CN105347567A - Sewage treatment device - Google Patents

Sewage treatment device Download PDF

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Publication number
CN105347567A
CN105347567A CN201510854755.2A CN201510854755A CN105347567A CN 105347567 A CN105347567 A CN 105347567A CN 201510854755 A CN201510854755 A CN 201510854755A CN 105347567 A CN105347567 A CN 105347567A
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China
Prior art keywords
web
arm
zone
tank
reaction zone
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Granted
Application number
CN201510854755.2A
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Chinese (zh)
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CN105347567B (en
Inventor
孙涛
孙连军
黄俊波
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.)
Wuxi Gongyuan Environmental Science and Technology Co., Ltd.
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Wuxi Gongyuan Machinery Co Ltd
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Priority to CN201510854755.2A priority Critical patent/CN105347567B/en
Publication of CN105347567A publication Critical patent/CN105347567A/en
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Publication of CN105347567B publication Critical patent/CN105347567B/en
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Abstract

The invention provides a sewage treatment device. By means of the device, colloid COD and residual macromolecules in sewage can be further removed, and suspended solid removal efficiency can be improved. The device comprises a pool body and an air dissolving system; The device is characterized in that the pool body comprises an air floatation area and a filtration area; the air floatation area comprises a reaction zone, a contact mixing zone and a separating zone, stirrers are arranged in the reaction zone, stirring shafts of the stirrers extend to the bottom of the reaction zone, and the middle and the bottom of each stirring shaft are each provided with a stirring paddle; a sewage collection tank, a filtering basin, a filtered liquid storage tank, a membrane filtration tank and a clean water tank are arranged in the filtration area, the sewage collection tank is located above the filtering basin and provided with an overflow port (A), a water inlet in the bottom of the sewage collection tank is communicated with the separating zone, the filtered liquid storage tank is provided with an overflow port (B) communicated with the membrane filtration tank, a hollow fiber membrane assembly is arranged in the membrane filtration tank, and a clear liquid outlet of the hollow fiber membrane assembly is communicated with the clean water tank; a filter cap, a filter board, a receiving layer, a filter material layer, a receiving layer and a filter board are arranged in the filter basin in sequence from bottom to top.

Description

A kind of waste disposal plant
Technical field
The present invention relates to a kind of waste disposal plant.
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 a kind of waste disposal plant, 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, 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, two agitators are provided with in described reaction zone, the stir shaft of described agitator stretches to bottom reaction zone, and the middle part of described stir shaft and bottom are respectively provided with a stirring rake; 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 to be positioned at above described filtering basin and to be provided with overflow port A, the bottom water-in of 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, hollow fiber film assembly is provided with in described membrane filtration groove, the purified liquor outlet UNICOM Rinsing Area of described hollow fiber film assembly, the dope outlet UNICOM reaction zone of described membrane filtration groove;
Filter cap, filter plate, undertaking layer, filter material layer, undertaking layer and filter plate is provided with from bottom to top successively in described filtering basin.
Further, described overflow port A, overflow port B are respectively equipped with overflow weir.
Further, the purified liquor outlet of described hollow fiber film assembly 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 hollow fiber film assembly by pipeline, dosing pump.
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 hollow fiber film assembly, 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, Rinsing Area is divided into filtering basin, filtered liquid storage tank, membrane filtration groove and Rinsing Area, and in membrane filtration groove, hollow fiber film assembly 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 hollow fiber 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, 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 and two agitators 44, the stir shaft 45 of agitator 44 stretches to bottom reaction zone 3, the middle part of stir shaft 45 and bottom are respectively provided with a stirring rake 46, 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, the bottom water-in of sewage collecting tank 10 and disengaging zone 6 are by header 18 UNICOM, concrete, header 18 comprises and is seated the circumferential body bottom disengaging zone 6 and the connection section with disengaging zone 6 UNICOM, the tube wall of circumferential body is distributed with gully-hole, filter cap is provided with successively from bottom to top in filtering basin, filter plate, accept layer, filter material layer, accept layer and filter plate, filter material layer adopts Expandable Polystyrene (EPS) foam filtrate (commercial products), filtering basin 16 and filtered liquid storage tank 21 pass through pipeline, water pump UNICOM, 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, hollow fiber film assembly is provided with in membrane filtration groove 25, the bottom of hollow fiber film assembly 14 is connected with aerating pipelines 27, the purified liquor outlet 22 UNICOM Rinsing Area 19 on its top, filtered liquid storage tank 21 also connects the dissolving 26 of air dissolving system by pipeline, 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 hollow fiber film assembly 14, effectively prevent blocking, when there is blocking aerating pipelines 27 inside time, air purge valve 24 can be opened, reach the object of flushing.
The purified liquor outlet 22 of hollow fiber 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 hollow fiber 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 hollow fiber film assembly 14 by pipeline, dosing pump, when hollow fiber film assembly 14 cannot have efficient recovery membrane flux with back flushing time, grug feeding jar 17 injects suitable medicament by dosing pump to hollow fiber film assembly 14, reaches the object of cleaning hollow fiber 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.
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 hollow fiber 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.

Claims (4)

1. a waste disposal plant, it comprises pond body and air dissolving system, 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, two agitators are provided with in described reaction zone, the stir shaft of described agitator stretches to bottom reaction zone, and the middle part of described stir shaft and bottom are respectively provided with a stirring rake; 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 to be positioned at above described filtering basin and to be provided with overflow port A, the bottom water-in of 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, hollow fiber film assembly is provided with in described membrane filtration groove, the purified liquor outlet UNICOM Rinsing Area of described hollow fiber film assembly, the dope outlet UNICOM reaction zone of described membrane filtration groove;
Filter cap, filter plate, undertaking layer, filter material layer, undertaking layer and filter plate is provided with from bottom to top successively in described filtering basin.
2. a kind of waste disposal plant according to claim 1, is characterized in that: described overflow port A, overflow port B are respectively equipped with overflow weir.
3. a kind of waste disposal plant according to claim 1, it is characterized in that: the purified liquor outlet of described hollow fiber film assembly 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. a kind of waste disposal plant according to claim 3, 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 hollow fiber film assembly by pipeline, dosing pump.
CN201510854755.2A 2015-11-30 2015-11-30 A kind of sewage-treatment plant Active CN105347567B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510854755.2A CN105347567B (en) 2015-11-30 2015-11-30 A kind of sewage-treatment plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510854755.2A CN105347567B (en) 2015-11-30 2015-11-30 A kind of sewage-treatment plant

Publications (2)

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CN105347567A true CN105347567A (en) 2016-02-24
CN105347567B CN105347567B (en) 2018-06-26

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN104192994A (en) * 2014-08-05 2014-12-10 诺卫环境安全工程技术(广州)有限公司 Membrane bioreactor
CN204325017U (en) * 2014-12-28 2015-05-13 陕西兰环环境工程集团有限公司 Membrane filter appts
CN205258185U (en) * 2015-11-30 2016-05-25 无锡工源机械有限公司 Sewage treatment device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN104192994A (en) * 2014-08-05 2014-12-10 诺卫环境安全工程技术(广州)有限公司 Membrane bioreactor
CN204325017U (en) * 2014-12-28 2015-05-13 陕西兰环环境工程集团有限公司 Membrane filter appts
CN205258185U (en) * 2015-11-30 2016-05-25 无锡工源机械有限公司 Sewage treatment device

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Address after: 214000, No. 55 West Harbour Road, tin Beizhen, Jiangsu, Wuxi

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

Address before: 214000, No. 55 West Harbour Road, tin Beizhen, Jiangsu, Wuxi

Patentee before: Wuxi Gongyuan Machinery Co.,Ltd.