CN204079710U - Less energy-consumption rural domestic sewage treatment system - Google Patents

Less energy-consumption rural domestic sewage treatment system Download PDF

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Publication number
CN204079710U
CN204079710U CN201420550578.XU CN201420550578U CN204079710U CN 204079710 U CN204079710 U CN 204079710U CN 201420550578 U CN201420550578 U CN 201420550578U CN 204079710 U CN204079710 U CN 204079710U
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China
Prior art keywords
tank
pond
treatment system
less energy
sewage treatment
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Expired - Fee Related
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CN201420550578.XU
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Chinese (zh)
Inventor
陈蕾
刘洋
杨艳
韩艳来
卢乐宁
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JINING SOURCE WATER TREATMENT Co Ltd
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JINING SOURCE WATER TREATMENT Co Ltd
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Abstract

The utility model provides a kind of less energy-consumption rural domestic sewage treatment system, belong to technical field of sewage, it comprises water inlet pipe, water inlet pipe is communicated with by placed in series with clear water reuse tank with grating tank, settling tank, hydrolysis acidification pool, immersion aerobic MBR film reaction pond successively, and inside, immersion aerobic MBR film reaction pond is provided with membrane bioreactor; The outlet at bottom in described settling tank and immersion aerobic MBR film reaction pond is connected with comprehensive adjustment pond respectively by pipeline; Described comprehensive adjustment pond is connected with chemicals dosing plant, the inwall in comprehensive adjustment pond is provided with pH value detection control instrument, the exit end in comprehensive adjustment pond is connected with sludge digestion tank, the top of described sludge digestion tank is connected with gas tank by biogas pipeline, and the bottom of sludge digestion tank is connected with stabilized sludge collecting tank.The utility model utilizes the synergy of Physical, chemical method, biological process, embrane method to process sewage, efficient stable, good surely, reduces the possibility of secondary pollution.

Description

Less energy-consumption rural domestic sewage treatment system
Technical field
The utility model relates to one way of life Sewage treatment systems, specifically a kind of less energy-consumption rural domestic sewage treatment system.
Background technology
It is the one of the main reasons that rural areas in our country water environment situation is day by day serious that domestic sewage in rural areas discharges arbitrarily, as caused principal pollutant P, N of Taihu Lake body eutrophication, wherein 60% and 21.5% all derives from domestic sewage in rural areas.It is estimated, the financial loss that Rural Environmental Problem causes every year is more than hundred billion yuan, and the state of ecological environment in China rural area is troubling.Rural domestic sewage treating device adopts the combination process of " land treatment systems, biological filter, stabilizing sugar, physico-chemical process " mostly both at home and abroad at present, have that energy consumption is high, treatment effect is unstable, secondary pollution, the high deficiency of equipment later period maintenance maintenance cost, be not suitable for the sewage disposal of the economic backward areas such as villages and small towns.
Patent CN 203021408 U discloses a kind of less energy-consumption domestic sewage in rural areas wet land treating system, is made up of pretreatment system and artificial wet land system; It is characterized in that: described pretreatment system comprises the oil trap, anaerobic pond and the equalizing tank that connect with pipeline successively; Described artificial wet land system comprise connect with pipeline successively the first wetland pond, the second wetland pond and the 3rd wetland pond.Although the method adopts the sewage treatment process of less energy-consumption and Environment-Ecosystem, improve the water quality of sewage disposal.But the method has following shortcoming: the sewage after artificial wet land system process contains microorganism, secondary pollution may be caused, and treatment effect is unstable.
Summary of the invention
Technical assignment of the present utility model is for the deficiencies in the prior art, provides that a kind of running cost is low, efficient stable, avoids the less energy-consumption rural domestic sewage treatment system of secondary pollution.
The utility model solves the technical scheme that its technical problem adopts:
Less energy-consumption rural domestic sewage treatment system, comprise the water inlet pipe of collection sanitary sewage, grating tank, settling tank, hydrolysis acidification pool, immersion aerobic MBR film reaction pond and clear water reuse tank, described water inlet pipe is communicated with by placed in series with clear water reuse tank with grating tank, settling tank, hydrolysis acidification pool, immersion aerobic MBR film reaction pond successively, and the water inlet position in settling tank, hydrolysis acidification pool and immersion aerobic MBR film reaction pond reduces successively; The outlet at bottom in described settling tank and immersion aerobic MBR film reaction pond is connected with comprehensive adjustment pond respectively by pipeline, described comprehensive adjustment pond is connected with chemicals dosing plant, the exit end in comprehensive adjustment pond is connected with sludge digestion tank, the top of described sludge digestion tank is connected with gas tank by biogas pipeline, and the bottom of sludge digestion tank is connected with stabilized sludge collecting tank.
Artificial grid is provided with between described grating tank and settling tank.
Described immersion aerobic MBR film reaction pond comprises reaction tank body and is arranged on the membrane bioreactor of reaction tank body interior, and described membrane bioreactor inside is provided with membrane module.
Described immersion aerobic MBR film reaction pond also comprises aerating apparatus, described aerating apparatus is connected with power supply and is arranged on reaction tank body bottom portion, and the aeration outlet position of aerating apparatus faces toward the membrane module of membrane bioreactor.
Membrane module in described membrane bioreactor is hollow-fibre membrane.
Top, described immersion aerobic MBR film reaction pond is connected with clear water reuse tank by pipeline, and this pipeline is also provided with vacuum primingpump.
Pipeline between described immersion aerobic MBR film reaction pond and comprehensive adjustment pond is provided with sludge lifting pump.
Pipeline between described comprehensive adjustment pond and chemicals dosing plant is provided with volume pump.
The inside of described chemicals dosing plant is loaded with sodium hydroxide and hydrochloric acid respectively.
Described sludge digestion tank inside is provided with agitator.
Compared with prior art, the beneficial effect produced is less energy-consumption rural domestic sewage treatment system of the present utility model:
1) the utility model is easy to use, process Posterior circle can not only be carried out to sanitary sewage to utilize, can also to the sludge conditioning in sanitary sewage, in sludge digestion tank, mud is processed further, secondary pollution is caused to avoid mud discharging, the biogas of generation is stored for subsequent use, save energy simultaneously;
2) in use process of the present utility model, sanitary sewage relies on the gravity of self to flow through grating tank successively completely in water inlet pipe, settling tank, hydrolysis acidification pool and immersion aerobic MBR film reaction pond, coarse grain in grating tank removal sewage and insoluble COD, SS, hydrolysis acidification pool is for degrading and being oxidized the organism in sewage, improve the biodegradability of sewage, immersion aerobic MBR film reaction pond then utilizes the efficient crown_interception of membrane module, active sludge is stayed in membrane bioreactor, the microbial population that aerobic bacteria is main body is utilized to degrade to pollutent, finally by vacuum primingpump, the water on top, aerobic for immersion MBR film reaction pond is sucked in clear water reuse tank, have simple to operate, the feature of less energy-consumption,
3) simultaneously, comprehensive adjustment pond is connected to the bottom in settling tank and immersion aerobic MBR film reaction pond by pipeline, and under the cooperation of chemicals dosing plant, regulate the mud from settling tank and immersion aerobic MBR film reaction pond; Be connected to bottom conjunction equalizing tank and go back sludge digestion tank, sewage is after hydrolysis acidification pool, immersion aerobic MBR film reaction pond, sludge digestion tank three layers process, thoroughly can remove COD, the BOD in sewage and residual nitrogen, phosphorus, the mud of generation can not cause secondary pollution again;
4) aerating apparatus bottom immersion aerobic MBR film reaction pond is not only for carrying out aeration to its periphery active sludge, also aeration is carried out to membrane module simultaneously, make mutually to pat between the diaphragm of membrane module by the scouring force produced membrane module aeration, thus shake off to be attached to the calcification mud on fenestra surface, extend the work-ing life of diaphragm while improving membrane flux, reduce running cost.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
In figure, 1, water inlet pipe, 2, grating tank, 3, settling tank, 4, hydrolysis acidification pool, 5, immersion aerobic MBR film reaction pond, 51, membrane bioreactor, 52, aerating apparatus, 6, vacuum primingpump, 7, clear water reuse tank, 8, comprehensive adjustment pond, 9, sludge digestion tank, 10, stabilized sludge collecting tank, 11, gas tank, 12, sludge lifting pump, 13, chemicals dosing plant, 14, artificial grid, 15, agitator.
Embodiment
Below in conjunction with accompanying drawing 1, less energy-consumption rural domestic sewage treatment system of the present utility model is described in detail below.
As shown in Figure 1, less energy-consumption rural domestic sewage treatment system of the present utility model, it comprises the water inlet pipe 1 collecting sanitary sewage, grating tank 2, settling tank 3, hydrolysis acidification pool 4, immersion aerobic MBR film reaction pond 5 and clear water reuse tank 7, described water inlet pipe 1 successively with grating tank 2, settling tank 3, hydrolysis acidification pool 4, immersion aerobic MBR film reaction pond 5 is communicated with by placed in series with clear water reuse tank 7, wherein be provided with artificial grid 14 between grating tank 2 and settling tank 3, the water inlet position of settling tank 3 is than the water inlet position height 3.5m of hydrolysis acidification pool 4, the water inlet position of hydrolysis acidification pool 4 is again than the water inlet position height 2.2m in immersion aerobic MBR film reaction pond 5, described immersion aerobic MBR film reaction pond 5 comprises reaction tank body and is arranged on the membrane bioreactor 51 of reaction tank body interior, described membrane bioreactor 51 inside is provided with membrane module, as preferably, the membrane module in described membrane bioreactor 51 is hollow-fibre membrane, described immersion aerobic MBR film reaction pond 5 also comprises aerating apparatus 52, described aerating apparatus 52 is connected with power supply and is arranged on reaction tank body bottom portion, and the aeration outlet position of aerating apparatus 52 faces toward the membrane module of membrane bioreactor 51, pipeline between described immersion aerobic MBR film reaction pond 5 and clear water reuse tank 7 is provided with vacuum primingpump 6, the outlet at bottom in described settling tank 3 and immersion aerobic MBR film reaction pond 5 is connected with comprehensive adjustment pond 8 respectively by pipeline, and the pipeline between immersion aerobic MBR film reaction pond 5 and comprehensive adjustment pond 8 is provided with sludge lifting pump 12, described comprehensive adjustment pond 8 is connected with chemicals dosing plant 13, as preferably, the inside of described chemicals dosing plant 13 is loaded with sodium hydroxide and hydrochloric acid respectively, pipeline between chemicals dosing plant 13 and comprehensive adjustment pond 8 is provided with volume pump, the exit end in comprehensive adjustment pond 8 is connected with sludge digestion tank 9, described sludge digestion tank 9 inside is provided with agitator 15, and the top of sludge digestion tank 9 is connected with gas tank 11 by biogas pipeline, and the bottom of sludge digestion tank 9 is connected with stabilized sludge collecting tank 10.
To the sanitary sewage that the rural area of population size about 700 people produces, water displacement is that the sewage of 200 L/ people d processes for each person every day, and wastewater influent water quality is: BOD 5be 160 mg/L; COD crbe 310 mg/L; SS is 150 mg/L; NH 3-N is 40 mg/L; PH is 6.
The working process of less energy-consumption rural domestic sewage treatment system of the present utility model is as follows:
1) sanitary sewage enters grating tank 2 through water inlet pipe 1, and grating tank 2 removes the impurity such as coarse grain and insoluble COD, SS in sewage;
2) effluent stream processed through grating tank 2 is through artificial grid 14, artificial grid 14 enters settling tank 3 after being got off by the various sundries blockings such as the weeds in sewage, fiber, hair, plastics bag, suspended substance in sewage to be deposited under gravity bottom settling tank 3 and to flow through pipeline thereupon and enters in comprehensive adjustment pond 8, and the sewage on settling tank 3 top then flows in hydrolysis acidification pool 4;
3) hydrolysis acidification pool 4 is by the organic matter degradation in sewage and oxidation, to improve the biodegradability of sewage;
4) sewage processed through hydrolysis acidification pool 4 enters immersion aerobic MBR film reaction pond 5 subsequently, sewage contacts with membrane bioreactor 51 fully, active sludge retains therein by membrane bioreactor 51, the microbial population that aerobic bacteria is main body is utilized to degrade to pollutent, remove the nitrogen in sewage, the materials such as phosphorus, aerating apparatus 52 is while carry out aeration to the active sludge of immersion aerobic MBR film reaction pond 5 bottom periphery simultaneously, while carry out aeration to the diaphragm of membrane module, by the scouring force produced diaphragm aeration, diaphragm is patted mutually, thus shake off to be attached to the calcification mud on fenestra surface, to ensure the soil removability of membrane bioreactor 51,
5) water on top, aerobic for immersion MBR film reaction pond 5 is sucked as undrinkable water second stage employ in clear water reuse tank 7 through vacuum primingpump 6, the mud bottom aerobic for immersion MBR film reaction pond 5 is sent into comprehensive adjustment pond 8 through sludge lifting pump 12;
6) by comprehensive adjustment pond 8 to from step 2) and 5) in mud carry out acid-basicity detection, and under the booster action of volume pump, the sodium hydroxide in chemicals dosing plant 13 or hydrochloric acid appropriate adding are carried out neutralization to mud in comprehensive adjustment pond 8 and regulate;
7) mud after adjustment is sent in sludge digestion tank 9, start agitator 15, the biogas produced in mud is stored into gas tank 11 and does stand-by power source, finally mud is sent into stabilized sludge collecting tank 10 and carry out consolidated delivery process, in case mud discharging causes secondary pollution.
Effluent quality index after having processed is: BOD 5be 11 mg/L; COD crbe 45 mg/L; SS is 2 mg/L; NH 3-N is 8 mg/L; PH is 8.Stable effluent quality, surplus sludge volume are low, simple to operate.

Claims (10)

1. less energy-consumption rural domestic sewage treatment system, comprise the water inlet pipe of collection sanitary sewage, grating tank, settling tank, hydrolysis acidification pool, immersion aerobic MBR film reaction pond and clear water reuse tank, it is characterized in that, described water inlet pipe is communicated with by placed in series with clear water reuse tank with grating tank, settling tank, hydrolysis acidification pool, immersion aerobic MBR film reaction pond successively, and the water inlet position in settling tank, hydrolysis acidification pool and immersion aerobic MBR film reaction pond reduces successively; The outlet at bottom in described settling tank and immersion aerobic MBR film reaction pond is connected with comprehensive adjustment pond respectively by pipeline, described comprehensive adjustment pond is connected with chemicals dosing plant, the exit end in comprehensive adjustment pond is connected with sludge digestion tank, the top of described sludge digestion tank is connected with gas tank by biogas pipeline, and the bottom of sludge digestion tank is connected with stabilized sludge collecting tank.
2. less energy-consumption rural domestic sewage treatment system according to claim 1, is characterized in that, is provided with artificial grid between described grating tank and settling tank.
3. less energy-consumption rural domestic sewage treatment system according to claim 1 and 2, it is characterized in that, described immersion aerobic MBR film reaction pond comprises reaction tank body and is arranged on the membrane bioreactor of reaction tank body interior, and described membrane bioreactor inside is provided with membrane module.
4. less energy-consumption rural domestic sewage treatment system according to claim 3, it is characterized in that, described immersion aerobic MBR film reaction pond also comprises aerating apparatus, described aerating apparatus is connected with power supply and is arranged on reaction tank body bottom portion, the aeration outlet position of aerating apparatus faces the membrane module of membrane bioreactor.
5. less energy-consumption rural domestic sewage treatment system according to claim 4, is characterized in that, the membrane module in described membrane bioreactor is hollow-fibre membrane.
6. the less energy-consumption rural domestic sewage treatment system according to claim 1 or 2 or 4 or 5, is characterized in that, top, described immersion aerobic MBR film reaction pond is connected with clear water reuse tank by pipeline, and this pipeline is also provided with vacuum primingpump.
7. the less energy-consumption rural domestic sewage treatment system according to claim 1 or 2 or 4 or 5, it is characterized in that, the pipeline between described immersion aerobic MBR film reaction pond and comprehensive adjustment pond is provided with sludge lifting pump.
8. the less energy-consumption rural domestic sewage treatment system according to claim 1 or 2 or 4 or 5, is characterized in that, the pipeline between described comprehensive adjustment pond and chemicals dosing plant is provided with volume pump.
9. the less energy-consumption rural domestic sewage treatment system according to claim 1 or 2 or 4 or 5, it is characterized in that, the inside of described chemicals dosing plant is loaded with sodium hydroxide and hydrochloric acid respectively.
10. the less energy-consumption rural domestic sewage treatment system according to claim 1 or 2 or 4 or 5, it is characterized in that, described sludge digestion tank inside is provided with agitator.
CN201420550578.XU 2014-09-24 2014-09-24 Less energy-consumption rural domestic sewage treatment system Expired - Fee Related CN204079710U (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104609554A (en) * 2015-01-12 2015-05-13 国家电网公司 Purification device and method for reclaiming and reusing breeding wastewater
CN105601037A (en) * 2015-12-29 2016-05-25 太仓弘杉环保科技有限公司 Underground wastewater treatment method and treatment device thereof
CN105693025A (en) * 2016-03-13 2016-06-22 廖海涛 Efficient biomembrane integrated sewage treatment system
CN106365401A (en) * 2016-11-08 2017-02-01 英普(北京)环境科技有限公司 Small-sized excrement and urine wastewater treatment device and method
CN108911401A (en) * 2018-07-24 2018-11-30 安徽电信工程有限责任公司 A kind of energy-efficient processing system of domestic sewage in rural areas
CN110451724A (en) * 2019-08-09 2019-11-15 温州市宏泰市政园林建设有限公司 A kind of sewage disposal system
CN111018112A (en) * 2019-12-31 2020-04-17 山东里能鲁西矿业有限公司 Biological sewage membrane biological treatment system and treatment method
CN113149337A (en) * 2021-03-19 2021-07-23 山东建筑大学 Sewage treatment system suitable for small towns and rural areas
CN114956459A (en) * 2022-05-30 2022-08-30 北京建筑大学 Low-energy-consumption and low-emission biological-ecological treatment system and method for dispersed sewage

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104609554A (en) * 2015-01-12 2015-05-13 国家电网公司 Purification device and method for reclaiming and reusing breeding wastewater
CN105601037A (en) * 2015-12-29 2016-05-25 太仓弘杉环保科技有限公司 Underground wastewater treatment method and treatment device thereof
CN105693025A (en) * 2016-03-13 2016-06-22 廖海涛 Efficient biomembrane integrated sewage treatment system
CN106365401A (en) * 2016-11-08 2017-02-01 英普(北京)环境科技有限公司 Small-sized excrement and urine wastewater treatment device and method
CN108911401A (en) * 2018-07-24 2018-11-30 安徽电信工程有限责任公司 A kind of energy-efficient processing system of domestic sewage in rural areas
CN110451724A (en) * 2019-08-09 2019-11-15 温州市宏泰市政园林建设有限公司 A kind of sewage disposal system
CN111018112A (en) * 2019-12-31 2020-04-17 山东里能鲁西矿业有限公司 Biological sewage membrane biological treatment system and treatment method
CN113149337A (en) * 2021-03-19 2021-07-23 山东建筑大学 Sewage treatment system suitable for small towns and rural areas
CN113149337B (en) * 2021-03-19 2022-11-29 山东建筑大学 Sewage treatment system suitable for small towns and rural areas
CN114956459A (en) * 2022-05-30 2022-08-30 北京建筑大学 Low-energy-consumption and low-emission biological-ecological treatment system and method for dispersed sewage

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Granted publication date: 20150107

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CF01 Termination of patent right due to non-payment of annual fee