Treatment of Heavy Metals Contaminated industrial waste water by functionalized polymers
- Research Scholar, Department of Environmental Engineering, Delhi Technological University, New Delhi – 42, India.
- Professor, Department of Environmental Engineering, Delhi Technological University, New Delhi - 42, India.
- Assistant Professor, Department of Civil Engineering, National Institute of Technology, Manipur, Imphal, India.
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Two amine base polymer aniline formaldehyde condensate (AFC) prepared and coated on silica gel and polyanilne synthesized on jute fiber (PANI-jute) were used as an adsorbent for removal of copper [Cu2+], and hexavalent chromium [Cr(VI)] from industrial wastewater. Series of batch adsorption experiments were conducted to investigate the effect of pH, mechanism of metal ions adsorption along with kinetics. With the increase in reaction pH, adsorption of cationic ions Cu2+ increased with maximum removal of 71% at pH 6through tridentate and bidentate coordination bond formed between nitrogen atom in AFC and positively charged Cu2+ by sharing electron. Both AFC and PANI achieved maximum removal of Cr(VI) at pH 3. Adsorption of both Cu(II) and Cr(VI) by AFC and PANI-jute were observed to obeyed Lagergren’s pseudo second order kinetic model suggesting chemiosorption. However, the efficiency of the adsorbent reduce by 10-15% when employed for actual industrial waste water due to presence of other co-ions.
[Tarundeep Gill, S.K. Singh, P. Albino Kumar (2015); Treatment of Heavy Metals Contaminated industrial waste water by functionalized polymers Int. J. of Adv. Res. 3 (Sep). 178-183] (ISSN 2320-5407). www.journalijar.com
