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新型黄原酸酯对废水中Cd²⁺的吸附研究

Study on Cd²⁺ Absorption Characteristics for Waste Water of New Xanthate

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【Author】 TANG Wen-qing~(1,3),FENG Yong-lan~2,ZENG Rong-ying~2,HUANG Lei~2,ZOU Jian-ling~2(1.Department of Resources Environment and Tourism Management,Hengyang Normal University,Hengyang Hunan 421008,China;2.Department of Chemistry and Materials Science,Hengyang Normal University,Hengyang Hunan 421008,China;3.College of Environmental Science and Engineering,Hunan University,Changsha Hunan 410082,China)

【机构】衡阳师范学院资源环境与旅游管理系；衡阳师范学院化学与材料科学系；衡阳师范学院化学与材料科学系湖南衡阳421008；湖南大学环境科学与工程学院；湖南长沙410082；湖南衡阳421008；

【摘要】利用柚子皮纤维素制备新型黄原酸酯(SCX),对废水中Cd2+进行吸附研究。通过对影响其吸附效果的SCX用量、Cd2+初始浓度、pH值、反应温度、吸附时间等因素进行吸附实验。结果表明:当废水中Cd2+初始浓度为15mg/L时,0.022gSCX对Cd2+去除率高达99.36%,其吸附容量达33.87mg/g,具有良好的吸附性。SCX对Cd2+的吸附符合Langmiur和Freundlich方程。更多还原

【Abstract】 Xanthate was prepared by using shaddock peel cellulose.The product was then used to remove Cd²⁺from simulated wastewater.The adsorption experiments discovered that adsorption affect was controlled by the initial concentration of Cd²⁺,pH values in wastewater,adsorption period,the consumption of xanthate and the reaction temperature.The results also show that the rate of the removal of Cd²⁺ by xanthate of 0.022g can reach up to 99.36% and the adsorption capacity 33.87mg/g when the initial concentration of Cd²⁺in wastewater is 15mg/L.Xanthate,which has favorable adsorption characteristics for Cd²⁺.The adsorption process could be simulated by both Freundlich and Langmuir,which equation.更多还原