CN104118949A - A cold-rolling wastewater treating process - Google Patents
A cold-rolling wastewater treating process Download PDFInfo
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- CN104118949A CN104118949A CN201410313424.3A CN201410313424A CN104118949A CN 104118949 A CN104118949 A CN 104118949A CN 201410313424 A CN201410313424 A CN 201410313424A CN 104118949 A CN104118949 A CN 104118949A
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- water
- backwash
- enters
- activated carbon
- ozone contact
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- 239000002351 wastewater Substances 0.000 title claims abstract description 28
- 238000005097 cold rolling Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000008569 process Effects 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 52
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000006243 chemical reaction Methods 0.000 claims description 21
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 17
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 17
- 239000004571 lime Substances 0.000 claims description 17
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000005189 flocculation Methods 0.000 claims description 6
- 230000016615 flocculation Effects 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 238000004065 wastewater treatment Methods 0.000 claims description 6
- 238000005345 coagulation Methods 0.000 claims description 4
- 230000015271 coagulation Effects 0.000 claims description 4
- 238000006386 neutralization reaction Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000011001 backwashing Methods 0.000 abstract 3
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Water Treatment By Sorption (AREA)
Abstract
A cold-rolling wastewater treating process is disclosed. The treating process includes: subjecting cold-rolling wastewater to deep treatment by utilization of a multi-media filter, an ozone contact reacting tower, a middle water tank and a biological active carbon filter tank; and cleaning the multi-media filter, the ozone contact reacting tower and the biological active carbon filter tank through a gas-water alternative backwashing manner. A draught fan provides a gas source. Backwashing water is provided by pumping out water in a water tank by a backwashing pump so that the water is reutilized, thus achieving an effect of energy conservation and emission reduction. The process has characteristics of simple equipment, reliable running and ideal treating effects. After treatment by the process, the CODcr of discharged water is lower than 30 mg/L and the SS is lower than 10 mg/L, thus meeting discharging requirements. In addition, the discharged water can be reutilized, the quality of the discharged water can guarantee stable working of a subsequent reutilization process, and reduce the load of subsequent equipment.
Description
Technical field
The present invention relates to field of waste water treatment, be specially a kind of cold rolling wastewater treatment process.
Background technology
Cold rolling wastewater character, the water yield and range of product and processing condition are in close relations, mainly comprise three kinds of waste water: oil-containing and emulsifying liquid waste water, acidic and alkaline waste water, chromate waste water etc.
The treatment process of cold rolling wastewater routine is directly discharge after neutralization, coagulation, air supporting, catalytic oxidation, precipitation, filtration reach wastewater discharge standard.
China has strengthened the dynamics of environmental protection in recent years, requires more and more highlyer, and each place Environmental Protection Agency is active response promulgate new emission standard also.Owing to processing (pre-treatment+biochemical process+sloping plate deposition) through common process, water outlet CODcr content reaches 80～100mg/L, has not reached new emission standard at present.
Summary of the invention
The technical problem to be solved in the present invention is to overcome existing defect, and a kind of cold rolling wastewater treatment process is provided.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
The waste water producing in cold-rolling process is processed through following concrete steps:
1) by the cold rolling wastewater after cooling, neutralization reaction, coagulation, air supporting, biochemistry, in inclined-plate clarifying basin, precipitate, remove the suspended sediment in water, then through the first transfer lime, enter more medium filter.On the first transfer lime, be provided with flocculation agent chemicals dosing plant, before entering more medium filter, add appropriate flocculation agent PAC, cold rolling wastewater cold rolling wastewater in more medium filter grades to act on through absorption, sedimentation, mechanical picker and removes SS, colloid and part COD in water.
2) water outlet after more medium filter is processed enters ozone contact reaction tower through the second transfer lime.Under the combined action of ozone, catalyzer, difficult biochemical substances inorganicization of part or be degraded to can biochemical substances in cold rolling wastewater, larger molecular organics is decomposed into small organic molecule, significantly improve the B/C ratio of waste water, strengthen rear class biological activated carbon filter to organic removal ability, thereby reach the object of COD in effective removal waste water.
3) water outlet after ozone contact reaction tower is processed enters intermediate pool through the 3rd transfer lime, carries out buffer memory, and makes ozone residual in waste water carry out self-decomposition, to eliminate the impact on rear class biochemical system.
4) water outlet of carrying out buffer memory through intermediate pool enters biological activated carbon filter through the middle water pump on the 4th transfer lime; Biological activated carbon filter is the organism in planar water first, then the organism of absorption is degraded again, thereby removes the COD in water, and last water outlet enters outlet sump.
5) water outlet after biological activated carbon filter is processed enters outlet sump through the 5th transfer lime.
6) air-water of more medium filter, ozone contact reaction tower and biological activated carbon filter is replaced to backwash; Backwash water pump extracts the water in pond more medium filter, ozone contact reaction tower and biological activated carbon filter is washed; Backwash water enters biological activated carbon filter through backwash water house steward and the first backwash arm, through the first backwash delivery pipe, discharges; Backwash water enters ozone contact reaction tower through backwash water house steward and the second backwash arm, through the second backwash delivery pipe, discharges; Backwash water enters more medium filter through backwash water house steward and the 3rd backwash arm, through the 3rd backwash delivery pipe, discharges; Blower fan provides source of the gas by inlet manifold for more medium filter, ozone contact reaction tower and biological activated carbon filter, wherein source of the gas enters more medium filter by the first inlet pipe, by the second inlet pipe, enter biological activated carbon filter, the oxygen that ozonizer produces enters ozone contact reaction tower by ozone inlet manifold.
The beneficial effect of cold rolling wastewater technique of the present invention is:
This processing unit is simple, reliable, ideal treatment effect.After this art breading, the CODcr of water outlet is less than 30mg/L, and SS is less than 10mg/L, reaches emission request.If effluent reuse, effluent quality can guarantee the steady operation of follow-up reuse technology, reduces the load of follow-up equipment.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, for explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention.
Fig. 1 is process flow sheet of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
As shown in Figure 1, a kind of cold rolling wastewater treatment process, comprises the steps:
1) by the cold rolling wastewater after cooling, neutralization reaction, coagulation, air supporting, biochemistry, in inclined-plate clarifying basin, precipitate, get rid of suspended sediment, then through the first transfer lime 1, enter more medium filter 3.On the first transfer lime 1, be provided with flocculation agent chemicals dosing plant 2, before entering more medium filter 3, add appropriate flocculation agent PAC, cold rolling wastewater cold rolling wastewater in more medium filter grades to act on through absorption, sedimentation, mechanical picker and removes SS, colloid and part COD in cold rolling wastewater.
2) water outlet after more medium filter 3 is processed enters ozone contact reaction tower 5 through the second transfer lime 4.Under the combined action of ozone, catalyzer, difficult biochemical substances inorganicization of part or be degraded to can biochemical substances in cold rolling wastewater, larger molecular organics is decomposed into small organic molecule, significantly improve the B/C ratio of waste water, strengthen rear class biological activated carbon filter to organic removal ability, thereby reach the object of COD in effective removal waste water.
3) water outlet after ozone contact reaction tower 5 is processed enters intermediate pool 7 through the 3rd transfer lime 6, carries out buffer memory, and makes ozone residual in waste water carry out self-decomposition, to eliminate the impact on rear class biochemical system.
4) water outlet of carrying out buffer memory through intermediate pool 7 enters biological activated carbon filter 10 through the middle water pump 8 on the 4th transfer lime 9; First biological activated carbon filter 10 adsorbs the organism in waste water, then again to absorption organism degrade, thereby remove the COD in water, last water outlet enters outlet sump 12.
5) water outlet after biological activated carbon filter 10 is processed enters outlet sump 12 through the 5th transfer lime 11.
6) air-water of more medium filter 3, ozone contact reaction tower 5 and biological activated carbon filter 10 is replaced to backwash; Backwash water pump 13 extracts the water in pond 12 more medium filter 3, ozone contact reaction tower 5 and biological activated carbon filter 10 is washed; Backwash water enters biological activated carbon filter 10 through backwash water house steward 14 and the first backwash arm 15, through the first backwash delivery pipe 17, discharges; Backwash water enters ozone contact reaction tower 5 through backwash water house steward 14 and the second backwash arm 18, through the second backwash delivery pipe 19, discharges; Backwash water enters more medium filter 3 through backwash water house steward 14 and the 3rd backwash arm 22, through the 3rd backwash delivery pipe 20, discharges; Blower fan provides source of the gas by inlet manifold 23 for more medium filter 3, ozone contact reaction tower 5 and biological activated carbon filter 10, wherein source of the gas enters more medium filter 3 by the first inlet pipe 21, by the second inlet pipe 16, enter biological activated carbon filter 10, the oxygen that ozonizer produces enters ozone contact reaction tower 5 by ozone inlet manifold 24.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (1)
1. a cold rolling wastewater treatment process, is characterized in that comprising the following steps:
(1) by the cold rolling wastewater after cooling, neutralization reaction, coagulation, air supporting, biochemistry, in inclined-plate clarifying basin, precipitate, then through the first transfer lime, enter more medium filter, enter before more medium filter and add appropriate flocculation agent PAC by flocculation agent chemicals dosing plant;
(2) water outlet after more medium filter is processed enters ozone contact reaction tower through the second transfer lime;
(3) water outlet after ozone contact reaction tower is processed enters intermediate pool through the 3rd transfer lime, carries out buffer memory;
(4) water outlet of carrying out buffer memory through intermediate pool enters biological activated carbon filter through the middle water pump on the 4th transfer lime;
(5) water outlet after biological activated carbon filter is processed enters outlet sump through the 5th transfer lime;
(6) air-water of more medium filter, ozone contact reaction tower and biological activated carbon filter is replaced to backwash;
Backwash water pump extracts the water in pond more medium filter, ozone contact reaction tower and biological activated carbon filter is washed; Backwash water enters biological activated carbon filter through backwash water house steward and the first backwash arm, through the first backwash delivery pipe, discharges; Backwash water enters ozone contact reaction tower through backwash water house steward and the second backwash arm, through the second backwash delivery pipe, discharges; Backwash water enters more medium filter through backwash water house steward and the 3rd backwash arm, through the 3rd backwash delivery pipe, discharges;
Blower fan provides source of the gas by inlet manifold for more medium filter, ozone contact reaction tower and biological activated carbon filter, wherein source of the gas enters more medium filter by the first inlet pipe, by the second inlet pipe, enter biological activated carbon filter, the oxygen that ozonizer produces enters ozone contact reaction tower by ozone inlet manifold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410313424.3A CN104118949A (en) | 2014-07-02 | 2014-07-02 | A cold-rolling wastewater treating process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410313424.3A CN104118949A (en) | 2014-07-02 | 2014-07-02 | A cold-rolling wastewater treating process |
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| Publication Number | Publication Date |
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| CN104118949A true CN104118949A (en) | 2014-10-29 |
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| CN201410313424.3A Pending CN104118949A (en) | 2014-07-02 | 2014-07-02 | A cold-rolling wastewater treating process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106977025A (en) * | 2016-01-15 | 2017-07-25 | 宝山钢铁股份有限公司 | Organic pollutant degradation method and device in a kind of emulsion Aerobic Pond water outlet |
| CN106977005A (en) * | 2016-01-19 | 2017-07-25 | 宝山钢铁股份有限公司 | A kind of processing method and processing unit of cold rolling diluted alkaline discharged wastewater met the national standard |
| CN107758913A (en) * | 2016-08-19 | 2018-03-06 | 宝山钢铁股份有限公司 | A kind of method and apparatus for removing total organic carbon in cold rolling acid waste water |
| CN113511740A (en) * | 2021-05-11 | 2021-10-19 | 山东泰山轧钢有限公司 | Secondary demulsification treatment method for cold rolling oily wastewater |
| CN118305179A (en) * | 2024-03-29 | 2024-07-09 | 广西广投正润新材料科技有限公司 | Method for improving uneven oil on surface of electronic aluminum foil |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07236883A (en) * | 1994-02-28 | 1995-09-12 | Toshiba Corp | Water treatment equipment |
| CN1435386A (en) * | 2002-12-06 | 2003-08-13 | 李宁 | Process for deep treating sewage and reuse |
| JP3658543B2 (en) * | 2001-03-08 | 2005-06-08 | 株式会社東芝 | Advanced water treatment method and treatment system |
| CN201347397Y (en) * | 2008-12-30 | 2009-11-18 | 中冶南方工程技术有限公司 | Cold rolling, silicon iron diluted alkaline advanced waste treatment apparatus |
| CN201634524U (en) * | 2009-12-25 | 2010-11-17 | 上海亚同环保实业股份有限公司 | Advanced treatment equipment for refinery sewage |
| CN101891354A (en) * | 2010-07-29 | 2010-11-24 | 中冶南方工程技术有限公司 | Process of treating cold rolling waste water by ozone reaction and activated carbon filtration |
| CN102107958A (en) * | 2009-12-25 | 2011-06-29 | 上海亚同环保实业股份有限公司 | Method for performing advanced treatment and reuse on oil-refining sewage and matched device |
| CN201901624U (en) * | 2010-12-10 | 2011-07-20 | 吉林市世纪华扬环境工程有限公司 | Ultra-thick oil refining sewage treatment device |
| CN203715401U (en) * | 2013-11-14 | 2014-07-16 | 西安上尚机电有限公司 | Swimming pool water purifying device |
-
2014
- 2014-07-02 CN CN201410313424.3A patent/CN104118949A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07236883A (en) * | 1994-02-28 | 1995-09-12 | Toshiba Corp | Water treatment equipment |
| JP3658543B2 (en) * | 2001-03-08 | 2005-06-08 | 株式会社東芝 | Advanced water treatment method and treatment system |
| CN1435386A (en) * | 2002-12-06 | 2003-08-13 | 李宁 | Process for deep treating sewage and reuse |
| CN201347397Y (en) * | 2008-12-30 | 2009-11-18 | 中冶南方工程技术有限公司 | Cold rolling, silicon iron diluted alkaline advanced waste treatment apparatus |
| CN201634524U (en) * | 2009-12-25 | 2010-11-17 | 上海亚同环保实业股份有限公司 | Advanced treatment equipment for refinery sewage |
| CN102107958A (en) * | 2009-12-25 | 2011-06-29 | 上海亚同环保实业股份有限公司 | Method for performing advanced treatment and reuse on oil-refining sewage and matched device |
| CN101891354A (en) * | 2010-07-29 | 2010-11-24 | 中冶南方工程技术有限公司 | Process of treating cold rolling waste water by ozone reaction and activated carbon filtration |
| CN201901624U (en) * | 2010-12-10 | 2011-07-20 | 吉林市世纪华扬环境工程有限公司 | Ultra-thick oil refining sewage treatment device |
| CN203715401U (en) * | 2013-11-14 | 2014-07-16 | 西安上尚机电有限公司 | Swimming pool water purifying device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106977025A (en) * | 2016-01-15 | 2017-07-25 | 宝山钢铁股份有限公司 | Organic pollutant degradation method and device in a kind of emulsion Aerobic Pond water outlet |
| CN106977025B (en) * | 2016-01-15 | 2020-12-22 | 宝山钢铁股份有限公司 | A kind of method and device for degrading organic pollutants in effluent of emulsion aerobic tank |
| CN106977005A (en) * | 2016-01-19 | 2017-07-25 | 宝山钢铁股份有限公司 | A kind of processing method and processing unit of cold rolling diluted alkaline discharged wastewater met the national standard |
| CN106977005B (en) * | 2016-01-19 | 2020-09-25 | 宝山钢铁股份有限公司 | Treatment method and treatment device for standard discharge of cold rolling dilute alkali wastewater |
| CN107758913A (en) * | 2016-08-19 | 2018-03-06 | 宝山钢铁股份有限公司 | A kind of method and apparatus for removing total organic carbon in cold rolling acid waste water |
| CN113511740A (en) * | 2021-05-11 | 2021-10-19 | 山东泰山轧钢有限公司 | Secondary demulsification treatment method for cold rolling oily wastewater |
| CN118305179A (en) * | 2024-03-29 | 2024-07-09 | 广西广投正润新材料科技有限公司 | Method for improving uneven oil on surface of electronic aluminum foil |
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Application publication date: 20141029 |