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Title: Optimization of Process Parameters for Acrylonitrile Removal by a Low-cost Adsorbent using Box–Behnken Design
Authors: Kumar, Arvind
Prasad, B
Mishra, I M
Keywords: Box–Behnken
Response surface methodology (RSM)
Issue Date: 2008
Publisher: Elsevier
Citation: Journal of Hazardous Materials Volume150, 2008, Pages 174–182
Abstract: In the present work, acrylonitrile removal from wastewater was investigated using an agri-based adsorbent-sugarcane bagasse fly ash (BFA). The effect of such parameters as adsorbent dose (w), temperature (T) and time of contact (t) on the sorption of acrylonitrile by BFAwas investigated using response surface methodology (RSM) based on Box–Behnken surface statistical design at an initial acrylonitrile concentration, C0 = 100 mg/l as a fixed input parameter. The results of RSM indicate that the proposed models predict the responses adequately within the limits of input parameters being used. The isotherm shows a two-step adsorption, well represented by a two-step Langmuir isotherm equation. Thermodynamic parameters indicate the sorption process to be spontaneous and exothermic.
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