摘要
以城市和巨化污水厂的生化污泥及剩余污泥为原料,采用氯化锌活化法制备活性炭,试验考察了不同污泥及制备条件对活性炭吸附性能的影响,结果表明:不同来源的污泥由于组成不同,制备所得的活性炭吸附性能也有差异,挥发份含量高的污泥制备所得的活性炭具有较高的碘值;制备条件对活性炭吸附性能有重要的影响,其影响程度依次为活化温度>活化时间>质量比;在用制备的其中两种活性炭吸附含Cr(VI)废水试验中,发现均具有较好的去除效果。
The activated carbon was prepared by taking biochemical sludge from city sewage and Ju Hua Plant as raw materials with ZnCl2 activation method. The effect of different raw materials and preparation conditions on absorbing capability of activated carbons was studied. The result showed that the absorbing capability of activated carbons varied due to the different components of sludge. The iodine value of activated carbon from the sludge with higher volatile content was bigger. Effect of preparation conditions on the iodine value was in the following order： activation temperature 〉 activation time 〉 weight ratio. In the experiment of using two of those activated carbons to absorb Cr（Ⅵ）, the treatment effect of two absorbents were both good.
出处
《安全与环境工程》
CAS
2008年第2期61-63,68,共4页
Safety and Environmental Engineering
基金
浙西分校资助项目(QY0635)
衢州市科技局计划项目(20061032)资助
关键词
污泥
活性炭
挥发份
含Cr(Ⅵ)废水处理
sludge
activated carbon
volatile content
treatment of Cr（Ⅵ） wastewater
