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Batch Studies on Hexavalent Uranium Removal by Zerovalent Iron and Impact of Pyrite

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成果类型:
会议论文
作者:
Yi, Zhengji*
通讯作者:
Yi, Zhengji
作者机构:
[Yi, Zhengji] Hengyang Normal Univ, Coll Hunan Prov, Key Lab Funct Organometall Mat, Hengyang, Hunan, Peoples R China.
通讯机构:
[Yi, Zhengji] H
Hengyang Normal Univ, Coll Hunan Prov, Key Lab Funct Organometall Mat, Hengyang, Hunan, Peoples R China.
语种:
中文
关键词:
zerovalent iron;pyrite;uranium;kinetics;coprecipitation
期刊:
CONFERENCE ON ENVIRONMENTAL POLLUTION AND PUBLIC HEALTH, VOL 1-2
年:
2010
页码:
1259-1262
会议名称:
1st Conference on Environmental Pollution and Public Health
会议时间:
SEP 10-11, 2010
会议地点:
Wuhan, PEOPLES R CHINA
会议主办单位:
[Yi, Zhengji] Hengyang Normal Univ, Coll Hunan Prov, Key Lab Funct Organometall Mat, Hengyang, Hunan, Peoples R China.
会议赞助商:
Conference Overseas Chinese Pioneering & Dev China, Wuhan Univ, Nankai Univ, Coll Env Sci & Engn, Profess Comm Pollut Ecol, Ecolog Soc China, Tongji Univ, Coll Env Sci & Engn, Sci Res Publishing
出版地:
5005 PASEO SEGOVIA, IRVIN, CA 92603-3334 USA
出版者:
SCI RES PUBL, INC-SRP
ISBN:
978-1-935068-16-7
机构署名:
本校为第一且通讯机构
院系归属:
化学与材料科学学院
摘要:
Batch experiments were conducted under static and dynamic conditions respectively to explore the mechanism and kinetics of U(VI) immobilization by zerovalent iron (ZVI) and the impact of pyrite. The dynamic results suggest that the U(VI) immobilization reaction by ZVI shows pseudo-first order with respect to U(VI) concentration. When the initial U(VI) concentration increased from 50 to 300mg/L at a fixed ZVI loading (2%), the rate constantly decreased from 0.1776 h(-1) to 0.0177 h(-1). The static results show that ZVI system removed U(VI) very quickly whereas the FeS(2) system did the most slo...

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