CN103030237A - 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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- CN103030237A CN103030237A CN2012105925052A CN201210592505A CN103030237A CN 103030237 A CN103030237 A CN 103030237A CN 2012105925052 A CN2012105925052 A CN 2012105925052A CN 201210592505 A CN201210592505 A CN 201210592505A CN 103030237 A CN103030237 A CN 103030237A
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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 present invention relates to a kind for the treatment of unit and treatment process of reusing sewage, it is short to relate to specifically a kind of technical process, simple to operate, and level of automation is high, labor savings, treatment unit and the treatment process of the coal slime reusing sewage of reduction cost investment.
Background technology
The main source of coal slime sewage is down-hole water seepage in the process of coal mining, owing to can not get well processing a large amount of dischargings, 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, the flocculence floor space is large, serviceability is poor, the regular job complex management, come the water water quality impact large, consume pharmaceutical quantities water large, after processing and can only discharge or simple purposes, can't be used for the higher places of water quality requirement such as domestic water.
Summary of the invention
For the defective of existing coal slime sewage water treatment method, the invention reside in provides a kind of technical process short, simple to operate, and level of automation is high, labor savings, treatment unit and the treatment process of the coal slime reusing sewage of reduction cost investment.
In order to realize the foregoing invention purpose, 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 also is connected settling bowl by pipeline with ultra-filtration equipment, and micro-filtration also is connected the dialysis treatment unit by pipeline with ultra-filtration equipment.
A kind of method of utilizing said apparatus to process the coal slime reusing sewage, described method comprises the steps: at first coal slime sewage to be entered settling bowl, coal slime sewage after sedimentation is processed flows into equalizing tank, flow through successively again coarse rack, sand filtering device, micro-filtration or ultra-filtration membrane device carries out filter process, flow into Rinsing Area through the clear water after the filter process, and the concentrated water drainage in micro-filtration and the ultra-filtration equipment enters settling bowl, carries out the next round filtration treatment again.
In specific embodiments of the invention, the coal slime particle after the sedimentation in the described settling bowl to be carried out press filtration process, the water outlet of pressure-filtering process is carried out filtration treatment after entering settling bowl again, and the coal slime that is press-filtered out is carried out recycling.
In specific embodiments of the invention, the filter process that is comprised 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 after will filtering from described micro-filtration and ultra-filtration equipment passes through nanofiltration or reverse osmosis module, electrodialysis process again, and 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 are adopted is membrane treatment process, and described micro-filtration or hyperfiltration membrane assembly adopt the cross flow filter mode, when the standard water production rate of nanofiltration and reverse osmosis module reduces by 10% or more, the saturating salt rate of standard increases by 5% when above, carry out the cleaning of nanofiltration and reverse osmosis module.
In specific embodiments of the invention, the filtering membrane of described micro-filtration and ultra-filtration equipment is ceramic membrane or organic membrane, and the film surface apertures is 0.01-1.0 μ m.
In specific embodiments of the invention, when 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 the back flushing in micro-filtration and the 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% the time, open back flushing micro-filtration and ultra-filtration equipment.
In specific embodiments of the invention, the employed back flushing of described back flushing 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 employing are flowed through sewage successively and are fallen the pond, equalizing tank, the method that coarse rack, sand filtration, micro-filtration/hyperfiltration membrane assembly carry out filter process changes sewage into and can be used as greening water, landscape water, service water, wash water, according to the difference of purposes, the clear water after filtering can also be formed with reverse osmosis module, electrodialysis process through nanofiltration again can be for the water of living.And the coal slime particle after the sedimentation in the settling bowl carried out the press filtration treatment process, and can reclaim the macrobead coal slime, realized energy-saving and emission-reduction.The treatment process that micro-filtration and ultra-filtration membrane device, nanofiltration and reverse osmosis module, electrodialysis are adopted adopts membrane treatment process, has the technical process weak point, and is simple to operate, level of automation is high, and labor savings reduces cost investment, the advantages such as the cleaning interval is long, and the rear flux recovery of cleaning is stable.
Description of 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 purpose 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: at first coal slime sewage is entered settling bowl, coal slime sewage after sedimentation is processed flows into equalizing tank regulating water quality pH value, then the coarse rack of flowing through filters large particulate matter, carries out filter process through sand filtering device, micro-filtration and ultra-filtration equipment again, flows into Rinsing Area through the clear water after the filter process, and the concentrated water drainage in micro-filtration and the ultra-filtration equipment enters settling bowl, carries out the next round filtration treatment again.
Coal slime particle after the sedimentation in the settling bowl is carried out press filtration process, the water outlet of pressure-filtering process is carried out filtration treatment after entering settling bowl again, and the coal slime that is press-filtered out is carried out recycling.
In specific embodiment, can be according to the size for the treatment of capacity, be set to 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 after micro-filtration and the filtration of ultra-filtration membrane device can be passed through again 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 are adopted is membrane treatment process, and micro-filtration and ultra-filtration membrane device adopt the cross flow filter mode, the filtering membrane of micro-filtration and ultra-filtration equipment is ceramic membrane or organic membrane, and the film surface apertures is 0.01-1.0 μ m.
When 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 the back flushing in micro-filtration and the 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% the time, beginning back flushing micro-filtration and ultra-filtration equipment.
The employed back flushing of back flushing 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 by 10% or more, the saturating salt rate of standard increases by 5% when above, carry out the cleaning of nanofiltration and reverse osmosis module, the special cleaning that selected scavenging solution employing configures.
The treatment unit of coal slime reusing sewage provided by the invention and treatment process employing are flowed through sewage successively and are fallen the pond, equalizing tank, the method that coarse rack, sand filtration, micro-filtration/hyperfiltration membrane assembly carry out filter process changes sewage into and can be used as greening water, landscape water, service water, wash water, according to the difference of purposes, the clear water after filtering can also be formed with reverse osmosis module, electrodialysis process through nanofiltration again can be for the water of living.And the coal slime particle after the sedimentation in the settling bowl carried out the press filtration treatment process, and can reclaim the macrobead coal slime, realized energy-saving and emission-reduction.The treatment process that micro-filtration and ultra-filtration membrane device, nanofiltration and reverse osmosis module, electrodialysis are adopted adopts membrane treatment process, has the technical process weak point, and is simple to operate, level of automation is high, and labor savings reduces cost 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 describes in above-described embodiment and the specification sheets 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 (10)
1. the treatment unit of a coal slime reusing sewage, it is characterized in that: 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 also is connected settling bowl by pipeline with ultra-filtration equipment, and micro-filtration also is connected the dialysis treatment unit by pipeline with ultra-filtration equipment.
2. method of utilizing device in the claim 1 to process the coal slime reusing sewage, it is characterized in that: described method comprises the steps: at first coal slime sewage to be entered settling bowl, coal slime sewage after sedimentation is processed flows into equalizing tank, flow through successively again coarse rack, sand filtering device, micro-filtration or ultra-filtration membrane device carries out filter process, flow into Rinsing Area through the clear water after the filter process, and the concentrated water drainage in micro-filtration and the ultra-filtration equipment enters settling bowl, carries out the next round filtration treatment again.
3. method according to claim 2 is characterized in that: the coal slime particle after the sedimentation in the described settling bowl is carried out press filtration process, the water outlet of pressure-filtering process is carried out filtration treatment after entering settling bowl again, and the coal slime that is press-filtered out is carried out recycling.
4. method according to claim 2 is characterized in that: the filter process that is comprised of described equalizing tank, coarse rack, sand filtering device, micro-filtration and ultra-filtration equipment assembly is more than or equal to one group.
5. method according to claim 2 is characterized in that: the clear water after will filtering from described micro-filtration and ultra-filtration equipment passes through nanofiltration or reverse osmosis module, electrodialysis process again, and the clear water of formation enters another Rinsing Area.
6. according to claim 2 or 5 described methods, it is characterized in that: the treatment process that described micro-filtration and ultra-filtration equipment, nanofiltration and reverse osmosis module, electrodialysis are adopted is membrane treatment process, and described micro-filtration or hyperfiltration membrane assembly adopt the cross flow filter mode, when the standard water production rate of nanofiltration and reverse osmosis module reduces by 10% or more, the saturating salt rate of standard increases by 5% when above, carry out the cleaning of nanofiltration and reverse osmosis module.
7. method according to claim 6, it is characterized in that: the filtering membrane of described micro-filtration and ultra-filtration equipment is ceramic membrane or organic membrane, the film surface apertures is 0.01-1.0 μ m.
8. method according to claim 2, it is characterized in that: when 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 the back flushing in micro-filtration and the 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.
9. method according to claim 8 is characterized in that: when the clear liquid flux of described micro-filtration and ultra-filtration equipment drop to initial flux 60% ~ 80% the time, open back flushing micro-filtration and ultra-filtration equipment.
10. method according to claim 9 is characterized in that: the employed back flushing of described back flushing 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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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN105668862A (en) * | 2016-04-15 | 2016-06-15 | 林淑录 | Method for recycling sodium hydroxide containing waste water in silicon wafer 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 |
| CN112142164A (en) * | 2020-09-23 | 2020-12-29 | 南京碧盾环保科技股份有限公司 | Recycling method of tailings |
| CN112679020A (en) * | 2020-12-25 | 2021-04-20 | 成都硕特环保科技有限公司 | Low-cost shale gas fracturing flowback fluid treatment system and treatment method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN105668862A (en) * | 2016-04-15 | 2016-06-15 | 林淑录 | Method for recycling sodium hydroxide containing waste water in silicon wafer 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 |
| CN112142164A (en) * | 2020-09-23 | 2020-12-29 | 南京碧盾环保科技股份有限公司 | Recycling method of tailings |
| CN112679020A (en) * | 2020-12-25 | 2021-04-20 | 成都硕特环保科技有限公司 | Low-cost shale gas fracturing flowback fluid treatment system and treatment method |
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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. |