通讯机构：
Hengyang Key Laboratory for Soil Contamination Control and Remediation Technology, Resource Environment and Safety Engineering College, University of South China, Hengyang, China
作者机构：
[周孙林; 唐东山] Key Laboratory of Pollution Control and Resource Reuse of University of South China, College and University of Hunan Province, Hengyang , China;[唐东山] Institute of Environmental Protection and Safety Projects, University of South China, Hengyang , China;[姜鹏; 李富超; 陈华新] Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
通讯机构：
Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
作者机构：
[Tan, Yanpeng; Su, Qin] Univ South China, Sch Urban Construct, Hengyang 421001, Hunan, Peoples R China.;[Lv, Junwen; Zhang, Xiaowen; Tang, Dongshan] Univ South China, Sch Environm Protect & Safety Engn, Hengyang, Hunan, Peoples R China.
通讯机构：
[Tan, Yanpeng] U;Univ South China, Sch Urban Construct, Hengyang 421001, Hunan, Peoples R China.
会议名称：
2013 2nd International Conference on Energy and Environmental Protection, ICEEP 2013
会议时间：
19 April 2013 through 21 April 2013
会议地点：
Guilin, PEOPLES R CHINA
会议主办单位：
[Tan, Yanpeng;Su, Qin] Univ South China, Sch Urban Construct, Hengyang 421001, Hunan, Peoples R China.^[Zhang, Xiaowen;Lv, Junwen;Tang, Dongshan] Univ South China, Sch Environm Protect & Safety Engn, Hengyang, Hunan, Peoples R China.
会议论文集名称：
Advanced Materials Research
关键词：
Adsorption;Iron hydroxide colloids;Uranium
摘要：
<jats:p>The presence of the colloid will affect uranium heap leaching. The objective of this study was the examination of the ability of colloid retardation to uranium by irons hydroxide colloids simulated heap leaching process. Batch studies have been carried by observing the effects of pH, contact time, uranium concentration. Iron hydroxide colloids can exist stably at pH 1.5-3.0. The size of the colloid samples is between 20 nm and 1000 nm. The sorption equilibrium was attained at 24 h. The load uranium capacity on iron hydroxide colloids are between 2.43×10<jats:sup>-3</jats:sup> and 3.84×10<jats:sup>-3</jats:sup> mmol/mol. The colloid morphology of before and after loaded uranium were identified using S-4800 scanning electron microscopy (SEM/EDS). The load uranium capacity on iron hydroxide colloids is least at pH=2, it implies that the appropriate pH of uranium heap leach is 2.0 on the point of retardation of colloid to uranium migration.</jats:p>
