Nature Environment and Pollution Technology

Priyadarshini Pillai ¹

Affiliations
1 R. K. Institute of Management and Computer Science, Sarjapura Road, Bangalore-560 103, Karnataka, IN

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.

Keywords

Biological Adsorbents, Biosorption, Textile Dye and Printing, Effluent, Toxic Subastances.

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Priyadarshini Pillai ¹

Affiliations
1 R. K. Institute of Mangement and Computer Science, Bangalore-560 103, Karnataka, IN

Abstract

Toxic metal contamination of soil, aqueous waste streams and groundwater causes major environmental and human health problems. The most commonly used methods for dealing with heavy metal pollution are still extremely costly. Use of aquatic plants to extract, sequester and/or detoxify pollutants is a new and powerful technique for environmental cleanup. Plants are ideal agents for soil and water remediation because of their unique genetic, biochemical and physiological properties. The aim of this work is to evaluate the potential of free floating duck weed Lemna minor to remove heavy metals from wastewater and their biochemical effect on it. One-month laboratory experiments were conducted to mark the percentage removal of different heavy metals at different concentrations and the effect of heavy metals on nitrate reductase activity, total chlorophyll and protein contents of the plant. Approximately 93% of total heavy metal induced-toxicity appears resulting in the reduced activities of nitrate reductase, total chlorophyll and protein content of the plant. The results recommended the use of Lemna minor to ameliorate the wastewaters contaminated with heavy metals.

Keywords

Heavy Metals, Wastewater, Lemna minor, Biochemical Effects.

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