生态与农村环境学报2017，Vol.33Issue(1)：84-90,7.DOI:10.11934/j.issn.1673-4831.2017.01.012
臭氧氧化-苦草深度处理对猪场尾水中有机物的去除效果
Efficiency of Ozonation Combined With Cultivation of Vallisneria natans Removing Organic Substances in Piggery Wastewater
摘要
Abstract
Livestock wastewater falls into the category of wastewater with a high concentration of organic pollutants and hence poses a threat to the environment when disposed inappropriately.Ozonation is known as an attractive alternative to treat the wastewater.An experiment was carried out to explore effect of ozonation on concentration and composition of the organic pollutants relative to concentration of ozone and effect of the treatment of ozonation combined with cultivation of Vallisneria natans removing organic pollutants from livestock wastewater.Results show that when exposed to ozone at a rate of 10(AO1),30(AO2) and 50 mg · L-1(AO3) for 30 min,piggery wastewater was lowered by 15.6％,17.6％ and 29.4％,respectively,in UV254 and by 12.2％,7.6％ and 22.0％,respectively,in UV436 and increased by 13.9％,16.7％ and 39.4％,respectively,in DOC/UV254.The treatment of ozonation in combination with cultivation of Vallisneria natans for 4 weeks had the wastewater lowered in by 8.5％-17.6％,16.2％-35.3％ and 12.9％-21.8％ in DOC content,UV254 and UV436,respectively.Obviously ozonation could trigger transformation of the semi volatile organic compounds in the piggery wastewater.All the findings of this experiment indicate that when properly applied,this treatment method can be used to pretreat livestock wastewater before it is discharged,and to promote biodegradability and degrading rate of organic pollutants in the wastewater.关键词
臭氧氧化/深度处理/猪场处理尾水/苦草/有机物Key words
ozonation/advanced treatment/piggery tail water/Vallisneria natans/organics分类
资源环境引用本文复制引用
王俊力,陈桂发,刘福兴,宋祥甫,邹国燕..臭氧氧化-苦草深度处理对猪场尾水中有机物的去除效果[J].生态与农村环境学报,2017,33(1):84-90,7.基金项目
国家水体污染控制与治理科技重大专项(2012ZX07101-009) （2012ZX07101-009）
