CN101624235B - Application of acetobacter aceti for processing copper-containing etching waste solution - Google Patents
Application of acetobacter aceti for processing copper-containing etching waste solution Download PDFInfo
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- CN101624235B CN101624235B CN2009100418007A CN200910041800A CN101624235B CN 101624235 B CN101624235 B CN 101624235B CN 2009100418007 A CN2009100418007 A CN 2009100418007A CN 200910041800 A CN200910041800 A CN 200910041800A CN 101624235 B CN101624235 B CN 101624235B
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- acetobacter aceti
- copper
- etching waste
- waste solution
- containing etching
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Abstract
The invention discloses application of acetobacter aceti for processing copper-containing etching waste solution. The acetobacter aceti can be directly used for processing the copper-containing etching waste solution, metabolites of the acetobacter aceti in the copper-containing etching waste solution can deposit copper ion, and the copper ion can be eliminated through simple filtration, so as to realize the aim that the copper-containing etching waste solution can be recycled by using the acetobacter aceti. The acetobacter aceti is less affected by the other iron in the copper-containing etching waste solution and has a significant effect for eliminating the copper iron. The acetobacter aceti is widely existed in acescent materials, the corrupt materials can be cultured and enriched with normal culture medium, and the resource cost of the acetobacter aceti is low, therefore, the invention reduces the processing cost of the copper-containing etching waste solution.
Description
Technical field
The present invention relates to the copper-containing etching waste solution treatment technology, specifically, relate to the application of acetobacter aceti in the Treatment of Copper etching waste liquor.
Background technology
Can use copper bearing solution or produce copper-containing etching waste solution in the industries such as printed-wiring board (PWB) (PCB) manufacturing, metal cleaning and surface treatment, production of inorganic, plating, sign manufacturing, copper hydrometallurgy, the concrete copper content of waste liquid can be divided into acid system and alkaline system at the 0.2-200 grams per liter.If not handled direct discharging, these copper-containing etching waste solutions can not cause very serious environmental pollution problem, existing conventional treatment method to heavy metal copper mainly comprises: chemical precipitation method, ion exchange method, evaporation concentration method, electrolytic process, gac and silica gel adsorption and membrane separation process etc., removal is thorough, expense is expensive, produce shortcomings such as poisonous mud or other waste materials but these methods exist.Therefore people are devoted to the heavy metal containing wastewater treatment technology and the technology of research and development efficient and environment-friendly type always.Microorganism treatment is to utilize biomaterial such as bacterium, fungi (yeast), algae and life Metabolic activity thereof to remove cupric ion in the waste water, its cardinal principle is to utilize microorganism that the absorption or the precipitating action of cupric ion are removed cupric ion, thereby reduces the concentration of heavy metal ions in wastewater.In the prior art disclosed can be used to absorption or precipitated copper ionic microorganism micrococcus luteus and yeast saccharomyces cerevisiae etc. are arranged, but in actual applications but seldom the utilization.Main reason is to also have other ions except cupric ion in the copper-containing etching waste solution, and for example arsenic, ammonium, lead, mercury or the like, these ionic exist can influence micrococcus luteus and the yeast saccharomyces cerevisiae removal effect to cupric ion.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists, the application of acetobacter aceti in the Treatment of Copper etching waste liquor is provided.
The contriver of this patent is devoted to the research work of microbiological treatment heavy metal always, through lot of experiments, the present invention finds that acetobacter aceti is when the Treatment of Copper etching waste liquor, the meta-bolites of its generation can form precipitation with cupric ion, and its treatment effect is fine, is subjected to that other ionic influence minimum in the etching waste liquor.
Acetobacter aceti, its Latin formal name used at school are Acetobacter aceti (Pasteur) Beijerinck, are one of important industrial bacterium, extensively be present in vinegar wine with dregs, beverage, fruit, vegetables and the material that becomes sour on.
Further, acetobacter aceti can be made microbial preparation with the general auxiliary material in other this areas when the Treatment of Copper etching waste liquor, be used further to the Treatment of Copper etching waste liquor.
Further, the present invention finds copper-containing etching waste solution pH value is adjusted at 8～10 o'clock, and the treatment effect of acetobacter aceti is better.
Further, the present invention finds that acetobacter aceti is better to the treatment effect of copper-containing etching waste solution when temperature is 20～35 ℃.Best treatment temp is 32 ℃.
Further, after the present invention finds with strong base solution acetobacter aceti to be carried out immersion treatment earlier before utilizing acetobacter aceti Treatment of Copper etching waste liquor, its better processing effect.
Compared with prior art, the present invention has following beneficial effect:
(1) acetobacter aceti provided by the invention can be directly used in the Treatment of Copper etching waste liquor, and the metabolite that acetobacter aceti produces in copper-containing etching waste solution can precipitate cupric ion, removes cupric ion through simple filtering step again.Thereby realize utilizing acetobacter aceti to copper-containing etching waste solution regenerated purpose.It is very little that acetobacter aceti provided by the invention is influenced by other ionic in the etching waste liquor, remarkable to the removal effect of cupric ion.
(2) acetobacter aceti of the present invention extensively is present on the material that becomes sour, and can adopt conventional substratum that corrupt substance is cultivated and enrichment, and the source cost of acetobacter aceti is low, thereby has reduced the processing cost of copper-containing etching waste solution.
Embodiment
Embodiment 1
Utilize acetobacter aceti to handle the method for etching waste liquor, comprise the steps:
(1) spawn culture: acetobacter aceti is inserted in the cultivation device, in the cultivation device, cultivate culture condition: 30 ℃ of anaerobic environments, pH7.0, temperature, incubation time 36 hours with the nutrition that contains Fe, S, C, N, P composition.
(2) with the acetobacter aceti in the cultivation device and meta-bolites thereof, nutrition as decoppering agent, be 3 with the pH value, the cupric ion volumetric molar concentration is the etching waste liquor (containing arsenic, ammonium, lead and mercury ion in this etching waste liquor) of 0.2mol/L, 4: 1000 by volume, pour into to mix in the bio-reactor and stir, temperature is 30 ℃, reacts 30 minutes, through the settling tank post precipitation, supernatant liquor filters through filter again, and after testing, content of copper ion is reduced to 0.023mg/L in the discharge water.
As seen, acetobacter aceti can be used for the cupric ion of Treatment of Copper etching waste liquor, can reduce the content of cupric ion in the copper-containing etching waste solution significantly.
Embodiment 2
On the basis of embodiment 1, with the acetobacter aceti in the cultivation device and meta-bolites thereof, nutrition as decoppering agent, be 3 with the pH value, the cupric ion volumetric molar concentration is the aqueous solution of 0.2mol/L, 4: 1000 by volume, pour into to mix in the bio-reactor and stir, temperature is 30 ℃, reacted 30 minutes, through the settling tank post precipitation, supernatant liquor filters through filter again, after testing, content of copper ion is reduced to 0.020mg/L in the discharge water.
As seen, acetobacter aceti is suitable with the treatment effect in etching waste liquor to the treatment effect of cupric ion in the aqueous solution.Arsenic, ammonium, lead and mercury ion in this explanation etching waste liquor do not influence the processing of acetobacter aceti to cupric ion basically.
Embodiment 3
On the basis of embodiment 1, the pH value with etching waste liquor is adjusted to 7 earlier, and other are constant, insert acetobacter aceti again.After testing, content of copper ion is reduced to 0.010mg/L in the discharge water.
As seen, be 7 o'clock in the pH value, acetobacter aceti to the treatment effect of cupric ion than being obviously to improve in 3 o'clock in the pH value.
Embodiment 4
On the basis of embodiment 1, the temperature of acetobacter aceti being handled etching waste liquor is adjusted to 32 ℃ by 30 ℃, and other are constant.After testing, content of copper ion is reduced to 0.012mg/L in the discharge water.
As seen, in the time of 32 ℃, acetobacter aceti is significantly improved than 30 ℃ to the treatment effect of cupric ion.
Embodiment 5
On the basis of embodiment 1, acetobacter aceti was soaked two hours with 4% sodium hydroxide solution (mass percent) earlier, and then insert in the cultivation device and cultivate, other are constant.After testing, content of copper ion is reduced to 0.014mg/L in the discharge water.
As seen, after acetobacter aceti was handled through highly basic, its treatment effect to cupric ion had strengthened.
Claims (6)
1. the application of acetobacter aceti (Acetobacter aceti (Pasteur) Beijerinck) in the Treatment of Copper etching waste liquor.
2. application as claimed in claim 1 is characterized in that acetobacter aceti and auxiliary material are made microbial preparation.
3. application as claimed in claim 1 is characterized in that utilizing the pH value of acetobacter aceti Treatment of Copper etching waste liquor is 8 ~ 10.
4. application as claimed in claim 1 is characterized in that utilizing the temperature of acetobacter aceti Treatment of Copper etching waste liquor is 20 ~ 35 ℃.
5. application as claimed in claim 4 is characterized in that utilizing the temperature of acetobacter aceti Treatment of Copper etching waste liquor is 32 ℃.
6. application as claimed in claim 1 is characterized in that with strong base solution acetobacter aceti being carried out immersion treatment earlier before utilizing acetobacter aceti Treatment of Copper etching waste liquor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100418007A CN101624235B (en) | 2009-08-11 | 2009-08-11 | Application of acetobacter aceti for processing copper-containing etching waste solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100418007A CN101624235B (en) | 2009-08-11 | 2009-08-11 | Application of acetobacter aceti for processing copper-containing etching waste solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101624235A CN101624235A (en) | 2010-01-13 |
| CN101624235B true CN101624235B (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100418007A Expired - Fee Related CN101624235B (en) | 2009-08-11 | 2009-08-11 | Application of acetobacter aceti for processing copper-containing etching waste solution |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106929686B (en) * | 2017-04-10 | 2020-06-23 | 惠州Tcl环境科技有限公司 | Method for cooperatively recovering copper in ferric trichloride etching waste liquid by utilizing metal sludge |
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Inventor after: Wu Yangdong Inventor after: Chen Weihua Inventor after: Wang Yongcheng Inventor before: Wang Yongcheng Inventor before: Chen Weihua |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG YONGCHENG CHEN WEIHUA TO: WU YANGDONG CHEN WEIHUA WANG YONGCHENG |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20110511 Termination date: 20210811 |