned over stream, and overall current form vertical current labyrinth;
The inner reaction chamber being divided into several series connection by dividing plate in described hypoxia response pond, flow deflector is equipped with in each reaction chamber, flow deflector is inserted by water surface upper end, leaves water stream channel bottom flow deflector and reaction tank, and each reaction chamber all forms relatively independent upper downflow system sludge bed system; Described anaerobic reation pool water outlet is divided into two pipelines, and a pipeline is connected with first reaction chamber in hypoxia response pond, and another pipeline is connected with the subsequent reactions room in hypoxia response pond; Current in the previous reaction chamber in described hypoxia response pond are crossed dividing plate enter in next reaction chamber by being turned over stream, and last reaction chamber is provided with mixed-liquor return pipeline and is connected with the first reaction chamber; Overall current form front metacyclic vertical current labyrinth;
Described hypoxia response pond water outlet is connected with aeration Aerobic Pond; End in described aeration aerobic reaction pond is provided with three phase separation precipitation water exit end, aerobic reactor zone and three phase separation precipitate and arrange active clapboard between water exit end and intercept aeration disturbance, stirring at low speed device is joined at the rear portion of dividing plate, pond body end arranges triphase separator, bottom, settling region and ground are oblique angle, and precipitating sludge flow in bio-reaction zone from sliding back to; Be provided with mixed-liquor return pipeline in aeration Aerobic Pond to be connected with last reaction chamber in described hypoxia response pond; The oblique angle place of settling region is provided with sludge return pipe and is connected with first reaction chamber of described anaerobic reation pool;
Described aeration Aerobic Pond water outlet is connected with artificial swamp, and the water outlet of artificial swamp is connected with natural stream networks.
Preferably, in described anaerobic reation pool, the bending angle of flow deflector is 130 degree; The spacing of described flow deflector and next dividing plate is 1/3 of spacing between adjacent separator, and like this, the water-carrying section of current in bending place reduces, flow velocity increases, turbulent water aggravates, and the mud in mixed solution is turned over rapidly and influxs next reaction chamber, is unlikelyly deposited at the bottom of pond.
Preferably, in described anaerobic reation pool, in each reaction chamber, be provided with evacuation port, facilitate emptying.
Preferably, in described hypoxia response pond, the spacing of described flow deflector and next dividing plate is 1/2 of adjacent separator spacing, by the middle part at reaction chamber, flow deflector is set, current reduce at the water-carrying section of air deflector, and flow velocity increases, and turbulent water aggravates, mud in mixed solution is turned over rapidly and influxs next reaction chamber, to be unlikelyly deposited at the bottom of pond.
Preferably, in described hypoxia response pond, in each reaction chamber, be provided with evacuation port, facilitate emptying.
Preferably, in described aeration aerobic reaction pond, bottom, settling region and ground are 50 ~ 70 ° of oblique angles, while this oblique angle makes settling region mud certainly to slide at the bottom of pond, reduce the floor space of precipitating sludge, are convenient to sludge reflux.
Beneficial effect: waste disposal plant of the present invention, adaptation water yield coefficient of fluctuation is large, water impact load is large, overcome the problem of the not enough denitrification of C/N and nitrated basicity deficiency simultaneously, highly effective dephosphorizing denitrification, the system stable water outlet of making reaches one-level A mark, due to the low C/N ratio of Expressway Service, take segmental influent, in system, current present the compound fluidised form that plug-flow combines with complete mixed flow, improve capacity utilization, promote sewage and nitrobacteria, fully the contacting of denitrifying bacterium, increase substantially sewage treating efficiency.
Accompanying drawing explanation
Fig. 1 is apparatus of the present invention overall structure schematic diagram;
Fig. 2 is anaerobic reation pool structural representation of the present invention;
Fig. 3 is hypoxia response pool structure schematic diagram of the present invention;
Fig. 4 is aerobic aeration reaction tank structural representation of the present invention.
Embodiment
Below by accompanying drawing, technical solution of the present invention is described in detail, but protection scope of the present invention is not limited to described embodiment.
Embodiment 1: below for the sewage disposal of celestial being mountain service area, describes the using method of apparatus of the present invention in detail.
Celestial being mountain service area is positioned at Shanghai-Nanjing Expressway Zhenjiang section, apart from about 49 kilometers, Nanjing, is a multi-functional comprehensive service area be integrated such as drink, shopping, lodging, oiling, Automobile Service of dining together from a common dish.Service area gross floors area reaches 1.3 ten thousand square metres, receives passing passenger up to ten thousand person-times every day.Service area north and south two district, current celestial being mountain sewage quantity every day is about 180 tons, pollution discharge standard (table 1) during design requirements effluent quality after treatment reaches " the main Sewage Water Emissions limit value of Taihu Lake basin urban wastewater treatment firm " (DB32/1702-2007).
The main Sewage Water Emissions limit value of table 1 TAI HU AREA urban wastewater treatment firm (building after on January 1st, 2008)
Detect celestial being mountain service area sewage, water quality situation is in table 2.Sewage total nitrogen content height is wherein again based on ammonia nitrogen, and overall C/N is lower for sewage, and total phosphorous is higher, and intractability is large, and therefore design 20L/h pilot plant and carry out enforcement of the present invention checking, pilot scale pond body size and equipment are in table 3.
Table 2 celestial being mountain sewage quality
| Pollution factor | COD Cr | BOD 5 | SS | Ammonia nitrogen | Total nitrogen | Total phosphorus | pH |
| Numerical value | 200～400mg/L | ≤200mg/L | ≤200mg/L | 60～130mg/L | 70～150mg/L | 4～8mg/L | 6～9 |
Table 3 size and equipment
It is as follows that use apparatus of the present invention carry out sewage water treatment method idiographic flow:
(1) waste water of flushing the toilet in Expressway Service, employee's sanitary sewage, vehicle repairing factory oily(waste)water, kitchen kitchen waste water are collected by pipeline, converge in the equalizing tank 1 to Sewage treatment systems, whipping device even water quality is set in pond, reduces system loading and impact.
(2) sewage in equalizing tank 1 is delivered in anaerobic reation pool 2 by water pump and carries out flowing reactive; Described anaerobic reation pool 2 inside is divided into the reaction chamber of several series connection by dividing plate 2-1, flow deflector 2-2 is equipped with in each reaction chamber, flow deflector is inserted by water surface upper end, the bottom of flow deflector to the bending of current inflow direction and with reaction tank bottom leave water stream channel, make each reaction chamber all form relatively independent upper downflow system sludge bed system; The bending angle of described flow deflector is 130 degree; The spacing of described flow deflector and next dividing plate is 1/3 of spacing between adjacent separator; Current in previous reaction chamber are crossed dividing plate enter in next reaction chamber by being turned over stream, and overall current form vertical current labyrinth; DO in anaerobic reation pool controls at below 0.2mg/L; Sewage utilizes the dissolved organic matter in raw waste water to carry out anaerobic phosphorus release by polyP bacteria in anaerobic reation pool.
(3) anaerobic reation pool 2 water outlet is input to flowing reactive in hypoxia response pond 3, the denitrifying bacteria in the mud of oxygen-starved area utilizes the nitrate of remaining organism and backflow to carry out denitrification denitrogenation; Inside, described hypoxia response pond 3 is divided into the reaction chamber of several series connection by dividing plate 3-1, flow deflector 3-2 is equipped with in each reaction chamber, flow deflector is inserted by water surface upper end, leaves water stream channel bottom flow deflector and reaction tank, and each reaction chamber all forms relatively independent upper downflow system sludge bed system; The spacing of described flow deflector and next dividing plate is 1/2 of adjacent separator spacing; Because sewage in expressway service C/N is than low, therefore take segmental influent, 30% of described anaerobic reation pool water outlet enters in first reaction chamber in hypoxia response pond, and 70% to enter the subsequent reactions in hypoxia response pond indoor; Current in the previous reaction chamber in described hypoxia response pond are crossed dividing plate enter in next reaction chamber by being turned over stream, mixed solution 200 ~ 300% in last reaction chamber is back in the first reaction chamber, plug-flow in the reaction chamber together with the mixed solution of front portion, hypoxia response pond, in system, current present the compound fluidised form that plug-flow combines with complete mixed flow, overall current form front metacyclic vertical current labyrinth, improve capacity utilization, promote sewage and nitrobacteria, fully the contacting of denitrifying bacterium, increase substantially sewage treating efficiency; DO in hypoxia response pond controls at below 0.5mg/L.
(4) hypoxia response pond 3 water outlet is input in aeration Aerobic Pond 4 carries out aeration aerobic reaction, in aerobic section, nitrifier carries out nitrification is that nitrate is to be back to anoxic section denitrification by the mineralized nitrogen in waste water, polyP bacteria carries out aerobic suction phosphorus simultaneously, and remaining organism is also oxidized by aerobic bacteria at this.
End in described aeration aerobic reaction pond 4 is provided with three phase separation precipitation water exit end, aerobic reactor zone and three phase separation precipitate and arrange active clapboard 4-1 between water exit end and intercept aeration disturbance, stirring at low speed device 4-2 is joined at the rear portion of dividing plate, pond body end arranges triphase separator 4-3, water outlet is discharged through profile of tooth effluent weir 4-4, bottom, sludge settling district and ground are 60 ° of oblique angles, and precipitating sludge flow in bio-reaction zone from sliding back to; Because three phase separation and aerobic zone are combined in same pond, from spatially having lacked a link, technique is simply taken up an area few, saves working cost.
For strengthening denitrogenation dephosphorizing strengthening biochemical effects, initial operating stage is disposable in aeration aerobic reaction pond adds diatomite 2.5kg, later stage fills into diatomite on a small quantity, system is made to possess good bio-carrier capacity, meet the growth space of microbial biomass in system, improve the biological concentration of reactive system to MLSS > 5g/L; DO controls at 2 ~ 4mg/L; Mixed solution 200 ~ 300% in aeration Aerobic Pond is back in last reaction chamber in described hypoxia response pond, the oblique angle place mud of settling region is back in first reaction chamber of described anaerobic reation pool by sludge pump 100%, diatomite is scattered in the links of system simultaneously, with the synergy of microorganism in biochemical treatment system, reduce the organism in sewage and ammonia-nitrogen content; Diatomite has huge specific surface and suitable surperficial electronegativity, it is again a kind of excellent porous biological carrier, the a large amount of enrichment of multiple-microorganism and biofilm are inside and outside diatomite, highly dense also keeps bioactive functions, the microbial film on diatomite surface also also exists Simultaneous nitrification-denitrification (SND) process, thus effectively can reduce ammonia nitrogen, the total nitrogen in waste water.In addition, in denitrifying bacteria (heterotrophic organism) Metabolic activity, there is assimilation denitrification in anaerobic environment next section nitrate nitrogen, nitrate for electron donor generation alienation denitrification using nitrate or nitrite as electron acceptor(EA), carbon source, is finally resolved into nitrogen and removes by another part.
(5) aeration Aerobic Pond 4 water outlet is input to artificial swamp 5, utilize the plant of plantation to process further it, the water outlet of artificial swamp is drained in natural stream networks.
After normal operation, stable water outlet reaches pollution discharge standard in " the main Sewage Water Emissions limit value of Taihu Lake basin urban wastewater treatment firm " (DB32/1702-2007) after testing.
As mentioned above, although represented with reference to specific preferred embodiment and described the present invention, it shall not be construed as the restriction to the present invention self.Under the spirit and scope of the present invention prerequisite not departing from claims definition, various change can be made in the form and details to it.
Claims (6)
1. a treatment unit for decentralized high-ammonia-nitrogen sewage, it is characterized in that comprising connect successively equalizing tank, anaerobic reation pool, hypoxia response pond, aeration Aerobic Pond and artificial swamp;
Described equalizing tank is connected with anaerobic reation pool by water pump and water pipe; The inner reaction chamber being divided into several series connection by dividing plate of described anaerobic reation pool, flow deflector is equipped with in each reaction chamber, flow deflector is inserted by water surface upper end, the bottom of flow deflector to the bending of current inflow direction and with reaction tank bottom leave water stream channel, make each reaction chamber all form relatively independent upper downflow system sludge bed system; Current in previous reaction chamber are crossed dividing plate enter in next reaction chamber by being turned over stream, and overall current form vertical current labyrinth;
The inner reaction chamber being divided into several series connection by dividing plate in described hypoxia response pond, flow deflector is equipped with in each reaction chamber, flow deflector is inserted by water surface upper end, leaves water stream channel bottom flow deflector and reaction tank, and each reaction chamber all forms relatively independent upper downflow system sludge bed system; Described anaerobic reation pool water outlet is divided into two pipelines, and a pipeline is connected with first reaction chamber in hypoxia response pond, and another pipeline is connected with the subsequent reactions room in hypoxia response pond; Current in the previous reaction chamber in described hypoxia response pond are crossed dividing plate enter in next reaction chamber by being turned over stream, and last reaction chamber is provided with mixed-liquor return pipeline and is connected with the first reaction chamber; Overall current form front metacyclic vertical current labyrinth;
Described hypoxia response pond water outlet is connected with aeration Aerobic Pond; End in described aeration aerobic reaction pond is provided with three phase separation precipitation water exit end, aerobic reactor zone and three phase separation precipitate and arrange active clapboard between water exit end and intercept aeration disturbance, stirring at low speed device is joined at the rear portion of dividing plate, pond body end arranges triphase separator, bottom, settling region and ground are oblique angle, and precipitating sludge flow in bio-reaction zone from sliding back to; Be provided with mixed-liquor return pipeline in aeration Aerobic Pond to be connected with last reaction chamber in described hypoxia response pond; The oblique angle place of settling region is provided with sludge return pipe and is connected with first reaction chamber of described anaerobic reation pool;
Described aeration Aerobic Pond water outlet is connected with artificial swamp, and the water outlet of artificial swamp is connected with natural stream networks.
2. the treatment unit of decentralized high-ammonia-nitrogen sewage according to claim 1, is characterized in that: in described anaerobic reation pool, and the bending angle of flow deflector is 130 degree; The spacing of described flow deflector and next dividing plate is 1/3 of spacing between adjacent separator.
3. the treatment unit of decentralized high-ammonia-nitrogen sewage according to claim 1, is characterized in that: in described anaerobic reation pool, is provided with evacuation port in each reaction chamber.
4. the treatment unit of decentralized high-ammonia-nitrogen sewage according to claim 1, is characterized in that: in described hypoxia response pond, and the spacing of described flow deflector and next dividing plate is 1/2 of adjacent separator spacing.
5. the treatment unit of decentralized high-ammonia-nitrogen sewage according to claim 1, is characterized in that: in described hypoxia response pond, be provided with evacuation port in each reaction chamber.
6. the treatment unit of decentralized high-ammonia-nitrogen sewage according to claim 1, is characterized in that: in described aeration aerobic reaction pond, and bottom, settling region and ground are 50 ~ 70 ° of oblique angles.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105461174A (en) * | 2015-12-21 | 2016-04-06 | 广东水清环保科技有限公司 | Method for removing high ammonia nitrogen from pig farm dry manure cleaning livestock wastewater |
| CN107285469A (en) * | 2017-08-15 | 2017-10-24 | 广东高龙环保科技有限公司 | A kind of monomer piggery waste method for treating water |
| CN111675337A (en) * | 2020-07-09 | 2020-09-18 | 陆伟东 | VFL vertical flow labyrinth water flow structure, device, system and method for sewage treatment |
-
2015
- 2015-05-19 CN CN201520324213.XU patent/CN204752469U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105461174A (en) * | 2015-12-21 | 2016-04-06 | 广东水清环保科技有限公司 | Method for removing high ammonia nitrogen from pig farm dry manure cleaning livestock wastewater |
| CN107285469A (en) * | 2017-08-15 | 2017-10-24 | 广东高龙环保科技有限公司 | A kind of monomer piggery waste method for treating water |
| CN111675337A (en) * | 2020-07-09 | 2020-09-18 | 陆伟东 | VFL vertical flow labyrinth water flow structure, device, system and method for sewage treatment |
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Address after: 211102 floor 12, building a, cecep building, No. 2, qingshuiting West Road, moling street, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Huafang water (China) Co.,Ltd. Address before: 211200 No. 20 Zhongxing East Road, Lishui Economic Development Zone, Nanjing, Jiangsu Patentee before: JIANGSU PROVINCE JIAQING WATER SERVICES Co.,Ltd. |
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Granted publication date: 20151111 |
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| CF01 | Termination of patent right due to non-payment of annual fee |