水资源与水工程学报Issue(1)：91-95,5.DOI:10.11705/j.issn.1672-643X.2015.01.018
纳米零价铁/活性炭复合材料去除水中六氯苯的影响因素研究
Study on factors that affect hexachlorobenzene removal in water by nano zero-valent iron/activated carbon composite
摘要
Abstract
The paper mainly investigated the hexachlorobenzene ( HCB) removal capability from water by nano zero valent iron/activated carbon and factors that affect removal capability.Results revealed that HCB removal fit Langmuir model well indicating chemical sorption.Monitoring of HCB and its potential dechlorination products confirmed that HCB removal include both adsorption and dechlorination.Solution pH and co-present anions and cations both affected HCB removal.HCB removal was favored at acidic pH since zero-valent iron oxidation was facilitated while pH was low.Bicarbonate, chloride and sulfate at low concentration could improve HCB removal through corrosion facilitation while the effect leveled off at high concentration.In contrast, nitrate competed with HCB for zero-valent iron can result in inhibition.HCB removal decreased with the increase of nitrate concentration.Cation such as magnesium has no effect on removal.However, presence of copper and ferrous enhanced removal by changing the solution pH and ze-ro-valent iron's redox characteristics.关键词
纳米零价铁/活性炭/六氯苯/水处理Key words
nano zero valent iron/activated carbon/hexachlorobenzene/water treatment分类
资源环境引用本文复制引用
王琼,陈维芳,潘玲,晏长成,张小毛..纳米零价铁/活性炭复合材料去除水中六氯苯的影响因素研究[J].水资源与水工程学报,2015,(1):91-95,5.基金项目
上海市自然科学基金项目（14ZR1428900）；上海市科委能力建设项目（13230502300）；教育部留学回国科研启动基金 （）
