CN105330068A - Air flotation and filtering integrated device - Google Patents

Air flotation and filtering integrated device Download PDF

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Publication number
CN105330068A
CN105330068A CN201510851274.6A CN201510851274A CN105330068A CN 105330068 A CN105330068 A CN 105330068A CN 201510851274 A CN201510851274 A CN 201510851274A CN 105330068 A CN105330068 A CN 105330068A
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China
Prior art keywords
filtering
membrane
tank
web
arm
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CN201510851274.6A
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Chinese (zh)
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CN105330068B (en
Inventor
孙涛
黄俊波
王晔路
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Wuxi Gongyuan Environmental Science and Technology Co., Ltd.
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Wuxi Gongyuan Machinery Co Ltd
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Priority to CN201510851274.6A priority Critical patent/CN105330068B/en
Publication of CN105330068A publication Critical patent/CN105330068A/en
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Publication of CN105330068B publication Critical patent/CN105330068B/en
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Abstract

The invention provides an air flotation and filtering integrated device which can further remove colloidal COD and residual macromolecular substances from sewage so as to improve the removal efficiency of suspended matter. The air flotation and filtering integrated device comprises a tank body and an air dissolving system. The air flotation and filtering integrated device is characterized in that the tank body comprises an air flotation area and a filtering area; the air flotation area comprises a reaction area, a contact mixed area and a separating area which are separated in sequence by partitions, and the reaction area and the contact mixed area are communicated through a pipeline; a sewage collecting tank, a filtering tank, a filtering liquid storage tank, a membrane filtering tank and a clear water tank are arranged in the filtering area, the sewage collecting tank is positioned above the filtering tank, an overflow port A is formed in the sewage collecting tank, the sewage collecting tank and the separating area are communicated through a pipeline, the filtering tank and the filtering liquid storage tank are communicated through a pipeline, an overflow port B which is communicated with the membrane filtering tank is formed in the filtering liquid storage tank, a membrane assembly is arranged in the membrane filtering tank, an air aerating pipeline is connected to the lower part of the membrane assembly, a clear liquid outlet in the upper part of the membrane assembly is communicated with the clear water tank, and a concentrated liquid outlet in the membrane filtering tank is communicated with the reaction area.

Description

Air supporting and filtering integral device
Technical field
The present invention relates to sewage disposal device, be specifically related to air supporting and filtering integral device.
Background technology
Air supporting is a kind of equipment being widely used in trade effluent and urban sewage treatment, and it plays the effect of solid-liquid separation and person's oily water separation.Its principle of work is: the micro-bubble of height of formation dispersion in water, adhere to hydrophobic solid or liquid particle in trade effluent and municipal effluent, after particle adhesion bubble, form apparent density be less than the flco of water and float to the water surface, form scum layer to be struck off, thus realize the process of solid-liquid or oily water separation.But sewage is after conventional airfloat equipment, partial suspended thing is still had to remain, the COD of such as colloidal attitude and remaining macromolecular substance.
Summary of the invention
For the problems referred to above, the invention provides air supporting and filtering integral device, it further except COD and the remaining macromolecular substance of the colloidal attitude in decontaminated water, can improve the removing efficiency of suspended substance.
Its technical scheme is such, and it comprises pond body and air dissolving system, and described air dissolving system comprises dissolving, it is characterized in that, described pond body comprises air flotation zone and filtrating area;
Described air flotation zone comprise be separated successively by dividing plate reaction zone, contact mixing zone and disengaging zone, described reaction zone and the described mixing zone that contacts are by pipeline UNICOM, the dissolved air water output tube UNICOM of described dissolving is to contacting mixing zone, the slag chute that described disengaging zone is provided with slag scraper and coordinates with slag scraper, described slag chute is provided with leads slag weir;
Described filtrating area is provided with sewage collecting tank, filtering basin, filtered liquid storage tank, membrane filtration groove and Rinsing Area, described sewage collecting tank is positioned at above described filtering basin, and be provided with overflow port A, described sewage collecting tank and disengaging zone are by pipeline UNICOM, described filtering basin and filtered liquid storage tank are by pipeline and water pump UNICOM, described filtered liquid storage tank is provided with the overflow port B with membrane filtration groove UNICOM, membrane module is provided with in described membrane filtration groove, the bottom of described membrane module is connected with aerating pipelines, Rinsing Area described in the purified liquor outlet UNICOM on its top, described filtered liquid storage tank also connects dissolving by pipeline, the dope outlet UNICOM reaction zone of described membrane filtration groove.
Further, described overflow port A, overflow port B are respectively equipped with overflow weir.
Further, the purified liquor outlet of described membrane module passes through piping system, water pump is connected with described Rinsing Area, described Rinsing Area top is provided with film clear water output, its underpart is provided with membrane backwashing mouth, described piping system comprises the first arm, second arm and the 3rd arm, described first arm is provided with the first web member and the 3rd web member, described second arm is provided with the second web member, the two ends of described first arm connect purified liquor outlet and membrane backwashing mouth, described second arm connects the water outlet of the first web member and water pump, described 3rd arm junctional membrane clear water output and the second web member, the water-in of described water pump connects the 3rd web member, the position of described first arm between the first web member and the 3rd web member, the described position of the second arm between the first web member and the second web member, film clear water output and membrane backwashing mouth are respectively equipped with valve.
Further, side portion, described pond is provided with grug feeding jar, and described grug feeding jar is connected with the purified liquor outlet of membrane module by pipeline, dosing pump.
Further, described membrane module is plate film assembly or hollow fiber film assembly.
Adopt the present invention, sewage in air flotation zone successively through reaction zone, contact mixing zone and disengaging zone, carry out preliminary solid-liquid separation by By Bubble-floating Method and be separated with fluid; After entering filtrating area, successively through filtering basin, filtered liquid storage tank and membrane module, further except COD and the remaining macromolecular substance of the colloidal attitude in decontaminated water, thus improve the removing efficiency of suspended substance.In addition, by on the basis of air supporting original pond body, clear water zone is divided into filtering basin, filtered liquid storage tank, membrane filtration groove and Rinsing Area, and in membrane filtration groove, membrane module is installed, make this device can in the finite space integrated multiple processing capacity, not only there is floor space little, reduced investment, and equipment is for conventional airfloat equipment, SS, colourity, removal of heavy metal ions rate all will significantly improve.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present invention.
Fig. 2 is plan structure schematic diagram of the present invention.
Fig. 3 is left TV structure schematic diagram of the present invention.
Fig. 4 is right TV structure schematic diagram of the present invention.
Fig. 5 is the structural representation of the piping system that the purified liquor outlet of plate film assembly of the present invention is connected with Rinsing Area.
Embodiment
As shown in Figures 1 to 5, it comprises pond body 1 and air dissolving system, and pond body comprises air flotation zone and filtrating area; Air flotation zone comprise be separated successively by dividing plate 31, dividing plate 5 reaction zone 3, contact mixing zone 4 and disengaging zone 6, reaction zone 3 with contact mixing zone 4 by water distributor 20 UNICOM, reaction zone 3 is provided with sewage inlet 2, is provided with agitator in it, the slag chute 9 that disengaging zone 6 is provided with slag scraper 7 and coordinates with slag scraper, slag chute 9 is provided with leads slag weir 8.
Filtrating area is provided with sewage collecting tank 10, filtering basin 16, filtered liquid storage tank 21, membrane filtration groove 25 and Rinsing Area 19, sewage collecting tank 10 is positioned at above filtering basin 16, and be provided with overflow port A, sewage collecting tank 10 and disengaging zone 6 are by header 18 UNICOM, filtrate is provided with in filtering basin 16, filter cap and filter plate, filtering basin 16 and filtered liquid storage tank 21 are by pipeline UNICOM, this pipeline can arrange water pump, filtered liquid storage tank 21 is provided with the overflow port B with membrane filtration groove 25 UNICOM, overflow port A is provided with overflow weir 11, overflow port B is provided with overflow weir 13, membrane module is provided with in membrane filtration groove 25, membrane module is specially plate film assembly, the bottom of plate film assembly 14 is connected with aerating pipelines 27, the purified liquor outlet 22 UNICOM Rinsing Area 19 on its top, the dope outlet 32 of membrane filtration groove 25 passes through pipeline UNICOM with reaction zone 3, Rinsing Area 19 is provided with water outlet 12.
Aerating pipelines 27 one end is provided with compressed air inlet port 23, the other end is provided with air purge valve 24, the bubble that aerating pipelines is formed can carry out flush clean to the surface of plate film assembly 14, effectively prevent blocking, when there is blocking aerating pipelines 27 inside time, and open air purge valve 24,, reach the object of flushing.
The purified liquor outlet 22 of plate film assembly is by piping system 33, water pump 15 is connected with Rinsing Area 19, Rinsing Area top is provided with film clear water output 29, its underpart is provided with membrane backwashing mouth 30, piping system 33 comprises the first arm 34, second arm 37 and the 3rd arm 40, first arm 34 is provided with the first web member 35 and the 3rd web member 36, second arm 37 is provided with the second web member 39, the two ends of the first arm 34 connect purified liquor outlet 22 and membrane backwashing mouth 30, the two ends of the second arm 37 connect the water outlet of the first web member 35 and water pump 15, 3rd arm 40 junctional membrane clear water output 29 and the second web member 39, the water-in of water pump 15 connects the 3rd web member 36, the position of the first arm 34 between the first web member and the 3rd web member is provided with valve 43, the position of the second arm between the first web member 35 and the second web member 39 is provided with valve 38, film clear water output 29 end is provided with valve 42, membrane backwashing mouth end is provided with valve 41.Film blocks, and different by switch valve opening and closing, change the direction of a stream of water, water pump 15 extracts clear liquid from membrane backwashing mouth 30, inverse injection plate film assembly 14, cleaning film surface.
Side, pond portion is provided with grug feeding jar 17, grug feeding jar 17, such as sour grug feeding jar, alkali grug feeding jar are connected with the purified liquor outlet 22 of plate film assembly 14 by pipeline, dosing pump, when plate film assembly 14 cannot have efficient recovery membrane flux with back flushing time, grug feeding jar 17 injects suitable medicament by dosing pump to plate film assembly 14, reaches the object of cleaning plate film assembly 14.In addition, grug feeding jar also comprises flocculation agent grug feeding jar, the coagulant aids grug feeding jar needed for air supporting.
Air dissolving system comprises dissolving and high-pressure pump, and dissolving is fixed on pond body sidewall, and its dissolved air water output tube UNICOM is to contact mixing zone 4, and its clear water input tube is by high-pressure pump and filtered liquid storage tank 21 UNICOM.
Working process is as follows: 1, sewage enters reaction zone 3 from water-in 2, carries out flocculation reaction; 2, enter body contact mixing zone 4, pond by water distributor 20, and mix at this and dissolved air water, make microbubble can effectively stick to floc particle surface, form the particle that overall consistency is less than water; 3, enter disengaging zone 6 through dividing plate 5, and carry out flotation separation at this, complete preliminary solid-liquid separation process; 4, the sewage of preliminary treatment enters sewage collecting tank 10 through header 18, then enters the filtering basin 16 containing filtrate through overflow port A; 5, the sewage of preliminary treatment enters filtered liquid storage tank 21 after filtering basin 16 inner filtration; 6, in filtrate storage tank 21, foul water fraction backflow forms dissolved air water, and enters air flotation pool, and part enters membrane filtration groove 25 through overflow port B in addition; 7, enter plate film assembly by water pump 15 sewage aspirated in membrane filtration groove 25 to filter, the clear liquid obtained is stored in Rinsing Area 19, eventually passes through water outlet 12 and discharges system, the dope after filtration is extracted by reflux pump 28, is back to reaction zone 3.
Plate film assembly in above-described embodiment can be substituted by hollow fiber film assembly.

Claims (5)

1. air supporting and filtering integral device, it comprises pond body and air dissolving system, and described air dissolving system comprises dissolving, it is characterized in that, described pond body comprises air flotation zone and filtrating area;
Described air flotation zone comprise be separated successively by dividing plate reaction zone, contact mixing zone and disengaging zone, described reaction zone and the described mixing zone that contacts are by pipeline UNICOM, the dissolved air water output tube UNICOM of described dissolving is to contacting mixing zone, the slag chute that described disengaging zone is provided with slag scraper and coordinates with slag scraper, described slag chute is provided with leads slag weir;
Described filtrating area is provided with sewage collecting tank, filtering basin, filtered liquid storage tank, membrane filtration groove and Rinsing Area, described sewage collecting tank is positioned at above described filtering basin, and be provided with overflow port A, described sewage collecting tank and disengaging zone are by pipeline UNICOM, described filtering basin and filtered liquid storage tank are by pipeline and water pump UNICOM, described filtered liquid storage tank is provided with the overflow port B with membrane filtration groove UNICOM, membrane module is provided with in described membrane filtration groove, the bottom of described membrane module is connected with aerating pipelines, Rinsing Area described in the purified liquor outlet UNICOM on its top, described filtered liquid storage tank also connects the dissolving of air dissolving system by pipeline, the dope outlet UNICOM reaction zone of described membrane filtration groove.
2. air supporting according to claim 1 and filtering integral device, is characterized in that: described overflow port A, overflow port B are respectively equipped with overflow weir.
3. air supporting according to claim 1 and filtering integral device, it is characterized in that: the purified liquor outlet of described membrane module passes through piping system, water pump is connected with described Rinsing Area, described Rinsing Area top is provided with film clear water output, its underpart is provided with membrane backwashing mouth, described piping system comprises the first arm, second arm and the 3rd arm, described first arm is provided with the first web member and the 3rd web member, described second arm is provided with the second web member, the two ends of described first arm connect purified liquor outlet and membrane backwashing mouth, described second arm connects the water outlet of the first web member and water pump, described 3rd arm junctional membrane clear water output and the second web member, the water-in of described water pump connects the 3rd web member, the position of described first arm between the first web member and the 3rd web member, the described position of the second arm between the first web member and the second web member, film clear water output and membrane backwashing mouth are respectively equipped with valve.
4. air supporting according to claim 3 and filtering integral device, is characterized in that: side portion, described pond is provided with grug feeding jar, and described grug feeding jar is connected with the purified liquor outlet of membrane module by pipeline, dosing pump.
5., according to described air supporting arbitrary in Claims 1-4 and filtering integral device, it is characterized in that: described membrane module is plate film assembly or hollow fiber film assembly.
CN201510851274.6A 2015-11-30 2015-11-30 Air supporting and filtering integral device Active CN105330068B (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110078260A (en) * 2019-05-17 2019-08-02 聊城鲁西聚碳酸酯有限公司 A kind of system and method for bisphenol-A in removal high-salt wastewater and application
CN111018031A (en) * 2019-11-29 2020-04-17 安徽节源环保科技有限公司 Novel air floatation tank

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050030084A (en) * 2003-09-24 2005-03-29 손을택 Small sewage terminal treatment device and method
CN202529925U (en) * 2012-02-20 2012-11-14 无锡工源机械有限公司 Air-flotation filtering integrated processing device
CN102976555A (en) * 2012-11-30 2013-03-20 徐州工程学院 Integrated air floatation-membrane bioreactor
CN103979706A (en) * 2014-04-25 2014-08-13 轻工业环境保护研究所 External circulation type pressurized dissolved air floatation-membrane separation water treatment method and device
CN205258183U (en) * 2015-11-30 2016-05-25 无锡工源机械有限公司 Air supporting and filtration integrated device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050030084A (en) * 2003-09-24 2005-03-29 손을택 Small sewage terminal treatment device and method
CN202529925U (en) * 2012-02-20 2012-11-14 无锡工源机械有限公司 Air-flotation filtering integrated processing device
CN102976555A (en) * 2012-11-30 2013-03-20 徐州工程学院 Integrated air floatation-membrane bioreactor
CN103979706A (en) * 2014-04-25 2014-08-13 轻工业环境保护研究所 External circulation type pressurized dissolved air floatation-membrane separation water treatment method and device
CN205258183U (en) * 2015-11-30 2016-05-25 无锡工源机械有限公司 Air supporting and filtration integrated device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110078260A (en) * 2019-05-17 2019-08-02 聊城鲁西聚碳酸酯有限公司 A kind of system and method for bisphenol-A in removal high-salt wastewater and application
CN111018031A (en) * 2019-11-29 2020-04-17 安徽节源环保科技有限公司 Novel air floatation tank

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Address after: No. 55 Xigang West Road, Xibei Town, Wuxi City, Jiangsu Province

Patentee after: Wuxi Gongyuan Environmental Science and Technology Co., Ltd.

Address before: No. 55 Xigang West Road, Xibei Town, Wuxi City, Jiangsu Province

Patentee before: Wuxi Gongyuan Machinery Co.,Ltd.