Mine Wastewater Treatment with Upflow Anaerobic Fixed Film Reactors

被引:0
|
作者
Islamud Din
Sardar Khan
Abd El-Latif Hesham
Sidra Irum
Cang Daqiang
机构
[1] International Islamic University Islamabad,
[2] University of Peshawar,undefined
[3] Beni-Suef University,undefined
[4] National University of Science & Technology,undefined
[5] University of Science & Technology Beijing,undefined
来源
Mine Water and the Environment | 2023年 / 42卷
关键词
Bioremediation; SRB (sulfate-reducing bacteria); Toxic metals; Carbon source, Ethanol;
D O I
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中图分类号
学科分类号
摘要
Microbial bioremediation of metals in wastewater by sulfate-reducing bacteria (SRB) has received much attention due to its high efficiency, eco-friendly techniques, and low cost. We investigated upflow anaerobic fixed film reactors (UAFFR) for removal of metals from artificial mine wastewater in the presence of two different carbon sources (lactate and ethanol), a range of temperatures, and pH. The UAFFR had different remediation reactors: R1 (inoculated directly with the sludge), R2 (inoculated with SRB-enriched culture), R3 (inoculated with SRB-enriched culture in combination with a pure culture of SRB species, i.e. Desulfotomaculum ruminis, to treat all of the metals together), and R4 (inoculated with an SRB-enriched culture in combination with the Desulfotomaculum ruminis, to treat individual metals). Of the four seeded reactors, those supplemented with SRB-enriched cultures (R2, R3, R4) removed the metals more efficiently than R1. The reactors using ethanol as the carbon source and polyhedral hollow balls removed sulfate and metals more efficiently than those with lactate and small pall rings.
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页码:340 / 347
页数:7
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