摘要
稀土含C_2O_4^(2-)废水的直接排放,不仅浪费酸和稀土资源,而且导致水系COD超标污染环境。叙述了稀土冶炼过程中所产生的含C_2O_4^(2-)废水的治理与回收利用技术研究进展,分析了现有的络合萃取法、直接回用法、沉淀法、蒸馏法、臭氧氧化法、溶液电解法等工艺方法的优缺点,以期为稀土含C_2O_4^(2-)废水的综合治理工作提供参考。
If rare earth wastewater including C2O4^2- were discharged directly, not only acid and rare earth would be wasted but also the COD of water system would be overproof. The treatment and recycling technology on rare earth metallurgy wastewater including C2O4^2- were described. The advantages and disadvantages of existing methods such as complexation extraction, directly recycling, precipitation, distillation, ozone oxidation and electrolysis were analyzed, which could provide some reference for the comprehensive management of wastewater through the analysis.
出处
《中国资源综合利用》
2016年第7期41-44,共4页
China Resources Comprehensive Utilization
基金
国家自然科学基金资助项目:"选择性氧化还原从荧光粉废料中回收稀土的基础研究"(51464012)
国家教育部第二批卓越工程师教育培养计划项目(教高函[2011]17号)
江西省研究生创新专项资金项目:"稀土草酸沉淀废母液回收利用技术研究"(YC2015-B064)
江西省教育厅科学技术研究项目:"草酸稀土沉淀废水中稀土及酸的回收利用技术研究"(GJJ150664)
江西理工大学科研基金项目:"稀土草酸沉淀废母液回收利用技术与机理研究"(NSFJ2014-G09)
