Metallic wastewater treatment by sulfate reduction using anaerobic rotating biological contactor reactor under high metal loading conditions

2018, Volume 12, Issue 4

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Frontiers of Environmental Science & Engineering >> 2018, Volume 12, Issue 4 doi: 10.1007/s11783-018-1073-4

Metallic wastewater treatment by sulfate reduction using anaerobic rotating biological contactor reactor under high metal loading conditions

¹. Centre for the Environment, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
². Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
³. Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India

Available online: 2018-08-09

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Abstract

An-RBC reactor is highly suited to treat metallic wastewater.

Metal removal is due to sulfide precipitation via sulfate reduction by SRB.

Cu(II) removal was the best among the different heavy metals.

Maximum metal removal is achieved at low metal loading condition.

Metal removal matched well with the solubility product values of respective metal sulfide salts.

Keywords

Factorial design analysis ; sulfate reducing bacteria ; multi-metal solution ; heavy metal removal ; anaerobic rotating biological contactor reactor ; high metal loading.

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