Environmental Science & Technology Division, Central Building Research Institute (CBRI), Roorkee 247667, India.
Colloids Surf B Biointerfaces. 2010 Apr 1;76(2):544-8. doi: 10.1016/j.colsurfb.2009.12.016. Epub 2009 Dec 24.
The present study was undertaken to evaluate the feasibility of Punica granatum (pomegranate) peel waste for the removal of nickel from water. Batch experiments were performed to study the biosorption of nickel on prepared pomegranate peel adsorbent. The sorption process was well explained with pseudo-second-order kinetic model. The maximum sorption capacity of pomegranate peel adsorbent for nickel removal was ca. 52 mg g(-1). The sorption has been found to be endothermic and data conform to the Langmuir model. The Gibbs free energy was determined to be negative, indicating the spontaneous nature of the sorption process. The results of the present study suggest that pomegranate peel waste can be used beneficially for nickel removal from aqueous solution.
本研究旨在评估从水中去除镍的石榴皮废物的可行性。进行了批量实验以研究镍在制备的石榴皮吸附剂上的生物吸附。吸附过程很好地用伪二阶动力学模型解释。石榴皮吸附剂对镍去除的最大吸附容量约为 52mg/g。吸附被发现是吸热的，数据符合朗缪尔模型。吉布斯自由能被确定为负值，表明吸附过程是自发的。本研究的结果表明，石榴皮废物可用于从水溶液中有益地去除镍。
