CN207072840U - A kind of staged aeration waste water processing system - Google Patents

A kind of staged aeration waste water processing system Download PDF

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Publication number
CN207072840U
CN207072840U CN201720970656.5U CN201720970656U CN207072840U CN 207072840 U CN207072840 U CN 207072840U CN 201720970656 U CN201720970656 U CN 201720970656U CN 207072840 U CN207072840 U CN 207072840U
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China
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ponds
aeration
rotating disk
ladder
pond
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CN201720970656.5U
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田启平
钟伟尧
刘敏
余坚
郑豪
黄端林
程飞
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ZHEJIANG SUPER MAX ENVIRONMENTAL ENGINEERING CO LTD
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ZHEJIANG SUPER MAX ENVIRONMENTAL ENGINEERING CO LTD
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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Abstract

The utility model discloses a kind of staged aeration waste water processing system, including A ponds, biological rotating disk complete set of equipments, staged aeration tank, sedimentation basin, Aeration fan and aerator, the A ponds are provided with wastewater inlet, A ponds connect biological rotating disk complete set of equipments by biological rotating disk water inlet pipe, there is the biological rotating disk of suitable bio-film colonization in the biological rotating disk complete set of equipments, the biological rotating disk complete set of equipments is aerated into flow tube by ladder and is connected with ladder aeration tank, the ladder aeration tank is divided into several lattice ponds, reflux pump in ladder aeration is provided with last lattice pond, reflux pump connects A ponds and first lattice pond by pipeline respectively in the ladder aeration, last lattice pond connects sedimentation basin by sedimentation basin water inlet pipe, sedimentation tank mud water separator and sludge from sedimentation tank pump are provided with the sedimentation basin.The utility model ensures wastewater treatment efficiency, facilitates Treatment of Sludge, reduces cost of sewage disposal, can effectively remove TN, realize that high standard TN is up to standard.

Description

A kind of staged aeration waste water processing system
Technical field
The utility model belongs to field of Environment Protection, more particularly to a kind of staged aeration waste water processing system.
Background technology
With continuous improvement of the country to environmental requirement, various sewage disposal devices emerge in an endless stream, still, at present at sewage Reason equipment is typically all relatively simple, and such as single biological rotating disk complete set of equipments, also aeration tank coordinate sedimentation basin etc. dirt Water treatment facilities, although can handle sewage, a whole set of sewage disposal system can not be formed system is carried out to sewage The processing of change, the sludge that obtains after processing is also needed to by special processing equipment handled, processing cost is high, moreover, in mesh Under preceding most of municipal sewage TN difficult overall background up to standard, single sewage disposal device is difficult to meet TN clearance and reach Mark requires.
Utility model content
The utility model is in order to solve defect present in above-mentioned prior art and deficiency, there is provided a kind of by biological rotating disk Complete set of equipments, staged aeration tank, sedimentation basin and sludge circulation system are combined, and are ensured wastewater treatment efficiency, are facilitated at sludge Reason, cost of sewage disposal is reduced, while can effectively remove TN, realize high standard TN staged aeration waste water processing systems up to standard System.
The technical solution of the utility model:A kind of staged aeration waste water processing system, including be sequentially connected A ponds, life Thing rotating disk complete set of equipments, staged aeration tank and sedimentation basin and the Aeration fan being connected on staged aeration tank and it is arranged on Aerator in staged aeration tank, the A ponds are provided with wastewater inlet, and A ponds are turned by biological rotating disk water inlet pipe connection biology Disk complete set of equipments, there is the biological rotating disk of suitable bio-film colonization in the biological rotating disk complete set of equipments, and the biological rotating disk is into being arranged Standby be aerated by ladder into flow tube is connected with ladder aeration tank, and the ladder aeration tank is divided into several lattice ponds, last Reflux pump in ladder aeration is provided with lattice pond, reflux pump connects A ponds and first by pipeline respectively in the ladder aeration Lattice pond, last lattice pond connect sedimentation basin by sedimentation basin water inlet pipe, sedimentation tank mud moisture are provided with the sedimentation basin Disembark and sludge from sedimentation tank pump, the sludge from sedimentation tank pump connects A ponds, first lattice pond and excess sludge by pipeline respectively Discharge pipe, the sedimentation basin are provided with sedimentation basin outlet pipe, and the Aeration fan connects biology by a biological rotating disk air supply pipe Rotating disk complete set of equipments.
Biological rotating disk complete set of equipments, staged aeration tank, sedimentation basin and sludge circulation are utilized system phase by the utility model With reference to, ensure wastewater treatment efficiency, facilitate Treatment of Sludge, reduce cost of sewage disposal, while TN can be effectively removed, realize high Standard TN is up to standard.
Preferably, the quantity in the lattice pond be 4, respectively the first lattice pond, the second lattice pond, vertically dividing equally check into three pond and 4th lattice pond, the volume distribution in four lattice ponds are followed successively by 40%, 30%, 20%, 10%, the first lattice pond and the second lattice Pond is built with ORP detectors, and the vertically dividing equally check into three pond and the 4th lattice pond are built with DO measuring instruments.
This kind of structure make it that its is compact-sized, rationally distributed, convenient to detect in the first lattice pond and the second lattice pond ORP, the convenient DO detected in vertically dividing equally check into three pond and the 4th lattice pond.
Preferably, mass air flow sensor and air control valve are equipped between the Aeration fan and each aerator, it is described Biological rotating disk inner circulating tube is provided with biological rotating disk complete set of equipments.
This kind of structure conveniently adjusts air capacity to realize ORP the or DO state modulator indexs in each lattice pond, reaches ladder Purpose is aerated, is measured by ORP instrument, DO instrument, mass air flow sensor, flow is aerated by air adjustment valve regulation to keep.
Preferably, it is electric provided with being flowed back in return flow meter in A ponds and A ponds between reflux pump and A ponds in the ladder aeration Regulating valve is moved, is provided with return flow meter and ladder aeration in ladder aeration tank in ladder aeration between reflux pump and the first lattice pond Return valve in pond.
Preferably, the sludge from sedimentation tank pump connects exteenal reflux sludge pipe and excess sludge respectively by clarifier sludge pipe Discharge pipe, A ponds exteenal reflux flowmeter and A ponds exteenal reflux electric control valve are provided between the exteenal reflux sludge pipe and A ponds, it is described Exteenal reflux flowmeter in ladder aeration tank is provided between exteenal reflux sludge pipe and the first lattice pond and the exteenal reflux of ladder aeration tank is adjusted Valve.
It is interior returned sludge that reflux pump is corresponding in ladder aeration, is exteenal reflux sludge corresponding to sludge from sedimentation tank pump;It is interior Returned sludge is entered the interior sludge back flow quantity in A ponds by the motorized adjustment valve regulation that flowed back in return flow meter metering in A ponds and A ponds; Interior returned sludge enters first point by return valve regulation in return flow meter metering in ladder aeration tank and ladder aeration tank The interior sludge back flow quantity in lattice pond.Exteenal reflux sludge is entered by the metering of A ponds exteenal reflux flowmeter and A ponds exteenal reflux motorized adjustment valve regulation Enter the exteenal reflux sludge quantity in A ponds;Exteenal reflux sludge is by the metering of ladder aeration tank exteenal reflux flowmeter and the exteenal reflux of ladder aeration tank Adjust the exteenal reflux sludge quantity that valve regulation enters the first lattice pond.
Preferably, the wastewater inlet is provided with A ponds water inlet pipe, and A ponds water inlet pipe is provided with feed water flow gauge, described A is additionally provided with mixing and blending machine in pond.
This kind of structure facilitates sewage to enter A ponds, while can measure the sewage quantity into A ponds;Also ensure the dirt of entrance Water is sufficiently mixed with returned sludge.
Preferably, the excess sludge discharge pipe is provided with excess sludge flowmeter and excess sludge motor regulated valve.
Excess sludge is discarded by excess sludge discharge pipe, and it is electronic by the metering of excess sludge flowmeter and excess sludge to discard amount Control valve is adjusted.
A kind of sewage water treatment method of staged aeration waste water processing system, comprises the steps:
1)Sewage is sufficiently mixed through A ponds water inlet pipe and by the metering of feed water flow gauge into A ponds with returned sludge;
2)Well-mixed mud mixture enters in biological rotating disk complete set of equipments through biological rotating disk water inlet pipe in A ponds, Biological rotating disk is rotated with 5r/min, makes microorganism biofilm on biological rotating disk;
3)It is aerated into flow tube and is entered in ladder aeration tank by ladder through the sewage that biological rotating disk treats, successively by 4 Lattice pond purified treatment, it is -400mv ~ 0mv that operation, which keeps the ORP in the first lattice pond, and the ORP in the second lattice pond is 100mv ~ 200mv, the DO in vertically dividing equally check into three pond are 0.6-0.9mg/L, and the DO in the 4th lattice pond is 1.0-1.5 mg/L;
4)Muddy water after being handled by ladder aeration tank, sedimentation basin is entered by sedimentation basin water inlet pipe and carries out mud-water separation, muddy water point Water from after is discharged into advanced treatment unit by sedimentation basin outlet pipe and is further processed, and the sludge after separation is by sedimentation basin muddy water Seperator is scraped into center, is flowed back and discarded respectively into clarifier sludge pipe by sludge from sedimentation tank pumped, returned sludge A ponds and the first lattice pond are extracted into by exteenal reflux sludge pipe respectively, excess sludge is discarded by excess sludge discharge pipe, discards amount by remaining The remaining metering of sludge stream gauge and the regulation of excess sludge motor regulated valve.
Preferably, the step 1)Middle returned sludge includes interior returned sludge and exteenal reflux sludge, and interior returned sludge passes through Reflux pump pump is measured and the motorized adjustment that flowed back in A ponds to A ponds by return flow meter in A ponds in ladder aeration in 4th lattice pond Valve regulation enters the interior sludge back flow quantity in A ponds;Exteenal reflux sludge is by sedimentation basin pollution discharge pump pump to A ponds by A ponds exteenal reflux flow Meter metering and the valve regulation of A ponds exteenal reflux motorized adjustment enter the exteenal reflux sludge quantity in A ponds;Step 3)In sludge in the 4th lattice pond Sludge pump is aerated by ladder and is pumped back to A ponds and the first lattice pond, wherein the interior sludge back flow quantity in the first lattice of blowback pond is by rank Return valve regulation in return flow meter and ladder aeration tank in terraced aeration tank;The step 4)The first lattice pond of middle entrance Exteenal reflux sludge quantity adjusts valve regulation by ladder aeration tank exteenal reflux flowmeter and the exteenal reflux of ladder aeration tank.
Preferably, the step 2)In in biological rotating disk a large amount of accumulation implantation bacillus subtilises.
Biological rotating disk complete set of equipments, staged aeration tank, sedimentation basin and sludge circulation are utilized system phase by the utility model With reference to, ensure wastewater treatment efficiency, facilitate Treatment of Sludge, reduce cost of sewage disposal, while TN can be effectively removed, realize high Standard TN is up to standard;To TN removal efficiency up to more than 70%, simultaneously because realizing that ladder is aerated, by de- N, de- C function distributions are exposing In the different lattice ponds in gas pond, improve de- N, take off C efficiency, accomplish in Anoxic/Aerobic aeration tank accurate oxidation-reduction potential and DO monitoring and regulation, reach energy-conservation 10-20% purpose.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
1.A ponds in figure, 11.A ponds water inlet pipe, 12. feed water flow gauge, 13. mixing and blending machines, return flow in 14.A ponds Count, flow back electric control valve in 15.A ponds, 16.A ponds exteenal reflux flowmeter, 17.A ponds exteenal reflux electric control valve, and 2. biologies turn Disk complete set of equipments, 21. biological rotating disk water inlet pipes, 22. biological rotating disks, 23. biological rotating disk air supply pipes, 24. biological rotating disks are interior to be circulated Pipe, 3. staged aeration tanks, 31. ladders are aerated into flow tube, 32. first lattice ponds, 33. second lattice ponds, 34. vertically dividing equally check into three Pond, 35. the 4th lattice ponds, reflux pump in 36. ladders aeration, return flow meter in 37. ladders aeration, 38. ladders aeration is outer to return Flow flowmeter, 39. ladders aeration exteenal reflux regulating valve, return valve in 310. ladders aeration, 311. Aeration fans, 312. is empty Air-flow gauge, 313. air control valves, 314. aerators, 315.ORP instrument, 316.DO instrument, 4. sedimentation basins, the water inlet of 41. sedimentation basins Manage, 42. sedimentation tank mud water separators, 43. sedimentation basin outlet pipes, 44. sludge from sedimentation tank pumps, 45. clarifier sludge pipes, outside 46. Reflux sludge tube, 47. excess sludge discharge pipes, 48. excess sludge flowmeters, 49. excess sludge motor regulated valves.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, but is not that model is protected to the utility model The limitation enclosed.
As shown in figure 1, a kind of staged aeration waste water processing system, including the A ponds 1 that are sequentially connected, biological rotating disk are complete Equipment 2, staged aeration tank 3 and sedimentation basin 4 and the Aeration fan 311 being connected on staged aeration tank 3 and it is arranged on rank Aerator 314 in ladder type aeration tank 3.
Sewage disposal process of the present utility model is as follows:
Sewage is measured into A ponds 1 through A ponds water inlet pipe 11 and by feed water flow gauge 12, and interior returned sludge is through the stream that flowed back in A ponds Gauge 14 measures and interior sludge back flow quantity of the regulation of electric control valve 15 into A ponds 1 that flowed back in A ponds.Exteenal reflux sludge by A ponds outside Return flow meter 16 measures and the regulation of A ponds exteenal reflux electric control valve 17 is into the exteenal reflux sludge quantity in A ponds 1, has in A ponds 1 Mixing and blending machine 13, it is ensured that water inlet is sufficiently mixed with returned sludge.
Well-mixed mud mixture enters biological rotating disk complete set of equipments 2 through biological rotating disk water inlet pipe 21 in A ponds 1, There is the biological rotating disk 22 of suitable bio-film colonization in biological rotating disk complete set of equipments 2, biological rotating disk 22 is rotated with 5r/min, makes micro- life Thing biofilm on biological rotating disk 22, the aeration of biological rotating disk complete set of equipments 2 are entered by biological rotating disk air supply pipe 23, are biological rotating disk The microorganism of aging, makes biological rotating disk by the hydraulic mixing of biological rotating disk inner circulating tube 24 in 22 oxygen supplys and stripping biological rotating disk 22 The further hybrid reaction of muddy water in 22.
It is aerated into flow tube 31 and is entered in ladder aeration tank 3 by ladder through the sewage that biological rotating disk complete set of equipments 2 treats, rank Terraced aeration tank 3 is divided into four lattice ponds, respectively the first lattice pond 32, the second lattice pond 33, vertically dividing equally check into three pond 34, the 4th point Lattice pond 35, the volume distribution in four lattice ponds is followed successively by 40%, 30%, 20%, 10%, in the first lattice pond 32 and the second lattice pond 33 Built with ORP detectors 315, it is -400mv ~ 0mv that operation, which keeps the ORP in the first lattice pond 32, in the second lattice pond 33 ORP is 100mv ~ 200mv.In the lattice pond 35 of vertically dividing equally check into three pond 34 and the 4th)Built with DO measuring instruments 316, is kept in operation DO in vertically dividing equally check into three pond 34 is 0.6-0.9mg/L, and it is 1.0-1.5 mg/L to keep the DO in the 4th lattice pond 35.The parameter is by adjusting Section air capacity realizes that the air of ladder aeration tank 3 is supplied by Aeration fan 311, the ORP or DO in each lattice pond by ORP instrument 315, DO instrument 316, mass air flow sensor 312 are measured, and the regulation of air control valve 313 is aerated flow to keep.There is rank in 4th lattice pond 35 Reflux pump 36 in ladder aeration, realizes in sludge and flows back, be inside back to the lattice pond 32 of A ponds 1 and first.Exteenal reflux sludge(By precipitating Pond sludge pump provides power)With interior returned sludge(By ladder be aerated in reflux pump provide power)Into the first lattice pond 32, divide Do not measured by return flow meter 37 in ladder aeration tank and ladder aeration tank exteenal reflux flowmeter 38, by interior return valve 310 Adjusted with exteenal reflux regulating valve 39, maintain a certain proportion of inside and outside capacity of returns.
Muddy water after being handled by ladder aeration tank 3, sedimentation basin 4 is entered by sedimentation basin water inlet pipe 41 and carries out mud-water separation, muddy water Water after separation is discharged into advanced treatment unit by sedimentation basin outlet pipe 43 and is further processed, and the sludge after separation is by sedimentation basin Mud 42 is scraped into center, is extracted out by sludge from sedimentation tank pump 44 and is flowed back and give up respectively into clarifier sludge pipe 45 Abandon, exteenal reflux sludge is extracted into the lattice pond 32 of A ponds 1 and first respectively by exteenal reflux sludge pipe 46, and excess sludge is arranged by excess sludge Outlet pipe 47 is discarded, and discarded amount is measured by excess sludge flowmeter 48 to be adjusted with excess sludge motor regulated valve 49.
The sewage water treatment method, by being implanted into bacillus subtilis, largely accumulated in biological rotating disk, in the first lattice pond 32 and second under anaerobic environment in lattice pond 33, to TN removal efficiency up to more than 70%, simultaneously because realize that ladder is aerated, will De- N, C function distributions are taken off in the different lattices of aeration tank, improve de- N, C efficiency is taken off, accomplishes in Anoxic/Aerobic aeration tank The monitoring and regulation of accurate oxidation-reduction potential and DO, reach energy-conservation 10-20% purpose.In current most of municipal sewage TN Under difficult overall background up to standard, this method is a kind of effectively removing TN, realizes that high standard TN reaches calibration method.
By taking certain practical implementation service data as an example, the processing method treatment effect see the table below:
Staged aeration waste water handles each unit treatment effect list.
Biological rotating disk complete set of equipments in the utility model is the conventional equipment of market buying, therefore does not state carefully.

Claims (7)

  1. A kind of 1. staged aeration waste water processing system, it is characterised in that:Its A pond for including being sequentially connected, biological rotating disk are complete Equipment, staged aeration tank and sedimentation basin and the Aeration fan being connected on staged aeration tank and be arranged on staged aeration Aerator in pond, the A ponds are provided with wastewater inlet, and A ponds connect biological rotating disk complete set of equipments by biological rotating disk water inlet pipe, There is the biological rotating disk of suitable bio-film colonization in the biological rotating disk complete set of equipments, the biological rotating disk complete set of equipments is exposed by ladder Gas enters flow tube and is connected with ladder aeration tank, and the ladder aeration tank is divided into several lattice ponds, is provided with last lattice pond Reflux pump in ladder aeration, reflux pump connects A ponds and first lattice pond by pipeline respectively in ladder aeration, last Individual lattice pond connects sedimentation basin by sedimentation basin water inlet pipe, and sedimentation tank mud water separator is provided with the sedimentation basin and sedimentation basin is arranged Dredge pump, the sludge from sedimentation tank pump connects A ponds, first lattice pond and excess sludge discharge pipe by pipeline respectively, described heavy Shallow lake pond is provided with sedimentation basin outlet pipe, and the Aeration fan connects biological rotating disk complete set of equipments by a biological rotating disk air supply pipe.
  2. A kind of 2. staged aeration waste water processing system according to claim 1, it is characterised in that:The number in the lattice pond Measure as 4, respectively the first lattice pond, the second lattice pond, vertically dividing equally check into three pond and the 4th lattice pond, the volume point in four lattice ponds With being followed successively by 40%, 30%, 20%, 10%, the first lattice pond and the second lattice pond are built with ORP detectors, described 3rd point Lattice pond and the 4th lattice pond are built with DO measuring instruments.
  3. A kind of 3. staged aeration waste water processing system according to claim 2, it is characterised in that:The Aeration fan with Mass air flow sensor and air control valve are equipped between each aerator, biological rotating disk is provided with the biological rotating disk complete set of equipments Inner circulating tube.
  4. A kind of 4. staged aeration waste water processing system according to claim 2, it is characterised in that:In the ladder aeration Be provided with A ponds backflow electric control valve in return flow meter and A ponds between reflux pump and A ponds, ladder be aerated in reflux pump and the Provided with return valve in return flow meter in ladder aeration tank and ladder aeration tank between one lattice pond.
  5. A kind of 5. staged aeration waste water processing system according to claim 4, it is characterised in that:The sludge from sedimentation tank Pump connects exteenal reflux sludge pipe and excess sludge discharge pipe, the exteenal reflux sludge pipe and A ponds respectively by clarifier sludge pipe Between be provided with A ponds exteenal reflux flowmeter and A ponds exteenal reflux electric control valve, between the exteenal reflux sludge pipe and the first lattice pond Provided with ladder aeration tank exteenal reflux flowmeter and ladder aeration tank exteenal reflux regulating valve.
  6. A kind of 6. staged aeration waste water processing system according to claim 5, it is characterised in that:On the wastewater inlet Provided with A ponds water inlet pipe, A ponds water inlet pipe is provided with feed water flow gauge, and mixing and blending machine is additionally provided with the A ponds.
  7. A kind of 7. staged aeration waste water processing system according to claim 5, it is characterised in that:The excess sludge row Outlet pipe is provided with excess sludge flowmeter and excess sludge motor regulated valve.
CN201720970656.5U 2017-08-04 2017-08-04 A kind of staged aeration waste water processing system Active CN207072840U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107311295A (en) * 2017-08-04 2017-11-03 浙江水美环保工程有限公司 A kind of staged aeration waste water processing system and its sewage water treatment method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107311295A (en) * 2017-08-04 2017-11-03 浙江水美环保工程有限公司 A kind of staged aeration waste water processing system and its sewage water treatment method

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