Moringa oleifera: A COST EFFECTIVE COAGULANT FOR DYE DEGRADATION

Abstract

The purpose of the work is to understand the effect of the ratio of Moringa olifera Seed powder and NaCl, current density, initial pH and agitation speed on color removal efficiency as well as COD removal from synthetic textile wastewater in the electro-coagulation technique using iron and steel electrodes. The suitable conditions for reducing color as well as COD were as follows: ratio of Moringa Olifera Seed powder and NaCl = 1: 1.5; current density = 15 mA/cm2; initial pH = 7-8; agitation speed = 400 rpm. The efficiency of color reduction and COD reduction under these conditions were found to be 60% and 55% respectively. This investigation proved that the electro-coagulation technique is a suitable method for the treatment of dye industry effluents for the purpose of reuse.

Biosorption of Textile Industry Effluent Using Acid Treated Sugarcane Bagasse: Factorial Design of Experiments

“…In contrast, Ponnusami et al, 2007 5 andGong et al, 2005 17 reported maximum color removal efficiency at low pH. It is also found that color removal rate as well as COD removal rate increased by about 10% with an increase in adsorbent dosage from 3 to 8 g/dm 3 .…”

“…Owing to toxic nature, chemical composition and volume discharged, the dye effluent disposed of various textile and dyeing industries can be considered as pollutants in Asian countries 2 and it must be treated by appropriate technique in order to save surroundings 3 . The effluent discharged from textile and dyeing industry contains toxic, mutagenic, carcinogenic chemical compounds which are harmful to live organisms and human being 4 .…”