摘要
考察了吸附平衡时间、污水浓度、液固比、反应温度和pH值对碳酸钠活化煤系高岭土吸附城市生活污水中有机物的影响,在此基础上又研究了吸附等温线.结果表明,当吸附平衡时间为2 h,液固比为60 mL/g,pH为6时,活化煤系高岭土对城市生活污水中有机物的吸附率达到最大,且加热不利于吸附反应的进行.碳酸钠活化煤系高岭土对城市生活污水中有机物的吸附行为更符合Langmuir方程,其吸附是以化学吸附为主.
The effect that the organic matter in the municipal wastewater was adsorpted by sodium carbonate-activated coal-series kaoline with the time of adsorption equilibrium,the concentration of wastewater,the liquid-solid ratio,reaction temperature,pH changed was studied,then the adsorption isothermal was studied too.The result showed that when the time of adsorption equilibrium was 2 h;the liquid-solid ratio was 60 mL/g;pH was 6,the adsorption rate that the organic matter in the municipal wastewater was adsorpted by sodium carbonate-activated coal-series kaoline could arrive the highest,and heat was bad for the adsorption reaction.The reaction accorded to Langmuir equation,and the adsorption reaction was main chemisty.
出处
《煤炭转化》
CAS
CSCD
北大核心
2011年第3期88-91,共4页
Coal Conversion
基金
四川省教育厅青年基金资助项目(07ZB112)
关键词
煤系高岭土
吸附
城市生活污水
有机物
coal-series kaoline
adsorption
municipal sewage
organic matter
