CN107117777A - The cellular treatment tank of small modular - Google Patents

The cellular treatment tank of small modular Download PDF

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Publication number
CN107117777A
CN107117777A CN201710493070.9A CN201710493070A CN107117777A CN 107117777 A CN107117777 A CN 107117777A CN 201710493070 A CN201710493070 A CN 201710493070A CN 107117777 A CN107117777 A CN 107117777A
Authority
CN
China
Prior art keywords
module
aerobic
anaerobism
sediment
pretreatment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710493070.9A
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Chinese (zh)
Inventor
王宝良
杨培仁
占逵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Zeheng Environmental Protection Technology Co Ltd
Original Assignee
Henan Zeheng Environmental Protection Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henan Zeheng Environmental Protection Technology Co Ltd filed Critical Henan Zeheng Environmental Protection Technology Co Ltd
Priority to CN201710493070.9A priority Critical patent/CN107117777A/en
Publication of CN107117777A publication Critical patent/CN107117777A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • 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
    • 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
    • C02F3/02Aerobic 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

Abstract

The present invention relates to a kind of cellular treatment tank of small modular, including bottom plate, lower end is fixed on the pretreatment module on bottom plate, anaerobism module, aerobic module and Sediment Module, pretreatment module, anaerobism module, aerobic module and Sediment Module are regular hexagon prefabricated reinforced concrete module, pretreatment module, anaerobism module, aerobic module and Sediment Module composition alveolate texture, pretreatment module and anaerobism module, anaerobism module and aerobic module, aerobic module is connected by overflow pipe respectively with Sediment Module, present invention design one has the cellular treatment tank that multiple regular hexagon processing modules are assemblied to form, each processing module is connected by the overflow pipe with check valve, realize flowing of the sewage between each processing module, reach the purpose to the purified treatment of sewage, built using the method for assembling of prefabricated later stage in advance, the construction period for the treatment of tank can effectively be shortened, simplify building technology, reduce labor intensity, reduce construction cost.

Description

The cellular treatment tank of small modular
Technical field
The present invention relates to technical field of sewage treatment equipment, and in particular to a kind of cellular sewage disposal of small modular Pond.
Background technology
Sewage disposal is one of program that current field of industrial production is frequently necessary to, in particular for various weavings, papermaking, The industries such as printing and dyeing, chemical industry, because wastewater flow rate is big, such as without reliable sewage disposal, then will cause extremely serious to environment Pollution.For current sewage disposal system, pretreatment system, biochemical treatment system, muddy water filtration system three are mainly included It is most of;Pretreatment system is mainly made up of grid filtering ponds, regulating reservoir, for filtering out large granular impurity, and makes sewage quality Keep uniform;Biochemical treatment system is mainly made up of the processing system such as anaerobism, anoxic, aerobic, in the feelings that sewage load is larger Under condition, generally it is made up of anaerobic pond, anoxic pond, Aerobic Pond, it is necessary to add anaerobic bacteria, aerobic bacteria etc. in biochemical treatment tank, Them is reacted with the nitrogen and phosphorus element in sewage, remove rich nutritive material;Muddy water filtration system is then main by air supporting system System, second pond etc. are constituted, and are substantially carried out the physical separation of mud and clear water.It follows that sewage treatment plant is building at present When, it is necessary to build multiple processing ponds, processing pond is reinforced concrete structure mostly, it is necessary to cast-in-site, quantities is larger, takes a lot of work Time-consuming, moreover, existing treatment tank is all square pond mostly, multiple square treatment tanks are taken up an area by pipeline communication Area is larger, low space utilization.
The content of the invention
In summary, in order to overcome the shortcomings of prior art problem, the invention provides a kind of small modular is cellular Treatment tank, it is that design one has the cellular treatment tank that multiple regular hexagon processing modules are assemblied to form, just The processing module of hexagon is prefabricated in advance, and each processing module is connected by the overflow pipe with check valve, realizes sewage each Flowing between individual processing module, reaches the purpose to the purified treatment of sewage, simple in construction, easy to use, using pre- in advance System, the method for later stage assembling are built, and can effectively be shortened the construction period for the treatment of tank, be simplified building technology, reduce labor Fatigue resistance, reduces construction cost.
In order to solve the above technical problems, the technical solution adopted by the present invention is:
A kind of cellular treatment tank of small modular, wherein:Including reinforced concrete floor, pretreatment module, anaerobism mould Block, aerobic module and Sediment Module, pretreatment module lower end, anaerobism module lower end, aerobic module lower end and Sediment Module lower end It is fixed on bottom plate, pretreatment module is fixed in the middle part of bottom plate, anaerobism module, aerobic module and Sediment Module are evenly distributed on Around pretreatment module, pretreatment module, anaerobism module, aerobic module and Sediment Module are the precast reinforced coagulation of regular hexagon Clay model block, pretreatment module, anaerobism module, aerobic module and Sediment Module composition alveolate texture, described pretreatment module Connected respectively by overflow pipe with Sediment Module with aerobic module, aerobic module with anaerobism module, anaerobism module, described pre- place Grid cylinder is provided with reason module, the upper end lodge of grid cylinder is on the top of pretreatment module, described sewage water inlet pipe connection It is provided with grid cylinder and sewage pump, described sewage water inlet pipe in sewage valve, described anaerobism module and is provided with anaerobism filler, Aerobic filler is provided with described aerobic module, described aerobic module bottom is provided with aeration tube, aeration tube and is provided with It is provided with aeration spray head, described aeration tube connection aeration pump, described Sediment Module on clean water overflow pipe, described bottom plate It is provided with the blowdown open-work for corresponding to pretreatment module, anaerobism module, aerobic module and Sediment Module respectively, described blowdown open-work On be provided with blow-off pipe and blowoff valve.
Technical scheme may also is that realization:It is provided with described bottom plate respectively with pre-processing mould Under block, anaerobism module, the groove of aerobic module and the corresponding regular hexagon of Sediment Module, pretreatment module lower end, anaerobism module End, aerobic module lower end and Sediment Module lower end are inserted into regular hexagon groove respectively, and pretreatment module, anaerobism module, Gap between aerobic module and Sediment Module and regular hexagon groove is sealed by Concrete Filled.
Technical scheme may also is that realization:Two anaerobism modules, two are provided with described bottom plate Individual aerobic module and two Sediment Modules, two anaerobism module spliceds are connected on two adjacent sides of pretreatment module, and two are detested Connected between oxygen module by overflow pipe, two aerobic module spliceds are connected on two adjacent sides of pretreatment module, two good Connected between oxygen module by overflow pipe, two Sediment Module splicings are on two adjacent sides of pretreatment module, and two are sunk Connected between the module of shallow lake by overflow pipe, pretreatment module, two anaerobism modules, two aerobic modules and two Sediment Module groups Into alveolate texture.
Technical scheme may also is that realization:Overflow check valve is provided with described overflow pipe.
Technical scheme may also is that realization:Hanger is provided with described aerobic module, it is described Hanger includes beam and fixed with beam and peg vertically downward, and beam lodge is on the top of aerobic module, described peg On its short transverse is provided with multiple aerobic filling balls.
Technical scheme may also is that realization:Set on pipeline between described aeration tube and aeration pump Aeration valve is equipped with, described aeration valve is time control valve.
Beneficial effects of the present invention are:
1st, present invention design one has the cellular treatment tank that multiple regular hexagon processing modules are assemblied to form, positive six side The processing module of shape is prefabricated in advance, and each processing module is connected by the overflow pipe with check valve, realizes sewage at each Manage module between flowing, reach the purpose to the purified treatment of sewage, it is simple in construction, easy to use, using in advance it is prefabricated, after The method of phase assembling is built, and can effectively shorten the construction period for the treatment of tank, simplifies building technology, reduces work strong Degree, reduces construction cost.
2nd, it is corresponding with pretreatment module, anaerobism module, aerobic module and Sediment Module respectively on bottom plate of the invention The groove of regular hexagon, facilitates the positioning of modules when mounted, also, the gap between module and groove is mixed by filling Solidifying soil sealing solidification, so as to prevent leak cross pollution.
3rd, pretreatment module, anaerobism module, aerobic module and Sediment Module of the invention are regular hexagon structure, positive six Side shape structure, facilitates the assembly between module, the stitching portion of modules is without space waste, and space availability ratio is high.
4th, blowdown open-work, blow-off pipe and blowoff valve are provided with bottom plate of the invention, so that easy cleaning is deposited in each The sludge and debris of module bottom, while being also convenient for the cleaning present invention.
5th, two anaerobism modules, two aerobic modules and two Sediment Modules are provided with bottom plate of the invention, so that real Now to sewage Anaerobic Treatment, twice Aerobic Process for Treatment and precipitation process twice twice, make the more thorough of pollutant process in sewage Bottom.
6th, aeration valve is provided with the pipeline between aeration tube of the invention and aeration pump, described aeration valve is controlled for the time Valve processed, timing controlled is aerated the keying of valve, so as to realize that timing is aerated, reaches and oxygen in aerobic module is at regular time and quantity supplied Should.
Brief description of the drawings
Fig. 1 is structural representation of the invention;
Fig. 2 is Fig. 1 of present invention A-A schematic cross-sectional views;
Fig. 3 is Fig. 1 of present invention B-B schematic cross-sectional views;
Fig. 4 is the structural representation of the bottom plate of the present invention.
Bottom plate 1, pretreatment module 2, anaerobism module 3, aerobic module 4, Sediment Module 5, overflow pipe 6, grid cylinder 7, sewage Water inlet pipe 8, sewage pump 9, sewage valve 10, anaerobism filler 11, aeration tube 12, aeration spray head 13, aeration pump 14, clean water overflow pipe 15th, blowdown open-work 16, blow-off pipe 17, blowoff valve 18, groove 19, overflow check valve 20, hanger 21, aerobic filling ball 22, aeration Valve 23.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the cellular treatment tank of a kind of small modular, including armored concrete bottom Plate 1, pretreatment module 2, anaerobism module 3, aerobic module 4 and Sediment Module 5, the described cast-in-site of bottom plate 1 or prefabricated, in advance Processing module 2, anaerobism module 3, aerobic module 4 and Sediment Module 5 are that cross sectional shape is regular hexagon prefabricated reinforced concrete Respectively corresponding with pretreatment module 2, anaerobism module 3, aerobic module 4 and Sediment Module 5 positive six are provided with module, bottom plate 1 The groove 19 of side shape, the lower end of pretreatment module 2, the lower end of anaerobism module 3, the lower end of aerobic module 4 and the lower end of Sediment Module 5 are inserted respectively In regular hexagon groove 19, and pretreatment module 2, anaerobism module 3, aerobic module 4 and Sediment Module 5 and regular hexagon ditch Gap between groove 19 is sealed by Concrete Filled.Two anaerobism modules 3, two aerobic modules 4 and two are provided with bottom plate 1 Individual Sediment Module 5, two anaerobism modules 3 are spliced on two adjacent sides of pretreatment module 2, between two anaerobism modules 3 Connected by overflow pipe 6, two aerobic modules 4 are spliced on two adjacent sides of pretreatment module 2, two aerobic modules 4 Between connected by overflow pipe 6, two Sediment Modules 5 splice on two adjacent sides of pretreatment module 2, two precipitation moulds Connected between block 5 by overflow pipe 6, pretreatment module 2, two anaerobism modules 3, two aerobic modules 4 and two Sediment Modules 5 Constitute alveolate texture, pretreatment module 2 and anaerobism module 3, anaerobism module 3 and aerobic module 4, aerobic module 4 and precipitation mould Block 5 is connected by overflow pipe 6 respectively, and overflow check valve 20 is provided with overflow pipe 6, and the setting of overflow check valve 20 prevents sewage Countercurrently.It is provided with described Sediment Module 5 in clean water overflow pipe 15, pretreatment module 2 and is provided with grid cylinder 7, grid cylinder 7 Upper end lodge is on the top of pretreatment module 2, described the connection grid of sewage water inlet pipe 8 cylinder 7 and sewage pump 9, described sewage It is provided with water inlet pipe 8 in sewage valve 10, described anaerobism module 3 and is provided with anaerobism filler 11, is set in described aerobic module 4 Be equipped with aerobic filler, aerobic module 4 and be provided with hanger 21, described hanger 21 include beam and fixed with beam and it is vertical to Under peg, beam lodge is provided with multiple aerobic fillers on the top of aerobic module 4, described peg along its short transverse Ball 22, the described bottom of aerobic module 4, which is provided with aeration tube 12, aeration tube 12, is provided with aeration spray head 13, described aeration Pipe 12, which is connected, is provided with aeration valve 23, described aeration valve 23 on aeration pump 14, the pipeline between aeration tube 12 and aeration pump 14 For time control valve, it is provided with described bottom plate 1 and corresponds to pretreatment module 2, anaerobism module 3, aerobic module 4 and heavy respectively Blow-off pipe 17 and blowoff valve 18 are provided with the blowdown open-work 16 of shallow lake module 5, described blowdown open-work 16.
In use, sewage enters in grid cylinder 7 through sewage pump 9 and sewage water inlet pipe 8, under the barrier effect of grid cylinder 7, The dirt of larger particles in sewage is blocked in grid cylinder 7, and sewage enters pretreatment module 2 through the hole on grid cylinder 7 Inner chamber, sewage buffer-precipitation in pretreatment module 2, when the sewage highly in pretreatment module 2 reaches pretreatment module 2 with detesting During the height of the overflow pipe 6 between oxygen module 3, sewage enters in anaerobism module 3 from pretreatment module 2, enters in anaerobism module 3 Row anaerobic reaction, anaerobic digestion is carried out to the organic matter in sewage, eliminates the sewage in the organic matter in sewage, anaerobism module 3 When highly reaching the height of overflow pipe 6 between two anaerobism modules 3, sewage enters another inner chamber of anaerobism module 3, further Anaerobic reaction is carried out, again except the organic matter in decontaminated water.
When the sewage highly in anaerobism module 3 reaches the height of the overflow pipe 6 between anaerobism module 3 and aerobic module 4, Sewage after Anaerobic Treatment enters the inner chamber of aerobic module 4, aerobic reaction is carried out in aerobic module 4, except aerobic in decontaminated water Pollutant, the same with anaerobic reaction, aerobic module 4 is also provided with connecting by overflow pipe 6 between two, two aerobic modules 4, right Sewage carries out aerobic reaction twice, makes the more thorough of aerobic contaminant removal.
Sewage after Aerobic Process for Treatment enters in Sediment Module 5 through the overflow pipe 6 between aerobic module 4 and Sediment Module 5 Chamber, is precipitated in the Sediment Module 5, the setting of Sediment Module 5 two, and sewage after precipitating twice, and clean clear water is from clear Water overflow pipe 15 flows out.
Blowdown open-work 16 corresponding with modules, blow-off pipe 17 and blowoff valve 18 are provided with the bottom plate 1 of the present invention, is beaten Blowoff valve 18 is driven, the sludge of modules bottom deposition is discharged from blowdown open-work 16 and blow-off pipe 17.Meanwhile, blowdown open-work 16, The setting of blow-off pipe 17 is also convenient for the cleaning to modules.
The bottom of the aerobic module 4 of the present invention sets aeration tube 12 and aeration spray head 13, passes through aeration pump 14, aeration tube 12 And aeration spray head 13 is passed through air into aerobic module 4, increase oxygen content, accelerate aerobic reaction.
It is noted that above-described embodiment is to the illustrative and not limiting of technical solution of the present invention, art is general The equivalent substitution of logical technical staff or the other modifications made according to prior art, as long as not exceeding technical solution of the present invention Thinking and scope, should be included within interest field of the presently claimed invention.

Claims (6)

1. a kind of cellular treatment tank of small modular, it is characterised in that:Including reinforced concrete floor(1), pretreatment Module(2), anaerobism module(3), aerobic module(4)And Sediment Module(5), pretreatment module(2)Lower end, anaerobism module(3)Under End, aerobic module(4)Lower end and Sediment Module(5)Lower end is fixed on bottom plate(1)On, pretreatment module(2)It is fixed on bottom plate(1) Middle part, anaerobism module(3), aerobic module(4)And Sediment Module(5)It is evenly distributed on pretreatment module(2)Around, pretreatment Module(2), anaerobism module(3), aerobic module(4)And Sediment Module(5)It is regular hexagon prefabricated reinforced concrete module, in advance Processing module(2), anaerobism module(3), aerobic module(4)And Sediment Module(5)Constitute alveolate texture, described pretreatment mould Block(2)With anaerobism module(3), anaerobism module(3)With aerobic module(4), aerobic module(4)With Sediment Module(5)Pass through respectively Overflow pipe(6)Connection, described pretreatment module(2)Inside it is provided with grid cylinder(7), grid cylinder(7)Upper end lodge locating in advance Manage module(2)Top, described sewage water inlet pipe(8)Connect grid cylinder(7)With sewage pump(9), described sewage water inlet pipe (8)On be provided with sewage valve(10), described anaerobism module(3)Inside it is provided with anaerobism filler(11), described aerobic module(4) Inside it is provided with aerobic filler, described aerobic module(4)Bottom is provided with aeration tube(12), aeration tube(12)On be provided with aeration Shower nozzle(13), described aeration tube(12)Connect aeration pump(14), described Sediment Module(5)On be provided with clean water overflow pipe (15), described bottom plate(1)On be provided with respectively correspond to pretreatment module(2), anaerobism module(3), aerobic module(4)And precipitation Module(5)Blowdown open-work(16), described blowdown open-work(16)On be provided with blow-off pipe(17)And blowoff valve(18).
2. the cellular treatment tank of small modular according to claim 1, it is characterised in that:Described bottom plate(1) On be provided with respectively with pretreatment module(2), anaerobism module(3), aerobic module(4)And Sediment Module(5)Corresponding positive six side The groove of shape(19), pretreatment module(2)Lower end, anaerobism module(3)Lower end, aerobic module(4)Lower end and Sediment Module(5)Under End is inserted into regular hexagon groove respectively(19)It is interior, and pretreatment module(2), anaerobism module(3), aerobic module(4)And precipitation Module(5)With regular hexagon groove(19)Between gap sealed by Concrete Filled.
3. the cellular treatment tank of small modular according to claim 1, it is characterised in that:Described bottom plate(1) On be provided with two anaerobism modules(3), two aerobic modules(4)And two Sediment Modules(5), two anaerobism modules(3)Splicing In pretreatment module(2)Two adjacent sides on, two anaerobism modules(3)Between pass through overflow pipe(6)Connection, two aerobic Module(4)Splicing is in pretreatment module(2)Two adjacent sides on, two aerobic modules(4)Between pass through overflow pipe(6)Even It is logical, two Sediment Modules(5)Splicing is in pretreatment module(2)Two adjacent sides on, two Sediment Modules(5)Between pass through Overflow pipe(6)Connection, pretreatment module(2), two anaerobism modules(3), two aerobic modules(4)And two Sediment Modules(5) Constitute alveolate texture.
4. the cellular treatment tank of small modular according to claim 3, it is characterised in that:Described overflow pipe (6)On be provided with overflow check valve(20).
5. the cellular treatment tank of small modular according to claim 1, it is characterised in that:Described aerobic module (4)Inside it is provided with hanger(21), described hanger(21)Fixed including beam and with beam and peg vertically downward, beam is taken Hang over aerobic module(4)Top, its short transverse is provided with multiple aerobic filling balls on described peg(22).
6. the cellular treatment tank of small modular according to claim 1, it is characterised in that:Described aeration tube (12)With aeration pump(14)Between pipeline on be provided with aeration valve(23), described aeration valve(23)For time control valve.
CN201710493070.9A 2017-06-26 2017-06-26 The cellular treatment tank of small modular Pending CN107117777A (en)

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Application Number Priority Date Filing Date Title
CN201710493070.9A CN107117777A (en) 2017-06-26 2017-06-26 The cellular treatment tank of small modular

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Application Number Priority Date Filing Date Title
CN201710493070.9A CN107117777A (en) 2017-06-26 2017-06-26 The cellular treatment tank of small modular

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111425058A (en) * 2020-04-14 2020-07-17 中生源(海南)生态环境发展有限公司 Cellular enclosure device that modularization can be assembled fast
CN111777285A (en) * 2020-07-24 2020-10-16 黑龙江省水利科学研究院 Rural domestic sewage rapid treatment device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090061509A1 (en) * 2007-08-27 2009-03-05 Beijing Nengtuo High Technology Co., Ltd Treatment system of high concentration organic sewage
CN202139102U (en) * 2011-07-22 2012-02-08 姜智家 Prefabricated reinforced concrete biochemical pond
CN106045227A (en) * 2016-08-01 2016-10-26 安徽泛亚环保科技有限公司 Miniature integrated domestic sewage treatment equipment
CN106242190A (en) * 2016-08-31 2016-12-21 陕西朗正环保科技有限公司 A kind of modularity sewage disposal system
CN206915955U (en) * 2017-06-26 2018-01-23 河南泽衡环保科技股份有限公司 The cellular treatment tank of small modular

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090061509A1 (en) * 2007-08-27 2009-03-05 Beijing Nengtuo High Technology Co., Ltd Treatment system of high concentration organic sewage
CN202139102U (en) * 2011-07-22 2012-02-08 姜智家 Prefabricated reinforced concrete biochemical pond
CN106045227A (en) * 2016-08-01 2016-10-26 安徽泛亚环保科技有限公司 Miniature integrated domestic sewage treatment equipment
CN106242190A (en) * 2016-08-31 2016-12-21 陕西朗正环保科技有限公司 A kind of modularity sewage disposal system
CN206915955U (en) * 2017-06-26 2018-01-23 河南泽衡环保科技股份有限公司 The cellular treatment tank of small modular

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111425058A (en) * 2020-04-14 2020-07-17 中生源(海南)生态环境发展有限公司 Cellular enclosure device that modularization can be assembled fast
CN111777285A (en) * 2020-07-24 2020-10-16 黑龙江省水利科学研究院 Rural domestic sewage rapid treatment device

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