Effect of Electro-Coagulation of J.K. Paper Mill Effluent

摘要

In an attempt to treat the paper mill effluent heavily loaded with inorganic, organic compounds, of the order of COD 900 to 1200 mg/L, it was felt necessary to stimulate the entire experimental procedure for weakly loaded COD to bring it down to permissible limits as laid down by EPA (Environmental Protection Agency). The samples were treated for a period of 10 min to 45 min and energy density between 0.475 Kwhr/m~3 to 7.625 Kwhr/m~3. The pH was maintained between 7.0 to 10.0, the suspended solids (SS) and colloids precipitated out to the extent of 85% to 90%. Electro coagulation was used for COD reduction and colour composites. It was successfully executed for J.K. Paper Mill effluent. Electro coagulation uses electrical energy and is an energy intensive process and costs higher than other conventional methods. We have reviewed the process and present work is an extension of previous work.