Author(s)

Dushyant Kumar, Chhaya Sharma^*

Environmental Research Laboratory, Department of Paper Technology, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, India.

Electrocoagulation of pulp and paper industry effluent with SS-304 electrode has been carried out under varying process variable such as pH, current density, time and dose of electrolyte to find out the optimum conditions. Maximum reduction efficiency of Chemical Oxygen Demand (COD) 82% and color more than 99% from pulp and paper industry wastewater at the following conditions pH = 7, current density = 24.80 mA/cm² time = 40 min and dose of electrolytes = 1.0 g/L. Moreover, effects of electrolytes dosage on electricity consumption were observed and found to be that NaCl is better in comparison of Na₂SO₄ in respect of lower down the electricity consumption. But application of NaCl causes the formation of hazardous compounds as secondary pollutants within treated water. Therefore, Na₂SO₄ could be a potent replacement of NaCl to enhance the conductivity of paper industry effluent treated by EC process. The treated water has been compared with standard of Central Pollution control board (CPCB) and World Health organization, and found to be suitable for the reuse in irrigation.

Pulp Paper Industry, Electrocoagulation Treatment, Wastewater, Reuse, Chemical Oxygen Demand, Color

Kumar, D. and Sharma, C. (2019) Remediation of Pulp and Paper Industry Effluent Using Electrocoagulation Process. Journal of Water Resource and Protection, 11, 296-310. doi: 10.4236/jwarp.2019.113017.