CN103043794A - Sewage treatment method based on municipal sewage pipeline reinforcement and sewage recycling - Google Patents

Sewage treatment method based on municipal sewage pipeline reinforcement and sewage recycling Download PDF

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Publication number
CN103043794A
CN103043794A CN2013100272514A CN201310027251A CN103043794A CN 103043794 A CN103043794 A CN 103043794A CN 2013100272514 A CN2013100272514 A CN 2013100272514A CN 201310027251 A CN201310027251 A CN 201310027251A CN 103043794 A CN103043794 A CN 103043794A
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China
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sewage
treatment method
pipeline
recycling
water treatment
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CN2013100272514A
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马军
宋阳
刘增贺
李欣
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Harbin Institute of Technology
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Harbin Institute of Technology
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Abstract

The invention discloses a sewage treatment method based on municipal sewage pipeline reinforcement and sewage recycling, relating to a sewage treatment method. According to the invention, the problems of the existing municipal sewage treatment method, such as high treatment cost, low treatment efficiency in winter, and large recycled water pipeline investment, are solved The sewage treatment method based on the municipal sewage pipeline reinforcement and the sewage recycling comprises the following steps of: reflowing sludge in a lifting pump station to the lifting pump station by using a lifting pump and carrying out sludge seeding between sewage pipelines of the lifting pump station and the former lifting pump station, and carrying out sewage sludge digestion anaerobic reaction by using a pipeline between two adjacent lifting pump stations as an anaerobic reactor. The sewage treatment method disclosed by the invention is used for treating municipal sewage.

Description

A kind of sewage water treatment method based on urban sewage pipe reinforcement and sewage recycling
Technical field
The present invention relates to a kind of sewage water treatment method based on urban sewage pipe reinforcement and sewage recycling.
Background technology
In recent years, Urbanization in China is constantly accelerated, municipal effluent, trade effluent etc. pour in the Sewage Plant, cause the load of Sewage Plant to continue to increase, because the original processing power of Sewage Plant is limited, it is stricter to add effluent index, causes Sewage Plant can't bear the heavy load, and sludge problem also is difficult to process.Simultaneously, the part of contaminated water pipeline is long neglected and in disrepair, stops up seriously, and drainability is limited.
There is following problem in existing waterside town city pollution discharge treatment method: 1, because the load of Sewage Plant becomes large, and a large amount of greenhouse gases, for example the output of carbonic acid gas, oxynitride strengthens, and environment has been caused destruction; 2, a large amount of waste water enters sewage work, because it is large to process the change of load, causes the energy consumption of water factory's each side, and also corresponding change is large to comprise power consumption, dosage etc.; 3, the annual most of the time temperature of north cold area is lower, need to carry out Insulation when sewage disposal, and cost height and water treatment efficiency are low; 4, northern most of city belongs to the lack of water area, and some areas add intermediate water pipeline in the sewer line that has built up, and makes sewage carry out reuse; For built pipe network, transform not only very difficultly but also cost is very high, in the middle water of simultaneously reuse a large amount of microorganisms and bacterium are arranged, strengthened so again the cost of sterilizing; 5, along with the increase of Sewage Plant sewage load, the output of mud also further increases, and the sludge treatment expense is higher.
To sum up, existing method for the treatment of city waste water have that processing cost is high, low and the problem that the investment of reuse water pipeline is large of processing efficiency in winter.
Summary of the invention
The present invention exists for solving existing method for the treatment of city waste water that processing cost is high, low and the problem that the investment of reuse water pipeline is large of processing efficiency in winter, and then provides a kind of and strengthen and the sewage water treatment method of sewage recycling based on urban sewage pipe.
Sewage water treatment method based on urban sewage pipe reinforcement and sewage recycling of the present invention is realized according to following steps:
The sludge reflux that will promote in the pumping plant by lift pump carries out sludge seeding between the last lifting pumping plant sewer line of above-mentioned lifting pumping plant and above-mentioned lifting pumping plant, utilize the pipeline between adjacent two lifting pumping plants to carry out the sludge digestion anaerobic reaction as anaerobic biological reactor.
The invention has the beneficial effects as follows: sewage water treatment method of the present invention utilizes the pipeline between adjacent two lifting pumping plants to carry out the sludge digestion anaerobic reaction as anaerobic biological reactor, namely utilize existing sewer line that sewage is carried out anaerobic hydrolysis, change existing sewer line and only had the function of transferring, not only make sewage obtain biological treatment, and mud has obtained the slaking decrement in anaerobic environment, the mud of terminal water factory has also obtained decrement, thereby improved detergent power, change existing sewer line and only had the function of transferring, greatly reduce the output of mud, therefore greatly reduce the sludge treatment expense; Sewage water treatment method of the present invention carries out sewage disposal with the anaerobism mode, has not only reduced energy consumption, has reduced simultaneously the discharging of greenhouse gases carbonic acid gas and oxynitride, has improved simultaneously processing efficiency, has the effect of energy-saving and emission-reduction.
Description of drawings
Fig. 1 be utilize of the present invention based on urban sewage pipe strengthen and the system chart of the municipal sewage treatment of the sewage water treatment method of sewage recycling (long and short dash line represents membrane bioreactor purification water outlet among the figure, two dot chain line represents aerating pipelines, dotted line represents the sludge reflux pipeline, solid line represents the municipal effluent pipeline), Fig. 2 is the system chart of existing municipal sewage treatment.
Embodiment
Embodiment one: as shown in Figure 1, the sewage water treatment method step based on urban sewage pipe reinforcement and sewage recycling of present embodiment is as follows:
The sludge reflux that will promote in the pumping plant by lift pump carries out sludge seeding between the last lifting pumping plant sewer line of above-mentioned lifting pumping plant and above-mentioned lifting pumping plant, utilize the pipeline between adjacent two lifting pumping plants to carry out the sludge digestion anaerobic reaction as anaerobic biological reactor.
The present invention takes full advantage of the space that does not have in the sewer line to utilize sewage is carried out anaerobic hydrolysis, improved detergent power, changed that sewer line only has the function of transferring on the traditional sense, simultaneously in each strengthening point, for example promote and add membrane bioreactor (MBR) in pumping plant or the inspection chamber or BAF is further processed sewage, water outlet can be back to carries out circular treatment in the sewer line, overcome the high difficult problem of terminal water factory load.Membrane bioreactor (MBR) automatization intensity is high, and floor space is little, is easy to transform in promoting pumping plant.
The sludge reflux that promotes in the pumping plant is carried out sludge seeding in the front end sewer line, overcome urban sewage pipe and only transferred the problem that function does not have function of biological purification, be not only sewage and obtained biological treatment, and mud has obtained the slaking decrement in anaerobic environment, and the mud of terminal water factory has also obtained decrement.
Utilize to promote the pumping plant dispersion treatment, when using membrane bioreactor (MBR) to carry out sewage disposal, can energy be reclaimed with heat pump, carry out local heat supply, also can be as the supplementary feed of central heating in winter.The simultaneously water outlet of membrane bioreactor (MBR) can not corroded heat pump, has so solved the problem of heat pump pre-treatment difficulty yet.
Embodiment two: present embodiment is carried out aeration between adjacent two inspection chambers of sewer line.So operation forms the environment that anaerobic-aerobic alternately occurs, and the denitrification reaction of nitrification and denitrification and the reaction of dephosphorization occur in pipeline.Other is identical with embodiment one.
Can so that ducted settling stirs, enter in the water collecting basin that promotes pumping plant when carrying out aeration aerating in the sewer line.
Embodiment three: the present embodiment aeration mode adopts intermittent aeration and lasting aeration dual mode; The aeration source of the gas is selected pure oxygen or air.So operation forms the environment that anaerobic-aerobic replaces, and the denitrification reaction of nitrification and denitrification and the reaction of dephosphorization occur in pipeline.Other is identical with embodiment two.
It mainly is anaerobic condition in the sewer line, the present invention not only utilizes anaerobic condition to carry out the pre-treatment of sewage, also can be in sludge reflux, in sewer line, carry out the oxygenation at intermittence with pump, so just can form the environment that anaerobic-aerobic replaces, the reaction of nitrification and denitrification and the reaction of dephosphorization occur in pipeline, can so that ducted settling stirs, prevent that mud from depositing in pipeline when inflating in the sewer line with pump.
Embodiment four: present embodiment arranges the membrane bioreactor of micro-filtration membrane module composition, membrane bioreactor or the BAF that hyperfiltration membrane assembly forms at the water outlet of sewage lifting pump station, dig a well below the membrane bioreactor of microfiltration membrane or hyperfiltration membrane assembly composition, well depth is 4~20 meters.So operation is carried out reuse by the processing of membrane bioreactor (MBR), and each draining that promotes pumping plant can be used as the urban afforestation water; When carrying out sewage disposal with membrane bioreactor, can the water outlet energy be reclaimed with heat pump, can carry out local heat supply; The water outlet of membrane bioreactor can be back to use the city, is directly used in life or industrial application, reached the purpose of distributing cleansing and recycling, has solved that intermediate water pipeline is difficult to transform and the sewage terminal process is difficult to be back to use the problem in city.Below the membrane bioreactor of microfiltration membrane or hyperfiltration membrane assembly composition, dig a well, the thickened sludge in the membrane bioreactor is carried out anaerobic reaction produce biogas in deep-well, can be used in the factory or the generating outside the factory.Other and embodiment one, two or three identical.
In each lifting pumping plant, membrane bioreactor is installed, is carried out purification and the reuse of sewage, reuse pipeline in the water so just can be installed, carry out the reuse while processing in promoting pumping plant.Each promotes the final outflow water of pumping plant can carry out urban afforestation water, wetland water, landscape water and process water; The terminal Sewage Plant is because load reduction, and the reaction times is elongated, and processing efficiency improves, Energy Intensity Reduction, and water quality is improved simultaneously that resource has also obtained utilization.
Embodiment five: present embodiment is passed through liquid chlorine disinfection to the water outlet of membrane bioreactor or BAF.So operation.Reuse is carried out in processing by BAF, and each promotes the draining of pumping plant can carry out the urban afforestation water; When carrying out sewage disposal with BAF, can energy be reclaimed with heat pump, can carry out local heat supply; The water outlet of BAF can be back to use the city, is directly used in city miscellaneous water or process water, reached the purpose of distributing cleansing and recycling, has solved the problem that the large and sewage terminal process of intermediate water pipeline investment is difficult to be back to use the city.Other is identical with embodiment four.
In each lifting pumping plant BAF is installed, carries out purification and the reuse of sewage, water reuse pipeline in so just can installing carries out the reuse while processing in promoting pumping plant.Each promotes the final outflow water of pumping plant can carry out urban afforestation water, wetland water, landscape water and process water; The terminal Sewage Plant is because load reduction, and the reaction times is elongated, and processing efficiency improves, Energy Intensity Reduction, and water quality is improved simultaneously that resource has also obtained utilization.
Embodiment six: present embodiment is passed through ozonization to the water outlet of membrane bioreactor.So operation can killing microorganism, makes water outlet reach better effect, is used for the higher place of water quality requirement.Other is identical with embodiment four.
Embodiment seven: present embodiment is passed through disinfection by chlorine dioxide to the water outlet of membrane bioreactor.So operation can killing microorganism, makes water outlet reach better effect, is used for the higher place of water quality requirement.Other is identical with embodiment four.
Embodiment eight: present embodiment is passed through disinfection by ultraviolet light to the water outlet of membrane bioreactor.So operation can killing microorganism, makes water outlet reach better effect, is used for the higher place of water quality requirement.Other is identical with embodiment four.
Embodiment nine: present embodiment is sterilized by persulphate to the water outlet of membrane bioreactor.So operation can killing microorganism, makes water outlet reach better effect, is used for the higher place of water quality requirement.Other is identical with embodiment four.
Embodiment ten: present embodiment places sewer line with aeration aerating pipeline and sludge reflux pipeline, along the length of pipe direction a plurality of through holes are set all on aeration aerating pipeline and sludge reflux pipeline, the distance on aeration aerating pipeline and the sludge reflux pipeline between adjacent two through holes equates to arrange.Other is identical with embodiment four.
Principle of work:
The present invention takes full advantage of the space that does not have in the sewer line to utilize sewage is carried out anaerobic hydrolysis, improved detergent power, changed that sewer line only has the function of transferring on the traditional sense, simultaneously in each strengthening point, for example promote and add membrane bioreactor (MBR), sand filter or BAF in pumping plant or the inspection chamber sewage is further processed, water outlet can be back to city miscellaneous water or process water, has overcome the high difficult problem of terminal water factory load.Membrane bioreactor (MBR) automatization intensity is high, and floor space is little, is easy to transform in promoting pumping plant.Below MBR, beat the dark well of 4-20 rice, the thickened sludge among the MBR is carried out anaerobic reaction produce biogas in deep-well, can be used in the factory or generate electricity outside the factory.
The sludge reflux that promotes in the pumping plant is carried out sludge seeding in the front end sewer line, overcome urban sewage pipe and only transferred the problem that function does not have function of biological purification, be not only sewage and obtained biological treatment, and mud has obtained the slaking decrement in anaerobic environment, and the mud of terminal water factory has also obtained decrement.
Utilize to promote the pumping plant dispersion treatment, when using membrane bioreactor (MBR) or BAF to carry out sewage disposal, can energy in the water outlet be reclaimed with heat pump, carry out local heat supply, also can be as the supplementary feed of central heating in winter.The simultaneously water outlet of membrane bioreactor (MBR) or BAF can not corroded heat pump, has so solved the problem of heat pump pre-treatment difficulty yet.

Claims (10)

1. strengthen based on urban sewage pipe and the sewage water treatment method of sewage recycling for one kind, it is characterized in that the sewage water treatment method step of urban sewage pipe reinforcement and sewage recycling is as follows:
The sludge reflux that will promote in the pumping plant by lift pump carries out sludge seeding between the last lifting pumping plant sewer line of above-mentioned lifting pumping plant and above-mentioned lifting pumping plant, utilize the pipeline between adjacent two lifting pumping plants to carry out the reaction of sewage sludge digestion anaerobic as anaerobic biological reactor.
2. the sewage water treatment method based on urban sewage pipe reinforcement and sewage recycling according to claim 1 is characterized in that: carry out aeration aerating between adjacent two inspection chambers of sewer line.
3. the sewage water treatment method based on urban sewage pipe reinforcement and sewage recycling according to claim 2 is characterized in that: aeration mode employing intermittent aeration and lasting aeration dual mode; The aeration source of the gas is selected pure oxygen or air.
4. according to claim 1,2 or 3 described sewage water treatment methods based on urban sewage pipe reinforcement and sewage recycling, it is characterized in that: at the water outlet of sewage lifting pump station the membrane bioreactor of micro-filtration membrane module composition, membrane bioreactor or the BAF that hyperfiltration membrane assembly forms are set, dig a well below the membrane bioreactor of microfiltration membrane or hyperfiltration membrane assembly composition, well depth is 4~20 meters.
5. according to claim 4ly strengthen and the sewage water treatment method of sewage recycling based on urban sewage pipe, it is characterized in that: liquid chlorine disinfection is passed through in the water outlet to membrane bioreactor or BAF.
6. according to claim 4ly strengthen and the sewage water treatment method of sewage recycling based on urban sewage pipe, it is characterized in that: ozonization is passed through in the water outlet to membrane bioreactor.
7. according to claim 4ly strengthen and the sewage water treatment method of sewage recycling based on urban sewage pipe, it is characterized in that: disinfection by chlorine dioxide is passed through in the water outlet to membrane bioreactor.
8. according to claim 4ly strengthen and the sewage water treatment method of sewage recycling based on urban sewage pipe, it is characterized in that: disinfection by ultraviolet light is passed through in the water outlet to membrane bioreactor.
9. according to claim 4ly strengthen and the sewage water treatment method of sewage recycling based on urban sewage pipe, it is characterized in that: the water outlet to membrane bioreactor is sterilized by persulphate.
10. according to claim 4ly strengthen and the sewage water treatment method of sewage recycling based on urban sewage pipe, it is characterized in that: aeration aerating pipeline and sludge reflux pipeline are placed sewer line, along the length of pipe direction a plurality of through holes are set all on aeration aerating pipeline and sludge reflux pipeline, the distance on aeration aerating pipeline and the sludge reflux pipeline between adjacent two through holes equates to arrange.
CN2013100272514A 2013-01-25 2013-01-25 Sewage treatment method based on municipal sewage pipeline reinforcement and sewage recycling Pending CN103043794A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103771668A (en) * 2014-02-26 2014-05-07 华瀚管道***科技有限公司 Sewage distribution treatment system of urban drainage network
CN109513263A (en) * 2018-12-05 2019-03-26 南阳市宣溢环保设备股份有限公司 A kind of urban sewage pipe pretreatment system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2403981A1 (en) * 1977-09-21 1979-04-20 Alsthom Atlantique Partial purificn. of effluents in station - is followed by biological treatment with its own sludge in the outlet pipe
CN2512773Y (en) * 2002-01-11 2002-09-25 金维瑾 Wastewater treatment equipment
CN1557740A (en) * 2004-01-14 2004-12-29 哈尔滨工业大学 Disperse type sewage treatment and recovery utilization method of strengthening city sewage pipeline purifying function
RU2007128753A (en) * 2005-02-01 2009-03-10 Рафаль ЛЮСИНА (PL) SEWAGE TREATMENT PLANT, IN PARTICULAR FOR HOME PURPOSES

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2403981A1 (en) * 1977-09-21 1979-04-20 Alsthom Atlantique Partial purificn. of effluents in station - is followed by biological treatment with its own sludge in the outlet pipe
CN2512773Y (en) * 2002-01-11 2002-09-25 金维瑾 Wastewater treatment equipment
CN1557740A (en) * 2004-01-14 2004-12-29 哈尔滨工业大学 Disperse type sewage treatment and recovery utilization method of strengthening city sewage pipeline purifying function
RU2007128753A (en) * 2005-02-01 2009-03-10 Рафаль ЛЮСИНА (PL) SEWAGE TREATMENT PLANT, IN PARTICULAR FOR HOME PURPOSES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103771668A (en) * 2014-02-26 2014-05-07 华瀚管道***科技有限公司 Sewage distribution treatment system of urban drainage network
CN103771668B (en) * 2014-02-26 2015-10-21 华瀚管道***科技有限公司 A kind of urban drainage pipe network sewage separation treatment system
CN109513263A (en) * 2018-12-05 2019-03-26 南阳市宣溢环保设备股份有限公司 A kind of urban sewage pipe pretreatment system

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Application publication date: 20130417