Abstract：The trend of acid generation and characterization of long term thallium release from one pyrite with carbonate in Guangdong were studied using kinetic weathering test in humidity cell. Results of leaching tests lasting about 2 years showed that the pH of leachates decreased slowly with time and maintained more than 5 for long time after pyrite exposure to air. Thallium released and showed high mobilization once pyrite exposed in air and than thallium release decreased wave-likely with weathering on. The pH of leachate above 5 had different impact on thallium release from pH5, lower pH could not cause more thallium releasing, concentration of dissolved thallium in leachate was positively with pH and reductive condition was good for thallium releasing.
李锦文, 陈南, 吴惠明, 常向阳, 陈永亨, Basra Sohan. 硫铁矿酸化过程中铊向水环境的释放迁移行为[J]. 中国环境科学, 2012, 32(6): 1026-1031.
LI Jin-Wen, CHEN 南, WU Hui-Ming, CHANG Xiang-Yang, CHEN Yong-Heng, Basra Sohan. Behavior of thallium release to water environment during the process of pyrite acidification. CHINA ENVIRONMENTAL SCIENCECE, 2012, 32(6): 1026-1031.