Department of Chemical Engineering, King Saud University, P.O. Box 800, Riyadh, 11421, Saudi Arabia.
Environ Sci Pollut Res Int. 2018 Aug;25(22):21949-21960. doi: 10.1007/s11356-018-2315-5. Epub 2018 May 24.
In this study, a novel inexpensive biosorbent of pine cone powder was used for the treatment of wastewater contaminated with phenol and chlorophenols (CPhs). The biosorbent was thoroughly characterized by using CHN and BET measurements, as well as FTIR, SEM, and XRD analyses. Kinetic and equilibrium biosorption experiments showed that the uptake was more than 80% within the first 30 min of contact time at pH 5.0. The biosorption of 4-CPh onto pine cone powder was higher than those of phenol and 2-CPh. The kinetic data were consistent with the pseudo-first-order kinetic model, and the Langmuir isotherm model best represented the equilibrium data. The maximum biosorption capacities of phenol, 2-CPh, and 4-CPh were 164.51, 189.44, and 220.12 mg/g, respectively, at 30 ± 1 °C. Therefore, the pine cone powder is an effective low-cost adsorbent for the removal of phenol and CPhs from the contaminated water.
在这项研究中，使用一种新型的松果粉末廉价生物吸附剂来处理被酚和氯酚（CPhs）污染的废水。通过 CHN 和 BET 测量、FTIR、SEM 和 XRD 分析对生物吸附剂进行了全面表征。动力学和平衡吸附实验表明，在 pH 值为 5.0 时，接触时间在 30 分钟内，吸附量超过 80%。4-CPh 对松果粉的吸附高于酚和 2-CPh。动力学数据符合拟一级动力学模型，而 Langmuir 等温线模型最好地表示了平衡数据。在 30±1°C 时，酚、2-CPh 和 4-CPh 的最大吸附容量分别为 164.51、189.44 和 220.12 mg/g。因此，松果粉末是一种从受污染水中去除酚和 CPhs 的有效、低成本吸附剂。
