Abstract
The study was conducted to treat the textile, dye and printing industry effluent using natural 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 significant reduction in various parameters of textile, dye and printing industry effluent. The reduction in pollution load may be due to the coagulative and chelative property of Areaca catechu, Moringa pterygosperma, Quercus infectoria and Tamarindus indica, which can be used as low cost and safe biological adsorbents for removing toxic substances in textile, dye and printing industry effluent.