CN104445823A - System and method for eliminating foam in secondary sedimentation tank of wastewater treatment station in cold rolling plant - Google Patents
System and method for eliminating foam in secondary sedimentation tank of wastewater treatment station in cold rolling plant Download PDFInfo
- Publication number
- CN104445823A CN104445823A CN201410740773.3A CN201410740773A CN104445823A CN 104445823 A CN104445823 A CN 104445823A CN 201410740773 A CN201410740773 A CN 201410740773A CN 104445823 A CN104445823 A CN 104445823A
- Authority
- CN
- China
- Prior art keywords
- waste
- tank
- oily
- water
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/12—Prevention of foaming
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a system and method for eliminating foam in a secondary sedimentation tank of a wastewater treatment station in a cold rolling plant. The method comprises the steps of adding lime milk to neutralize acid-containing wastewater; controlling the pH value of the acid-containing wastewater at about 9.5; adding caustic soda into the demulsified oil-containing wastewater to regulate the pH value; controlling the pH value at 7-8; carrying out biochemical oxidation treatment on the regulated oil-containing wastewater; and mixing the acid-containing wastewater and the oil-containing wastewater subjected to biochemical oxidation treatment, reacting, and controlling the pH value of the mixed wastewater at 8.2-8.5. The system comprises an oil-containing regulating tank, a biochemical tank, an acid-containing regulating tank, a neutralization tank and a sedimentation tank. By using the system and the method, biochemical foam generated in the secondary sedimentation tank and the subsequent processes can be eliminated under the condition that no any agents are added, and the condition that foam in an outdoor sedimentation tank of a northern cold rolling plant is iced in winter can be effectively avoided.
Description
Technical field
The present invention relates to environmental technology field, particularly the removal of foam system of Wastewater from cold rolling treatment station second pond and method thereof.
Background technology
General cold rolling mill is primarily of formations such as sour rolling mill, process line units.A large amount of oily(waste)waters is produced between milling train, polishing machine, process line cleaning section and grinding roller, the lipoid cpd of a large amount of waxs is comprised in waste water, in order to the oil, the water that improve oil-containing equalizing tank are separated, improve oil skimming effect, oily(waste)water temperature is often heated to 50 DEG C, even if temperature also reaches 25 DEG C after cooling, cause nocardial amount reproduction in biological process, in aeration tank, second pond upper surface produces a large amount of dun bio foams; Meanwhile, containing a large amount of tensio-active agents in cleaning section oily(waste)water, second pond also can be caused to produce chemical foam.
Owing to there is biological and chemical foam simultaneously, by adding sterilant and water punching is all difficult to reach the object defoamed, be keep the normal operation of biochemistry pool at north of China, biochemistry pool is generally located at indoor, but second pond is generally located at outdoor.In the evening in winter of cold, second pond foam freezes very soon, causes face, pond to form large ice sheet, and cleaning is got up abnormal difficult, often causes waste water station to be paralysed.
Summary of the invention
For solving the problem, the invention provides a kind of can when not adding any medicament, eliminate biology, the chemical foam of second pond and subsequent handling, effectively avoid the removal of foam system and the method thereof of the Wastewater from cold rolling treatment station second pond that foam freezes in the outdoor settling bowl of north cold rolling mill in winter.
The removal of foam method of a kind of Wastewater from cold rolling treatment station second pond provided by the invention, comprising:
Is added milk of lime in the acid-bearing wastewater that cold rolling mill pickling section is produced to neutralize; The pH value of the acid-bearing wastewater after described neutralization controls about 9.5;
The oily(waste)water that cold rolling mill produces is added hydrochloric acid and flocculation agent carries out air supporting breakdown of emulsion; Oily(waste)water after described breakdown of emulsion is added caustic soda and carries out pH value adjustment; The pH value of the oily(waste)water after described adjustment controls 7 ~ 8;
Oily(waste)water after adjustment is carried out biochemical oxidation process;
Oily(waste)water after acid-bearing wastewater after described neutralization and described biochemistry is mixed and reacts; Mixed composite waste pH value controls 8.2 ~ 8.5;
Wherein, the Ca in the acid-bearing wastewater after described neutralization
2+, Fe
3+the residual anion surfactant of the oily(waste)water after positively charged ion and described biochemistry reacts, and the chemical foam of described oily(waste)water is controlled; Meanwhile, the acid-bearing wastewater after described neutralization mixes with the oily(waste)water after described biochemistry, improves the pH value of the oily(waste)water after described biochemistry, and then contains the bio foam that in described oily(waste)water, Nocardia bacteria causes.
The removing method of a kind of Wastewater from cold rolling treatment station second pond foam provided by the invention, the oily(waste)water that acid-bearing wastewater after lime slurry neutralization and cold rolling mill produce is mixed, improve the pH value of oily(waste)water, and then the bio foam that containment Nocardia bacteria causes, positively charged ion simultaneously in acid-bearing wastewater and the anion surfactant of oily(waste)water react the generation eliminating chemical foam, reduce the cost of sewage disposal, avoid the outdoor settling tank freezed in winter of northern cold rolling mill, also effectively raise the draining water-quality guideline of waste water processing station.
The removal of foam system of a kind of Wastewater from cold rolling treatment station second pond provided by the invention, comprising:
Oil-containing equalizing tank, for storing the described oily(waste)water after breakdown of emulsion; Described oil-containing equalizing tank can make described oily(waste)water homogeneous; The pH value adjustment process of described oily(waste)water is carried out in described oil-containing equalizing tank; Oily(waste)water after described breakdown of emulsion is added caustic soda and carries out pH value adjustment, make the pH value of the oily(waste)water after described adjustment control 7 ~ 8;
Biochemistry pool, for the organism in the oily(waste)water after adjustment described in biochemical oxidation;
Containing sour equalizing tank, for storing the acid-bearing wastewater that described cold rolling mill produces; Describedly can make described acid-bearing wastewater homogeneous containing sour equalizing tank;
Neutralization tank, for neutralizing the acid-bearing wastewater that described cold rolling mill produces; Described milk of lime is added in described neutralization tank, makes the pH value of described acid-bearing wastewater be controlled in about 9.5;
Settling tank, for mixing by the acid-bearing wastewater after described neutralization with the oily(waste)water after described biochemistry and react; Mixed composite waste pH value is controlled 8.2 ~ 8.5; The outlet of described settling tank and described biochemistry pool and the second neutralization tank.
As preferably, described neutralization tank comprises:
First neutralization tank, for neutralizing the acid-bearing wastewater that described cold rolling mill produces; Described milk of lime is added in described first neutralization tank, makes the pH value of described acid-bearing wastewater be controlled 7 ~ 9 by coarse adjustment;
Second neutralization tank, for neutralizing the acid-bearing wastewater that described first neutralization tank is sent; Described milk of lime is added in described second neutralization tank, the pH value of described acid-bearing wastewater is controlled about 9.5 by accurate adjustment.
As preferably, described the removal of foam system also comprises:
First waste water pump, for being transported in described biochemistry pool by the described oily(waste)water after the breakdown of emulsion in described oil-containing equalizing tank;
Second waste water pump, for being transported to described in described neutralization tank containing the acid-bearing wastewater in sour equalizing tank.
As preferably, describedly to comprise containing sour equalizing tank:
First containing sour equalizing tank, and described first is communicated with described first neutralization tank by described second waste water pump containing sour equalizing tank;
Second containing sour equalizing tank, and described second is communicated with described first neutralization tank by described second waste water pump containing sour equalizing tank.
As preferably, described biochemistry pool comprises:
First biochemistry pool, described first biochemistry pool is by described first waste water pump and described oil-containing equalizing tank outlet; Described first biochemistry pool is communicated with described settling tank;
Second biochemistry pool, described second biochemistry pool is by described first waste water pump and described oil-containing equalizing tank outlet; Described second biochemistry pool is communicated with described settling tank;
3rd biochemistry pool, described 3rd biochemistry pool is by described first waste water pump and described oil-containing equalizing tank outlet; Described 3rd biochemistry pool is communicated with described settling tank;
4th biochemistry pool, described 4th biochemistry pool is by described first waste water pump and described oil-containing equalizing tank outlet; Described 4th biochemistry pool is communicated with described settling tank.
As preferably, described the removal of foam system also comprises:
Sand filter, described sand filter is communicated with described settling tank;
Outer blowoff basin, described outer blowoff basin is communicated with described sand filter.
The removal of foam system of Wastewater from cold rolling treatment station second pond provided by the invention and method thereof, by being blended in settling tank containing the acid-bearing wastewater after the lime slurry neutralization in sour equalizing tank and biochemistry pool oily(waste)water out, improve the pH value of the oily(waste)water in settling tank, and then the bio foam that containment Nocardia bacteria causes, positively charged ion simultaneously in acid-bearing wastewater and the anion surfactant of oily(waste)water react the generation eliminating chemical foam, form the tiny mud of foam under the effect of acid-bearing wastewater high density sludge, mud is formed in settling tank, completely eliminate the foam in cold rolling mill oily(waste)water, two kinds of waste water react to each other and eliminate the root of foam generation, the foam of cold rolling mill settling tank is eliminated when not adding any medicament, reduce the cost of sewage disposal, avoid the outdoor settling tank freezed in winter of northern cold rolling mill, also the draining water-quality guideline of waste water processing station is effectively raised, ensure the physical and mental health of waste water station worker.
Accompanying drawing explanation
The structure diagram of the removal of foam system of the Wastewater from cold rolling treatment station second pond that Fig. 1 provides for the embodiment of the present invention.
(parts of wherein each label representative successively: oil-containing equalizing tank 1, first waste water pump 2, first biochemistry pool 3, second biochemistry pool 4, the 3rd biochemistry pool 5, the 4th biochemistry pool 6, settling tank 7, first containing sour equalizing tank 8, second containing sour equalizing tank 9, second waste water pump 10, first neutralization tank 11, second neutralization tank 12, sand filter 13, outer blowoff basin 14)
Embodiment
See accompanying drawing 1, the removal of foam method of Wastewater from cold rolling treatment station second pond provided by the invention, comprising:
Step S1: acid-bearing wastewater cold rolling mill pickling section produced is introduced containing sour equalizing tank, acid-bearing wastewater homogeneous is made containing sour equalizing tank, then by the second waste water pump 10, the acid-bearing wastewater after homogeneous is introduced neutralization tank, then in neutralization tank, add milk of lime acid-bearing wastewater is neutralized; Ensure that the pH value of the acid-bearing wastewater after neutralization controls about 9.5.
Step S2: the oily(waste)water produced by cold rolling mill introduces oil-containing equalizing tank 1, adds hydrochloric acid in oil-containing equalizing tank 1 and flocculation agent carries out air supporting breakdown of emulsion to oily(waste)water; Add caustic soda toward oily equalizing tank 1 again and pH value adjustment is carried out to the oily(waste)water after breakdown of emulsion; Ensure that the pH value of the oily(waste)water after adjustment controls 7 ~ 8, by the first waste water pump 2, the oily(waste)water after adjustment is introduced biochemistry pool afterwards.
Step S3: the oily(waste)water after adjustment is carried out biochemical oxidation process in biochemistry pool.
Step S4: the oily(waste)water after biochemistry in the acid-bearing wastewater after neutralization in neutralization tank and biochemistry pool is introduced settling tank 7, and two kinds of waste water mix formation composite waste, and composite waste can react; When mixing two kinds of waste water, ensure that mixed composite waste pH value controls 8.2 ~ 8.5.
Wherein, the Ca in the acid-bearing wastewater after neutralization
2+, Fe
3+the residual anion surfactant of the oily(waste)water after positively charged ion and biochemistry reacts, and the chemical foam of oily(waste)water is controlled.Meanwhile, the acid-bearing wastewater after neutralization mixes with the oily(waste)water after biochemistry, improves the pH value of the oily(waste)water after biochemistry, and then the bio foam that in containment oily(waste)water, Nocardia bacteria causes; The tiny mud forming foam forms mud under the effect of acid-bearing wastewater high density sludge.
The oily(waste)water that acid-bearing wastewater after lime slurry neutralization and cold rolling mill produce mixes by the removing method of Wastewater from cold rolling treatment station second pond foam provided by the invention, improve the pH value of oily(waste)water, and then the bio foam that containment Nocardia bacteria causes, positively charged ion simultaneously in acid-bearing wastewater and the anion surfactant of oily(waste)water react the generation eliminating chemical foam, reduce the cost of sewage disposal, avoid outdoor settling tank 7 freezed in winter of northern cold rolling mill, also effectively raise the draining water-quality guideline of waste water processing station.
See accompanying drawing 1, the system for realizing Wastewater from cold rolling treatment station second pond the removal of foam method provided by the invention, comprising:
Oil-containing equalizing tank 1, for storing cold rolling mill cleaning section, milling train produces and oily(waste)water after breakdown of emulsion air supporting; Oil-containing equalizing tank 1 can make oily(waste)water homogeneous; The pH value adjustment process of oily(waste)water is carried out in oil-containing equalizing tank 1; Oily(waste)water after breakdown of emulsion is added caustic soda and carries out pH value adjustment, the pH value of the oily(waste)water after adjusting is controlled 7 ~ 8.Wherein, air supporting breakdown of emulsion process is by adding hydrochloric acid and flocculation agent realization by oily(waste)water.
Biochemistry pool, for the organism in the oily(waste)water after biochemical oxidation adjustment.
Containing sour equalizing tank, for storing the acid-bearing wastewater that cold rolling mill produces; Acid-bearing wastewater homogeneous can be made containing sour equalizing tank.
Neutralization tank, in and cold rolling mill produce acid-bearing wastewater; Milk of lime is added in neutralization tank, make the pH value of acid-bearing wastewater be controlled in about 9.5.
Second waste water pump 10, for being transported to containing the acid-bearing wastewater in sour equalizing tank in the first neutralization tank 11.
Settling tank 7, for mixing by the acid-bearing wastewater after neutralization with the oily(waste)water after adjustment and react; Mixed composite waste pH value is controlled 8.2 ~ 8.5; The outlet of settling tank 7 and biochemistry pool and the second neutralization tank 12.In settling tank 7, the pH value of oily(waste)water is enhanced, and Nocardia bacteria is contained, bio foam is controlled; Ca in acid-bearing wastewater
2+, Fe
3+anion surfactant residual in positively charged ion and oily(waste)water reacts, and chemical foam is controlled.
As preferably, neutralization tank comprises:
First neutralization tank 11, in and cold rolling mill produce acid-bearing wastewater; Milk of lime is added in the first neutralization tank 11, the pH value of acid-bearing wastewater is controlled 7 ~ 9 by coarse adjustment.
Second neutralization tank 12, for neutralizing the acid-bearing wastewater that the first neutralization tank 11 is sent; Milk of lime is added in the second neutralization tank 12, make the pH value of acid-bearing wastewater be controlled about 9.5 by accurate adjustment, Fe (OH) 3 flco that the ferrous ion Fe2+ in waste water is changed into.
As preferably, the removal of foam system also comprises:
First waste water pump 2, for being transported to the oily(waste)water after the breakdown of emulsion in oil-containing equalizing tank 1 in biochemistry pool.
Second waste water pump 10, for being transported to containing the acid-bearing wastewater in sour equalizing tank in the first neutralization tank 11.
As preferably, comprise containing sour equalizing tank:
First is communicated with the first neutralization tank 11 by the second waste water pump 10 containing sour equalizing tank 8 containing sour equalizing tank 8, first.
Second is communicated with the first neutralization tank 11 by the second waste water pump 10 containing sour equalizing tank 9 containing sour equalizing tank 9, second.The abundant homogeneous of acid-bearing wastewater can be ensured containing sour equalizing tank 8 and second containing sour equalizing tank 9 by arranging first.
As preferably, biochemistry pool comprises:
First biochemistry pool 3, first biochemistry pool 3 is by the first waste water pump 2 and oil-containing equalizing tank 1 outlet; First biochemistry pool 3 is communicated with settling tank 7.
Second biochemistry pool 4, second biochemistry pool 4 is by the first waste water pump 2 and oil-containing equalizing tank 1 outlet; Second biochemistry pool 4 is communicated with settling tank 7.
3rd biochemistry pool the 5, three biochemistry pool is by the first waste water pump 2 and oil-containing equalizing tank 1 outlet; 3rd biochemistry pool is communicated with settling tank 7.
4th biochemistry pool the 6, four biochemistry pool 6 is by the first waste water pump 2 and oil-containing equalizing tank 1 outlet; 4th biochemistry pool 6 is communicated with settling tank 7.The stopping causing whole the removal of foam system works after first biochemistry pool 3, second biochemistry pool 4, the 3rd biochemistry pool 5 and the 4th biochemistry pool 6 can effectively avoid single biochemistry pool to break down is set, ensures that the removal of foam system runs well for a long time.
As preferably, the removal of foam system also comprises:
Sand filter 13, sand filter 13 is communicated with settling tank 7; Sandstone in waste water after sand filter 13 makes hybrid reaction are filtered.
Outer blowoff basin 14, outer blowoff basin 14 is communicated with sand filter 13.By outer blowoff basin 14, waste water up to standard is discharged.
The removal of foam system of Wastewater from cold rolling treatment station second pond provided by the invention is by being blended in settling tank containing the acid-bearing wastewater after the lime slurry neutralization in sour equalizing tank and biochemistry pool oily(waste)water out, improve the pH value of the oily(waste)water in settling tank 7, and then the bio foam that containment Nocardia bacteria causes, positively charged ion simultaneously in acid-bearing wastewater and the anion surfactant of oily(waste)water react the generation eliminating chemical foam, form the tiny mud of foam under the effect of acid-bearing wastewater high density sludge, mud is formed in settling tank 7, completely eliminate the foam in cold rolling mill oily(waste)water, two kinds of waste water react to each other and eliminate the root of foam generation, the foam of cold rolling mill settling tank is eliminated when not adding any medicament, reduce the cost of sewage disposal, avoid outdoor settling tank 7 freezed in winter of northern cold rolling mill, also the draining water-quality guideline of waste water processing station is effectively raised, ensure the physical and mental health of waste water station worker.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a removal of foam method for Wastewater from cold rolling treatment station second pond, is characterized in that:
Is added milk of lime in the acid-bearing wastewater that cold rolling mill pickling section is produced to neutralize; The pH value of the acid-bearing wastewater after described neutralization controls about 9.5;
The oily(waste)water that cold rolling mill produces is added hydrochloric acid and flocculation agent carries out air supporting breakdown of emulsion; Oily(waste)water after described breakdown of emulsion is added caustic soda and carries out pH value adjustment; The pH value of the oily(waste)water after described adjustment controls 7 ~ 8;
Oily(waste)water after adjustment is carried out biochemical oxidation process;
Oily(waste)water after acid-bearing wastewater after described neutralization and described biochemistry is mixed and reacts; Mixed composite waste pH value controls 8.2 ~ 8.5;
Wherein, the Ca in the acid-bearing wastewater after described neutralization
2+, Fe
3+the residual anion surfactant of the oily(waste)water after positively charged ion and described biochemistry reacts, and the chemical foam of described oily(waste)water is controlled; Meanwhile, the acid-bearing wastewater after described neutralization mixes with the oily(waste)water after described biochemistry, improves the pH value of the oily(waste)water after described biochemistry, and then contains the bio foam that in described oily(waste)water, Nocardia bacteria causes.
2. a removal of foam system for Wastewater from cold rolling treatment station second pond, is characterized in that, comprising:
Oil-containing equalizing tank, for storing the described oily(waste)water after breakdown of emulsion; Described oil-containing equalizing tank can make described oily(waste)water homogeneous; The pH value adjustment process of described oily(waste)water is carried out in described oil-containing equalizing tank; Oily(waste)water after described breakdown of emulsion is added caustic soda and carries out pH value adjustment, make the pH value of the oily(waste)water after described adjustment control 7 ~ 8;
Biochemistry pool, for the organism in the oily(waste)water after adjustment described in biochemical oxidation;
Containing sour equalizing tank, for storing the acid-bearing wastewater that described cold rolling mill produces; Describedly can make described acid-bearing wastewater homogeneous containing sour equalizing tank;
Neutralization tank, for neutralizing the acid-bearing wastewater that described cold rolling mill produces; Described milk of lime is added in described neutralization tank, makes the pH value of described acid-bearing wastewater be controlled in about 9.5;
Settling tank, for mixing by the acid-bearing wastewater after described neutralization with the oily(waste)water after described biochemistry and react; Mixed composite waste pH value is controlled 8.2 ~ 8.5; The outlet of described settling tank and described biochemistry pool and the second neutralization tank.
3. the removal of foam system according to claim 2, is characterized in that, described neutralization tank comprises:
First neutralization tank, for neutralizing the acid-bearing wastewater that described cold rolling mill produces; Described milk of lime is added in described first neutralization tank, makes the pH value of described acid-bearing wastewater be controlled 7 ~ 9 by coarse adjustment;
Second neutralization tank, for neutralizing the acid-bearing wastewater that described first neutralization tank is sent; Described milk of lime is added in described second neutralization tank, the pH value of described acid-bearing wastewater is controlled about 9.5 by accurate adjustment.
4. the removal of foam system according to claim 3, is characterized in that, described the removal of foam system also comprises:
First waste water pump, for being transported in described biochemistry pool by the described oily(waste)water after the breakdown of emulsion in described oil-containing equalizing tank;
Second waste water pump, for being transported to described in described neutralization tank containing the acid-bearing wastewater in sour equalizing tank.
5. the removal of foam system according to claim 4, is characterized in that, describedly comprises containing sour equalizing tank:
First containing sour equalizing tank, and described first is communicated with described first neutralization tank by described second waste water pump containing sour equalizing tank;
Second containing sour equalizing tank, and described second is communicated with described first neutralization tank by described second waste water pump containing sour equalizing tank.
6. the removal of foam system according to claim 4, is characterized in that, described biochemistry pool comprises:
First biochemistry pool, described first biochemistry pool is by described first waste water pump and described oil-containing equalizing tank outlet; Described first biochemistry pool is communicated with described settling tank;
Second biochemistry pool, described second biochemistry pool is by described first waste water pump and described oil-containing equalizing tank outlet; Described second biochemistry pool is communicated with described settling tank;
3rd biochemistry pool, described 3rd biochemistry pool is by described first waste water pump and described oil-containing equalizing tank outlet; Described 3rd biochemistry pool is communicated with described settling tank;
4th biochemistry pool, described 4th biochemistry pool is by described first waste water pump and described oil-containing equalizing tank outlet; Described 4th biochemistry pool is communicated with described settling tank.
7. the removal of foam system according to claim 2, is characterized in that, described the removal of foam system also comprises:
Sand filter, described sand filter is communicated with described settling tank;
Outer blowoff basin, described outer blowoff basin is communicated with described sand filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410740773.3A CN104445823A (en) | 2014-12-05 | 2014-12-05 | System and method for eliminating foam in secondary sedimentation tank of wastewater treatment station in cold rolling plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410740773.3A CN104445823A (en) | 2014-12-05 | 2014-12-05 | System and method for eliminating foam in secondary sedimentation tank of wastewater treatment station in cold rolling plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104445823A true CN104445823A (en) | 2015-03-25 |
Family
ID=52892681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410740773.3A Pending CN104445823A (en) | 2014-12-05 | 2014-12-05 | System and method for eliminating foam in secondary sedimentation tank of wastewater treatment station in cold rolling plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104445823A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838224A (en) * | 2011-06-23 | 2012-12-26 | 宁波宝新不锈钢有限公司 | Stainless steel cold rolling oil-containing wastewater COD degrading method |
| KR20140008119A (en) * | 2012-07-10 | 2014-01-21 | 주식회사 시노펙스 | A method of treating emulsified oil wastewater for industrial water reuse |
| CN104045209A (en) * | 2014-06-10 | 2014-09-17 | 首钢总公司 | Cold-rolling wastewater treatment method |
-
2014
- 2014-12-05 CN CN201410740773.3A patent/CN104445823A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838224A (en) * | 2011-06-23 | 2012-12-26 | 宁波宝新不锈钢有限公司 | Stainless steel cold rolling oil-containing wastewater COD degrading method |
| KR20140008119A (en) * | 2012-07-10 | 2014-01-21 | 주식회사 시노펙스 | A method of treating emulsified oil wastewater for industrial water reuse |
| CN104045209A (en) * | 2014-06-10 | 2014-09-17 | 首钢总公司 | Cold-rolling wastewater treatment method |
Non-Patent Citations (2)
| Title |
|---|
| 桂学林: "宝钢五冷扎废水处理站运行现状分析及其改进方案研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 金亚飚等: "宝钢不锈钢有限公司冷轧废水处理工艺设计", 《环境科学导刊》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102557341B (en) | Treatment method of high-concentration emulsion waste water | |
| CN101698550A (en) | Advanced treating method of landfill leachate | |
| CN102153221B (en) | Process for treating oil field produced water | |
| CN104310700A (en) | Treatment method for wastewater containing high-concentration organic phosphorus | |
| CN104118973A (en) | Technique for processing reverse osmosis concentrated water | |
| CN107226580A (en) | A kind of system and processing method of efficient process oily waste water | |
| CN106315973A (en) | Treatment method of high-salt and high-calcium industrial wastewater | |
| CN105923853A (en) | Process for preparing phosphoric acid and alkali from phosphate wastewater | |
| CN106277597A (en) | The processing method of the higher fatty acid waste water of food industry | |
| CN102923921A (en) | Traditional Chinese medicine wastewater treatment process | |
| CN205367958U (en) | Remaining hydrogen peroxide's device in rapid elimination waste water | |
| CN101209884B (en) | Method and device for comprehensive processing zero discharge and reusing commonly industrial wastewater | |
| CN101717168A (en) | Method for treating wastewater in glycol production | |
| JP2016047490A (en) | Oil- and fat-containing wastewater treatment method and apparatus | |
| CN205115222U (en) | Advanced treatment equipment of high concentration cutting oil waste water | |
| CN108178446A (en) | high-concentration waste emulsion advanced treatment system | |
| CN107721102A (en) | A kind of sewage disposal system | |
| CN104891738B (en) | A kind of ecological treatment method of municipal sewage | |
| CN107381828B (en) | Composite microbial preparation for auxiliary treatment of waste cutting fluid and use method | |
| CN104445823A (en) | System and method for eliminating foam in secondary sedimentation tank of wastewater treatment station in cold rolling plant | |
| CN2876083Y (en) | Mobile integrated equipment for sewage treatment and reuse | |
| CN204874115U (en) | Concrete effluent treatment plant | |
| CN105271602A (en) | Efficient sewage treatment method | |
| CN103496807A (en) | Industrial wastewater advanced treatment and recycling system | |
| CN204198549U (en) | Box-type percolate emergency treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |