硅酸盐通报2017，Vol.36Issue(1)：197-204,8.
负载铈-锰活性炭对兰炭废水的吸附研究
Adsorption of Semi-coking Wastewater on Activated Carbon Loaded Cerium and Manganese
摘要
Abstract
Semi-coking wastewater was treated by self-made Ce-Mn/AC. The effects of pH and dosage of Ce-Mn/AC on COD removal rate of semi-coking waste water were studied by static examination of equilibrium adsorption. The adsorption properties of semi-coking wastewater on Ce-Mn/AC was investigated by using adsorption kinetics model, adsorption isotherm and adsorption thermodynamics model to fit the adsorption process, and the probable adsorption mechanism was induced by GC-MS and UV-vis analysis. The results show that the semi-coking wastewater adsorption capacity on Ce-Mn/AC was 82. 9 mg·g-1, and the COD removal rate was 84. 6% when under the Ce-Mn/AC dosage was 10 g· L-1 without adjusting the pH value of semi-coking wastewater. The adsorption kinetics fitted pseudo-second-order model, Freundlich model could better describe adsorption of semi-coking waste water by Ce-Mn/AC,△G<0,△H>0 and △S>0 indicated that the adsorption was spontaneous, endothermic and mainly by chemisorption process. Refractory organic compounds such as polycyclic aromatic hydrocarbons and nitrogen heterocyclic compounds were adsorbed before monocyclic aromatic compounds, so the effect of refractory organic compounds on the following semi-coking wastewater-treatment system was greatly induced and some data and theory foundation were provided. Adsorption and desorption experiments indicated that the adsorbent had a better property for repeated use.关键词
负载金属活性炭/兰炭废水/动力学/热力学/有机污染物Key words
metal loaded on activated carbon/semi-coking wastewater/kinetics/thermodynamics/organic pollutant分类
化学化工引用本文复制引用
高雯雯,弓莹,高艳宁,陈碧,蒋绪..负载铈-锰活性炭对兰炭废水的吸附研究[J].硅酸盐通报,2017,36(1):197-204,8.基金项目
陕西省科技厅项目(2015GY114) （2015GY114）
陕西省教育厅重点实验室访问学者项目(14js055) （14js055）
榆林市科技计划项目(2015CXY-14) （2015CXY-14）
