Efficiency of Natural Biological Adsorbents to Remove Pollutants from Textile, Dye and Printing Industry Effluent

Abstract

Adsorption is considered to be one of the most promising techniques for wastewater treatment over the last decades. The economic crisis of the 2000s led researchers to turn their interest in adsorbent materials with lower cost. The study was conducted to treat the Textile, dye and printing industry effluent using naturally occurring biological adsorbents (Areaca catechu, Moringa pterygosperma, Quercus infectoria and Tamarindus indica). The treatment was carried out on various concentrations (25%, 50% 75% and 100%) of dye effluent. Highest removal of pollutant was observed at lower effluent concentrations (25% and 50%) as compared to higher effluent concentrations (75 % and 100%). The addition of biological adsorbents has brought a significant reduction in various parameters of Textile, dye and printing industry effluent. The reduction in pollution load may be due to the coagulative / chelative property of Areaca catechu, Moringa pterygosperma, Quercus infectoria and Tamarindus indica can be used as low cost and safest biological adsorbents for removing toxic substances in Textile, dye and printing industry effluent.

Biodecolorization of azo dye Acid Blue 92 (AB92) by Ceratophyllum de-mersum L.: process optimization using Taguchi method and toxicity as-sessment

“…Discharge of colored effluents into rivers and lakes leads to reduced water quality, reduced oxygen transfer to water, and decreased solubility of gases (Pillai et al, 2014;Varjani et al, 2021). Dyes used in the textile industry are macromolecules not completely decomposed by conventional wastewater treatment processes due to their structure and nature.…”