CN102976464B - Composite ammonia nitrogen removal agent and using method thereof - Google Patents
Composite ammonia nitrogen removal agent and using method thereof Download PDFInfo
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- CN102976464B CN102976464B CN201210498698.5A CN201210498698A CN102976464B CN 102976464 B CN102976464 B CN 102976464B CN 201210498698 A CN201210498698 A CN 201210498698A CN 102976464 B CN102976464 B CN 102976464B
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- ammonia nitrogen
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- waste water
- removal agent
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Abstract
The invention provides a composite ammonia nitrogen removal agent. The composite ammonia nitrogen removal agent comprises the following components by weight percent: 53-86 percent of nano particles and 14-47 percent of organic alcohols. The 0.11-0.19g/L composite ammonia nitrogen removal agent is put into waste water to be uniformly mixed, so that the ammonia nitrogen removal agent can be used for sewage treatment. By the removal agent, the ammonia nitrogen in ammonia nitrogen waste water with high concentration can be effectively removed, and the removal rate is up to 92-99.99 percent; and moreover, the composite ammonia nitrogen removal agent is low in operation cost, easy to acquire, low in gas-liquid ratio and short in reaction time.
Description
Technical field
The present invention relates to field of waste water treatment, particularly a kind of remove ammonia nitrogen in waste water remove agent and using method thereof.
Background technology
Ammonia nitrogen is mainly from city domestic sewage and trade effluent, and in city domestic sewage, ammonia nitrogen concentration is low can reach emission request by suitable biochemical treatment.Ammonia nitrogen in industrial waste water concentration is higher, originates not only extensive, and the waste water of dissimilar factory's discharge differs also larger containing ammonia nitrogen situation.High-concentration ammonia nitrogenous wastewater mainly comes from the waste water of the industry production such as petrochemical complex, non-ferrous metal chemical metallurgy, chemical fertilizer, monosodium glutamate, meat processing and cultivation discharge and percolate etc.Ammonia nitrogen is an important factor that causes body eutrophication, because its quantity discharged is large, complicated, strong toxicity, large to environmental hazard, intractability is very large again, makes the improvement of high-concentration ammonia nitrogenous wastewater be subject to the great attention of various countries' field of Environment Protection always, and country also over and over again heightens standard to the ammonia nitrogen emission standard in industrial enterprise's waste water.
In existing technology, auxiliary agent denitrification effect that the ammonia nitrogen removal in trade effluent is adopted is poor, the cycle is long, cost is high, be difficult for obtaining, and needs further to be improved.
Summary of the invention
Technical problem to be solved by this invention is: in prior art, auxiliary agent denitrification effect that the ammonia nitrogen removal in trade effluent is adopted is poor, the cycle is long, cost is high, be difficult for obtaining.
For solving this technical problem, the invention provides a kind of composite ammonia nitrogen and remove agent, this ammonia nitrogen removal agent is comprised of nano particle and Organic Alcohol, and wherein the mass percent of nano particle is 53-86%; The mass percent of Organic Alcohol is 14-47%.
As preferably: nano particle is selected Nanoscale Iron;
As preferably: Organic Alcohol is isooctyl alcohol or Macrogol 200;
The present invention also provides the above-mentioned composite ammonia nitrogen of a kind of utilization to remove agent, processes the method for ammonia nitrogen waste water, and concrete operations are: composite ammonia nitrogen is removed to each composition of agent, drop in waste water, mix, can be used for wastewater treatment,
Nano combined denitrfying agent is added in ammonia nitrogen waste water, can introduce a kind of perturbation effect, nano particle is adsorbed on liquid film surface as third phase material, and Organic Alcohol can be adsorbed on microparticle surfaces, the Organic Alcohol of selecting due to this test has good dispersiveness and surfactivity, dispersing nanoparticles effectively, in addition, due to its surface-active existence, between particulate, produced repulsive force, particulate can not be contacted, thereby prevent the generation of agglomeration, stoped the coalescence of bubble.In addition, microbubble is formed Organic Alcohol and the improvement effect of stability has improved gas holdup and the bubble residence time, partial offset its disadvantageous effect to ammonia mass transfer process, also reduced the surface tension of liquid film, reduce liquid-film resistance, be conducive to ammonia by liquid the mass transfer to bubble, thereby effectively improve the decreasing ratio of ammonia nitrogen
As preferably: composite ammonia nitrogen is removed to agent, and while dropping in waste water, input concentration is 0.11-0.19g/L;
As preferably: composite ammonia nitrogen is removed to agent, drop into the reaction times 60-100min after waste water.
The invention has the beneficial effects as follows: with ammonia nitrogen removal agent of the present invention, process ammonia nitrogen waste water, particularly high-concentration ammonia nitrogenous wastewater, very effective.Test shows, with the waste water that remover of the present invention is 1000-2000mg/L to ammonia-nitrogen content, processes, and generally treatment effect all can reach 92% left and right, the highlyest approaches 100%, and preparation method is simple, and working cost is not high, and the reaction times is short.
Embodiment
Embodiment 1:
Take in mass ratio nano iron particles 63.83%, Macrogol 200: 36.17%, be composite ammonia nitrogen and remove agent.Concentration by above-mentioned ammonia nitrogen removal agent with 0.1567g/L drops in trade effluent, mixes, and the treatment time is 60 minutes, with aforesaid method, processes the trade effluent that ammonia-nitrogen content is 1000mg/L, and ammonia nitrogen removal frank reaches 99.99%; During trade effluent that to process content be 2000mg/L, clearance can reach 93.72%.
Embodiment 2:
Take in mass ratio nano iron particles: 67.66%, isooctyl alcohol 32.34%, be composite ammonia nitrogen and remove agent, concentration by above-mentioned ammonia nitrogen removal agent with 0.1478g/L drops in trade effluent, mix, treatment time is 100 minutes, while processing with aforesaid method the trade effluent that content is 2000mg/L, clearance can reach 93.26%.
Embodiment 3:
Take in mass ratio nano iron particles: 53.06%, Macrogol 200: 46.94%, be composite ammonia nitrogen and remove agent, concentration by above-mentioned ammonia nitrogen removal agent with 0.19g/L drops in trade effluent, mix, treatment time is 100 minutes, with aforesaid method, process the trade effluent that ammonia-nitrogen content is 1000mg/L, ammonia nitrogen removal frank reaches 98.45%.
Embodiment 4:
Take in mass ratio nano iron particles: 85.31%, Macrogol 200: 14.69%, be composite ammonia nitrogen and remove agent, concentration by above-mentioned ammonia nitrogen removal agent with 0.11g/L drops in trade effluent, mix, treatment time is 100 minutes, with aforesaid method, process the trade effluent that ammonia-nitrogen content is 1000mg/L, ammonia nitrogen removal frank reaches 92.16%.
Claims (5)
1. composite ammonia nitrogen removes an agent, it is characterized in that: described ammonia nitrogen removal agent is comprised of nano particle and Organic Alcohol, and wherein the mass percent of nano particle is 53-86%; The mass percent of Organic Alcohol is 14-47%, and nano particle is Nanoscale Iron.
2. composite ammonia nitrogen as claimed in claim 1 removes agent, it is characterized in that: described Organic Alcohol is isooctyl alcohol or Macrogol 200.
3. use the composite ammonia nitrogen as described in claim 1 to 2 any one to remove agent, process the method for ammonia nitrogen waste water, it is characterized in that: described treatment process is, composite ammonia nitrogen is removed to each composition of agent, put in waste water, mix, can be used for wastewater treatment.
4. use composite ammonia nitrogen as claimed in claim 3 removes agent, processes the method for ammonia nitrogen waste water, it is characterized in that: described removes agent by composite ammonia nitrogen, and while dropping in waste water, input concentration is 0.11-0.19g/L.
5. use composite ammonia nitrogen as claimed in claim 3 removes agent, processes the method for ammonia nitrogen waste water, it is characterized in that: described removes agent by composite ammonia nitrogen, and the reaction times of dropping into after waste water is 60-100min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210498698.5A CN102976464B (en) | 2012-11-29 | 2012-11-29 | Composite ammonia nitrogen removal agent and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210498698.5A CN102976464B (en) | 2012-11-29 | 2012-11-29 | Composite ammonia nitrogen removal agent and using method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN102976464A CN102976464A (en) | 2013-03-20 |
| CN102976464B true CN102976464B (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210498698.5A Expired - Fee Related CN102976464B (en) | 2012-11-29 | 2012-11-29 | Composite ammonia nitrogen removal agent and using method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002040410A1 (en) * | 2000-11-16 | 2002-05-23 | Halla Engineering & Industrial Developement Co., Ltd. | A remediation method of contaminated ground by injecting reactive material |
| US7635236B2 (en) * | 2006-03-30 | 2009-12-22 | Auburn University | In situ remediation of inorganic contaminants using stabilized zero-valent iron nanoparticles |
| CN101805065A (en) * | 2010-04-13 | 2010-08-18 | 南开大学 | Method for remediating pollution of nitrate nitrogen in underground water |
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2012
- 2012-11-29 CN CN201210498698.5A patent/CN102976464B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002040410A1 (en) * | 2000-11-16 | 2002-05-23 | Halla Engineering & Industrial Developement Co., Ltd. | A remediation method of contaminated ground by injecting reactive material |
| US7635236B2 (en) * | 2006-03-30 | 2009-12-22 | Auburn University | In situ remediation of inorganic contaminants using stabilized zero-valent iron nanoparticles |
| CN101805065A (en) * | 2010-04-13 | 2010-08-18 | 南开大学 | Method for remediating pollution of nitrate nitrogen in underground water |
Non-Patent Citations (5)
| Title |
|---|
| 微孔分子筛的合成及其去除水中氨氮的实验研究;陶红等;《环境污染治理技术与设备》;20040331;第5卷(第3期);第48-50页 * |
| 李海莹等.纳米铁的制备及其对污染地下水的脱硝研究.《南开大学学报(自然科学版)》.2006,第39卷(第1期),第8-13页. * |
| 纳米SiC水悬浮液稳定性的研究;郭小龙等;《青岛大学学报》;20010331;第14卷(第1期);摘要，第30页第4、6段，图1 * |
| 郭小龙等.纳米SiC水悬浮液稳定性的研究.《青岛大学学报》.2001,第14卷(第1期),第29-33页. |
| 陶红等.微孔分子筛的合成及其去除水中氨氮的实验研究.《环境污染治理技术与设备》.2004,第5卷(第3期),第48-50页. |
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| CN102976464A (en) | 2013-03-20 |
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