CN1045940C - Yellow phosphorus containing waste water treatment by multi-stage oxidizing and settling - Google Patents
Yellow phosphorus containing waste water treatment by multi-stage oxidizing and settling Download PDFInfo
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- CN1045940C CN1045940C CN93118351A CN93118351A CN1045940C CN 1045940 C CN1045940 C CN 1045940C CN 93118351 A CN93118351 A CN 93118351A CN 93118351 A CN93118351 A CN 93118351A CN 1045940 C CN1045940 C CN 1045940C
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Abstract
The present invention relates to a multi-stage oxidation settling method used for environment treatment, which treats industrial wastewater of yellow phosphorus. In the present invention, chemical oxidation and physical settling technology are used, and first-stage oxidation is realized by a limestone oxidizing bed; excessive active chlorine is added in a processing phase by a first-stage purifying tank during second-stage oxidation so that the excessive active chlorine can be used for realizing the second-stage oxidation and impurity precipitation; iron trichloride containing active chlorine is added in a second-stage purifying treatment phase of third-stage oxidation, the three-stage oxidation is realized by active chlorine, and iron trichloride is used as a flocculating agent for impurity precipitation; consequently, treated waste water completely reaches the national standards of the discharge of yellow phosphorus wastewater. The present invention has the advantages of reliable method, simple technology, favorable economic benefit and thorough treatment.
Description
The present invention relates to a kind of method of the wastewater processing technology that is used for environment protection, particularly a kind of Yellow phosphorus containing waste water treatment by multi-stage oxidizing and settling.
Japan special permission communique JP one spy opens clear 55-155789 and discloses a kind of method of removing phosphorus from waste water on December 4th, 1980, and it utilizes iron trichloride as flocculation agent, carries out coagulating sedimentation and handles, and adds Ca (OH) after mechanical dehydration
2Alkaline matter, it has certain effect to removing the phosphorus suspended substance.Owing to also contain the hazardous and noxious substances of a large amount of high densitys such as fluorine, arsenic, prussiate etc. in the yellow phosphorus industry waste water outside the dephosphorization, only use coagulating sedimentation, hazardous and noxious substances is handled not thorough, the Yellow Phosphorus Wastewater emission standard that the treating processes reaction conditions is wayward, the every index of water after administering can not all reach country's promulgation, more can not reach yellow phosphorus industry waste water that country allows discharging should be less than the specific criteria of 0.05mg/l about phosphorus and cyanide content, thereby pollutes environment, destroy the serious consequence that ecological, health risk and restriction are produced.
The objective of the invention is to provide a kind of method of administering yellow phosphorus industry waste water, it can administer trade effluent up hill and dale, control the treating processes reaction conditions effectively, the every index of water after realizing reliably administering reaches the Yellow Phosphorus Wastewater emission standard of country's promulgation fully.
The object of the present invention is achieved like this: the governance process of yellow phosphorus industry waste water is stair oxidation oxidation bed → secondary oxidation first class purification → tertiary oxidation secondary purification pond → clear water.
The present invention adopts reactive chlorine to realize secondary and tertiary oxidation process owing to adopt oxidation bed to realize stair oxidation, so made full use of the oxidation program, helps thoroughly removing phosphorus and prussiate in the yellow phosphorus industry waste water; Simultaneously owing to adopt reactive chlorine to make oxygenant, make flocculation agent with iron trichloride, so help thoroughly removing fluorochemical and arsenide in the yellow phosphorus industry waste water, and then the total suspended matter in the waste water thoroughly eradicated, the turbidity of administering back yellow phosphorus industry waste water is once reached; Owing to the treatment stage of the tertiary oxidation secondary purification, adopt alkaline substance to control its potential of hydrogen, regulate in addition so realize the pH value of wastewater treatment process effectively; The present invention has also that method is reliable, technology is simple, good in economic efficiency and administer advantage completely.
Concrete governance process of the present invention is illustrated by following embodiment.
The governance process of yellow phosphorus industry waste water is: stair oxidation oxidation bed → secondary oxidation first class purification pond → tertiary oxidation secondary purification pond → clear water.Wherein, the multi-stage oxidizing process adopts chemical oxidization method, and the subsiding and purifying process adopts the physics settling process.
The treatment stage that stair oxidation is used oxidation bed, yellow phosphorus industry waste water is with the oxidation bed of spray mode by being made up of the multilayer Wingdale, changes to spray the flow velocity limestone granularity and the oxidation bed number of plies, speed of response that can the controlled oxidation process.At this moment phosphorus and the prussiate in the yellow phosphorus industry waste water removed through oxygenizement.Its reaction formula is as follows:
The treatment stage of secondary oxidation first class purification pond, the yellow phosphorus industry waste water of oxidation bed of flowing through enters the secondary oxidation effect and removes most of phosphorus and prussiate in the yellow phosphorus industry waste water, this process is to utilize dissolved chlorine effect generation hypochlorite in reactive chlorine and the yellow phosphorus industry waste water, finish the secondary oxidation process, the nitrogen of generation is discharged, realize the calcification precipitation of hazardous and noxious substances, obtain throw outs such as calcium superphosphate, calcium phosphate.Its reaction formula is as follows:
Dephosphorization:
Remove cyanogen:
Yellow phosphorus industry waste water after handling in secondary oxidation first class purification pond flows in the tertiary oxidation secondary purification pond through strainer, in this treating pond, add the iron trichloride that contains reactive chlorine, utilize reactive chlorine to realize tertiary oxidation again, remove residual phosphorus and prussiate in the waste water; This process is to utilize the dissolved oxygen in reactive chlorine and the yellow phosphorus industry waste water to act on the generation hypochlorite again, finishes the tertiary oxidation process, and the nitrogen of generation is discharged, and realizes the calcification precipitation of hazardous and noxious substances; Utilize iron trichloride to make flocculation agent simultaneously, remove fluorochemical and arsenide in the waste water, total suspended matter in the waste water is thoroughly eradicated, and its turbidity is once reached, advance the precipitation of hazardous and noxious substances in the realization waste water, obtain Calcium Fluoride (Fluorspan), iron trichloride, calcium phosphate, calcium chloride etc., the precipitation that these materials have, as calcium phosphate, the secondary purification process is finished in material that has and iron trichloride co-precipitation.In this treating pond, add in addition alkaline substance with equalizing tank in the pH value of waste water, and make the fluorine in the waste water generate fluorochemical and iron trichloride co-precipitation.
Dephosphorization, cyanogen, fluorine are with the above first class purification stage.
Arsenic removal:
After filtering, obtain to meet the discharging clear water of national Yellow Phosphorus Wastewater emission standard at last, this discharging clear water reaches the national Yellow Phosphorus Wastewater of discharging that allows fully all should be less than the specific criteria of 0.05mg/l about phosphorus and cyanide content.Administer synopsis referring to following Yellow Phosphorus Wastewater poison objectionable impurities.
| Sequence number | Hazardous and noxious substances in the Yellow Phosphorus Wastewater | Yellow Phosphorus Wastewater emission standard (mg/l) GB4283-84 of country's promulgation | Adopt the yellow phosphorus industry waste water (mg/l) after the improvement technical finesse of the present invention | |
| One-level | Secondary | |||
| 1 2 3 4 5 6 | Phosphorus muriate fluorochemical arsenide total suspended matter pH value | 0.100 0.500 20.000 0.500 150.000 6.00-9.00 | 0.300 1.000 30.000 0.500 250.000 6.00-9.00 | 0.021 0.012 19.600 0.036 turbidity is 1 degree 7.96 |
Claims (1)
1, a kind of method of administering yellow phosphorus industry waste water adds iron trichloride and carries out coagulating sedimentation as flocculation agent treatment stage of the tertiary oxidation secondary purification, it is characterized in that:
The treatment stage that stair oxidation being used oxidation bed, adopt the Wingdale oxidation bed, yellow phosphorus industry waste water passes through oxidation bed in the spray mode; Enter the first class purification pond again;
The treatment stage of secondary oxidation first class purification pond: add excessive reactive chlorine in the first class purification pond, the dissolved oxygen effect in reactive chlorine and the waste water generates hypochlorite, finishes the secondary oxidation process, obtains throw out, enters the secondary purification pond after the filtration;
The treatment stage of tertiary oxidation secondary purification pond: add the iron trichloride that contains reactive chlorine in the secondary purification pond, the dissolved oxygen effect in reactive chlorine and the waste water generates hypochlorite and finishes the tertiary oxidation process, obtains throw out and reaches and iron trichloride coagulating sedimentation thing; Add alkaline substance in the secondary purification pond, the pH value of water in the equalizing tank makes fluorine in the waste water generate Calcium Fluoride (Fluorspan) with the iron trichloride coagulating sedimentation; Refilter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93118351A CN1045940C (en) | 1993-10-03 | 1993-10-03 | Yellow phosphorus containing waste water treatment by multi-stage oxidizing and settling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93118351A CN1045940C (en) | 1993-10-03 | 1993-10-03 | Yellow phosphorus containing waste water treatment by multi-stage oxidizing and settling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1086498A CN1086498A (en) | 1994-05-11 |
| CN1045940C true CN1045940C (en) | 1999-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93118351A Expired - Fee Related CN1045940C (en) | 1993-10-03 | 1993-10-03 | Yellow phosphorus containing waste water treatment by multi-stage oxidizing and settling |
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| CN (1) | CN1045940C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460339C (en) * | 2005-05-17 | 2009-02-11 | 丹江口磷化工有限公司 | Treatment process for industrial wastewater of yellow phosphorus production |
| CN101786744A (en) * | 2010-03-08 | 2010-07-28 | 昆明理工大学 | Method for directly utilizing waste liquor containing phosphoric acid and phosphorous acid |
| CN102070267A (en) * | 2010-11-30 | 2011-05-25 | 湖北大峪口化工有限责任公司 | Method for treating high-concentration acidic wastewater containing phosphorus and fluorine |
| CN102079596B (en) * | 2010-12-20 | 2012-07-04 | 湖北兴发化工集团股份有限公司 | Method for removing elemental phosphorus in industrial wastewater |
| CN103159341A (en) * | 2011-12-16 | 2013-06-19 | 王炜 | Treatment process of high-phosphorus sewage |
| CN108585282A (en) * | 2018-05-16 | 2018-09-28 | 江西铜业股份有限公司 | A method of the depth degradation COD from alkalinity high chloride solution |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55155789A (en) * | 1979-05-23 | 1980-12-04 | Nippon Kankyo Seibi Kiyouiku Center | Dephosphorizing method of waste water containing phosphorus |
| JPS57184489A (en) * | 1981-05-08 | 1982-11-13 | Asahi Glass Co Ltd | Purification of waste water containing turbid substance and phosphorus component |
| EP0454210A1 (en) * | 1990-04-26 | 1991-10-30 | Passavant-Werke Ag | Process for elimination of phosphor and suspended matter from waste water |
-
1993
- 1993-10-03 CN CN93118351A patent/CN1045940C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55155789A (en) * | 1979-05-23 | 1980-12-04 | Nippon Kankyo Seibi Kiyouiku Center | Dephosphorizing method of waste water containing phosphorus |
| JPS57184489A (en) * | 1981-05-08 | 1982-11-13 | Asahi Glass Co Ltd | Purification of waste water containing turbid substance and phosphorus component |
| EP0454210A1 (en) * | 1990-04-26 | 1991-10-30 | Passavant-Werke Ag | Process for elimination of phosphor and suspended matter from waste water |
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| Publication number | Publication date |
|---|---|
| CN1086498A (en) | 1994-05-11 |
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