DOI: 10.36347/sjet

Pages: 577-585

The textile industries in their production processes and biological laboratories in their research works throw quite a few quantities of various types of dyes and stains to the river’s water and sewerage. The problem is going to get worse if these wastewater from textile factories and biological laboratories poses without any treatment. This paper deals with examine the treating ability of polluted water with nine kinds of textile dyes and biological stainswhich were Congo red, direct black, direct brown, Indigo Carmine, haematoxylin, eosin, brilliant green, crystal violent and methylene blue using potato peels as low cost material with two methods, the first one is enzymatically method via extraction of polyphenol oxidase (PPO) enzyme from fresh potato peels and treating water polluted of high dyes concentrations with loaded PPO on zeolite prepared from rice husk and the other method is physically method through using potato peels residue from enzyme extraction process treating water polluted of low dyes concentrations by adsorption technique. The results show high ability of two methods (enzymatically and physically) to remove dyes from polluted water for both high and low concentrations.