CN202191845U - Immersive ultrafiltration membrane short-flow water treatment device with solid-liquid separator - Google Patents

Immersive ultrafiltration membrane short-flow water treatment device with solid-liquid separator Download PDF

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Publication number
CN202191845U
CN202191845U CN2011203166848U CN201120316684U CN202191845U CN 202191845 U CN202191845 U CN 202191845U CN 2011203166848 U CN2011203166848 U CN 2011203166848U CN 201120316684 U CN201120316684 U CN 201120316684U CN 202191845 U CN202191845 U CN 202191845U
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CN
China
Prior art keywords
ultrafiltration membrane
solid
liquid separator
immersive
water
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Expired - Lifetime
Application number
CN2011203166848U
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Chinese (zh)
Inventor
张效刚
陈莉
冯金荣
邓伯林
薛开泉
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TAIPINGYANG WATER TREATMENT ENGINEERING Co Ltd
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TAIPINGYANG WATER TREATMENT ENGINEERING Co Ltd
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Priority to CN2011203166848U priority Critical patent/CN202191845U/en
Application granted granted Critical
Publication of CN202191845U publication Critical patent/CN202191845U/en
Anticipated expiration legal-status Critical
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Abstract

An immersive ultrafiltration membrane short-flow water treatment device with a solid-liquid separator comprises a mixing tank, a flocculating tank, an immersive ultrafiltration membrane tank, a water pump and a water production tank. The immersive ultrafiltration membrane short-flow water treatment device is characterized in that the immersive ultrafiltration membrane tank comprises an immersive ultrafiltration membrane component, a sludge deposition area, the solid-liquid separator, a water inlet pipeline, a sludge discharge pipeline and an overflow pipeline, wherein the solid-liquid separator is arranged on the lower portion of the immersive ultrafiltration membrane component, and an inlet of the water inlet pipeline is arranged on the lower portion of the solid-liquid separator. The device is applicable to the water purification industry, particularly applicable to upgrading modification of old waterworks and construction of new waterworks, and suitable for the field of drinking water treatment for rural areas with polluted water sources or small-scale water treatment plants. The solid-liquid separator in the device can be used for effectively separating solid from liquid, the work load of an immersive ultrafiltration membrane is relieved, pollution to the ultrafiltration membrane is delayed, the problem of sludge deposition of an ultrafiltration membrane with a fixed lower end is solved effectively, the service life of the ultrafiltration membrane is prolonged, and the service strength of the ultrafiltration membrane is improved.

Description

A kind of short flow process water treatment facilities of immersion milipore filter that adopts solid-liquid separator
Technical field
This device is suitable for the clean water treatment industry, and especially old waterworks is carried mark and transformed and newly-built water factory; Drinking water treatment field, rural area that this device is suitable for being polluted at the water source or water treatment station on a small scale.
Background technology
At present, domestic ultrafiltration membrane treatment technology progressively is being applied to water treatment field and is developing.Especially, nearly 2 years is that the short flow process water purification treatment technology of core has obtained application more and more widely with the immersion milipore filter, on actual engineering, has obtained good operational effect, has fully proved the feasibility and the success property of this technology.In the short flow process water purification treatment technology that with the immersion milipore filter is core, former water directly gets into membrane cisterna and handles behind coagulation, can effectively improve film pollution mechanism, and reason is following:
(1) coagulation has increased particle size.The increase of particle size, the also corresponding increase of probability on film surface is left in the particle migration; Secondly, because the shearing force effect of fluid, the effect that the film surface is left in large-sized particle migration is enhanced; Finally, the oarse-grained flco that coagulation process produces is not easy to see through fenestra more, causes fenestra to block.
(2) change the filter cake form, reduced the filter cake resistivity.
(3) improve the clearance of natural organic matter, changed the composition of former water natural organic matter.Natural organic matter is the main matter that causes film to pollute, and coagulation can effectively be removed natural organic matter, change natural organic matter composition situation and surface electrical behavior, reduction natural organic matter in film surface adsorption ability.
(4) improved backwash efficient.It is generally acknowledged that because thereby coagulating treatment has increased the particle size and reduced the fenestra obstruction backwash is removed the efficient of cake layer and also obviously improved.
But, be that the hyperfiltration membrane assembly that the short flow process water purification treatment technology of core adopts is a curtain type membrane with the immersion milipore filter, or the cylindrical membrane assembly, its common characteristic is that membrane module bottom or upper and lower are all fixed.Because water directly gets into membrane cisterna behind the coagulation, clay content is high, is prone to accumulate a large amount of mud in membrane module lower films bundle bearing; And this part deposition is difficult to remove through conventional aeration flushing, accumulates over a long period; The membrane module that reduces filters effective area, quickens membrane module and pollutes speed, and immersion hyperfiltration membrane assembly flux descends; Need to increase the intensity of film suction, energy consumption improves.
Summary of the invention
A kind of short flow process water treatment facilities of immersion milipore filter of solid-liquid separator that adopts comprises mixing pit, flocculation basin, immersion ultrafiltration membrane cisterna; Water pump and product pond is characterized in that described immersion ultrafiltration membrane cisterna comprises immersion hyperfiltration membrane assembly, mud accumulation area; Solid-liquid separator, inlet channel, spoil disposal pipeline and overflow pipe; Wherein solid-liquid separator is in the bottom of immersion hyperfiltration membrane assembly, and the inlet of inlet channel is in the bottom of solid-liquid separator.Mixing pit, flocculation basin, immersion ultrafiltration membrane cisterna and product pond link to each other with pipeline.This solid-liquid separator structure is that projection is the triangular pyramidal structure of acute angle, and rectangular through holes is all arranged at each face bottom of taper.Rectangular through holes can be used as former aquaporin, and also coming off as solid-liquid separator conical surface mud and milipore filter surface mud cake gets into the passage of mud accumulation area.Former water water pump gets into mixing pit, and mixing pit, flocculation basin utilize gravity Inlet and outlet water mode on advancing down, to go out, flocculation basin top water outlet entering bottom, ultrafiltration membrane treatment pond; Current are upwelling; Through the Separation of Solid and Liquid apparatus, the part mud-water separation, the negative pressure that the water pump suction of milipore filter utilization back forms is filtered the product water conservancy project and is done; Produce the water inlet of top, pond, the bottom water outlet.At mixing pit and flocculation basin agitator is set respectively.
Adopt the immersion ultrafiltration membrane cisterna of solid-liquid separator, can effectively solve membrane module deposition problem, meeting simultaneously with the immersion milipore filter is the short flow process water purification treatment technology theory of core; Former water gets into after the membrane cisterna, and under the solid-liquid separator effect, the bulky grain flco can settle down; The micro-floccule that proportion is little still gets into the membrane module zone with current, when membrane module produces water, forms loose cake layer on film silk surface; Delay contaminated speed of membrane module and degree; The mud cake that comes off on film surface finally gets into the mud accumulation area of membrane cisterna through the rectangular through holes of solid-liquid separator, mud accumulation area is provided with static pressure spoil disposal pipeline, regularly automatic mud removing.Immersion ultrafiltration membrane cisterna top is provided with overflow pipe, guarantees treatment pond water inlet and aquifer yield balance.
Description of drawings
Fig. 1 adopts the structural representation of the short flow process water treatment facilities of immersion milipore filter of solid-liquid separator
Fig. 2 immersion milipore filter pool structure sketch map
The specific embodiment
Below in conjunction with shown in the accompanying drawing the utility model is further described.
Specifically with reference to figure 1 and Fig. 2, arrow is represented water (flow) direction among the figure.
A kind of short flow process water treatment facilities of immersion milipore filter that adopts solid-liquid separator, former water 11 is got into by mixing pit bottom 13 under the supercharging condition; On inlet channel, be provided with dosing coagulant inlet 12, carry out flocculant concentration; Mixing pit 1 bottom is provided with blow-off line 14 simultaneously; Mixing pit adopts mechanical agitator, and mechanical mixture GT value can reach 106, and former water was 5 minutes mixing pit time of staying.
Mixing pit 1 water outlet is a gravity current, flows into flocculation basin 2 through water inlet pipe 21, and flocculation basin is the casual fast mixing pit of machinery, adopts mechanical agitator, and mechanical mixture G value can reach 60S -1, flocculation basin 2 bottoms are provided with blow-off line 22, carry out regular spoil disposal.Former water was 10 minutes flocculation basin time of staying.
Flocculation basin 2 water outlets also are gravity current, get into immersion ultrafiltration membrane cisterna 3 through pipeline 31.Immersion ultrafiltration membrane cisterna 3 bottoms are provided with spoil disposal pipeline 32, and treatment pond top is provided with overflow pipe 33, guarantee immersion ultrafiltration membrane cisterna 3 water inlet and aquifer yield balances.Immersion hyperfiltration membrane assembly 34 is placed in the middle and upper part in the treatment pond; It below the immersion hyperfiltration membrane assembly 34 the two-layer solid-liquid separator 35 that is complementary with the membrane cisterna cross section; This routine used milipore filter is a doughnut immersion hyperfiltration membrane assembly, and the aperture is 0.01um, and material is PAC.The bottom is group solid-liquid separator 35, and the bottom is a mud accumulation area 36.
Water pump 4 is a centrifugal pump.Membrane filtration just leans on water pump 4 suctions to form negative pressure and produces water.Immersion ultrafiltration membrane cisterna 3 water producing pipes are the inlet channel 41 of water pump 4.
It is 51 that the outlet pipeline of water pump 4 is the inlet ductwork of producing pond 5, and producing the pond outlet pipeline is 52.
The former water of the short flow process water treatment facilities of immersion milipore filter that adopts solid-liquid separator is successively through the mix flocculation; Form big molecule flco; In immersion ultrafiltration membrane cisterna, solid-liquid separator can make most of big molecule flco obtain sedimentation, reduces film and pollutes speed and degree; Prolong milipore filter service life, thereby reduce the film processing cost.Hold back through ultrafiltration, organic matter and microorganism further obtain removing, and ensure water supply security, satisfy national drinking water standard.

Claims (3)

1. the short flow process water treatment facilities of immersion milipore filter that adopts solid-liquid separator comprises mixing pit, flocculation basin; Immersion ultrafiltration membrane cisterna, water pump and product pond is characterized in that described immersion ultrafiltration membrane cisterna comprises the immersion hyperfiltration membrane assembly; Mud accumulation area; Solid-liquid separator, inlet channel, spoil disposal pipeline and overflow pipe.
2. according to the said a kind of short flow process water treatment facilities of immersion milipore filter that adopts solid-liquid separator of claim 1; It is characterized by that solid-liquid separator is in the bottom of immersion hyperfiltration membrane assembly in the said immersion ultrafiltration membrane cisterna, the inlet of inlet channel is in the bottom of solid-liquid separator.
3. according to the said a kind of short flow process water treatment facilities of immersion milipore filter that adopts solid-liquid separator of claim 1; It is characterized by that the solid-liquid separator structure is that projection is the triangular pyramidal structure of acute angle in the said immersion ultrafiltration membrane cisterna, rectangular through holes is all arranged at each face bottom of taper.
CN2011203166848U 2011-08-29 2011-08-29 Immersive ultrafiltration membrane short-flow water treatment device with solid-liquid separator Expired - Lifetime CN202191845U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203166848U CN202191845U (en) 2011-08-29 2011-08-29 Immersive ultrafiltration membrane short-flow water treatment device with solid-liquid separator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203166848U CN202191845U (en) 2011-08-29 2011-08-29 Immersive ultrafiltration membrane short-flow water treatment device with solid-liquid separator

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CN202191845U true CN202191845U (en) 2012-04-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105293777A (en) * 2015-11-20 2016-02-03 四川大学 Coagulation-efficient sedimentation-air flotation/gas stripping-membrane integrated device and membrane pollution alleviating method
CN111087095A (en) * 2019-12-06 2020-05-01 北京碧水源科技股份有限公司 Method for preparing high-quality drinking water

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105293777A (en) * 2015-11-20 2016-02-03 四川大学 Coagulation-efficient sedimentation-air flotation/gas stripping-membrane integrated device and membrane pollution alleviating method
CN105293777B (en) * 2015-11-20 2018-01-05 四川大学 Coagulation High-rate sedimentation air supporting/air lift film integrated apparatus and the method for mitigating fouling membrane
CN111087095A (en) * 2019-12-06 2020-05-01 北京碧水源科技股份有限公司 Method for preparing high-quality drinking water

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP02 Change in the address of a patent holder

Address after: The workers and peasants in Jiangsu province 226000 Nantong City Road No. 29 Rainbow Building 4 floor B block

Patentee after: Taipingyang Water Treatment Engineering Co., Ltd.

Address before: 226010 Pacific Water Treatment Engineering Co., Ltd., 51 Guangzhou Road, Nantong economic and Technological Development Zone, Jiangsu, China

Patentee before: Taipingyang Water Treatment Engineering Co., Ltd.

PP01 Preservation of patent right
PP01 Preservation of patent right

Effective date of registration: 20191008

Granted publication date: 20120418

DD01 Delivery of document by public notice
DD01 Delivery of document by public notice

Addressee: Taipingyang Water Treatment Engineering Co., Ltd.

Document name: Notice of preservation procedure

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20120418