eprintid: 1314 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/13/14 datestamp: 2023-11-09 15:49:28 lastmod: 2023-11-09 15:49:28 status_changed: 2023-11-09 15:39:28 type: article metadata_visibility: show creators_name: Sudesh, S. creators_name: Meenakshi, M. creators_name: Sheeja, R.Y. creators_name: Murugesan, T. title: Optimization studies on biosorption of copper (II) by crab shell using response surface methodology(RSM) ispublished: pub keywords: Aqueous solutions; Batch experiments; Biosorbents; Box-Behnken design; Copper concentration; Correlation coefficient; Crab shell; Crab shells; Experimental data; Experimental values; Initial pH; Optimization studies; Quadratic regression; Response surface method; Response Surface Methodology; Second orders, Biosorption; Mathematical models; Optimization; Regression analysis; Shells (structures); Surface properties, Copper note: cited By 1 abstract: In the present work, crab shell was used as the biosorbent to remove copper from aqueous solution. Batch experiments were performed at different initial copper concentration of copper solutions (1-40 g/l), initial pH (2-9), temperature (20-400°C), and biosorbent dosages (2-10 g/l). The maximum removal of copper using crab shell occurred at a pH of 3 and at a temperature of 400°C using an optimum biosorbent dosage of 5 g/l. A mathematical model was proposed to identify the effects of the individual interactions of these variables on the biosorption of copper. The results have been modeled using response surface methodology using a Box-Behnken design. The response surface method was developed using three levels (-1, 0, +1) with the above mentioned four factors. The second order quadratic regression model fitted the experimental data with Prob > F to be < 0.0001. The experimental values were found to be in good agreement with the predicted values, with a satisfactory correlation coefficient of R2= 0.9999. © 2010 The Berkeley Electronic Press. All rights reserved. date: 2010 official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-77249108319&doi=10.2202%2f1934-2659.1357&partnerID=40&md5=452e66a25c0693fe4e37fd34df9f375c id_number: 10.2202/1934-2659.1357 full_text_status: none publication: Chemical Product and Process Modeling volume: 5 number: 1 refereed: TRUE issn: 19342659 citation: Sudesh, S. and Meenakshi, M. and Sheeja, R.Y. and Murugesan, T. (2010) Optimization studies on biosorption of copper (II) by crab shell using response surface methodology(RSM). Chemical Product and Process Modeling, 5 (1). ISSN 19342659