CN103387281A - Acetic acid mixed solution as sewage denitrification carbon source additive - Google Patents
Acetic acid mixed solution as sewage denitrification carbon source additive Download PDFInfo
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- CN103387281A CN103387281A CN201210142927XA CN201210142927A CN103387281A CN 103387281 A CN103387281 A CN 103387281A CN 201210142927X A CN201210142927X A CN 201210142927XA CN 201210142927 A CN201210142927 A CN 201210142927A CN 103387281 A CN103387281 A CN 103387281A
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- acetic acid
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Abstract
The invention discloses an acetic acid mixed solution as a sewage denitrification carbon source additive, and the acetic acid mixed solution as the carbon source addition technology is more environmentally friendly. The aim of the invention is to invent the acetic acid mixed solution which is most-sufficient and toxicity-free both in theories (microbial driving, biological membranes, denitrification nitrogen-removal parameters and the like) and practical application (the best dosing quantity and control manners), to use as the carbon source additive. The crystallization problem in the case of the low temperature in winter in the practical application of replacement of methanol by an acetic acid solution is solved.
Description
Technical field:
The present invention relates to a kind of sewerage advanced treatment process, be specifically related to the distinctive acetic acid mixed solution of dark bed denitrification filter pool technique as carbon source adding technique, environmental protection more.
Background technology:
Along with the Chinese society expanding economy, the increase of population and the scale of enterprise large, quantity of wastewater effluent increases day by day, and seek efficient degree of depth sewage treatment process is exigence for this reason.Dark bed denitrification filter pool technique floor space is few, is convenient to enlarging or the transformation of sewage work.Denilrification system is fixed biologically membrane bioreactor and deep-bed filtration pond, removes TP, TN and SS, makes final outflow water reach high-level requirement.Dark bed denitrification filter pool possesses the synchronous function of removing TN, TP and SS, and a step can reach the very strict requirement of emission limit set, greatly reduces floor space, one-time investment cost and maintenance cost.The research of denitrification supplementary carbon source, dark bed denitrification filter pool mostly adopts methyl alcohol carbon source as a supplement, adds and a little is arranged on the filter tank water inlet.Methyl alcohol is as valuable consumption product, and consumption is larger in denitrification process.
Methyl alcohol is inflammable, and unglazed light blue flame is arranged during burning.Steam can form explosive mixture with air. limits of explosion 6.0%-36.5% (vol).The limbs cell tissue of poisonous directly infringer. particularly encroach on the optic nerve nethike embrane, cause blind.The normal people once drinks the pure methyl alcohol of 4-10g and can produce seriously poisoning.Drink 7-8g and can cause blindly, drinking 30-100g will be dead.
Summary of the invention:
The objective of the invention is to invent a kind of is all that the acetic acid mixed solution of the most sufficient toxicological harmless is as carbon source additive from theoretical (microorganism driving, microbial film, denitrification denitrogenation parameter etc.) and practical application (best dosage, control mode).Solved crystallisation problems in the situation that acetic acid solution replaces the winter low temperature in the practical application of methyl alcohol.
The distinctive carbon source adding technique of a kind of dark bed denitrification filter pool technique, is characterized in that: contain acetic acid solution 96-97%, dissolution accelerator 1%, freezing point lowering agent 0.5-1%, stablizer 0.5-1%, PH conditioning agent 1%.
The distinctive carbon source adding technique of a kind of dark bed denitrification filter pool technique, is characterized in that: contain acetic acid solution 96-97%, dissolution accelerator 1%, freezing point lowering agent 0.5-1%, stablizer 0.5-1%, PH conditioning agent 1%.
One, prepare raw material, content is 99.8% acetic acid solution, dissolution accelerator, freezing point lowering agent, stablizer, PH conditioning agent
Two, solution preparation, the acetic acid solution with 99.8% is heated to 30 ℃, slowly 1% dissolution accelerator solution is joined acetic acid solution, stirs; The freezing point lowering agent of 0.5-1% is slowly joined in acetic acid solution, stir; The stablizer of 0.5-1% is slowly joined in acetic acid solution, stir; Temperature is reduced to 20 ℃, 1%PH conditioning agent solution is joined acetic acid solution, stir; Solution temperature is down to 10 ℃.Obtain pH value in the freezing point of 6-7 in the stable carbon source additive below 10 ℃.
Beneficial effect of the present invention is: formula rationally, is made easily, and the carbon source additive of making is more stable, and toxicological harmless has solved crystallisation problems in the situation that acetic acid solution replaces the winter low temperature in the practical application of methyl alcohol.
Embodiment:
Case study on implementation 1
One, prepare raw material, content is 99.8% acetic acid solution, dissolution accelerator, freezing point lowering agent, stablizer, PH conditioning agent.
Two, solution preparation, be heated to 30 ℃ with the acetic acid solution of 965ml 99.8%, slowly dissolution accelerator 10ml solution joined acetic acid solution, stirs; The freezing point lowering agent of 8ml is slowly joined in acetic acid solution, stir; The stablizer of 7ml is slowly joined in acetic acid solution, stir; Temperature is reduced to 20 ℃, PH conditioning agent 10ml solution is joined acetic acid solution, stir; Solution temperature is down to 10 ℃.Obtain pH value in the freezing point of 6-7 in the stable carbon source additive below 10 ℃.
Case study on implementation 2
One, prepare raw material, content is 99.8% acetic acid solution, dissolution accelerator, freezing point lowering agent, stablizer, PH conditioning agent.
Two, solution preparation, be heated to 30 ℃ with the acetic acid solution of 970ml 99.8%, slowly dissolution accelerator 10ml solution joined acetic acid solution, stirs; The freezing point lowering agent of 5ml is slowly joined in acetic acid solution, stir; The stablizer of 5ml is slowly joined in acetic acid solution, stir; Temperature is reduced to 20 ℃, PH conditioning agent 10ml solution is joined acetic acid solution, stir; Solution temperature is down to 10 ℃.Obtain pH value in the freezing point of 6-7 in the stable carbon source additive below 10 ℃.
Case study on implementation 3
One, prepare raw material, content is 99.8% acetic acid solution, dissolution accelerator, freezing point lowering agent, stablizer, PH conditioning agent.
Two, solution preparation, be heated to 30 ℃ with the acetic acid solution of 965ml 99.8%, slowly dissolution accelerator 10ml solution joined acetic acid solution, stirs; The freezing point lowering agent of 10ml is slowly joined in acetic acid solution, stir; The stablizer of 5ml is slowly joined in acetic acid solution, stir; Temperature is reduced to 20 ℃, PH conditioning agent 10ml solution is joined acetic acid solution, stir; Solution temperature is down to 10 ℃.Obtain pH value in the freezing point of 6-7 in the stable carbon source additive below 10 ℃.
Case study on implementation 4
One, prepare raw material, content is 99.8% acetic acid solution, dissolution accelerator, freezing point lowering agent, stablizer, PH conditioning agent.
Two, solution preparation, be heated to 30 ℃ with the acetic acid solution of 965ml 99.8%, slowly dissolution accelerator 10ml solution joined acetic acid solution, stirs; The freezing point lowering agent of 5ml is slowly joined in acetic acid solution, stir; The stablizer of 10ml is slowly joined in acetic acid solution, stir; Temperature is reduced to 20 ℃, PH conditioning agent 10ml solution is joined acetic acid solution, stir; Solution temperature is down to 10 ℃.Obtain pH value in the freezing point of 6-7 in the stable carbon source additive below 10 ℃.
Claims (5)
1. the acetic acid mixed solution of a toxicological harmless the most fully is as the carbon source additive of sewage disposal.Solved crystallisation problems in the situation that acetic acid solution replaces the winter low temperature in the practical application of methyl alcohol.
2. require described sewage disposal carbon source additive according to right 1, it is characterized in that: contain acetic acid solution 96-97%, dissolution accelerator 1%, freezing point lowering agent 0.5-1%, stablizer 0.5-1%, PH conditioning agent 1%.
3. require described sewage disposal carbon source additive according to right 1 or 2, it is characterized in that: contain acetic acid solution 97%, dissolution accelerator 1%, freezing point lowering agent 0.5-1%, stablizer 0.5-1%, PH conditioning agent 1%.
4. require described sewage disposal carbon source additive according to right 1 or 2, it is characterized in that: acetic acid solution concentration is 99.8%.
5. require described sewage disposal carbon source additive according to right 1,2,3,4.
One, prepare raw material, content is 99.8% acetic acid solution, dissolution accelerator, freezing point lowering agent, stablizer, PH conditioning agent.
Two, solution preparation, the acetic acid solution with 99.8% is heated to 30 ℃, slowly 1% dissolution accelerator solution is joined acetic acid solution, stirs; The freezing point lowering agent of 0.5-1% is slowly joined in acetic acid solution, stir; The stablizer of 0.5-1% is slowly joined in acetic acid solution, stir; Temperature is reduced to 20 ℃, 1%PH conditioning agent solution is joined acetic acid solution, stir; Solution temperature is down to 10 ℃.Obtain pH value in the freezing point of 6-7 in the stable carbon source additive below 10 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210142927XA CN103387281A (en) | 2012-05-10 | 2012-05-10 | Acetic acid mixed solution as sewage denitrification carbon source additive |
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| CN201210142927XA CN103387281A (en) | 2012-05-10 | 2012-05-10 | Acetic acid mixed solution as sewage denitrification carbon source additive |
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| CN103387281A true CN103387281A (en) | 2013-11-13 |
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| CN201210142927XA Pending CN103387281A (en) | 2012-05-10 | 2012-05-10 | Acetic acid mixed solution as sewage denitrification carbon source additive |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107935163A (en) * | 2017-11-02 | 2018-04-20 | 北京博汇特环保科技股份有限公司 | Carbon source solution from agriculture derivative and its preparation method and application |
| CN112174805A (en) * | 2020-11-10 | 2021-01-05 | 杭州电化集团有限公司 | Production method of sodium acetate capable of not crystallizing at low temperature |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6211598A (en) * | 1985-07-09 | 1987-01-20 | Nishihara Environ Sanit Res Corp | Biological denitrification method |
| JPH03270795A (en) * | 1990-03-20 | 1991-12-02 | Sumitomo Jukikai Envirotec Kk | Treatment of waste water containing sterilizer |
| CN101219843A (en) * | 2008-01-23 | 2008-07-16 | 太原理工大学 | Process for producing carbon source for processing wastewater |
-
2012
- 2012-05-10 CN CN201210142927XA patent/CN103387281A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6211598A (en) * | 1985-07-09 | 1987-01-20 | Nishihara Environ Sanit Res Corp | Biological denitrification method |
| JPH03270795A (en) * | 1990-03-20 | 1991-12-02 | Sumitomo Jukikai Envirotec Kk | Treatment of waste water containing sterilizer |
| CN101219843A (en) * | 2008-01-23 | 2008-07-16 | 太原理工大学 | Process for producing carbon source for processing wastewater |
Non-Patent Citations (1)
| Title |
|---|
| 杨敏 等: "不同外加碳源的反硝化效能与技术经济性分析", 《给水排水》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107935163A (en) * | 2017-11-02 | 2018-04-20 | 北京博汇特环保科技股份有限公司 | Carbon source solution from agriculture derivative and its preparation method and application |
| CN112174805A (en) * | 2020-11-10 | 2021-01-05 | 杭州电化集团有限公司 | Production method of sodium acetate capable of not crystallizing at low temperature |
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Application publication date: 20131113 |