Effect of chloride ion on bacterial pre-oxidation of arsenic-containing gold concentrate

作     者：杨玮 覃文庆 刘瑞强 任允超 

作者机构：School of Resources Processing and BioengineeringCentral South University Refinery of Shandong Gold Mining Co.Ltd. Engineering Design and Research Co.Ltd.Shandong Gold Corporation 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2011年第18卷第5期

页      面：1418-1424页

核心收录：

学科分类：081902[工学-矿物加工工程] 0819[工学-矿业工程] 08[工学] 

基　　金：Project(2007AA060902) supported by the National High Technology Research and Development Program of China Project(2010CB630905) supported by the National Basic Research Program of China 

主　　题：chloride ions arsenic-containing gold concentrate pre-oxidation bacterial adaptation critical concentration 

摘      要：The bacterial pre-oxidation process of arsenic-containing gold concentrates and the bacterial activity under different chloride ion concentrations were studied by using a mixture of thermophilic strains TCJ domesticated in *** experimental result shows that with different samples and leaching systems,the adaptability and Cl- tolerance of bacteria are different,and that appropriate chloride ion concentration is conductive to bacterial oxidation,while higher chloride ion concentration will inhibit the bacterial activity and affect the pre-oxidation *** the present production conditions,TCJ can adapt to the changes of water quality in the source of water and its critical chloride ion tolerance value is 2.7 g/L.