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Electrocoagulation process for textile wastewater treatment in continuous upflow reactor

DSpace at IIT Bombay

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Title Electrocoagulation process for textile wastewater treatment in continuous upflow reactor
 
Creator TYAGI, N
MATHUR, S
KUMAR, D
 
Subject Electro coagulation
textile wastewater
up flow reactor
COD removal
current density
ALUMINUM ELECTRODES
ORANGE-II
DECOLORIZATION
DYE
WASTEWATERS
COAGULATION
IRON
 
Description This study investigates the influence of operating parameters (current density, detention time and time of electrolysis) on COD and color removals from a simulated basic dyebath effluent using electrocoagulation (EC) with iron electrodes in continuous flow mode. Till today, researchers are mainly focused on use of EC systems in batch processes. Looking to large quantities of wastewater from textile Industry, continuous flow regime may offer a better solution. Firstly, the operational parameters including current density (i), detention time (DT) and time of electrolysis were optimized. Then, total electric work (E) and sacrificial weight of anode were calculated under optimum conditions. The size of electrode plate (5cm*5cm*0.5cm, 124cm(2)) was kept constant for all sets of experiments. Our results indicated that for a solution of 300mg/L basic red dye 5001 B, almost 76% COD and 95% color were removed, when the pH was about 9, the DT was 20 min and the j was 14-17 mA/cm(2). Pseudo steady-state was achieved after passing 60 minutes of current in the solution. In addition, the result of our study indicates that when the j and DT was increased above optimum level, charge reversal and surface saturation was occur due to the excessive addition of coagulant.
 
Publisher NATL INST SCIENCE COMMUNICATION-NISCAIR
 
Date 2014-12-28T09:13:23Z
2014-12-28T09:13:23Z
2014
 
Type Article
 
Identifier JOURNAL OF SCIENTIFIC & INDUSTRIAL RESEARCH, 73(3)195-198
0022-4456
0975-1084
http://dspace.library.iitb.ac.in/jspui/handle/100/16258
 
Language English