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Electrochemical Treatment of Rice Grain‐Based Distillery Biodigester Effluent
Author(s) -
Kumar Prajapati Abhinesh,
Kumar Chaudhari Parmesh
Publication year - 2014
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201300035
Subject(s) - effluent , electrolysis , chemical oxygen demand , electrocoagulation , batch reactor , electrochemistry , pulp and paper industry , electrode , settling , thermogravimetric analysis , biochemical oxygen demand , chemistry , biogas , pollution , environmental science , suspended solids , waste management , environmental engineering , sewage treatment , wastewater , catalysis , electrolyte , organic chemistry , engineering , ecology , biology
Chemical oxygen demand (COD) and color reduction of biodigester effluent (BDE) in a batch electrocoagulation (EC) reactor were investigated using an iron electrode. The effects of various parameters such as pH, current density, electrode gap, and electrolysis time were evaluated. Energy requirement and electrode loss were found to be functions of the pH. The settling and filterability characteristics of the treated solution were best at low pH. The results demonstrate that EC can be employed in rice grain‐based distilleries to reduce the pollution load. Thermogravimetric analysis indicates that the residues obtained from the EC‐treated BDE may be used as fuel.