摘要
研究了Cr3+改性膨润土吸附苯胺的性能及适宜条件 .结果表明 ,Cr3+改性膨润土对苯胺具有很好的吸附效果 ,吸附过程很快达到平衡 ,酸性和中性环境均有利于吸附过程的进行 .绘制了不同初始浓度下苯胺溶液在平衡浓度达国家工业废水第二类污染物三级排放标准和二级排放标准时 ,Cr3+改性膨润土的用量和吸附等温线 ,并将吸附效果与原钙基膨润土。
The properties and optimal conditions for Cr 3+ bentonite to adsorb aniline were investigated.High sorption percentages of aniline on Cr 3+ bentonite were found.Acidity and neutrality conditions were favorable.The mass curves of Cr 3+ bentonite when the equilibrium concentrations of aniline met the discharge criterion of national industrial wastewater for the second category contaminants and isothermal sorption curves of aniline were obtained.The sorption effects of aniline by Ca 2+ bentonite,Na + bentonite,organobentonite and Cr 3+ bentonite were compared.
出处
《环境化学》
CAS
CSCD
北大核心
2003年第4期369-372,共4页
Environmental Chemistry
基金
中国科学院生态环境研究中心环境水质学国家重点实验室开放基金资助 (基金编号 :2 0 0 1 0 1 0 )
