CN103030237B - Treatment device and treatment method for recycling coal slurry sewage - Google Patents
Treatment device and treatment method for recycling coal slurry sewage Download PDFInfo
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- CN103030237B CN103030237B CN201210592505.2A CN201210592505A CN103030237B CN 103030237 B CN103030237 B CN 103030237B CN 201210592505 A CN201210592505 A CN 201210592505A CN 103030237 B CN103030237 B CN 103030237B
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Abstract
The invention relates to a treatment device and a treatment method for recycling coal slurry sewage. The method comprises the following technological processes that the coal slurry sewage is drained into a settling basin; the coal slurry sewage subjected to settlement treatment sequentially flows through a regulating basin and a coarse screen, and then subjected to filtration treatment by sand filtration, microfiltration and ultrafiltration devices; clear water subjected to the filtration treatment flows into a clear water tank; thick water in microfiltration and ultrafiltration membrane devices is drained into the settling basin; next filtration treatment is conducted; nanofiltration and reverse osmosis module and electrodialysis treatment can be conducted according to different applications of water quality; and then domestic water is obtained. According to the treatment device and the treatment method, a membrane treatment technology is adopted, the sewage is subjected to filtration treatment, nanofiltration, reverse osmosis and electrodialysis treatment, and a whole sewage treatment system has the advantages that the technological processes are short, the operation is simple, the automation degree is high, the labor is saved, and the cost and investment are reduced.
Description
Technical field
The treatment unit and the treatment process that the present invention relates to a kind of reusing sewage, relate to a kind of technical process short specifically, and simple to operate, level of automation is high, saves labor force, reduces costs treatment unit and the treatment process of the coal slime reusing sewage of investment.
Background technology
The main source of coal slime sewage is down-hole water seepage in process of coal mining, owing to can not get well processing a large amount of discharges, causes on the one hand waste and the environmental pollution of water resources; Cause on the other hand the shortage of mining area domestic water.
At present, the traditional treatment process of coal slime sewage for example coagulation, flocculence floor space is large, serviceability is poor, regular job complex management, be subject to water water quality impact large, consume that large, the after treatment water of pharmaceutical quantities can only discharge or simple purposes, cannot be used for the place that the water quality requirements such as domestic water are higher.
Summary of the invention
For the defect of existing coal slime sewage water treatment method, the invention reside in and provide a kind of technical process short, simple to operate, level of automation is high, saves labor force, reduces costs treatment unit and the treatment process of the coal slime reusing sewage of investment.
In order to realize foregoing invention object, technical scheme of the present invention is as follows: a kind for the treatment of unit of coal slime reusing sewage, described device comprises settling bowl, equalizing tank, coarse rack, sand filtering device, micro-filtration and ultra-filtration equipment, Rinsing Area, filter-pressing device and dialysis treatment unit, described settling bowl connects equalizing tank by pipeline, equalizing tank connects coarse rack by pipeline, coarse rack connects sand filtering device by pipeline, sand filtering device connects micro-filtration and ultra-filtration equipment by pipeline, micro-filtration is connected Rinsing Area with ultra-filtration equipment by pipeline, micro-filtration is also connected settling bowl by pipeline with ultra-filtration equipment, micro-filtration is also connected dialysis treatment unit by pipeline with ultra-filtration equipment.
A kind of method of utilizing said apparatus to process coal slime reusing sewage, described method comprises the steps: first coal slime sewage to be entered to settling bowl, flow into equalizing tank through sedimentation coal slime sewage after treatment, flow through successively again coarse rack, sand filtering device, micro-filtration or ultra-filtration membrane device carries out filter process, clear water after filter process flows into Rinsing Area, and concentrated water drainage in micro-filtration and ultra-filtration equipment enters settling bowl, then carry out next round filtration treatment.
In specific embodiments of the invention, the coal slime particle after sedimentation in described settling bowl is carried out to press filtration processing, the water outlet of pressure-filtering process is carried out filtration treatment after entering settling bowl again, and the coal slime being press-filtered out is carried out to recycling.
In specific embodiments of the invention, the filter process being made up of described equalizing tank, coarse rack, sand filtering device, micro-filtration and ultra-filtration equipment assembly is more than or equal to one group.
In specific embodiments of the invention, the clear water from described micro-filtration and ultra-filtration equipment filter is passed through to nanofiltration or reverse osmosis module, electrodialysis process again, the clear water of formation enters another Rinsing Area.
In specific embodiments of the invention, the treatment process that described micro-filtration and ultra-filtration equipment, nanofiltration and reverse osmosis module, electrodialysis adopt is membrane treatment process, and described micro-filtration or hyperfiltration membrane assembly adopt cross flow filter mode, when the standard water production rate of nanofiltration and reverse osmosis module reduces more than 10%, the saturating salt rate of standard increases by 5% when above, carries out nanofiltration and reverse osmosis module cleaning.
In specific embodiments of the invention, the filtering membrane of described micro-filtration and ultra-filtration equipment is ceramic membrane or organic membrane, and film surface apertures is 0.01-1.0 μ m.
In specific embodiments of the invention, in the time that the clear liquid flux of described micro-filtration and ultra-filtration equipment drops to set(ting)value, thereby can carry out back flushing recovery flux to micro-filtration and ultra-filtration equipment, if the clear liquid flux after back flushing in micro-filtration and ultra-filtration equipment still can not return to set(ting)value, thereby can carry out matting recovery flux to this micro-filtration and ultra-filtration equipment.
In specific embodiments of the invention, when the clear liquid flux of described micro-filtration and ultra-filtration equipment drop to initial flux 60% ~ 80% time, open back flushing micro-filtration and ultra-filtration equipment.
In specific embodiments of the invention, the back flushing that described back flushing is used is the clear water after filtering, and recoil pressure reduction is 0.1 ~ 0.3MPa, and the recoil time is 1 ~ 60s.
Positive progressive effect of the present invention is: the treatment unit of coal slime reusing sewage provided by the invention and treatment process adopt sewage is flowed through successively and fallen pond, equalizing tank, the method that coarse rack, sand filtration, micro-filtration/hyperfiltration membrane assembly carry out filter process changes sewage to can be used as greening water, landscape water, service water, wash water into, according to the difference of purposes, the clear water after filtering can also be formed through nanofiltration and reverse osmosis module, electrodialysis process again can be for the water of living.And the coal slime particle after sedimentation in settling bowl is carried out to press filtration treatment process, and can reclaim macrobead coal slime, realize energy-saving and emission-reduction.The treatment process that micro-filtration and ultra-filtration membrane device, nanofiltration and reverse osmosis module, electrodialysis adopt adopts membrane treatment process, has technical process short, simple to operate, level of automation is high, saves labor force, reduces costs investment, the advantages such as the cleaning interval is long, and the rear flux recovery of cleaning is stable.
Brief description of the drawings
Fig. 1 is the schema of coal slime sewage water treatment method of the present invention.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.
As shown in Figure 1, a kind of coal slime sewage water treatment method, its technical process is as follows: first coal slime sewage is entered to settling bowl, flow into equalizing tank regulating water quality pH value through sedimentation coal slime sewage after treatment, then the coarse rack of flowing through filters large particulate matter, then carries out filter process through sand filtering device, micro-filtration and ultra-filtration equipment, and the clear water after filter process flows into Rinsing Area, and concentrated water drainage in micro-filtration and ultra-filtration equipment enters settling bowl, then carry out next round filtration treatment.
Coal slime particle after sedimentation in settling bowl is carried out to press filtration processing, and the water outlet of pressure-filtering process is carried out filtration treatment after entering settling bowl again, and the coal slime being press-filtered out is carried out to recycling.
In specific embodiment, can, according to the size for the treatment of capacity, be set to be more than or equal to one group by the filter process of equalizing tank, coarse rack, sand filtering device, micro-filtration and ultra-filtration membrane installation composition.
According to the concrete purposes of water outlet, the clear water from micro-filtration and the filtration of ultra-filtration membrane device can be passed through again to nanofiltration and reverse osmosis module, electrodialysis process, the clear water of formation enters another Rinsing Area.
The treatment process that micro-filtration and ultra-filtration membrane device, nanofiltration and reverse osmosis module, electrodialysis adopt is membrane treatment process, and micro-filtration and ultra-filtration membrane device adopt cross flow filter mode, the filtering membrane of micro-filtration and ultra-filtration equipment is ceramic membrane or organic membrane, and film surface apertures is 0.01-1.0 μ m.
In the time that the clear liquid flux of micro-filtration and ultra-filtration membrane device drops to set(ting)value, thereby can carry out back flushing recovery flux to micro-filtration and ultra-filtration equipment, if the clear liquid flux after back flushing in micro-filtration and ultra-filtration equipment still can not return to set(ting)value, thereby can carry out matting recovery flux to this micro-filtration and ultra-filtration equipment.
When the clear liquid flux of micro-filtration and ultra-filtration equipment drop to initial flux 60% ~ 80% time, start back flushing micro-filtration and ultra-filtration equipment.
The back flushing that back flushing is used is the clear water after filtering, and recoil pressure reduction is 0.1 ~ 0.3MPa, and the recoil time is 1 ~ 60s.
When the standard water production rate of nanofiltration and reverse osmosis unit reduces more than 10%, the saturating salt rate of standard increases by 5% when above, carries out nanofiltration and reverse osmosis module cleaning, selected scavenging solution adopts the special cleaning configuring.
The treatment unit of coal slime reusing sewage provided by the invention and treatment process adopt sewage are flowed through successively and fallen pond, equalizing tank, the method that coarse rack, sand filtration, micro-filtration/hyperfiltration membrane assembly carry out filter process changes sewage to can be used as greening water, landscape water, service water, wash water into, according to the difference of purposes, the clear water after filtering can also be formed through nanofiltration and reverse osmosis module, electrodialysis process again can be for the water of living.And the coal slime particle after sedimentation in settling bowl is carried out to press filtration treatment process, and can reclaim macrobead coal slime, realize energy-saving and emission-reduction.The treatment process that micro-filtration and ultra-filtration membrane device, nanofiltration and reverse osmosis module, electrodialysis adopt adopts membrane treatment process, has technical process short, simple to operate, level of automation is high, saves labor force, reduces costs investment, the advantages such as the cleaning interval is long, and the rear flux recovery of cleaning is stable.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (4)
1. the treatment process of a coal slime reusing sewage, the device that the method adopts comprises: settling bowl, equalizing tank, coarse rack, sand filtering device, micro-filtration and ultra-filtration equipment, Rinsing Area, filter-pressing device and nanofiltration and reverse osmosis module, electrodialysis, described settling bowl connects equalizing tank by pipeline, equalizing tank connects coarse rack by pipeline, coarse rack connects sand filtering device by pipeline, sand filtering device connects micro-filtration and ultra-filtration equipment by pipeline, micro-filtration is connected Rinsing Area with ultra-filtration equipment by pipeline, micro-filtration is also connected settling bowl by pipeline with ultra-filtration equipment, micro-filtration is also connected nanofiltration and reverse osmosis module by pipeline with ultra-filtration equipment, it is characterized in that: described method comprises the steps: first coal slime sewage to be entered to settling bowl, flow into equalizing tank through sedimentation coal slime sewage after treatment, the coarse rack of flowing through successively again, sand filtering device, micro-filtration and ultra-filtration membrane device carry out filter process, clear water after filter process flows into Rinsing Area, and concentrated water drainage in micro-filtration and ultra-filtration equipment enters settling bowl, carry out again next round filtration treatment, coal slime particle after sedimentation in described settling bowl is carried out to press filtration processing, the water outlet of pressure-filtering process is carried out filtration treatment after entering settling bowl again, and the coal slime being press-filtered out is carried out to recycling, clear water from described micro-filtration and ultra-filtration equipment filtration is passed through to nanofiltration and reverse osmosis module again, electrodialysis process, the clear water forming enters another Rinsing Area, micro-filtration and ultra-filtration equipment, nanofiltration and reverse osmosis module, the treatment process that electrodialysis adopts is membrane treatment process, and described micro-filtration and hyperfiltration membrane assembly adopt cross flow filter mode, when the standard water production rate of nanofiltration and reverse osmosis module reduces more than 10%, when the saturating salt rate increase by 5% of standard is above, carrying out nanofiltration and reverse osmosis module cleans, in the time that the clear liquid flux of described micro-filtration and ultra-filtration equipment drops to set(ting)value, thereby can carry out back flushing recovery flux to micro-filtration and ultra-filtration equipment, if the clear liquid flux after back flushing in micro-filtration and ultra-filtration equipment still can not return to set(ting)value, thereby can carry out matting recovery flux to this micro-filtration and ultra-filtration equipment, when the clear liquid flux of described micro-filtration and ultra-filtration equipment drop to initial flux 60%～80% time, open back flushing micro-filtration and ultra-filtration equipment.
2. the treatment process of a kind of coal slime reusing sewage according to claim 1, is characterized in that: the filter process being made up of described equalizing tank, coarse rack, sand filtering device, micro-filtration and ultra-filtration equipment assembly is more than or equal to one group.
3. the treatment process of a kind of coal slime reusing sewage according to claim 2, is characterized in that: the filtering membrane of described micro-filtration and ultra-filtration equipment is ceramic membrane or organic membrane, and film surface apertures is 0.01-1.0 μ m.
4. the treatment process of a kind of coal slime reusing sewage according to claim 1, is characterized in that: the backwashing water that described back flushing is used is the clear water after filtering, and recoil pressure reduction is 0.1～0.3MPa, and the recoil time is 1～60s.
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| CN105668864A (en) * | 2014-11-19 | 2016-06-15 | 中国石油化工股份有限公司 | Unconventional oil field exploration and development fracturing flowback fluid reuse treatment method |
| CN105668862B (en) * | 2016-04-15 | 2018-11-09 | 林淑录 | The recovery method of the waste water containing sodium hydroxide in a kind of silicon chip production process |
| CN108503148A (en) * | 2018-05-18 | 2018-09-07 | 河南锦源环保科技有限公司 | A kind of New Coal Mine mine water Integrated Processing Unit |
| CN110759507A (en) * | 2019-11-18 | 2020-02-07 | 扬州兄弟环境保护设备工程有限公司 | Method for purifying water in mine |
| CN112142164B (en) * | 2020-09-23 | 2023-01-17 | 南京碧盾环保科技股份有限公司 | Recycling method of tailings |
| CN112679020B (en) * | 2020-12-25 | 2022-05-03 | 成都硕特科技股份有限公司 | Low-cost shale gas fracturing flowback fluid treatment system and treatment method |
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| US6162361A (en) * | 1996-02-14 | 2000-12-19 | Adiga; Mahabala R. | Plating waste water treatment and metals recovery system |
| CN2818473Y (en) * | 2005-04-07 | 2006-09-20 | 凯膜过滤技术(上海)有限公司 | PVC centrifugal mother liquid treater |
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Address after: 201201 Shanghai, Pudong New Area Jin Tang Road, No. 2, block B, 145 Patentee after: SHANGHAI ANHORN ENVIRONMENTAL TECHNOLOGY CO., LTD. Address before: 201201 Shanghai, Pudong New Area Jin Tang Road, No. 2, block B, 145 Patentee before: Shanghai Anhorn Mechanical Equipment Co., Ltd. |