CN108996814A - A kind of municipal sewage and rainwater combined treatment process - Google Patents

A kind of municipal sewage and rainwater combined treatment process Download PDF

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Publication number
CN108996814A
CN108996814A CN201810799124.9A CN201810799124A CN108996814A CN 108996814 A CN108996814 A CN 108996814A CN 201810799124 A CN201810799124 A CN 201810799124A CN 108996814 A CN108996814 A CN 108996814A
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China
Prior art keywords
municipal sewage
sewage
water
pond
rainwater
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CN201810799124.9A
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Chinese (zh)
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CN108996814B (en
Inventor
曹翔
武涛
胡志强
王聪
王怡
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Jiangsu Australian Eco Garden Ltd By Share Ltd
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Jiangsu Australian Eco Garden Ltd By Share Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultra-violet light
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/001Runoff or storm water
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/005Combined electrochemical biological processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/34Biological treatment of water, waste water, or sewage characterised by the microorganisms used

Abstract

The present invention devises a kind of municipal sewage and rainwater combined treatment process, and structure is " pre-treatment pond+artificial swamp ".Multipoint water feeding is arranged in the feature big according to municipal sewage, storm runoff difference, the technique, guarantees the reasonable processing of municipal sewage and rainwater.Automatically the municipal sewage of high pollution is collected in pre-treatment pond, high concentration sewage water is handled using A-B method, pollutant concentration is greatly lowered, and in wetland bed preceding setting rainwater pretreatment unit, enters wetland bed advanced treating after rainwater is pre-processed precipitating removal particulate form pollutant.Wherein, photoresponse soil layer is set in the net processing of ecology filter, is comprising black earth, containing Titanium slag;Wherein the setting of the 5th purifying area receives sunlight irradiation or setting ultraviolet lamp is irradiated on system upper layer, and the sewage that microelement is added enters the region can act on the Regional Synergetic, significantly improve into artificial wet land water quality, improve water treatment efficiency.

Description

A kind of municipal sewage and rainwater combined treatment process
Technical field
The present invention relates to sewage treatment field, a kind of municipal sewage and rainwater combined treatment process are related in particular to.
Background technique
As the improvement of people's living standards, having higher requirement to quality of the life, many problems are brought therewith, Wherein, quantity of wastewater effluent is increasing year by year, but treating capacity is extremely limited, and most area sanitary sewage is below standard to be just discharged into Natural water, black smellyization of city river is serious, causes seriously to pollute to periphery surface water and groundwater, meanwhile, after urbanization, Mankind's activity generates and the pollutant of discharge increased significantly, the type even more complex multiplicity of pollutant.Under urban surface is waterproof The polluter (sand grain object, nitrogen and phosphorus element, heavy metal, organic pollutant etc.) that pad face is accumulated in fine day, in rainfall And city overland runoff pollution of area source is just formd under the washing away of rainwash, conveying effect, rain is transferred into runoff Water drainage pipeline makes receiving water body water quality deterioration.Research both domestic and external has shown that city overland runoff, which has become, is only second to agricultural The second largest water body non point source of pollution of runoff, and the second largest city water environment in addition to city domestic sewage and industrial wastewater Pollution sources.
Summary of the invention
The purpose of the present invention is to provide one kind, and the treatment process of municipal sewage and contaminated rain water can be effectively treated, The degradation treatment of pollutant is mainly carried out using a variety of biochemical processing process and photocatalysis mode, this method is directed to current city City's sewage, rainwater runoff treatment low SI, the increasingly serious problem of pollution of area source, exploring one can efficiently locate The Ecological Disposal technique of municipal sewage and contaminated rain water is managed, realizes that municipal sewage is effectively treated, reaches sewage purification and safety row It puts.
Another object of the present invention is that providing one kind effectively improves sewage treating efficiency, reduces the processing work of river pollution Skill, technique construction is low with operating cost, and operation and maintenance are easy, while can be effectively reduced dirty in municipal sewage and rainwater Object concentration is contaminated, pollution sources concentration is reduced, meanwhile, using riverbank processing technique circular treatment, reduce the pollutant in river water Concentration, and then realize the purification of urban river water body.
To achieve the goals above, the present invention uses following technical measures:
A kind of municipal sewage and rainwater combined treatment process comprising following steps:
1. collecting municipal sewage: municipal sewage is collected by collecting pipe network, and the municipal sewage after collection is passed through tune Pond is saved, water quality, runoff investigation are carried out;
2. septic tank is handled: conditioning tank water outlet being passed through in septic tank and is handled, has macromolecular under anaerobic The hydrolysis of machine object reduces water outlet COD;
The processing of 3.A-B method: septic tank effluent is passed through in A-B method processing pond, and microorganism concn is high in the pond A, by biology After absorption, supernatant enters the pond B and is handled, and Physical entrapment is realized after handling by A-B method, microbial biochemical acts on, height Most of colloid and dissolved organic matter in effect removal sewage;
4. the net processing of ecology filter: the pond B supernatant enters ecology and filters net system processing, including system and should be set to outside system The water inlet pipe and outlet pipe of side, the system partitioning are multiple independent purifying areas, and the first purifying area is provided with cobblestone and sand Ground mass matter;Second purifying area is provided with zeolite, activated carbon substrate;Third purifying area is provided with polyester fiber cotton microbial matrices With polyethylene hollow sphere microbial matrices;4th purifying area is provided with volcanic ash, medical stone matrix;The setting of 5th purifying area There is photoresponse soil layer.The photoresponse soil layer is comprising black earth, containing Titanium slag;Wherein the 5th purifying area is arranged on system upper layer, Receive sunlight irradiation or setting ultraviolet lamp is irradiated;
5. artificial wetland treatment;
6. the setting bypass inlet channel between artificial wet land system and ecology filter net system, is passed through bypass water inlet for rainwater Canal enters drop system afterwards, and then enters the 5th purifying area, finally enters artificial wetland treatment.
Further, it according to the discharge amount of municipal sewage in treatment region, is connected, is established dirty using the pvc pipe of different size Water collection pipe net.Sewage passes through in water inlet manifold trace gather after collecting introduces grid pond.Grid pond is greater than 1cm for filtering, retaining Suspended matter or floating material.Enter conditioning tank by the water outlet of grid equipment, conditioning tank is for settling solid particle in sewage, detesting The dirty water part organic matter of oxygen degradation.Conditioning tank water outlet passes through the mesh screen in the aperture 3mm.
Further, the ultraviolet lamp is opened in rainy weather or night
Further, sewage enters septic tank by pipeline, after being separated by solid-liquid separation by septic tank, at septic tank bottom The solid content of accumulation is delivered to solid grinding device by slag-drip opening and sludge pump and is crushed.And it is upper at the top of septic tank Clear liquid is delivered to A-B method processing pond through elevator pump after catch basin and is handled.
Further, enter A sections of adsorption tanks with the mixed waste water of sanitary sewage, sedimentation basin is entered after adsorption treatment 1, sedimentation basin supernatant enters B sections of biochemistry pools and is handled, and B sections of biochemistry pool water outlets enter sedimentation basin 2, sedimentation basin standard water discharge Discharge;
Further, containing black earth, containing Titanium slag in the photoresponse soil layer, wherein black soil quality number is 80-90%, Mass fraction containing Titanium slag is 5-15%, and surplus is vegetable fertilizer;
Further, planting plants in the photoresponse soil layer, rate of vegetation is less than 20%;
Further, microelement is added in the pond A, the microelement includes copper, rare earth, nickel, manganese, iron and carbon, with matter On the basis of amount, rare earth element dosage 10-15%, copper dosage are 13-26%, nickel dosage is 4-8%, manganese dosage be 9-15%, Iron 20-25, surplus are carbon;
Further, rare earth is at least one of lanthanum, cerium, scandium, the chlorate of praseodymium, sulfate or its oxide;It is described Copper, nickel, manganese, iron are its simple substance or salt, and the salt is at least one of chlorate, sulfate or nitrate;
Further, it is baffling setting that ecology, which filters water (flow) direction between multiple independent purifying areas in net system,;
Reflux unit is set between artificial wetland effluent mouth and drop system, is based on the determination of artificial wetland effluent water quality No to flow back, when water quality reaches discharge standard, stopping reflux, when water quality is not up to discharge standard, unlatching reflux unit is carried out Reflow treatment further decreases pollutant concentration in water body by plant, photocatalysis;
Compared with prior art, the invention has the characteristics that:
1) using septic tank and A-B method combination processing, quickly and pollutant concentration in sewage is greatly lowered, greatly mentions High treatment effeciency, has saved operating cost;
2) microelement is added in A sections of adsorption tanks, under the action of the elements such as rare earth, nickel, manganese, microorganism exocytosis Object dramatically increases, and obviously reinforces the suction-operated of pollutant, and agglomerating effect significantly improves, and substantially increases microorganism to dirt The suction-operated of object is contaminated, meanwhile, the addition of iron, carbon forms a large amount of small batteries, while degradation to pollutant, Improve the effect of settling of microorganism;Contain trace rare-earth element in the sewage for filtering net system processing into ecology, therefore, into When entering five purifying area containing titanium, play the role of further concerted catalysis to it;
3) titanium-containing waste residues are taken full advantage of, it is creative that its catalytic action is used for wastewater treatment, so that a large amount of waste residues obtain With waste utilization.
4) present invention have very strong terrain adaptability and flexibility, i.e., between each processing unit connection type can according into The design parameters flexible choices such as water pollution load, effluent quality and wetland unit area will can also cover more according to the actual situation Artificial wetland combination system is freely combined according to landform with parallel form, is suitable for different terrain, is met the pollution of different waters Process demand, the scope of application is wider, has a good application prospect.
Detailed description of the invention
Fig. 1 is municipal sewage and rainwater combined treatment process schematic diagram.
Specific embodiment
Embodiment 1:
A kind of municipal sewage and rainwater combined treatment process in the present embodiment, as shown in Figure 1, successively include collect pipe network, Septic tank processing, the processing of A-B method, the net processing of ecology filter, artificial wetland treatment process, the specific steps are as follows:
1. collecting municipal sewage: municipal sewage is collected by collecting pipe network, and the municipal sewage after collection is passed through tune Pond is saved, water quality, runoff investigation are carried out, the municipal sewage COD concentration is 1300mg/L, ammonia nitrogen concentration 120mg/L, total nitrogen For 150mg/L;
2. septic tank is handled: conditioning tank water outlet being passed through in septic tank and is handled, has macromolecular under anaerobic The hydrolysis of machine object reduces water outlet COD;
The processing of 3.A-B method: septic tank effluent is passed through in A-B method processing pond, and microorganism concn is high in the pond A, by biology After absorption, supernatant enters the pond B and is handled, and Physical entrapment is realized after handling by A-B method, microbial biochemical acts on, height Most of colloid and dissolved organic matter in effect removal sewage, wherein microelement is added in the pond A, the microelement includes Copper, rare earth, nickel, manganese, iron and carbon, on the basis of quality, rare earth element dosage 10%, copper dosage are 15%, nickel dosage is 6%, manganese dosage is 10%, iron 20%, and surplus is carbon, and the iron is simple substance, and carbon is active carbon, and rare earth, copper, nickel and manganese are Its chlorate;
4. the net processing of ecology filter: the pond B supernatant enters ecology and filters net system processing, including system and should be set to outside system The water inlet pipe and outlet pipe of side, the system partitioning are multiple independent purifying areas, and the first purifying area is provided with cobblestone and sand Ground mass matter;Second purifying area is provided with zeolite, activated carbon substrate;Third purifying area is provided with polyester fiber cotton microbial matrices With polyethylene hollow sphere microbial matrices;4th purifying area is provided with volcanic ash, medical stone matrix;The setting of 5th purifying area There is photoresponse soil layer.The photoresponse soil layer is comprising black earth, containing Titanium slag;Wherein the 5th purifying area is arranged on system upper layer, Receive sunlight irradiation or setting ultraviolet lamp is irradiated;The ultraviolet lamp is opened in rainy weather or night;
5. artificial wetland treatment;
6. the setting bypass inlet channel between artificial wet land system and ecology filter net system, is passed through bypass water inlet for rainwater Canal is passed through drop system, and then enters artificial swamp.
Embodiment 2:
On the basis of embodiment 1, the photoresponse soil layer includes black earth, contains Titanium slag, and wherein black soil quality number is 80%, mass fraction containing Titanium slag is 15%, and surplus is vegetable fertilizer.
Embodiment 3:
On the basis of embodiment 1, the photoresponse soil layer is comprising black earth, contains Titanium slag, wherein black soil quality number It is 85%, mass fraction containing Titanium slag is 9%, and surplus is vegetable fertilizer.
Embodiment 4:
On the basis of embodiment 1, the photoresponse soil layer is comprising black earth, contains Titanium slag, wherein black soil quality number It is 90%, mass fraction containing Titanium slag is 5%, and surplus is vegetable fertilizer.
Embodiment 5:
On the basis of embodiment 1, microelement is added in the pond A, the microelement includes copper, rare earth, nickel, manganese, iron And carbon, on the basis of quality, rare earth element dosage 12%, copper dosage are 26%, nickel dosage is 4%, manganese dosage is 12%, Iron 22%, surplus are carbon;The iron is simple substance, and carbon is active carbon, and rare earth, copper, nickel and manganese are its chlorate.
Embodiment 6:
On the basis of embodiment 1, microelement is added in the pond A, the microelement includes copper, rare earth, nickel, manganese, iron And carbon, on the basis of quality, rare earth element dosage 15%, copper dosage are 20%, nickel dosage is 4%, manganese dosage is 15%, Iron 25%, surplus are carbon;The iron is simple substance, and carbon is active carbon, and rare earth, copper, nickel and manganese are its chlorate.
After running according to above-described embodiment, good operational effect is obtained.Through detecting, microelement is added in the pond A Afterwards, A sections of effect of settling are substantially better than common process, and due to the addition of active carbon, mud granule is significantly increased, and adsorption effect is bright It is aobvious to improve.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to preferred embodiment to this Invention is described in detail, and those skilled in the art can modify or wait to technical solution of the present invention With replacement, without departing from the objective and range of technical solution of the present invention, it should all cover and work as in scope of the presently claimed invention In.

Claims (8)

1. a kind of municipal sewage and rainwater combined treatment process, characterized by the following steps:
1) collect municipal sewage: municipal sewage is collected by collecting pipe network, and the municipal sewage after collection is passed through conditioning tank, Carry out water quality, runoff investigation;
2) septic tank is handled: conditioning tank water outlet being passed through in septic tank and is handled, makes larger molecular organics under anaerobic Hydrolysis reduces water outlet COD;
3) A-B method is handled: septic tank effluent being passed through in A-B method processing pond, microorganism concn is high in the pond A, by biological adsorption Afterwards, supernatant enters the pond B and is handled, and Physical entrapment, microbial biochemical effect are realized after handling by A-B method, is efficiently gone Except colloid most of in sewage and dissolved organic matter;
4) the net processing of ecology filter: the pond B supernatant enters ecology and filters net system processing, should including system and on the outside of system into Water pipe and outlet pipe, the system partitioning are multiple independent purifying areas, and the first purifying area is provided with cobblestone and sandstone matrix; Second purifying area is provided with zeolite, activated carbon substrate;Third purifying area is provided with polyester fiber cotton microbial matrices and polyethylene Hollow sphere microbial matrices;4th purifying area is provided with volcanic ash, medical stone matrix;5th purifying area is provided with photoresponse soil Layer, the photoresponse soil layer are comprising black earth, containing Titanium slag;Wherein the 5th purifying area is arranged on system upper layer, receives sunlight Irradiation or setting ultraviolet lamp are irradiated;
5) artificial wetland treatment;
6) the setting bypass inlet channel between artificial wet land system and ecology filter net system, is passed through the bypass inlet channel for rainwater, after Into drop system, and then enter the 5th purifying area, finally enters artificial wetland treatment.
2. technique as described in claim 1, which is characterized in that according to the discharge amount of municipal sewage in treatment region, using difference The pvc pipe of specification connects, and establishes sewage collecting pipe network, and municipal sewage passes through in water inlet manifold trace gather after collecting introduces grid pond, Grid pond is used to filter, retains the suspended matter or floating material for being greater than 1cm, enters conditioning tank, conditioning tank by the water outlet of grid equipment For settling solid particle in sewage, anaerobic degradation dirt water part organic matter, conditioning tank water outlet passes through the mesh screen in the aperture 3mm.
3. technique as described in claim 1, which is characterized in that municipal sewage enters A sections of adsorption tanks, enters after adsorption treatment Sedimentation basin 1, sedimentation basin supernatant enter B sections of biochemistry pools and are handled, and B sections of biochemistry pool water outlets enter sedimentation basin 2, sedimentation basin water outlet Qualified discharge.
4. technique as described in claim 1, which is characterized in that add microelement in the pond A, the microelement include copper, Rare earth, nickel, manganese, iron and carbon, on the basis of quality, rare-earth usage 10-15%, copper dosage are 13-26%, nickel dosage is 4- 8%, manganese dosage is 9-15%, iron 20-25%, and surplus is carbon.
5. technique as claimed in claim 4, which is characterized in that rare earth is lanthanum, cerium, scandium, the chlorate of praseodymium, sulfate or its oxygen At least one of compound;The copper, nickel, manganese, iron are its salt, the salt be in chlorate, sulfate or nitrate extremely Few one kind.
6. technique as described in claim 1, which is characterized in that containing black earth, containing Titanium slag in the photoresponse soil layer, wherein black Native mass fraction is 80-90%, and mass fraction containing Titanium slag is 5-15%, and surplus is vegetable fertilizer.
7. technique as described in claim 1, which is characterized in that planting plants in the photoresponse soil layer, rate of vegetation are small In 20%.
8. technique as described in claim 1, which is characterized in that open the ultraviolet lamp in rainy weather or night.
CN201810799124.9A 2018-07-19 2018-07-19 Urban sewage and rainwater combined treatment process Active CN108996814B (en)

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PCT/CN2019/078637 WO2020015374A1 (en) 2018-07-19 2019-03-19 Combined treatment process for municipal sewage and rainwater

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CN207193042U (en) * 2017-07-13 2018-04-06 惠州大隆基环境治理有限公司 A kind of integrated sewage treating apparatus
CN207062108U (en) * 2017-07-17 2018-03-02 西安振华智能科技有限公司 Domestic sewage processing system
CN207511925U (en) * 2017-11-17 2018-06-19 江苏城市职业学院 A kind of sewage disposal system
CN108217868A (en) * 2017-12-07 2018-06-29 吴亚琴 A kind of preparation method of high alga-killing rate composite algicide
CN108083426A (en) * 2017-12-20 2018-05-29 西安建筑科技大学 A kind of rapid infiltration system for initial rainwater efficient process
CN108249667A (en) * 2018-03-20 2018-07-06 武汉轻工大学 A kind of processing equipment of wastewater from chemical industry

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020015374A1 (en) * 2018-07-19 2020-01-23 江苏澳洋生态园林股份有限公司 Combined treatment process for municipal sewage and rainwater
WO2020015373A1 (en) * 2018-07-19 2020-01-23 江苏澳洋生态园林股份有限公司 Municipal sewage and rainwater combined treatment device

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