CN102642973A - Method for recycling wastewater after ion exchange of phenylalanine fermentation liquid - Google Patents
Method for recycling wastewater after ion exchange of phenylalanine fermentation liquid Download PDFInfo
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- CN102642973A CN102642973A CN2012101348060A CN201210134806A CN102642973A CN 102642973 A CN102642973 A CN 102642973A CN 2012101348060 A CN2012101348060 A CN 2012101348060A CN 201210134806 A CN201210134806 A CN 201210134806A CN 102642973 A CN102642973 A CN 102642973A
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Abstract
The invention relates to a method for recycling wastewater after ion exchange of phenylalanine fermentation liquid, which comprises the following steps: (1) adjustment of potential of hydrogen (pH), (2) rough filtration, (3) fine filtration, (4) ultrafiltration, (5) electroosmosis, (6) nanofiltration, and (7) evaporative crystallization. Compared with the prior art, by means of the method for recycling the wastewater after the ion exchange of the phenylalanine fermentation liquid, ammonium sulfate in the wastewater is recycled fully, and load of biological treatment is reduced.
Description
Technical field
The present invention relates to method for reclaiming waste water after the IX of a kind of phenylalanine(Phe) fermented liquid.
Background technology
Waste water salinity after the IX of phenylalanine(Phe) fermented liquid is higher, and main salt is divided into ammonium sulfate.At present, these waste water are directly carried out a biological disposal upon through dilution usually, then discharging.This mode can not well be carried out waste reclaimation.
Summary of the invention
To the problems of the prior art, the objective of the invention is to provide method for reclaiming waste water after the IX of a kind of phenylalanine(Phe) fermented liquid.
Technical scheme of the present invention is: method for reclaiming waste water after the IX of a kind of phenylalanine(Phe) fermented liquid, and this method may further comprise the steps successively:
1) regulates the pH value to 4.0 of waste water after the IX with ammoniacal liquor;
2) coarse filtration, with the massfraction of ammonium sulfate after the IX of phenylalanine(Phe) fermented liquid be 2 ~ 4% waste water through the coarse filtration strainer, remove the above suspended substance of diameter 5 μ m;
3) smart filter will be through step 2) waste water after handling is through smart filter screen, removes the above suspended substance of diameter 1 μ m;
4) ultrafiltration is passed through ultrafiltration membrane system with the waste water after step 3) is handled, and removes larger molecular organics wherein;
5) electrodialysis is passed through electrodialysis system with the waste water after step 4) is handled, and obtains ammonium sulfate liquid concentrator and secondary wastewater;
6) nanofiltration is passed through the nf membrane system with the secondary wastewater after step 5) is handled, and obtains nanofiltration dope and nanofiltration clear liquid;
7) evaporative crystallization, the ammonium sulfate liquid concentrator that step 5) is obtained carries out evaporative crystallization, obtains ammonia sulfate crystal.
Further, the nanofiltration clear liquid that obtains of step 6) is used for cycle down warm water.
Further, step 7) adopts triple-effect evaporator that it is carried out evaporative crystallization.
Compared with prior art, the present invention has fully reclaimed the ammonium sulfate in the waste water on the one hand through rational method of wastewater treatment, has reduced the load of biological treatment on the other hand.
Embodiment
Below in conjunction with embodiment the present invention is further specified.
Embodiment 1
Method for reclaiming waste water after the IX of a kind of phenylalanine(Phe) fermented liquid, this method may further comprise the steps successively:
1) regulates the pH value to 4.0 of waste water after the IX with ammoniacal liquor.
2) coarse filtration, with the massfraction of ammonium sulfate after the IX of phenylalanine(Phe) fermented liquid be 2% waste water through the coarse filtration strainer, remove the above suspended substance of diameter 5 μ m;
3) smart filter will be through step 2) waste water after handling is through smart filter screen, removes the above suspended substance of diameter 1 μ m;
4) ultrafiltration is passed through ultrafiltration membrane system with the waste water after step 3) is handled, and removes larger molecular organics wherein;
5) electrodialysis is passed through electrodialysis system with the waste water after step 4) is handled, and obtains ammonium sulfate liquid concentrator and secondary wastewater;
6) nanofiltration is passed through the nf membrane system with the secondary wastewater after step 5) is handled, and obtains nanofiltration dope and nanofiltration clear liquid.
7) evaporative crystallization, the ammonium sulfate liquid concentrator that step 5) is obtained carries out evaporative crystallization, obtains ammonia sulfate crystal.
Embodiment 2
Method for reclaiming waste water after the IX of a kind of phenylalanine(Phe) fermented liquid, this method may further comprise the steps successively:
1) regulates the pH value to 4.0 of waste water after the IX with ammoniacal liquor.
2) coarse filtration, with the massfraction of ammonium sulfate after the IX of phenylalanine(Phe) fermented liquid be 3% waste water through the coarse filtration strainer, remove the above suspended substance of diameter 5 μ m;
3) smart filter will be through step 2) waste water after handling is through smart filter screen, removes the above suspended substance of diameter 1 μ m;
4) ultrafiltration is passed through ultrafiltration membrane system with the waste water after step 3) is handled, and removes larger molecular organics wherein;
5) electrodialysis is passed through electrodialysis system with the waste water after step 4) is handled, and obtains ammonium sulfate liquid concentrator and secondary wastewater;
6) nanofiltration is passed through the nf membrane system with the secondary wastewater after step 5) is handled, and obtains nanofiltration dope and nanofiltration clear liquid.
7) evaporative crystallization, the ammonium sulfate liquid concentrator that step 5) is obtained carries out evaporative crystallization, obtains ammonia sulfate crystal.
Embodiment 3
Method for reclaiming waste water after the IX of a kind of phenylalanine(Phe) fermented liquid, this method may further comprise the steps successively:
1) regulates the pH value to 4.0 of waste water after the IX with ammoniacal liquor;
2) coarse filtration, with the massfraction of ammonium sulfate after the IX of phenylalanine(Phe) fermented liquid be 4% waste water through the coarse filtration strainer, remove the above suspended substance of diameter 5 μ m;
3) smart filter will be through step 2) waste water after handling is through smart filter screen, removes the above suspended substance of diameter 1 μ m;
4) ultrafiltration is passed through ultrafiltration membrane system with the waste water after step 3) is handled, and removes larger molecular organics wherein;
5) electrodialysis is passed through electrodialysis system with the waste water after step 4) is handled, and obtains ammonium sulfate liquid concentrator and secondary wastewater;
6) nanofiltration is passed through the nf membrane system with the secondary wastewater after step 5) is handled, and obtains nanofiltration dope and nanofiltration clear liquid;
7) evaporative crystallization, the ammonium sulfate liquid concentrator that step 5) is obtained carries out evaporative crystallization, obtains ammonia sulfate crystal.
Claims (3)
1. method for reclaiming waste water after the phenylalanine(Phe) fermented liquid IX is characterized in that this method may further comprise the steps successively:
1) regulates the pH value to 4.0 of waste water after the IX with ammoniacal liquor;
2) coarse filtration, with the massfraction of ammonium sulfate after the IX of phenylalanine(Phe) fermented liquid be 2 ~ 4% waste water through the coarse filtration strainer, remove the above suspended substance of diameter 5 μ m;
3) smart filter will be through step 2) waste water after handling is through smart filter screen, removes the above suspended substance of diameter 1 μ m;
4) ultrafiltration is passed through ultrafiltration membrane system with the waste water after step 3) is handled, and removes larger molecular organics wherein;
5) electrodialysis is passed through electrodialysis system with the waste water after step 4) is handled, and obtains ammonium sulfate liquid concentrator and secondary wastewater;
6) nanofiltration is passed through the nf membrane system with the secondary wastewater after step 5) is handled, and obtains nanofiltration dope and nanofiltration clear liquid;
7) evaporative crystallization, the ammonium sulfate liquid concentrator that step 5) is obtained carries out evaporative crystallization, obtains ammonia sulfate crystal.
2. method for reclaiming waste water after a kind of phenylalanine(Phe) fermented liquid according to claim 1 IX is characterized in that, the nanofiltration clear liquid that step 6) obtains is used for cycle down warm water.
3. method for reclaiming waste water after a kind of phenylalanine(Phe) fermented liquid according to claim 1 IX is characterized in that, step 7) adopts triple-effect evaporator that it is carried out evaporative crystallization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101348060A CN102642973A (en) | 2012-05-04 | 2012-05-04 | Method for recycling wastewater after ion exchange of phenylalanine fermentation liquid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101348060A CN102642973A (en) | 2012-05-04 | 2012-05-04 | Method for recycling wastewater after ion exchange of phenylalanine fermentation liquid |
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| CN102642973A true CN102642973A (en) | 2012-08-22 |
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| CN2012101348060A Pending CN102642973A (en) | 2012-05-04 | 2012-05-04 | Method for recycling wastewater after ion exchange of phenylalanine fermentation liquid |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601318A (en) * | 2013-11-22 | 2014-02-26 | 中国石油化工股份有限公司 | Method of recycling ammonium sulfate from ammonium sulfate waste liquor |
| CN105692993A (en) * | 2016-01-30 | 2016-06-22 | 内蒙古久科康瑞环保科技有限公司 | High-salt-content industrial wastewater electrodialysis-high pressure nanofiltration combined salt separation system |
| CN106115992A (en) * | 2016-08-25 | 2016-11-16 | 刘永锋 | A kind of electrodialytic desalination device |
| CN106145466A (en) * | 2016-08-25 | 2016-11-23 | 刘永锋 | A kind of electrodialytic desalination method |
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| JP2002191331A (en) * | 2000-12-26 | 2002-07-09 | Shizuoka Prefecture | Method for producing soft drinking water utilizing deep sea water |
| WO2004013048A2 (en) * | 2002-08-02 | 2004-02-12 | University Of South Carolina | Production of purified water and high value chemicals from salt water |
| CN1778695A (en) * | 2005-10-12 | 2006-05-31 | 王凌云 | Waste liquid treatment and treating system thereof |
| CN101857320A (en) * | 2010-05-25 | 2010-10-13 | 苏州大学 | Method for treatment of silk degumming wastewater and recovery of silk gum |
| CN101955282A (en) * | 2010-10-18 | 2011-01-26 | 江苏省环境科学研究院 | Method for realizing zero emission of dyeing wastewater with high salinity in printing and dyeing enterprises |
| CN102010090A (en) * | 2010-11-12 | 2011-04-13 | 杭州蓝然环境技术有限公司 | Process for treating and recycling ammonia nitrogen wastewater |
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2012
- 2012-05-04 CN CN2012101348060A patent/CN102642973A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002191331A (en) * | 2000-12-26 | 2002-07-09 | Shizuoka Prefecture | Method for producing soft drinking water utilizing deep sea water |
| WO2004013048A2 (en) * | 2002-08-02 | 2004-02-12 | University Of South Carolina | Production of purified water and high value chemicals from salt water |
| CN1778695A (en) * | 2005-10-12 | 2006-05-31 | 王凌云 | Waste liquid treatment and treating system thereof |
| CN101857320A (en) * | 2010-05-25 | 2010-10-13 | 苏州大学 | Method for treatment of silk degumming wastewater and recovery of silk gum |
| CN101955282A (en) * | 2010-10-18 | 2011-01-26 | 江苏省环境科学研究院 | Method for realizing zero emission of dyeing wastewater with high salinity in printing and dyeing enterprises |
| CN102010090A (en) * | 2010-11-12 | 2011-04-13 | 杭州蓝然环境技术有限公司 | Process for treating and recycling ammonia nitrogen wastewater |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601318A (en) * | 2013-11-22 | 2014-02-26 | 中国石油化工股份有限公司 | Method of recycling ammonium sulfate from ammonium sulfate waste liquor |
| CN105692993A (en) * | 2016-01-30 | 2016-06-22 | 内蒙古久科康瑞环保科技有限公司 | High-salt-content industrial wastewater electrodialysis-high pressure nanofiltration combined salt separation system |
| CN106115992A (en) * | 2016-08-25 | 2016-11-16 | 刘永锋 | A kind of electrodialytic desalination device |
| CN106145466A (en) * | 2016-08-25 | 2016-11-23 | 刘永锋 | A kind of electrodialytic desalination method |
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Application publication date: 20120822 |