Catalytic oxidation and carbon adsorption for removing cyanide from coking plant effluent
Series of batch and continuous flow experiments were conducted to determine the feasibility of using activated carbon for removing residual cyanide from the coking plant effluent and to select the best carbon.Activated carbon removed cyanide by adsorption and catalytic oxidation;the fast adsorption step accounted for most of the initial removal while oxidation of the adsorbed cyanide was dependent on the availability of catalyst and other beneficial ingredients.Preloading copper on the base coal activated carbon signiticantly improved its cyanide removal capacity;the enhancement was more pronounced and longer lasting after the KI treatment to fix the loaded copper on the carbon.Results of the breakthrough expenments have confirmed the much higher cyanide removal capacity of Cu/KI-GAC.vefified the benefit of adding peroxide to the influent.and demonstrated that the catalytic oxidation of adsorbed cyanide during the 48-hr resting period effectively regenerated the used carbon to enable its long term cyanide removal service in a properly designed carbon treatment system.
Activated carbon Cu catalyst cyanide removal adsorption oxidafion
LIU Wan-dong ZHANG Wei LV Yan JIANG Wen-xing LI Bing-jing LIU You-liang YING Wei-chi
School of Resource and Environmental Engineering,East China University of Science and Technology,Shanghai 200237,China
国际会议
西安
英文
281-285
2008-05-15（万方平台首次上网日期，不代表论文的发表时间）