摘要
文章研究了活性碳纤维(ACFs)对水中五氯酚(PCP)的吸附行为、吸附条件及再生性能。结果表明,PCP在ACFs上的吸附容量较大,Langmuir及Freundlich等温线都能较好地反映其吸附行为;ACFs对水中分子和离子状态的PCP均可吸附,在最佳的静态吸附和动态吸附条件下,PCP去除率分别可以达到97%和99.8%;用0.01mol/L NaOH溶液进行再生,吸附量基本不变,五氯酚回收率可达90%以上。
Adsorption behavior, optimal conditions and regeneration efficiency of activated carbon fibers （ACFs） to absorb pentachlorophenol （PCP） in water was studied. Results showed that ACFs had higher adsorption capacity of PCP, with Freundlich isotherm and Langmuir isotherm as appropriate reflection for PCP. Speciation diagram of PCP revealed that ACFs can adsorb both PCP and pentachlorophenolate ion, with removal efficiency of PCP about 97% and 99.8% respectively under the optimum static and dynamic adsorption conditions. PCP could be recovered by 0.01mol/L NaOH solution and recovery for PCP was larger than 90%, after adsorption-desorption for three times.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2008年第10期19-21,25,共4页
Environmental Science & Technology
基金
湖北省自然科学基金重大项目(2006ABD005)
关键词
活性碳纤维
五氯酚
吸附
activated carbon fibers （ACFs）
pentachlorophenol
adsorption
