期刊
WATER RESOURCES AND INDUSTRY
卷 11, 期 -, 页码 64-70出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.wri.2015.07.002
关键词
Cashew nut shell; Methylene blue dye; Response surface methodology; Statistical analysis; Parameter optimization
Activated carbon, prepared from an agricultural waste, cashew nut shell (CNS) was utilized as an adsorbent for the removal of methylene blue (MB) dye from aqueous solution. Batch adsorption study was carried out with variables like pH, adsorbent dose, initial dye concentration and time. The response surface methodology (RSM) was applied to design the experiments, model the process and optimize the variable. A 24 full factorial central composite design was successfully employed for experimental design and analysis of the results. The parameters pH, adsorbent dose, initial dye concentration, and time considered for this investigation play an important role in the adsorption studies of methylene blue dye removal. The experimental values were in good agreement with the model predicted values. The optimum values of pH, adsorbent dose, initial dye concentration and time are found to be 10, 2.1846 g/L, 50 ma and 63 min for complete removal of MB dye respectively. (C) 2015 The Authors. Published by Elsevier By.
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