Anaerobic treatment of dye wastewater for the removal of organic pollutant

Abstract

The removal of cotton textile dye wastewater to the environment is a greater problem by its toxicological and aesthetical reasons. Many physicochemical methods were employed for treating the cotton textile dye wastewater. High cost and dangerous products produced by the physicochemical treatment reduce using these treatment methods. Hence the biological processes are employed for treating the cotton textile dye wastewater due to its cost effectiveness and less toxic effects.. Bio filter can be an effective solution for producing high quality water and saving water for recirculation. Bioball gives 80% reduction efficiency in BOD whereas Fixed filter media gives approx. 70% reduction efficiency in BOD The overall performance of the HUASBR achieved maximum COD removal of 87% at 24hrs HRT respectively. It is clearly understood that the % COD reduction is directly proportional to the HRT. Hence the HUASBR is suitable for treating real textile dye wastewater even upto 1300mg/l efficiency.