Application of ethylene diamine tetra acetic acid degrading bacterium Burkholderia cepacia on biotreatment process
| Autor: | Wei-Ting Chen, Shu-Min Shen, Chi-Min Shu |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Environmental Engineering
Ethylene Bioengineering Burkholderia cepacia Wastewater Ferric Compounds chemistry.chemical_compound Acetic acid Chlorides Organic chemistry Waste Management and Disposal Effluent Edetic Acid Biological Oxygen Demand Analysis biology Renewable Energy Sustainability and the Environment General Medicine Biodegradation biology.organism_classification Waste treatment Biodegradation Environmental Activated sludge Burkholderia chemistry Batch Cell Culture Techniques Metals Water Pollutants Chemical Biotechnology Nuclear chemistry |
| Zdroj: | Bioresource Technology. 193:357-362 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2015.06.099 |
| Popis: | Ethylene diamine tetra acetic acid (EDTA), the effluent of secondary biotreatment units, can be properly biodegraded by Burkholderia cepacia. Through batch degradation of EDTA, the raw wastewater of EDTA was controlled at 50 mg/L, and then nutrients was added in diluted wastewater to cultivate activated sludge, which the ratio of composition is depicted as “COD:N:P:Fe = 100:5:1:0.5”. After 27 days, the removal efficiency of Fe-EDTA and COD was 100% and 92.0%, correspondingly. At the continuous process, the raw wastewater of EDTA was dictated at 166 mg/L before adding nutrients to cultivate activated sludge, in which the ratio of composition did also follow with batch process. After 22 days, the removal efficiency of Fe-EDTA and COD for experimental group was 71.46% and 62.58%, correspondingly. The results showed that the batch process was more suited for EDTA biodegradation. |
| Databáze: | OpenAIRE |
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