CN102583647A - Industrial wastewater reuse and treatment equipment with tubular micro-filtration membrane and process flow thereof - Google Patents
Industrial wastewater reuse and treatment equipment with tubular micro-filtration membrane and process flow thereof Download PDFInfo
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- CN102583647A CN102583647A CN2012100077377A CN201210007737A CN102583647A CN 102583647 A CN102583647 A CN 102583647A CN 2012100077377 A CN2012100077377 A CN 2012100077377A CN 201210007737 A CN201210007737 A CN 201210007737A CN 102583647 A CN102583647 A CN 102583647A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
The invention relates to wastewater reuse and treatment equipment for filtering sewage by means of a tubular micro-filtration membrane and a process flow for treating industrial wastewater by means of the tubular micro-filtration membrane. The wastewater reuse and treatment equipment comprises a wastewater concentration tank, a tubular micro-filtration membrane component unit, an automatic control cabinet, a rinsing water tank, a cleaning water tank, a water supply circulation pump and a cleaning pump, wherein the tubular micro-filtration membrane component unit is fixedly connected with the wastewater concentration tank through a pipeline to form a water circulation loop; the inlet of the water circulation loop is fixed to the lower end of the wastewater concentration tank and is provided with the water supply circulation pump; the tail end of the water circulation loop is provided with a concentrated water return pipe; the water outlet of the concentrated water return pipe is fixed to the upper end of the wastewater concentration tank; the tubular micro-filtration membrane component unit is communicated with a water producing tube through a pipeline; the cleaning water tank and the rinsing water tank are communicated with the wastewater inlet end of the tubular micro-filtration membrane component unit through pipelines; the cleaning pump is arranged on a connecting pipeline; and the automatic control cabinet is electrically connected with a control regulating valve, a controller and a measuring instrument which are fixedly connected to the pipelines through circuits.
Description
Technical field
The present invention relates to industrial effluent reusing handles; Especially a kind of employing tube type filter membrance carries out sewage water filtration, and the waste water that is mainly used in microelectronic industry, photovoltaic industry and glass processing industry producing behind silicon single crystal and glass silicon cut mechanically, the grinding-polishing carries out the equipment of Treatment for Reuse and the technical process that tube type filter membrance is handled trade effluent.
Background technology
In the modern industry, be used for the silicon single crystal of electron trade and solar photoelectric industry, in carrying out the cut mechanically and the grinding-polishing course of processing, a large amount of waters of needs clean or cool off, lubricate.In this process, got into the silicon powder particle of a large amount of silicon single crystal in the water, be that diameter is the subparticle of 0.5 μ m-1 μ m basically, this direct discharging of waste water, not only the suspended substance in the water is overproof, and the waste great lot of water resources.
Experiment shows the waste water that the work sheet crystal silicon is produced, and except silica flour, the water-quality guideline of other impurity all is close with employed raw water quality in the water quality.Therefore, as long as this waste water can be removed silica flour wherein, have fully and reclaim the value of using.
Usually, in waste water, to remove this powder silica flour grain,, also be difficult to obtain the ideal sedimentation effect even if in waste water, add coagulating agent and coagulant aids.Use common filter element filtering or bag to filter this waste water of filter, in causing because of its pore size filter is thick filtering powder is held back weak effect, simultaneously, liquid flux is little, is prone to stop up, and makes to filter to be difficult to carry out.The use tubular fibre filters, though effluent quality is good, is prone to stop up the fiber hole, and process is cleaned the filtration flux that also is difficult to recover water, and hollow-fibre membrane silk insufficient strength, and fracture of wire very easily takes place.
At present, this waste water recycling is handled, the various treatment processs and the device of use all are difficult to reach the ideal results of industrial application.Ground finish industry at glass produces a large amount of trade effluents that contain glass granules too, and there are same problem in this waste water and above silicon single crystal processing industry.
Summary of the invention
It is high and need not to add pharmaceutical chemicals and carry out being mainly used in microelectronic industry, photovoltaic industry and glass processing industry of precipitation process the waste water that produces behind silicon single crystal and glass silicon cut mechanically, the grinding-polishing is carried out the equipment of Treatment for Reuse and handles the technical process of waste water that technical problem to be solved by this invention provides a kind of stable equipment operation, output pure water efficient.
For solving the problems of the technologies described above, the present invention realizes as follows: a kind of tube type filter membrance industrial effluent reusing treatment facility according to the invention comprises waste water thickener, tube type filter membrance assembly unit, automatic control cabinet, flush box, cleaning water tank, water supply recycle pump and scavenging pump; Said tube type filter membrance assembly unit is fixedly connected with the waste water thickener through pipeline, and constitutes water-flow circuit; The lower end of waste water thickener is fixed in the ingress of said water-flow circuit, and the ingress is provided with the water supply recycle pump, and the end of water-flow circuit is provided with concentrated return water pipe, and the water outlet that concentrates return water pipe is fixed in the upper end of waste water thickener; Said tube type filter membrance assembly unit also is communicated with water producing pipe through pipeline; Said cleaning water tank and flush box are communicated with the waterwater entrance end of tube type filter membrance assembly unit through pipeline, and connecting pipeline is provided with scavenging pump; Said automatic control cabinet electrically connects through circuit and the regulating and controlling valve, control and the measuring instrument formation that are fixedly connected on the pipeline.
Said tube type filter membrance assembly unit comprises some groups of tube type filter membrance assemblies, passes through pipeline connection between them; Be provided with some micro-filtration fenestras in the middle of the said tube type filter membrance assembly, sidewall is provided with and the vertical permeate water outlet of micro-filtration fenestra; The permeate water outlet of each tube type filter membrance assembly is communicated with water producing pipe through pipeline.
The micropore size of some its microfiltration membrane that adopt of micro-filtration fenestra that are provided with in the said tube type filter membrance assembly is less than 0.1 micron.
The bottom of said waste water thickener also is provided with discharge tube.
The technical process of a kind of tube type filter membrance industrial effluent reusing treatment facility according to the invention is: a, the waste water that homogenizes after stablizing via waste water homogeneous groove inject the waste water thickener earlier;
Waste water in b, the waste water thickener flows through tube type filter membrance assembly unit with certain pressure and flow velocity, and the micropore that waste water sees through the microfiltration membrane of tube type filter membrance assembly is left to the tube type filter membrance assembly and forms pure water outward;
After c, waste water flow through the tube type filter membrance assembly, the concentrated return water pipe of flowing through returned in the waste water thickener, realizes circulating filtration;
D, flush box decline the clear water injection tube of inside in the filter membrane component unit after equipment operation certain hour, carry out back flushing, thereby remove obstruction material in the pipe;
E, clean water tank and after equipment operation certain hour, the clean-out system injection tube of internal proprietary special use is declined in the filter membrane component unit, carry out matting;
F, after waste strength reaches certain value in the waste water thickener, waste water is discharged via the discharge tube of waste water thickener bottom.
Positively effect of the present invention: a kind of tube type filter membrance industrial effluent reusing treatment facility according to the invention has the tube type filter membrance solid-liquid separation system and the automation control system that makes equipment high efficiency, steady running of specific technique, and adopts the cross flow filter mode circulating filtration of particular stream traffic parameter that waste water is carried out Treatment for Reuse.Simultaneously, in equipment running process, to the characteristic of tube type filter membrance the tube type filter membrance assembly is carried out suitable regular and irregular back flushing and matting, maintenance equipment is stable, the ability of output pure water efficiently.The pure water of output after treatment, turbidity are less than 1NTU, and specific conductivity can be carried out effective Treatment for Reuse to cutting and grinding, polishing waste water fully less than 100S/m, and the recovery can reach more than 95%.The whole plant overall compact, floor space is little, handles to reclaim in the waste water process to need not to use pharmaceutical chemicalss such as flocculation agent, coagulant aids, can remove settling tank, and treatment effect is good, and efficient is high, can reach the ideal results of industrial application fully.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
Fig. 1 is a structural representation of the present invention
Fig. 2 is a process flow diagram of the present invention
Fig. 3 is a tube type filter membrance assembly cross flow filter synoptic diagram of the present invention
Fig. 4 is the structural representation of tube type filter membrance assembly of the present invention
Among the figure, 1, concentrate return water pipe 2, tube type filter membrance assembly 3, water producing pipe
4, automatic control cabinet 5, flush box 6, cleaning water tank
7, water supply recycle pump 8, scavenging pump 9, waste water thickener
10, waste water homogeneous groove 11, pure water groove 12, mud thickener
13, plate-and-frame filter press 14, mud cake transportation equipment 15, sewage
16, filter back sewage 17, pure water 18, permeate water outlet
19, micro-filtration fenestra
Embodiment
To shown in Figure 4, a kind of tube type filter membrance industrial effluent reusing treatment facility according to the invention comprises waste water thickener (1), tube type filter membrance assembly unit, automatic control cabinet (4), flush box (5), cleans water tank (6), water supply recycle pump (7) and scavenging pump (8) like Fig. 1.Said tube type filter membrance assembly unit is fixedly connected with waste water thickener (9) through pipeline; And formation water-flow circuit; Wherein the main effect of waste water thickener (9) is exactly to be used for collecting the waste water that produces with the bill of store crystal silicon course of processing; The inlet channel of waste water is in the notch top of waste water thickener (9), and waste water gets into waste water thickener (9) with the overflow mode, and the bottom of waste water thickener (9) also is provided with discharge tube; The lower end of waste water thickener (9) is fixed in the ingress of said water-flow circuit, and the ingress is provided with water supply recycle pump (7), and the end of water-flow circuit is provided with concentrated return water pipe (1), and the water outlet that concentrates return water pipe (1) is fixed in the upper end of waste water thickener (9); Said tube type filter membrance assembly unit also is communicated with water producing pipe (3) through pipeline; Water supply recycle pump (7) will be according to the technological design predetermined parameter; Make waste water in the waste water thickener (9) under the driving of 20-80psi pressure; Get in the tube type filter membrance assembly unit with the high flow rate of 0.5-8m/s, provide waste water at the continuous round-robin power of internal system and make water see through the power that tube type filter membrance purifies, mobile is simultaneously forward along tube type filter membrance at waste water; Water sees through fenestra from vertical direction and flows to the film pipe outside and obtain pure water, can pure water be injected the pure water groove and collect.Solid particulate then is trapped within the inside of film pipe, and waste water is turning back to waste water thickener (9) in the flow process forward after constantly concentrating.Continuously the waste water in the waste water thickener (9) is sent to tube type filter membrance assembly (2) then and carries out thickening filtration, constantly the output pure water.Said cleaning water tank (6) and flush box (5) are communicated with the waterwater entrance end of tube type filter membrance assembly unit through pipeline; Connecting pipeline is provided with scavenging pump (8); The two will be under the regulating and controlling valve that receives automatic control cabinet (4) control, control and measuring instrument be coordinated; Tube type filter membrance assembly (2) is carried out suitable regular and irregular back flushing and matting, thereby can keep stablizing, working efficiently of equipment, for example equipment filters operation 10-30 minute; Just use the cleaning water in the flush box (5) to carry out back flushing automatically, the time is 10-60 second; This equipment moves 100-200 hour after having adopted special backwashing technology, just need use the clean-out system that cleans special use in the water tank (6) that pipeline is carried out matting.
Equipment of the present invention also can be joined waste water homogeneous groove (10), mud thickener (12) and plate-and-frame filter press (13) outward; Collect the waste water that produces in the production process in the waste water homogeneous groove (10), the precipitation process of in waste water homogeneous groove (10), can going ahead of the rest is injected waste water thickener (9) with the waste water in the waste water homogeneous groove (10) again through the mode of overflow then and is handled; Water for waste water homogeneous groove (10) and waste water thickener (9) does not add pharmaceutical chemicalss such as flocculation agent, coagulant aids.
In circulating treatment procedure constantly; Continuous output along with pure water; Be filtered in the waste water thickener (9) after solid particulate reaches finite concentration in the spissated water quality; Get into mud thickener (12) deposition back by the discharge tube that is arranged at waste water thickener (9) bottom and form mud; Water extracter or the plate-and-frame filter press (13) of again mud being sent to separately configuration are with slurry dewatering, and the mud cake of formation can reclaim through the mud cake transportation equipment (14) of configuration separately or outward transport, and the water of generation can return waste water thickener (9) and carry out tube type filter membrance industrial effluent reusing treatment facility treatment scheme of the present invention.
Said tube type filter membrance assembly unit comprises some groups of tube type filter membrance assemblies (2), passes through pipeline connection between them; Be provided with some micro-filtration fenestras (19) in the middle of the said tube type filter membrance assembly (2), sidewall is provided with and the vertical permeate water outlet of micro-filtration fenestra (19) (18); The permeate water outlet (18) of each tube type filter membrance assembly (2) is communicated with water producing pipe (3) through pipeline.This tube type filter membrance assembly of selecting for use (2) is the porous tubular support that sinters into SE (PE) or pvdf (PVDF), and the useful PVDF material of its inwall is filled the tubular film pipe of a root of the filtering layer that forms, and many film pipes compose in parallel membrane module in putamina; The micropore size of film can be less than 0.1 μ m; Physical strength is high, and the chemically-resistant medicament cleans, and cleans back liquid flow flux and recovers; This tubular film excellent property, filtering accuracy can reach the ultra filtration level.It designs for specific technique for the core tube type filter membrance assembly unit of equipment; Adopt the cross flow filter mode circulating filtration of particular stream traffic parameter that waste water is carried out Treatment for Reuse; Waste water is under the 20-80psi pressure-driven; High flow rate with 0.5-8m/s gets into the film pipe, and solidliquid mixture flows with the turbulent flow mode in the film pipe.Say from physical structure, can regard this turbulent flow as cross-flow passes that the vortex by various different scales is formed by stacking.Liquid is in irregular the flowing of the three-dimensional unstable state of this high complexity, band rotation, and the size of vortex and the direction of turning axle distribute and be that the various physical parameters of fluidic all with the space variation at random take place in time like speed, pressure etc. at random.This physico mechanical characteristic; Well solved the blockage problem of the small solid particulate in the waste water to fenestra; Prevent the accumulation of solid particulate in film pore wall and hole that be trapped, and made it be difficult to form fouling, thereby can keep the high throughput of film; Greatly prolong the filtration life cycle of tubular filter film, improved processing efficiency.Another effect of the solid-liquid separation that this tube type filter membrance assembly (2) is carried out is that in fact it replaced solid precipitation pond or the settler in the traditional method, has reduced floor space and facility investment.
Summation: a kind of tube type filter membrance industrial effluent reusing treatment facility of the present invention is by the tube type filter membrance solid-liquid separation system and is that equipment is efficient according to setup parameter, the automation control system of steady running constitutes; Control regulating and controlling valve, control and measuring instrument, the instrument etc. that are arranged in each pipeline through automatic control cabinet (4) in the automation control system,, guarantee the steady running of entire equipment like SV, under meter, tensimeter etc.Through practical proof,, under the Reasonable Parameters of setting, move according to the sewage disposal device of principle of the present invention and structure fabrication; Handle to reclaim waste water,, produce the 35t/h that reaches that discharge can be stable through above test run(s) half a year; Need not to add pharmaceutical chemicals in the treating processes, it is good to filter effluent quality, and turbidity is less than 1NTU; Specific conductivity is less than 100S/m, and the waste water reclamation utilization ratio reaches more than 95%.
Working process of the present invention:
A kind of tube type filter membrance industrial effluent reusing treatment facility according to the invention is when work; Can the cut mechanically that produce in the production process, grinding-polishing waste water or Cleaning Wastewater be collected in the waste water homogeneous groove (10); Homogenize behind the stabilizing water quality, overflow in the waste water thickener (9).Water supply recycle pump (7) is transported to the waste water in the waste water thickener (9) in the tube type filter membrance assembly unit.When waste water flowed forward in tube type filter membrance assembly unit, under pressure-driven, water continuously saw through micro-filtration fenestra (19) from vertical direction and flows to the film pipe outside, and obtains pure water.Waste water is constantly concentrated, and returns waste water thickener (9) then.Waste water in the waste water thickener (9) comes and goes constantly to be transported in the tube type filter membrance assembly unit and carries out filtration treatment, thereby output pure water constantly.The solid particulate suspended substance is constantly enrichment in waste water thickener (9), can put into mud thickener (12) after reaching finite concentration.Mud thickener (12) carries out slurry dewatering with the plate-and-frame filter press (13) that is sent to that mud is sent to configuration separately, and the less water of generation can be sent waste water thickener (9) back to, and mud cake (silica flour) can or be recycled through mud cake transportation equipment (14) outward transport.
Need to prove in addition; In order to improve the service efficiency of equipment; Improve processing power, reduce processing cost, preferably will contain the few Cleaning Wastewater of solid impurity and contain high cutting of solid particle polluter concentration and grinding, polishing waste water separate collection and carry out Treatment for Reuse respectively.The tube type filter membrance treatment facility of this form is handled recovery separately to the rinse water that produces in the production process, and efficient is higher.
What need particularly point out is that the above only is the preferable embodiment of device structure of the present invention, is not that technical scope of the present invention is made any restriction.Therefore, every foundation core technology of the present invention, any trickle modification, modification and equivalent variations to above instance is made all still belong within the technological category of the present invention, all belong to the protection domain of patent of the present invention.
Claims (6)
1. a tube type filter membrance industrial effluent reusing treatment facility is characterized in that: comprise waste water thickener, tube type filter membrance assembly unit, automatic control cabinet, flush box, cleaning water tank, water supply recycle pump and scavenging pump; Said tube type filter membrance assembly unit is fixedly connected with the waste water thickener through pipeline, and constitutes water-flow circuit; The lower end of waste water thickener is fixed in the ingress of said water-flow circuit, and the ingress is provided with the water supply recycle pump, and the end of water-flow circuit is provided with concentrated return water pipe, and the water outlet that concentrates return water pipe is fixed in the upper end of waste water thickener; Said tube type filter membrance assembly unit also is communicated with water producing pipe through pipeline; Said cleaning water tank and flush box are communicated with the waterwater entrance end of tube type filter membrance assembly unit through pipeline, and connecting pipeline is provided with scavenging pump; Said automatic control cabinet electrically connects through circuit and the regulating and controlling valve, control and the measuring instrument formation that are fixedly connected on the pipeline.
2. a kind of tube type filter membrance industrial effluent reusing treatment facility according to claim 1 is characterized in that: said tube type filter membrance assembly unit comprises some groups of tube type filter membrance assemblies, passes through pipeline connection between them; Be provided with some micro-filtration fenestras in the middle of the said tube type filter membrance assembly, sidewall is provided with and the vertical permeate water outlet of micro-filtration fenestra; The permeate water outlet of each tube type filter membrance assembly is communicated with water producing pipe through pipeline.
3. a kind of tube type filter membrance industrial effluent reusing treatment facility according to claim 1 is characterized in that: the micropore size of some its microfiltration membrane that adopt of micro-filtration fenestra that are provided with in the said tube type filter membrance assembly is less than 0.1 micron.
4. a kind of tube type filter membrance industrial effluent reusing treatment facility according to claim 1, it is characterized in that: the bottom of said waste water thickener also is provided with discharge tube.
5. the technical process of a tube type filter membrance industrial effluent reusing treatment facility is characterized in that: a, the waste water that homogenizes after stablizing via waste water homogeneous groove inject the waste water thickener earlier;
Waste water in b, the waste water thickener flows through tube type filter membrance assembly unit with certain pressure and flow velocity, and the micropore that waste water sees through the microfiltration membrane of tube type filter membrance assembly is left to the tube type filter membrance assembly and forms pure water outward;
After c, waste water flow through the tube type filter membrance assembly, the concentrated return water pipe of flowing through returned in the waste water thickener, realizes circulating filtration;
D, flush box decline the clear water injection tube of inside in the filter membrane component unit after equipment operation certain hour, carry out back flushing, thereby remove obstruction material in the pipe;
E, clean water tank and after equipment operation certain hour, the clean-out system injection tube of internal proprietary special use is declined in the filter membrane component unit, carry out matting;
F, after waste strength reaches certain value in the waste water thickener, waste water is discharged via the discharge tube of waste water thickener bottom.
6. the technical process of a kind of tube type filter membrance industrial effluent reusing treatment facility according to claim 5; It is characterized in that: waste water is under the 20-80psi pressure-driven in the said tube type filter membrance assembly unit; Get in the tube type filter membrance assembly with the 0.5-8m/s high flow rate; Waste water flows forward along the tube type filter membrance assembly, and flows to outside the tube type filter membrance assembly from the micropore perpendicular to the microfiltration membrane of flow direction simultaneously and obtain pure water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100077377A CN102583647A (en) | 2012-01-12 | 2012-01-12 | Industrial wastewater reuse and treatment equipment with tubular micro-filtration membrane and process flow thereof |
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| CN2012100077377A CN102583647A (en) | 2012-01-12 | 2012-01-12 | Industrial wastewater reuse and treatment equipment with tubular micro-filtration membrane and process flow thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028329A (en) * | 2012-12-07 | 2013-04-10 | 无锡凝洋环保科技有限公司 | Grinding wastewater reuse and silica powder recovery device with tubular micro-filtration membrane assembly |
| CN106608693A (en) * | 2016-01-08 | 2017-05-03 | 约瑟夫·安德鲁·兰德 | Closed type energy-saving tubular membrane circulation system |
| CN108031292A (en) * | 2017-12-21 | 2018-05-15 | 济南万坤水务科技有限公司 | One kind realizes solid-liquid concentration, separated cleaning equipment and method |
| CN108217842A (en) * | 2018-01-24 | 2018-06-29 | 浙江南源环境工程技术有限公司 | A kind of device of the wet electric waste water of tubular type microfiltration systems processing |
| CN111874996A (en) * | 2020-07-08 | 2020-11-03 | 江苏圣富利环境工程有限公司 | Tubular microfiltration membrane wastewater treatment process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028329A (en) * | 2012-12-07 | 2013-04-10 | 无锡凝洋环保科技有限公司 | Grinding wastewater reuse and silica powder recovery device with tubular micro-filtration membrane assembly |
| CN106608693A (en) * | 2016-01-08 | 2017-05-03 | 约瑟夫·安德鲁·兰德 | Closed type energy-saving tubular membrane circulation system |
| CN108031292A (en) * | 2017-12-21 | 2018-05-15 | 济南万坤水务科技有限公司 | One kind realizes solid-liquid concentration, separated cleaning equipment and method |
| CN108217842A (en) * | 2018-01-24 | 2018-06-29 | 浙江南源环境工程技术有限公司 | A kind of device of the wet electric waste water of tubular type microfiltration systems processing |
| CN111874996A (en) * | 2020-07-08 | 2020-11-03 | 江苏圣富利环境工程有限公司 | Tubular microfiltration membrane wastewater treatment process |
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Application publication date: 20120718 |