Study of the Effect of Saline Solution on the Extraction of the Tamarind Seed Extracts Active Coagulant for Textile Wastewater Treatment

S. Vijayakumar

doi:10.3759/jowrem.v1i3.1812

Abstract

The use of synthetic coagulants is not regarded as suitable due to health and economic considerations. A new coagulant obtained through polymerization of tamarind seed extract has been characterized in the removal of dangerous dye pollutants. The present study was aimed to investigate the effects of tamarind seed extract as coagulant in treatment of textile wastewater. The coagulant prepared was employed for the removal of sludge at the different doses. The coagulant was found to be capable of removing sludge from wastewater. The color removal capacity of tamarind seed was approximately 100% at normal pH and temperature. From the experimental investigations, the maximum color, sludge removal from the textile industry wastewater was obtained at an optimum coagulant dosage of 25 mg/L of wastewater, with an optimum contact time of 1 h, at room temperature. This result was higher than the results obtained by different process parameters for various coagulants. The transmittance were found to be 83% with an absorbance of 0.07, TDS reduced from 5.15 to 3.3 PPT, BOD too was reduced from 160 to 20 mg/L. Also owing to the coagulation process several other parameters such as chloride, sulfate, iron, COD were also reduced considerably.