CN204874023U - Bury formula catalytic oxidation AO technology sewage treatment plant - Google Patents

Bury formula catalytic oxidation AO technology sewage treatment plant Download PDF

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Publication number
CN204874023U
CN204874023U CN201520600216.1U CN201520600216U CN204874023U CN 204874023 U CN204874023 U CN 204874023U CN 201520600216 U CN201520600216 U CN 201520600216U CN 204874023 U CN204874023 U CN 204874023U
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China
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pond
catalytic oxidation
aerobic pond
contact aerobic
pump
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Inventor
胡树超
王茂玉
黄利
曾立云
陈永志
法林萃
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LANZHOU RAILWAY SURVEY AND DESIGN INSTITUTE Co Ltd
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LANZHOU RAILWAY SURVEY AND DESIGN INSTITUTE Co Ltd
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Abstract

The utility model discloses a bury formula catalytic oxidation AO technology sewage treatment plant, including setting gradually first heavy pond, catch basin, equalizing basin, the integral type catalytic oxidation AO reactor below the earth's surface, one of them style catalytic oxidation AO reactor includes that the oxygen deficiency pond, the one -level that communicate have in proper order contacted the oxygen pond, the second grade has contacted oxygen pond, sedimentation tank, the equalizing basin passes through the diaphragm pump and links to each other with the oxygen deficiency pond, the one -level has contacted the upper portion that oxygen pond, second grade had contacted the oxygen pond and has been equipped with aeration systems to having contacted oxygen pond, second grade in the one -level and being equipped with three -dimensional elastic filler in having contacted the oxygen pond, one side of sedimentation tank is equipped with the water purification outlet pipe, and its bottom is equipped with the mud delivery pipe. The utility model discloses divide into the two -stage with the good oxygen section of traditional AO technology to be equipped with elastic space packing in the cell body, more be favorable to nitrifying the growth of fungus, guarantee getting rid of of COD and NH3+ -N, and the saving energy consumption, practice thrift area simultaneously, reduce running cost and initial investment.

Description

A kind of buried catalytic oxidation A/O process spent water treatment unit
Technical field
The utility model relates to a kind of catalytic oxidation A/O process spent water treatment unit, particularly relates to a kind of buried catalytic oxidation A/O process spent water treatment unit, belongs to field of biological sewage treatment.
Background technology
Along with expanding economy, body eutrophication phenomenon is day by day serious.Body eutrophication is mainly caused by the existence of the nutritive substances such as N, P.Denitrogenation dephosphorizing has become the focus and emphasis of the research of sewage disposal in recent years.Current utilization is activated sludge process and biomembrance process denitrogenation dephosphorizing comparatively widely.But these traditional technologys often also exist, and floor space is large, operation process is complicated, the shortcoming of poor efficiency high energy consumption.
Utility model content
The purpose of this utility model is to problems of the prior art, provides a kind of buried catalytic oxidation A/O process spent water treatment unit.
Buried catalytic oxidation A/O process spent water treatment unit of the present utility model, comprises the preliminary sedimentation tank, water collecting basin, equalizing tank, the integral type catalytic oxidation A/O reactor that are successively set on below earth's surface; Wherein the side of preliminary sedimentation tank is provided with water inlet pipe, and opposite side top communicates with water collecting basin top; The bottom of preliminary sedimentation tank is provided with mud discharging pipe; Water collecting basin is connected by pipeline and lift pump with equalizing tank; Described integral type catalytic oxidation A/O reactor comprise be communicated with successively anoxic pond, one-level contact Aerobic Pond, Secondary contact Aerobic Pond, settling tank, described equalizing tank is connected with anoxic pond by surge pump; The built-in agitator of anoxic pond; The top of one-level contact Aerobic Pond, Secondary contact Aerobic Pond is provided with aerating system, and is provided with 3 D elastic filler in one-level contact Aerobic Pond, Secondary contact Aerobic Pond; The side of settling tank is provided with water purification rising pipe, is provided with mud discharging pipe bottom it.
Principle of work of the present utility model: sewage enters the suspended solid (by its base sludge delivery pipe discharged) of preliminary sedimentation tank in precipitation removal sewage, again through water collecting basin (collect and store sewage), then after equalizing tank (regulating the water quality and quantity of sewage), enter the anoxic pond of buried catalytic oxidation A/O reactor integratedly, in anoxic pond, oxygen bacterium and amphimicrobe utilize the voltaile fatty acid in former water fully to carry out anaerobic phosphorus release, and COD a large amount of in former water is removed; Organonitrogen in the simultaneous oxidation water that the COD of one-level contact Aerobic Pond to former water removes and NH 3 +-N; Secondary contact Aerobic Pond removes remaining COD and most NH 3 +-N, enters settling tank afterwards and carries out mud-water separation, and supernatant liquor is through the discharge of water purification rising pipe, and mud is discharged through settling tank base sludge delivery pipe.
Have constant microbial biomass to maintain in reactor, the mud discharging pipe of settling tank is connected with described anoxic pond by sludge reflux pump; Anoxic pond is connected with described Secondary contact Aerobic Pond by internal circulation pump.The nitrated mixed solution flowed out from Secondary contact Aerobic Pond is back to anoxic pond through internal circulation pump, and the reflux ratio of nitrated mixed solution is 200%-400%, fully carries out denitrification denitrogenation; Synchronously enter the mud also had through the backflow of sludge reflux pump autoprecipitation pond in anoxic pond, with the biomass of post-reactor, return sludge ratio is 50%-100%.
In described integral type catalytic oxidation A/O reactor, the bottom of anoxic pond to contact Aerobic Pond by water outlet bottom with one-level is communicated with, the top of one-level contact Aerobic Pond connects the bottom of Secondary contact Aerobic Pond by pipeline, the top of Secondary contact Aerobic Pond connects the bottom of settling tank by pipeline, the top of settling tank arranges water purification rising pipe.
The external air pump of described aerating system, to carry out aeration oxygen supply to one-level contact Aerobic Pond, Secondary contact Aerobic Pond.
For the ease of controlling, the mud discharging pipe in heavy pond, the mud discharging pipe of settling tank are equipped with control valve; The pipeline of lift pump, surge pump, internal circulation pump, sludge reflux pump both sides is equipped with control valve.
The utility model has the following advantages relative to prior art:
1, the aerobic section of traditional A/O technique is divided into two-stage by the utility model, and is provided with elastic solid filler in the body of pond, is more conducive to the growth of nitrifier, ensures COD and NH 3 +the removal of-N;
2, aerating system and sludge recirculation system are automatic control, achieve aeration oxygen supply to water quality and quantity adaptability, can energy efficient, reduce running cost and initial investment;
3, buried structure is adopted, floor space little (saving floor occupying area more than 30%), capital construction cost low (reducing by 30%), running cost low (reducing by 20%).
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with Fig. 1, structure and working principle of the present utility model is described further.
A kind of buried catalytic oxidation A/O process spent water treatment unit, comprises the preliminary sedimentation tank 1, water collecting basin 2, equalizing tank 3, the integral type catalytic oxidation A/O reactor 15 that are successively set on below earth's surface.Wherein the side of preliminary sedimentation tank 1 is provided with water inlet pipe, and opposite side top communicates with water collecting basin 2 top; The bottom of preliminary sedimentation tank 1 is provided with mud discharging pipe.Water collecting basin 2 is connected by pipeline and lift pump 13 with equalizing tank 3.Integral type catalytic oxidation A/O reactor 15 comprise be communicated with successively anoxic pond 4, one-level contact Aerobic Pond 5, Secondary contact Aerobic Pond 6, settling tank 7; The bottom that wherein bottom of anoxic pond 4 to contact Aerobic Pond 5 by water outlet with one-level is communicated with, the top of one-level contact Aerobic Pond 5 connects the bottom of Secondary contact Aerobic Pond 6 by pipeline, the top of Secondary contact Aerobic Pond 6 connects the bottom of settling tank 7 by pipeline, the top of settling tank 7 arranges water purification rising pipe.Equalizing tank 3 is connected with anoxic pond 4 by surge pump 14; The built-in agitator 10 of anoxic pond 4; The top of one-level contact Aerobic Pond 5, Secondary contact Aerobic Pond 6 is provided with the aerating system 9 of external air pump 16, and is provided with 3 D elastic filler 8 in one-level contact Aerobic Pond 5, Secondary contact Aerobic Pond 6; The side of settling tank 7 is provided with water purification rising pipe, is provided with mud discharging pipe bottom it, and this mud delivery pipe is connected with described anoxic pond 4 by sludge reflux pump 12; Anoxic pond 4 is connected with described Secondary contact Aerobic Pond 6 by internal circulation pump 11.Above-mentioned each pond body is synthetic glass structure.
For the ease of controlling, the mud discharging pipe of the mud discharging pipe of preliminary sedimentation tank 1, settling tank 7 is equipped with control valve; The pipeline of lift pump 13, surge pump 14, internal circulation pump 11, sludge reflux pump 12 both sides is equipped with control valve.
During use, sewage enters the suspended solid of preliminary sedimentation tank 1 in primary deposition removal sewage, the mud of preliminary sedimentation tank 1 is discharged by its base sludge delivery pipe I, then equalizing tank 3 is entered through lift pump 13, the anoxic pond 4 of equalizing tank 3 water outlet in surge pump 14 enters buried catalytic oxidation A/O reactor 15 integratedly successively, one-level contact Aerobic Pond 5, Secondary contact Aerobic Pond 6, settling tank 7.Anerobe and amphimicrobe utilize the voltaile fatty acid in former water fully to carry out anaerobic phosphorus release in anoxic pond 4, in former water, the COD of 60% is removed, the nitrated mixed solution flowed out from Secondary contact Aerobic Pond 6 is back to anoxic pond 4 through internal circulation pump 11, the reflux ratio of nitrated mixed solution is 200%-400%, fully carries out denitrification denitrogenation; Mixed solution flows into one-level contact Aerobic Pond 5 from anoxic pond 4 afterwards, mainly carries out removing the organonitrogen in simultaneous oxidation water and NH to the COD of former water 3 +-N, in former water, the COD of about 30% is removed; Synchronously enter the mud also had through the backflow of sludge reflux pump 12 autoprecipitation pond 7 in anoxic pond 4, with the biomass of post-reactor, return sludge ratio is 50%-100%.The water outlet of one-level contact Aerobic Pond 5 enters Secondary contact Aerobic Pond 6, and Secondary contact Aerobic Pond 6 Main Function is for removing remaining COD and most NH 3 +-N, simultaneously absorbs the phosphorus in sewage two Aerobic Pond section polyP bacteria excess, and mixed solution enters settling tank 7 and carries out mud-water separation afterwards, and supernatant liquor discharges through pure water pipe, and mud is discharged through settling tank 7 base sludge delivery pipe IV.
This equipment is used for the process of town domestic sewage, its effluent quality can reach more than the one-level A standard in National Standard of the People's Republic of China's town domestic sewage treatment plant pollutant emission standard (GB18918-2002), and can energy efficient, reduce running cost and initial investment.Compared with traditional wastewater treatment unit, can realize capital construction cost and reduce by 30%, running cost reduces by 20% and saves floor occupying area more than 30%, its COD, NH simultaneously 3 +the clearance of-N, TN, TP is respectively 90%, 98%, 80%, 90%, water outlet COD, NH 3 +-N, TN, TP are less than 40mg/L, 1mg/L, 15mg/L, 0.5mg/L respectively.

Claims (6)

1. a buried catalytic oxidation A/O process spent water treatment unit, comprises the preliminary sedimentation tank (1), water collecting basin (2), equalizing tank (3), integral type catalytic oxidation A/O reactor (15) that are successively set on below earth's surface; Wherein the side of preliminary sedimentation tank (1) is provided with water inlet pipe, and opposite side top communicates with water collecting basin (2) top; The bottom of preliminary sedimentation tank (1) is provided with mud discharging pipe; Water collecting basin (2) is connected by pipeline and lift pump (13) with equalizing tank (3); It is characterized in that: described integral type catalytic oxidation A/O reactor (15) comprises the anoxic pond (4), one-level contact Aerobic Pond (5), Secondary contact Aerobic Pond (6), the settling tank (7) that are communicated with successively, and described equalizing tank (3) is connected with anoxic pond (4) by surge pump (14); Described anoxic pond (4) built-in agitator (10); The top of one-level contact Aerobic Pond (5), Secondary contact Aerobic Pond (6) is provided with aerating system (9), and is provided with 3 D elastic filler (8) in one-level contact Aerobic Pond (5), Secondary contact Aerobic Pond (6); The side of described settling tank (7) is provided with water purification rising pipe, is provided with mud discharging pipe bottom it.
2. buried catalytic oxidation A/O process spent water treatment unit as claimed in claim 1, is characterized in that: the mud discharging pipe of settling tank (7) is connected with described anoxic pond (4) by sludge reflux pump (12); Anoxic pond (4) is connected with described Secondary contact Aerobic Pond (6) by internal circulation pump (11).
3. buried catalytic oxidation A/O process spent water treatment unit as claimed in claim 1 or 2, it is characterized in that: in described integral type catalytic oxidation A/O reactor (15), the bottom of anoxic pond (4) to contact Aerobic Pond (5) by water outlet bottom with one-level is communicated with, the top of one-level contact Aerobic Pond (5) connects the bottom of Secondary contact Aerobic Pond (6) by pipeline, the top of Secondary contact Aerobic Pond (6) connects the bottom of settling tank (7) by pipeline, the top of settling tank (7) arranges water purification rising pipe.
4. buried catalytic oxidation A/O process spent water treatment unit as claimed in claim 1 or 2, is characterized in that: described aerating system (9) external air pump (16).
5. buried catalytic oxidation A/O process spent water treatment unit as claimed in claim 1 or 2, is characterized in that: the mud discharging pipe of described preliminary sedimentation tank (1), the mud discharging pipe of settling tank (7) are equipped with control valve.
6. buried catalytic oxidation A/O process spent water treatment unit as claimed in claim 1 or 2, is characterized in that: the pipeline of described lift pump (13), surge pump (14), internal circulation pump (11), sludge reflux pump (12) both sides is equipped with control valve.
CN201520600216.1U 2015-08-11 2015-08-11 Bury formula catalytic oxidation AO technology sewage treatment plant Active CN204874023U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110066831A (en) * 2019-03-13 2019-07-30 杭州电子科技大学 The quick natural pond method processed of kitchen garbage
CN110526398A (en) * 2019-08-27 2019-12-03 南京环保产业创新中心有限公司 A kind of micropollutant water treatment reactor and its method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110066831A (en) * 2019-03-13 2019-07-30 杭州电子科技大学 The quick natural pond method processed of kitchen garbage
CN110526398A (en) * 2019-08-27 2019-12-03 南京环保产业创新中心有限公司 A kind of micropollutant water treatment reactor and its method
CN110526398B (en) * 2019-08-27 2022-03-08 南京环保产业创新中心有限公司 Micro-polluted water treatment reactor and method thereof

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