Bioelectrochemical oxidation of organics by alkali-halotolerant anodophilic biofilm under nitrogen-deficient, alkaline and saline conditions

•First study on bioelectro-oxidation of oxalate under alkaline and saline conditions.•Activated sludge as inoculum and effect of nitrogen supplementation were tested.•Acetate was required as co-substrate with oxalate for start-up.•The established bioanodes efficiently converted acetate and formate t...

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