Garg Umesh K, Kaur M P, Garg V K, Sud Dhiraj
Department of Chemistry, Sant Longowal Institute of Engineering and Technology, Longowal 148 106, India.
Bioresour Technol. 2008 Mar;99(5):1325-31. doi: 10.1016/j.biortech.2007.02.011. Epub 2007 Mar 26.
In the present study, effect of adsorbent dose, pH and agitation speed on nickel removal from aqueous medium using an agricultural waste biomass, Sugarcane bagasse has been investigated. Batch mode experiments were carried out to assess the adsorption equilibrium. The influence of three parameters on the removal of nickel was also examined using a response surface methodological approach. The central composite face-centered experimental design in response surface methodology (RSM) by Design Expert Version 6.0.10 (Stat Ease, USA) was used for designing the experiments as well as for full response surface estimation. The optimum conditions for maximum removal of nickel from an aqueous solution of 50 mg/L were as follows: adsorbent dose (1500 mg/L), pH (7.52) and stirring speed (150 rpm). This was evidenced by the higher value of coefficient of determination (r(2)=0.9873).
在本研究中，研究了吸附剂用量、pH值和搅拌速度对使用农业废弃物生物质甘蔗渣从水介质中去除镍的影响。进行了批次模式实验以评估吸附平衡。还使用响应面方法研究了这三个参数对镍去除的影响。使用美国Stat Ease公司的Design Expert 6.0.10版本进行响应面方法（RSM）中的中心复合面心实验设计，以设计实验并进行完整的响应面估计。从50 mg/L的水溶液中最大程度去除镍的最佳条件如下：吸附剂用量（1500 mg/L）、pH值（7.52）和搅拌速度（150 rpm）。这由较高的决定系数值（r(2)=0.9873）证明。
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