KMnO_(4)/NaHSO_(3)氧化还原体系处理难生化石化污水的试验研究  

Study on Refractory Petrochemical Wastewaters Treatment by KMnO_(4)/NaHSO_(3) Redox

作　　者：李静怡 徐斌 谭慧月 谢丽梅 尹可疑 徐冰洁[1] Li Jingyi;Xu Bin;Tan Huiyue;Xie Limei;Yin Keyi;Xu Bingjie(College of Resource and Environment,Jiujiang University,Jiujiang Jiangxi 332005,China;SINOPEC Jiujiang Company,Jiujiang Jiangxi 332004,China)

机构地区：[1]九江学院资源环境学院,江西九江332005 [2]中石化九江分公司,江西九江332004

出　　处：《石油石化绿色低碳》2022年第2期51-57,共7页Green Petroleum & Petrochemicals

基　　金：国家自然科学基金项目(21767013);九江学院大学生创新创业训练计划项目(x202111843181)。

摘　　要：利用KMnO_(4)/NaHSO_(3)氧化还原体系的超强氧化作用解决石化COD生化污水浓度高、毒性大的难题,意义重大。针对石化碱渣污水、碱渣预处理污水、煤气化污水和再生炭液污水等四种难生化污水特性,采用KMnO_(4)/NaHSO_(3)氧化还原体系处理的实验结果表明:处理效率高,处理时间小于20 min;处理效果好,最佳条件下对四种污水COD的去除率分别为67.00%、56.95%、93.58%和45.20%,对氨氮的去除率分别为34.93%、96.96%、57.60%和98.90%;COD和氨氮的去除主要是Mn(Ⅲ)的作用。Since refractory petrochemical wastewater is of high COD concentration and high toxicity,it is significant to solve this problem by means of the powerful oxidization process from KMnO_(4)/NaHSO_(3) redox system.Four types of petrochemical wastewaters were studied under different KMnO_(4)/NaHSO_(3) treatment conditions,including alkaline wastewater,pre-treated alkaline wastewater,coal gasification wastewater and activated carbon regeneration wastewater.The results indicated that the KMnO_(4)/NaHSO_(3) treatment was fast to achieve efficient pollution removal rate for less than 20 min.KMnO_(4)/NaHSO_(3) redox system performed well under the optimum conditions,and the four wastewaters reached the best COD removal rate of 67.00%,56.95%,93.58%and 45.20%,respectively.And they also reached the best ammonia nitrogen removal rate of 34.93%,96.96%,57.60%and 98.90%,respectively.The Mn(Ⅲ)was proved to be the main oxidant in the COD and ammonia nitrogen removal processes.

关 键 词：石化污水 难生化 氧化还原体系 氨氮 化学需氧量 

分 类 号：X74[环境科学与工程—环境工程]