Pollution Research Paper

Vol.31, Issue 04, 2012; Page No.(681-686)

STUDIES OF ADSORPTION FOR DYE EFFLUENT AND DECOLOURIZATION OF METHYLENE BLUE AND METHYL BLUE BASED ON THE SURFACE OF BIOMASS ADSORBENT

NAVNEET BHULLAR, SANGEETA SHARMA AND DHIRAJ SUD

Abstract

Synthetic dyes are used extensively in the textile industry for dyeing nylon, wool, cotton, and silk, as well as for colouring oil, fats, waxes, varnish and plastics. The wastewater containing dyes emanating from textile mills are strongly coloured and are carcinogenic in nature. In order to reduce pollution load, it is desirable to decolorize the water and remove the organic constituents before its discharge into the main stream. In present study adsorption behaviour of Sugar cane bagasse for removal of Methylene blue and Methyl blue has been investigated in a batch reactor. Adsorption experiments were carried out using 100 ml of dye solution (50ppm) and adsorbent dose (0.5-2.0 g) at 150 rpm at 25oC. Rate of decolourization was estimated from residual concentration spectrophotometrically. The experimental results indicated that sugarcane bagasse can effectively remove 80-95 % of the cationic and anionic dyes. The high decolorizing efficiency was obtained with 2.0 g/l of adsorbent dose. The experimental results were subjected to Freundlich isotherm.

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