Removal of Remazol Red Dye with Live Cell Aspergillus Terreus

Abstract

Today a number of industries such as textile, paper and printing whose processes involve dyes discharge wastewater containing heavy pollution load directly into a receiving environment. Dyes, which are mutagenic and carcinogenic, spread across the receiving environment, threatening aquatic populations and human health severely. It is possible to reduce the contamination caused by these dyes by using biological methods. In this study, the decolorization technique is utilized for the treatment of textile industry wastewater. In order to achieve optimum efficiency, the optimal pH , temperature (30-4050 °C), biosorbent dose (0.025-0.05-0.1 g.) and stirring speed (75-100-125 rpm) were determined with the help of Taguchi L9orthogonal array design. During the decolorization process, the sorption capacity of live cell Aspergillus terreus with Remazol Red (RR) dye measured 16.4 (mg/g) and the removal efficiency measured %75.3 in conditions of pH 4.0, temperature 30 °C, biosorbent dose 0.1 g. and the rotational speed 125 rpm on 5th days.

Today a number of industries such as textile, paper and printing whose processes involve dyes discharge wastewater containing heavy pollution load directly into a receiving environment. Dyes, which are mutagenic and carcinogenic, spread across the receiving environment, threatening aquatic populations and human health severely. It is possible to reduce the contamination caused by these dyes by using biological methods. In this study, the decolorization technique is utilized for the treatment of textile industry wastewater. In order to achieve optimum efficiency, the optimal pH , temperature (30-4050 °C), biosorbent dose (0.025-0.05-0.1 g.) and stirring speed (75-100-125 rpm) were determined with the help of Taguchi L9orthogonal array design. During the decolorization process, the sorption capacity of live cell Aspergillus terreus with Remazol Red (RR) dye measured 16.4 (mg/g) and the removal efficiency measured %75.3 in conditions of pH 4.0, temperature 30 °C, biosorbent dose 0.1 g. and the rotational speed 125 rpm on 5th days.