中国科技核心期刊
美国化学文摘社(CAS)数据库
美国EBSCO学术数据库
日本科学技术振兴机构数据库(JST)
In light of the high total cyanide and arsenic content in the cyanide tailings of a gold concentrate smelting enterprise,joint hydroperoxide oxidation and ferrous salt precipitation process is used to carry out detoxification treatment and the test conditions are optimized.The optimal test parameters are:hydroperoxide dosage is 2.0 mL/L,pH is 6.0-6.5,reaction time is 2 h for the cyanide detoxification phase;ferrous sulfate heptahydrate dosge is 0.50 g/L,hydroperoxide dosage is 1.0 mL/L,pH is 6.0-6.5,reaction time is 1 h for the arsenic detoxification phase.The mass concentrations of total cyanide and arsenic in the toxicity leaching solution from the cyanide tailings pulp filter are both lower than the tailings pond disposal standards according to HJ 943—2018 Technical Specification for Pollution Control of Cyanide Leaching Residue in Gold Industry,and the tailings can be stockpiled in the tailings pond.