Treatment of simulation of copper-containing pit wastewater with sulfate-reducing bacteria (SRB) in biofilm reactors
| Autor: | Hu Yuanwei, Yalin Zhang, Hu Xuewei, Zuo Xiaolin, Kai Chen |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0208 environmental biotechnology
Soil Science chemistry.chemical_element 02 engineering and technology 010501 environmental sciences 01 natural sciences chemistry.chemical_compound Bioreactor Environmental Chemistry Pit water Sulfate-reducing bacteria 0105 earth and related environmental sciences Earth-Surface Processes Water Science and Technology Global and Planetary Change Waste management Biofilm Geology Pulp and paper industry Pollution Copper 020801 environmental engineering Copper sulfide Wastewater chemistry Bagasse |
| Zdroj: | Environmental Earth Sciences. 75 |
| ISSN: | 1866-6299 1866-6280 |
| DOI: | 10.1007/s12665-016-6108-1 |
| Popis: | A low-cost, long-term and maintenance-free method was put forward to treat simulation of copper-containing pit wastewater which has caused a widespread environmental problem in Yunnan Province, China. The objective of this work was to investigate the treatment of low concentrations of Cu2+ in the mine pit water with sulfate-reducing bacteria (SRB) using bagasse as both the slow-release carbon source and the carrier in biofilm reactors. Following the long-term trail experiment for 200 days, the Cu2+ concentration decreased from 10 to 0.2 mg/L in the SRB biofilm system. The result showed utilizing the bagasse as both the slow-release carbon source and the carrier in biofilm reactors showed good and stable performance for Cu2+ removal with long-term maintenance-free. Through the analysis of sediment samples indicated that the sediment was basically copper sulfide precipitate, which proved the feasibility of copper recovery in our bioreactors. It revealed the feasibility of bagasse for SRB to remove Cu2+ and provided a potential method to treat mine pit water. |
| Databáze: | OpenAIRE |
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