Pajooheshfar Seyed Pejvak, Saeedi Mohsen
School of Civil Engineering, Iran University of Science and Technology, Tehran, Iran.
Water Environ Res. 2009 Jun;81(6):641-8. doi: 10.2175/106143008x390780.
The adsorption process is gaining interest as an effective process for advanced water and wastewater treatment. Phenol, as a toxic material in industrial effluents, should be removed because of its environmental and health effects. The present study involves an investigation of the use of three carbonaceous materials--activated carbon laboratory-grade (ACL), almond shell charcoal (ASC), and walnut shell charcoal (WSC)--as adsorbents for the removal of phenol from aqueous solutions. For the first time, the adsorptive removal of phenol using ASC and WSC was investigated. Findings have been compared with (ACL) results. Batch experiments were carried out to obtain adsorption equilibrium isotherms with phenol-spiked synthetic solutions. The effects of adsorbent amounts, pHo, initial concentration, and contact time on the adsorption of phenol were studied. Maximum removals of phenol from contaminant water with ACL, ASC, and WSC were 99.87, 91.36, and 78.17%, respectively, and from industrial wastewater were 99.71, 85.54, and 65.49%, respectively.
吸附过程作为一种先进的水和废水处理有效方法正受到关注。苯酚作为工业废水中的有毒物质，因其对环境和健康的影响而应被去除。本研究涉及对三种含碳材料——实验室级活性炭（ACL）、杏仁壳炭（ASC）和核桃壳炭（WSC）——作为从水溶液中去除苯酚的吸附剂的使用情况进行调查。首次对使用ASC和WSC吸附去除苯酚进行了研究。研究结果已与（ACL）的结果进行了比较。进行了批量实验以获得含苯酚的合成溶液的吸附平衡等温线。研究了吸附剂用量、初始pH值、初始浓度和接触时间对苯酚吸附的影响。ACL、ASC和WSC从污染水中去除苯酚的最大去除率分别为99.87%、91.36%和78.17%，从工业废水中去除苯酚的最大去除率分别为99.71%、85.54%和65.49%。
