CAJ | 학술논문

以剩余活性污泥作吸附剂对水中Cr（Ⅵ）、Cd（Ⅱ）的去除进行了探讨。考察了pH值、吸附时间、吸附剂投加量和金属离子初始浓度对吸附去除率的影响。剩余活性污泥对Cr（Ⅵ）、Cd（Ⅱ）均遵循Langmuir等温线,且对Cr（Ⅵ））的吸附能力大于Cd（Ⅱ）。
이잉여활성오니작흡부제대수중Cr（Ⅵ）、Cd（Ⅱ）적거제진행료탐토。고찰료pH치、흡부시간、흡부제투가량화금속리자초시농도대흡부거제솔적영향。잉여활성오니대Cr（Ⅵ）、Cd（Ⅱ）균준순Langmuir등온선,차대Cr（Ⅵ））적흡부능력대우Cd（Ⅱ）。
This paper reports the removal of（Ⅵ） and（Ⅱ） from aqueous solution using residual activated sludge as biosorbents.The effects of various parameters like pH contact time,sorbent dose and initial concentrations were investigated.The Langmuir and Freundlich adsorption models were used to represent the experimental data and equilibrium data fitted well to Langmuir isotherm model for（Ⅵ） and（Ⅱ）.The results showed that the adsorption ability of residual activated sludge to（Ⅵ） is greater than（Ⅱ）.