Abstract
The removal of As (V) has been investigated in Fixed-bed column using radiation grafted adsorbent “chitosan grafted 2-Methacryloyloxyethyltrimethyl ammonium chloride”. Removal percentage of As (V) is found to be higher (98 %) at inlet concentration of As (V) 40 mg/L, flow rate 1 ml/min and bed depth 3 cm. The bed depth service time model and Thomas model are used to analyze the column data in terms of As (V) uptake rate and column capacities. Regeneration studies suggest maximum reusability of grafted polymer up to six cycles. Based on the As (V) uptake capacity, the developed grafted chitosan has been applied for the removal As (V) ions from contaminated ground water samples. The adsorbent has been found to be a potential adsorbent for toxic As (V) ions from water (>95 % removal) and could be regenerated effectively and used repeatedly for further experiment.
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