杜桂荣,王春叶,丁红芳,郭国龙,刘扬,孙晓光.铀矿碱性浸出液中有机物的催化臭氧化降解技术研究[J].南华大学学报(自然科学版),2016,30(3):36~39.[DU Gui-rong,WANG Chun-ye,DING Hong-fang,GUO Guo-long,LIU Yang,SUN Xiao-guang.Catalytic Ozonation Degradation of Organic Compounds in Alkaline Leaching Solution of Uranium Deposit[J].Journal of University of South China(Science and Technology),2016,30(3):36~39.] |
铀矿碱性浸出液中有机物的催化臭氧化降解技术研究 |
Catalytic Ozonation Degradation of Organic Compounds in Alkaline Leaching Solution of Uranium Deposit |
投稿时间:2015-10-11 |
DOI: |
中文关键词: 催化臭氧化 有机物 铀矿 碱性浸出液 |
英文关键词:catalytic ozonation organic uranium ore alkaline leaching solution |
基金项目:2015年核工业北京化工冶金研究院院长基金资助项目 |
|
摘要点击次数: 702 |
全文下载次数: 371 |
中文摘要: |
采用催化臭氧化技术降解铀矿碱性浸出液中的有机物.由试验结果可知:单独臭氧化技术,有机物的降解率为15%;采用还原型催化剂(Ⅰ型:钒-二氧化锆-氮型;Ⅱ型:钒-二氧化硅-氮型;Ⅲ型:钒-二氧化钛-氮型),有机物的降解率为25%~30%,相对于单独臭氧化降解,降解率提高了14%~19%;采用氧化型催化剂(Ⅳ型:钒-二氧化锆-氧型;Ⅴ型:钒-二氧化硅-氧型;Ⅵ型:钒-二氧化钛-氧型),有机物的降解率为30%~65%,相对于单独臭氧化降解,降解率提高了21.8%、45.2%、53.7%;随着催化剂(Ⅵ型:钒-二氧化钛-氧型)用量的增大,有机物(CODCr)浓度越来越低,降解率逐渐升高,当用量大于0.8 g时,有机物(CODCr)降解率升高不明显,维持在60%~64%. |
英文摘要: |
It sudies degradation of organic compounds in uranium alkaline leaching solution by catalytic ozonation technology.The test results show:single ozonation technology,organic matter degradation rate was 15%;the reduced catalyst (type I:vanadium-two zirconia-nitrogen type;type II:vanadium-silica-nitrogen type;type III:vanadium-titanium dioxide-nitrogen type),organic matter degradation rate of 25%~30%,relative to the ozonation,the degradation rate increased by 14%~19%;using oxidation catalyst (type IV:two vanadium zirconium oxide oxygen;V:vanadium-silica-oxygen;type VI:vanadium titanium dioxide and oxygen),organic matter degradation rate of 30%~65%,compared with ozonation,the degradation rate increased 21.8%,45.2%,53.7%;with the catalyst (type VI:vanadium-titanium dioxide and oxygen) content increased,organic matter (CODCr) concentration is lower and lower,the degradation rate increased gradually,when the content was more than 0.8 grams,organic matter (CODCr) degradation rate increased significantly,maintained at 60%~64%. |
查看全文 查看/发表评论 下载PDF阅读器 |
关闭 |
|
|
|