以松花江滤后水为研究对象,利用不同质量浓度臭氧氧化降解水中有机污染物.结果表明臭氧氧化对CODMn的去除能力随臭氧投量增加而增加,但去除率并不是随着臭氧投量的增加而相应的呈线性增加,说明臭氧氧化存在最佳臭氧投量.臭氧对UV254的...以松花江滤后水为研究对象,利用不同质量浓度臭氧氧化降解水中有机污染物.结果表明臭氧氧化对CODMn的去除能力随臭氧投量增加而增加,但去除率并不是随着臭氧投量的增加而相应的呈线性增加,说明臭氧氧化存在最佳臭氧投量.臭氧对UV254的去除效果很明显,较短时间内,就可以达到较好的去除效果.臭氧氧化在1 m in内对DOC去除效果明显,之后随着臭氧质量浓度降低,反应速率下降,并且臭氧氧化使得一些POC转化为DOC,从而去除率呈现为负值.臭氧氧化难以去除氨氮,较易将有机氮氧化生成氨,从而使得氧化后水中的氨氮有所升高,氨氮去除率呈现负值.臭氧对松花江水中有机物的氧化不完全,对氨氮去除效果不佳,而且生成的中间产物会阻止臭氧进一步氧化,因此臭氧氧化后再接生物处理效果会更好.展开更多
The kinds of organic pollutant of different sampling periods in Songhua River’s water have been analyzed by GC/MS method. The preparation courses of the sample and determination’s condition were discussed. The resul...The kinds of organic pollutant of different sampling periods in Songhua River’s water have been analyzed by GC/MS method. The preparation courses of the sample and determination’s condition were discussed. The results indicate that in three sampling period, the kinds of organic pollutant are the most in medium water period, the least in low water period. the kind of polycyclic aromatic hydrocarbons was influenced most by sampling period, the kind of substitute benzenes went next, The kind of phthalate esters slightly. the experiment results are significant to protect environment and people’s health.展开更多
文摘以松花江滤后水为研究对象,利用不同质量浓度臭氧氧化降解水中有机污染物.结果表明臭氧氧化对CODMn的去除能力随臭氧投量增加而增加,但去除率并不是随着臭氧投量的增加而相应的呈线性增加,说明臭氧氧化存在最佳臭氧投量.臭氧对UV254的去除效果很明显,较短时间内,就可以达到较好的去除效果.臭氧氧化在1 m in内对DOC去除效果明显,之后随着臭氧质量浓度降低,反应速率下降,并且臭氧氧化使得一些POC转化为DOC,从而去除率呈现为负值.臭氧氧化难以去除氨氮,较易将有机氮氧化生成氨,从而使得氧化后水中的氨氮有所升高,氨氮去除率呈现负值.臭氧对松花江水中有机物的氧化不完全,对氨氮去除效果不佳,而且生成的中间产物会阻止臭氧进一步氧化,因此臭氧氧化后再接生物处理效果会更好.
文摘The kinds of organic pollutant of different sampling periods in Songhua River’s water have been analyzed by GC/MS method. The preparation courses of the sample and determination’s condition were discussed. The results indicate that in three sampling period, the kinds of organic pollutant are the most in medium water period, the least in low water period. the kind of polycyclic aromatic hydrocarbons was influenced most by sampling period, the kind of substitute benzenes went next, The kind of phthalate esters slightly. the experiment results are significant to protect environment and people’s health.