CN107640845A - A kind of waste water dephosphorization method under alkalescence condition - Google Patents
A kind of waste water dephosphorization method under alkalescence condition Download PDFInfo
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- CN107640845A CN107640845A CN201610579856.8A CN201610579856A CN107640845A CN 107640845 A CN107640845 A CN 107640845A CN 201610579856 A CN201610579856 A CN 201610579856A CN 107640845 A CN107640845 A CN 107640845A
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- waste water
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- phosphorus
- aluminium polychloride
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Abstract
The present invention provides a kind of waste water dephosphorization method under alkalescence condition, and its concrete operation step is：First need to waste water to be processed be transported in reactor, aluminium polychloride is then added into reactor；Then the waste water inside reactor is stirred, aluminium polychloride and waste water is fully combined and is reacted；The present invention changes original wastewater treatment mode, carries out dephosphorization using chemical precipitation filter method, can effectively handle the phosphorus in waste water.Phosphorus From Wastewater content through the inventive method before processing reaches discharge standard in more than 0.003g/L, the waste water phosphorus content after the processing of such a method in below 0.003g/L.The present invention is being initially added into aluminium polychloride, can carry out preliminary treatment to waste water, the phosphorus in waste water is obtained preliminary treatment, be easy to the operation in later stage.
Description
Technical field
The present invention relates to a kind of waste water dephosphorization method under field of waste water treatment, more particularly to alkalescence condition.
Background technology
Industrial Wastewater Treatment flow is that phosphorous waste water is added the method for alkali to be precipitated, handled in waste water by heating
Heavy metal, the heavy metal precipitation slagging in waste water is filtered by filter press, outer row.But the method can not effectively be located
The phosphorus in waste water is managed, so as to cause the phosphorus content in efflux wastewater exceeded.
The content of the invention
According to above technical problem, the present invention provides a kind of waste water dephosphorization method under alkalescence condition, its concrete operation step
For：
The first step：First need to waste water to be processed be transported in reactor, aluminium polychloride is then added into reactor；
Second step：Then the waste water inside reactor is stirred, aluminium polychloride and waste water is fully combined and go forward side by side
Row reaction；
3rd step：Reacted waste water is delivered to defecator by the overflow pipe of reactor, and defecator is clarified waste water；
4th step：Waste water is delivered into filter press after clarification to act on waste water, filter press carries out separation of solid and liquid to waste water；
5th step：Solid reclaim and then liquid is put into filter after separation of solid and liquid and is filtered, to useless after filtering
Water is heated, and carries out alkaline cleaning to waste water while heating；
6th step：Waste water is stirred after heating plus alkali, is reacted waste water and alkali, waste water is filtered after reaction.
Beneficial effects of the present invention are：The present invention changes original wastewater treatment mode, utilizes chemical precipitation filtering side
Method carries out dephosphorization, can effectively handle the phosphorus in waste water.Phosphorus From Wastewater content through the inventive method before processing exists
More than 0.003g/L, the waste water phosphorus content after the processing of such a method reach discharge standard in below 0.003g/L.The present invention
Aluminium polychloride is being initially added into, preliminary treatment can carried out to waste water, the phosphorus in waste water is obtained preliminary treatment, just
In the operation in later stage.
Brief description of the drawings
Fig. 1 is operating process structural representation of the present invention.
Fig. 2 is processing equipment structural representation of the present invention.
Embodiment
According to Fig. 1, the present invention is further described：
Embodiment 1
A kind of waste water dephosphorization method under alkalescence condition, its concrete operation step are：
First need to waste water to be processed be transported in reactor, aluminium polychloride is then added into reactor；Then to anti-
Answer the waste water inside kettle to be stirred, aluminium polychloride and waste water is fully combined and is reacted；Reacted waste water
Defecator is delivered to by the overflow pipe of reactor, defecator is clarified waste water；Waste water is delivered to filter press after clarification
Waste water is acted on, filter press carries out separation of solid and liquid to waste water；Solid reclaim after separation of solid and liquid and then puts liquid
Enter in filter and filtered, waste water is heated after filtering, alkaline cleaning is carried out to waste water while heating；Heating plus alkali
Waste water is stirred afterwards, is reacted waste water and alkali, waste water is filtered after reaction.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvement can also be made, these improvement also should be regarded as the present invention's
Protection domain.
Claims (1)
1. a kind of waste water dephosphorization method under alkalescence condition, its concrete operation step are：
The first step：First need to waste water to be processed be transported in reactor, aluminium polychloride is then added into reactor；
Second step：Then the waste water inside reactor is stirred, aluminium polychloride and waste water is fully combined and go forward side by side
Row reaction；
3rd step：Reacted waste water is delivered to defecator by the overflow pipe of reactor, and defecator is clarified waste water；
4th step：Waste water is delivered into filter press after clarification to act on waste water, filter press carries out separation of solid and liquid to waste water；
5th step：Solid reclaim and then liquid is put into filter after separation of solid and liquid and is filtered, to useless after filtering
Water is heated, and carries out alkaline cleaning to waste water while heating；
6th step：Waste water is stirred after heating plus alkali, is reacted waste water and alkali, waste water is filtered after reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610579856.8A CN107640845A (en) | 2016-07-22 | 2016-07-22 | A kind of waste water dephosphorization method under alkalescence condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610579856.8A CN107640845A (en) | 2016-07-22 | 2016-07-22 | A kind of waste water dephosphorization method under alkalescence condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107640845A true CN107640845A (en) | 2018-01-30 |
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ID=61108881
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610579856.8A Pending CN107640845A (en) | 2016-07-22 | 2016-07-22 | A kind of waste water dephosphorization method under alkalescence condition |
Country Status (1)
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| CN (1) | CN107640845A (en) |
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| CN102951755A (en) * | 2012-11-23 | 2013-03-06 | 南京格洛特环境工程有限公司 | Processing method and processing equipment of rear earth wastewater |
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| CN103693789A (en) * | 2013-12-09 | 2014-04-02 | 华南师范大学 | Resource recycling method of heavy metals in heavy metal wastewater |
| CN103951112A (en) * | 2014-05-13 | 2014-07-30 | 中国科学院城市环境研究所 | Method for removing heavy metals in wastewater phosphorus recovery product |
| CN104860448A (en) * | 2015-06-09 | 2015-08-26 | 安徽利和水务有限公司 | System and method for treating lead-containing and phosphorus-containing wastewater |
| CN105347547A (en) * | 2015-10-30 | 2016-02-24 | 无锡市嘉邦电力管道厂 | Heavy metal waste water treatment method |
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2016
- 2016-07-22 CN CN201610579856.8A patent/CN107640845A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041534A (en) * | 2007-04-27 | 2007-09-26 | 济南晶恒有限责任公司 | Electroplating wastewater treatment reclaiming technique |
| CN101100339A (en) * | 2007-07-26 | 2008-01-09 | 胡建平 | Process for reclaiming and treating phosphorization sewage |
| CN101624243A (en) * | 2009-08-05 | 2010-01-13 | 申明乐 | Treatment technology of acid washing and alkaline washing waste liquid of aluminum substrate |
| CN101671087A (en) * | 2009-09-11 | 2010-03-17 | 广东光华化学厂有限公司 | Method for recovering reagent grade sodium nitrate from waste liquid of bismuth subnitrate production |
| CN101786747A (en) * | 2010-03-17 | 2010-07-28 | 上海大学 | Method for treating high-concentration phosphorus-containing wastewater |
| CN102951755A (en) * | 2012-11-23 | 2013-03-06 | 南京格洛特环境工程有限公司 | Processing method and processing equipment of rear earth wastewater |
| CN103274567A (en) * | 2013-05-27 | 2013-09-04 | 天津市环境保护科学研究院 | Device and method for treating electrophoretic coating waste water |
| CN103693789A (en) * | 2013-12-09 | 2014-04-02 | 华南师范大学 | Resource recycling method of heavy metals in heavy metal wastewater |
| CN103951112A (en) * | 2014-05-13 | 2014-07-30 | 中国科学院城市环境研究所 | Method for removing heavy metals in wastewater phosphorus recovery product |
| CN104860448A (en) * | 2015-06-09 | 2015-08-26 | 安徽利和水务有限公司 | System and method for treating lead-containing and phosphorus-containing wastewater |
| CN105347547A (en) * | 2015-10-30 | 2016-02-24 | 无锡市嘉邦电力管道厂 | Heavy metal waste water treatment method |
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Application publication date: 20180130 |
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