CN1810671A - Mine water deeply purifying method and apparatus - Google Patents
Mine water deeply purifying method and apparatus Download PDFInfo
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- CN1810671A CN1810671A CN 200510002687 CN200510002687A CN1810671A CN 1810671 A CN1810671 A CN 1810671A CN 200510002687 CN200510002687 CN 200510002687 CN 200510002687 A CN200510002687 A CN 200510002687A CN 1810671 A CN1810671 A CN 1810671A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000012528 membrane Substances 0.000 claims description 34
- 238000001728 nano-filtration Methods 0.000 claims description 14
- 238000001471 micro-filtration Methods 0.000 claims description 13
- 238000005189 flocculation Methods 0.000 claims description 11
- 230000016615 flocculation Effects 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims 2
- 239000011707 mineral Substances 0.000 claims 2
- 239000000835 fiber Substances 0.000 claims 1
- 239000008394 flocculating agent Substances 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 abstract 2
- 230000003311 flocculating effect Effects 0.000 abstract 2
- 239000002384 drinking water standard Substances 0.000 abstract 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 abstract 1
- 235000019341 magnesium sulphate Nutrition 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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Abstract
The present invention discloses one kind of mine water deeply purifying method and apparatus capable of purifying mine water to reach drinking water standard and utilizing mine water resource effectively. The method includes two parts, flocculating and microfiltering, and nanofiltering; and the corresponding apparatus includes a flocculating and microfiltering reactor and a nanofiltering film filter mainly. The main technological conditions include flocculant throwing amount of 5-30 mg/L, filtering diameter of the microfiltering film of 0.1-10 micron, negative pressure for sucking of 0.05-0.2 MPa, the MgSO4 intercepting rate of the nanofiltering film of 95.0-99.0 %, and operation pressure of 0.4-1.0 MPa. The present invention can realize automatic control and mobile treatment, and is suitable for deep purifying treatment of different types of mine water.
Description
Technical field
The present invention relates to a kind of method and device of waste water advanced purifying, relate in particular to a kind of method and device that is used for mine water deeply purifying.
Background technology
Pit water is the underground water of gushing out in the progress of coal mining, drains into aboveground ground after each gat, down-hole is concentrated to shaft sump.The most of mining areas of China all belong to areas of serious, pit water is carried out being back to life and production after the advanced treatment, not only can alleviate the problem of environmental pollution of pit water greatly, and can be the mining area and open up new water source, alleviate mining area water contradiction in short supply greatly.
Pit water water quality is subjected to the influence of factors such as geologic condition, coal seam characteristic, coal winning technology.Wherein mine water containing suspended substances and highly-mineralized mine water are the most general.Handle the flocculation-precipitation-filtration-sterilization process that adopt in China for the high suspended matter pit water at present, what have then is water clarifier or integral type water purifier etc. with this work simplification more.The problem that above-mentioned technology exists is: the sail floral structure of suspended substance and coagulating agent formation is loose in the water, and settling property is poor, so effluent quality is subjected to the influence of dosage and sedimentation time bigger, and fluctuation is strong.For the pit water of high salinity, particularly high SO
4 2-Pit water adopts method such as press filtration after the chemical precipitation more, and the problem of this method is: chemical dosage is big, cost is high, technology is loaded down with trivial details, floor space is big and have the unmanageable problem of mud.Therefore therefore, develop a kind of pit water that is suitable for, particularly, save cost, guarantee effluent quality, have bigger Practical significance at the simplified method of the pit water of high suspended matter and high salinity.
Summary of the invention
The object of the present invention is to provide a kind of method and device that is used for mine water deeply purifying, can simplify the effluent quality long-term stability of technology, saving floor space and running cost, the dissimilar pit waters of assurance, also can realize automatization control and portable the processing.
The principle of technical solution of the present invention is: adopt to add flocculation agent and make suspended substance and organism and the larger-size flco of flocculation agent reaction formation in the pit water, carry out negative pressure-pumping by inner chamber in microfiltration membrane, form pressure reduction in the microfiltration membrane both sides, larger-size flco just can and be trapped within a side of film to the microfiltration membrane surface aggregation, simultaneously because the aperture of film is less, can directly realize bacterium in the water, the removal of virus, make that seeing through purifying waste water of film can directly be collected reuse, pit water for high salinity, then can enter into the nanofiltration membrane system again and carry out advanced desalination, final outflow water reaches answers the water water quality standard and by reuse.
The invention provides a kind of method that is used for mine water deeply purifying, this method comprises:
A. with flocculation reaction suspended substance in the pit water and organism and flocculation agent are reacted, and removed through the microfiltration membrane interception;
B. with nanofiltration membrane with the salinity in the pit water, particularly sulfate radical is removed.
In the method for the invention, described flocculation, be meant and in the aqueous solution, add flocculation agent, suspended substance in the water and partial organic substances can form larger-size flco because of Effect of Electric Double Layer and adsorption bridging effect, and then by sedimentation or filter the phenomenon remove from water, this can carry out by means commonly known in the art.
In the method for the invention, described micro-filtration and nanofiltration are meant feed liquid under pressure-driven, see through a kind of separation phenomenon of semi-permeable membranes, and this can carry out by means commonly known in the art.
The present invention is achieved in that
Make up special-purpose CMF reactor and nanofiltration device, pit water is reacted with the flocculation agent that adds in the CMF reactor in advance, be reflected under the outside stirring that intermittently blasts air and carry out, the effect of air-blowing also is can reduce the contamination and plugging on microfiltration membrane surface simultaneously.The larger-size flco that flocculation reaction forms under the effect of negative pressure at the microfiltration membrane surface aggregation and be trapped within a side of film, purify waste water and then can be collected reuse through film, pit water for high salinity, then can enter into the nanofiltration membrane system again and carry out advanced desalination, final outflow water reaches water quality standard for drinking water and by reuse.
Provide embodiment below and in conjunction with the accompanying drawings the present invention is done detailed explanation
Specific embodiment
Adopt the experimental installation of Figure of description, used hollow fiber microfiltration membrane is a polypropylene material, and the membrane area of assembly is 1.0m
2, used rolling nanofiltration membrane is a polyamide material, the membrane area of assembly is 2.6m
2
Operational conditions: (1) high suspended matter pit water only passes through the CMF reactor for treatment, no longer enters the nanofiltration membrane device.Polymerize aluminum chloride throwing amount 20ppm, suction negative pressure 0.05MPa.Water quality situation before and after handling sees Table one.
(2) after the high-sulfate pit water process CMF reactor for treatment, enter the nanofiltration membrane device again and carry out desalting treatment.
Polymerize aluminum chloride throwing amount 10ppm, suction negative pressure 0.05MPa, nanofiltration membrane operating pressure 0.7MPa.Water quality situation before and after handling sees Table two.
Table one high suspended matter pit water is through CMF reactor for treatment result
| Water-quality guideline | The pH value | Turbidity (degree) | CODcr (mg/l) | S 2- (mg/l) | F- (mg/l) | Oils (mg/l) | Total plate count (individual/L) | Total coliform number (individual/L) |
| Former water | 8.1 | 400 | 70 | 0.25 | 0.9 | 1.5 | 1.6×10 4 | 550 |
| Handle back water | 7.2 | 1 | 8 | 0.2 | 0.8 | Do not detect | 10 | Do not detect |
Table two high-sulfate pit water is through the CMF-NF result
| Water-quality guideline | The pH value | Turbidity (degree) | Ca 2+ (mg/l) | Mg 2+ (mg/1) | SO 4 2- (mg/l) | HCO 3 - (mg/l) | Salinity (mg/l) | Total hardness (mg/l) | Total alkalinity (mg/l) |
| Former water | 6.5 | ＞100 | 190 | 110 | 2100 | 650 | 3450 | 885 | 650 |
| Handle back water | 6.8 | 0 | 10 | 8 | 25 | 140 | 25 | 18 | 21 |
Claims (11)
1. method that is used for mine water deeply purifying, this method comprises:
A. with flocculation reaction suspended substance in the pit water and organism and flocculation agent are reacted, and removed through the microfiltration membrane interception;
B. with nanofiltration membrane with the salinity in the pit water, particularly sulfate radical is removed.
2. in accordance with the method for claim 1, it is characterized in that described flocculation agent is inorganic flocculating agent and organic floculant, is preferably polymerize aluminum chloride, preferred throwing amount is (5-30) mg/L.
3. in accordance with the method for claim 1, it is characterized in that the swabbing pressure of described flocculation-micro-filtration interception is (0.00～0.3) MPa, is preferably (0.05～0.2) MPa.
4. in accordance with the method for claim 1, it is characterized in that described nanofiltration working pressure is (0.1～1.5) MPa, be preferably (0.4～1.0) MPa.
5. in accordance with the method for claim 1, main device of the present invention comprises:
The a.CMF reactor;
The b.NF film filter.
6. according to the described device of claim 5, it is characterized in that the aperture of described microfiltration membrane is between (0.1～10) micron.
7. according to the described device of claim 5, it is characterized in that the mould material of described microfiltration membrane is mineral membrane, organic membrane, inorganic/organic hybrid films.
8. according to the described device of claim 5, it is characterized in that the kit form of described microfiltration membrane is tubular membrane, hollow-fibre membrane, flat sheet membrane, rolled film.
9. according to the described device of claim 5, it is characterized in that described nanofiltration membrane rejection is: to MgSO
4Hold back efficient for (95.0-99.0) %.
10. according to the described device of claim 5, it is characterized in that the mould material of described nanofiltration membrane is mineral membrane, organic membrane, inorganic/organic hybrid films.
11. according to the described device of claim 5, it is characterized in that, described nanofiltration membrane kit form be tubular membrane, flat sheet membrane, rolled film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100026873A CN100415658C (en) | 2005-01-26 | 2005-01-26 | Mine water deeply purifying method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100026873A CN100415658C (en) | 2005-01-26 | 2005-01-26 | Mine water deeply purifying method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1810671A true CN1810671A (en) | 2006-08-02 |
| CN100415658C CN100415658C (en) | 2008-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100026873A Expired - Fee Related CN100415658C (en) | 2005-01-26 | 2005-01-26 | Mine water deeply purifying method and apparatus |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439266C (en) * | 2006-08-04 | 2008-12-03 | 中国科学院地理科学与资源研究所 | Technique for treating mine water utilizing mine underground tunnel space |
| CN100503479C (en) * | 2006-12-01 | 2009-06-24 | 华中科技大学 | Movable and integral drinking water purifier |
| CN102229450A (en) * | 2010-07-09 | 2011-11-02 | 鞍钢集团矿业公司 | Integrated membrane purification technology for treating hematite dressing wastewater |
| CN102491564A (en) * | 2011-12-23 | 2012-06-13 | 中国矿业大学(北京) | Comprehensive recycling technology for mine water with high suspended matter content and high mineralization degree |
| CN101544431B (en) * | 2009-05-12 | 2012-07-18 | 王建刚 | Process for treating mine water in high efficiency |
| CN101712516B (en) * | 2009-11-25 | 2012-08-08 | 煤炭科学研究总院杭州环境保护研究所 | Device and method for deeply treating mine water for underground coal mine |
| CN109107396A (en) * | 2018-08-20 | 2019-01-01 | 南京工业大学 | A method of mine water is handled using fly ash base microfiltration membranes negative-pressure ward |
| CN112794496A (en) * | 2020-12-25 | 2021-05-14 | 国家能源投资集团有限责任公司 | Method and system for removing suspended matters and recycling coal slime from mine water |
| CN113429011A (en) * | 2021-06-03 | 2021-09-24 | 河北钢铁集团沙河中关铁矿有限公司 | Comprehensive treatment method for mine water of large water mine |
| CN114180775A (en) * | 2021-12-10 | 2022-03-15 | 华北理工大学 | Purification device for converting mine water into domestic water |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2512771Y (en) * | 2001-10-25 | 2002-09-25 | 上海大屯能源股份有限公司 | Combined water purifier for water treatment of mine well |
-
2005
- 2005-01-26 CN CNB2005100026873A patent/CN100415658C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439266C (en) * | 2006-08-04 | 2008-12-03 | 中国科学院地理科学与资源研究所 | Technique for treating mine water utilizing mine underground tunnel space |
| CN100503479C (en) * | 2006-12-01 | 2009-06-24 | 华中科技大学 | Movable and integral drinking water purifier |
| CN101544431B (en) * | 2009-05-12 | 2012-07-18 | 王建刚 | Process for treating mine water in high efficiency |
| CN101712516B (en) * | 2009-11-25 | 2012-08-08 | 煤炭科学研究总院杭州环境保护研究所 | Device and method for deeply treating mine water for underground coal mine |
| CN102229450A (en) * | 2010-07-09 | 2011-11-02 | 鞍钢集团矿业公司 | Integrated membrane purification technology for treating hematite dressing wastewater |
| CN102491564A (en) * | 2011-12-23 | 2012-06-13 | 中国矿业大学(北京) | Comprehensive recycling technology for mine water with high suspended matter content and high mineralization degree |
| CN102491564B (en) * | 2011-12-23 | 2014-01-15 | 中国矿业大学(北京) | Comprehensive recycling technology for mine water with high suspended matter content and high mineralization degree |
| CN109107396A (en) * | 2018-08-20 | 2019-01-01 | 南京工业大学 | A method of mine water is handled using fly ash base microfiltration membranes negative-pressure ward |
| CN112794496A (en) * | 2020-12-25 | 2021-05-14 | 国家能源投资集团有限责任公司 | Method and system for removing suspended matters and recycling coal slime from mine water |
| CN113429011A (en) * | 2021-06-03 | 2021-09-24 | 河北钢铁集团沙河中关铁矿有限公司 | Comprehensive treatment method for mine water of large water mine |
| CN114180775A (en) * | 2021-12-10 | 2022-03-15 | 华北理工大学 | Purification device for converting mine water into domestic water |
| CN114180775B (en) * | 2021-12-10 | 2023-04-25 | 华北理工大学 | Purification device for converting mine water into domestic water |
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| Publication number | Publication date |
|---|---|
| CN100415658C (en) | 2008-09-03 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Mine Waste Technology Co., Ltd. Assignor: Menghong|Lisheng|Niu Jinhui Contract fulfillment period: 2008.12.17 to 2018.12.17 contract change Contract record no.: 2009990000429 Denomination of invention: Mine water deeply purifying method and apparatus Granted publication date: 20080903 License type: Exclusive license Record date: 2009.5.6 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.12.17 TO 2018.12.17; CHANGE OF CONTRACT Name of requester: BEIJING MAIWEISITE SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20090506 |
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Owner name: BEIJING MAIWEISITE SCIENCE + TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: MENG HONG Effective date: 20100129 |
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Effective date of registration: 20100129 Address after: Room 422A, building 151, No. 13, Jiuxianqiao Road, Beijing, Chaoyang District, China: 100016 Patentee after: Beijing Mine Waste Technology Co., Ltd. Address before: No. 15, Third Ring Road East, Chaoyang District, Beijing: 100029 Co-patentee before: Li Sheng Patentee before: Meng Hong Co-patentee before: Niu Jinhui |
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Granted publication date: 20080903 Termination date: 20120126 |