TITLE:
Ecofriendly Remediation of Pulp and Paper Industry Wastewater by Electrocoagulation and Its Application in Agriculture
AUTHORS:
Dushyant Kumar, Vivek Kumar Gaurav, Chhaya Sharma
KEYWORDS:
Pulp and Paper Wastewater, Electrocoagulation, Reuse, Irrigation, Sustainable Sludge Management
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.9 No.12,
November
26,
2018
ABSTRACT: In the present study pulp
and paper industry effluent was treated with the help of aluminum electrode
using electrocoagulation (EC) process with feasible sludge management. The
influences of pH, time, current density and electrolytes dose were investigated
and optimum conditions were established
to reduce the maximum amount of Chemical Oxygen Demand (COD) and color. At
optimum conditions 70% of
COD and 98% of color were removed. Additionally, the behavior of electrolytes
(NaCl and Na2SO4) was determined; it has shown that Na2SO4 results in the generation of less secondary pollutants than that NaCl and
thereby could be used as better replacement in paper industries for
electrocoagulation mediated treatment of wastewater. The residual amount of operational
parameters in EC treated water was compared to the World Health Organization
(WHO) and Central Pollution Control Board (CPCB) of India. It was found to be
safe for utilization in
irrigation. Furthermore, sludge produced during the EC process has been
analyzed for physicochemical characteristics. To understand the physical and
elemental phases of sludge, the analytical technique such as field emission
electron microscope coupled with energy dispersive spectroscopy has been used to find out the
possible management alternative.