摘要
为了分析预臭氧-常规处理工艺对UV254、2-MIB的去除效果及两者相关性,采用国家标准监测法,于7—9月对太湖水源水及中试系统中预臭氧-常规处理工艺各阶段出水进行取样监测分析。结果表明：与一般常规处理工艺相比较,预臭氧-常规处理工艺对2-MIB的去除率提高75%左右,预臭氧2-MIB的去除率占整个工艺总去除率的90%左右,臭氧氧化作用能够有效地去除2-MIB;太湖水源水pH为7.9-8.10,温度为24-27℃,臭氧氧化后UV254降低20%-30%。且工艺对二甲基异莰醇的去除效果与水体中UV254的浓度呈负相关性。当水体中UV254浓度由0.9 mg/L上升到1.3 mg/L时,预臭氧-常规处理工艺对2-MIB的去除率下降10%左右。
In order to analyze the removing of UV_（254）、2-MIB by ozonation-conventional treatment process and the correlation between the two pollutant indicators in July,August and September,we collected and monitored the water samples from the source water（ from Taihu Lake）,and the effluent of the each sector of the combined process. The results showed that：compared with conventional treatment process,the removal efficiency of the combined treatment for 2-MIB increased by about75%; the contribution of the ozonation pretreatment on 2-MIB accounted for 90% of the whole process; the p H value of Taihu Lake water was 7. 9 - 8. 10,and its average temperature was 24 - 27 ℃,UV254 in source water reduced by 20% - 30% after ozonation pretreatment; the removal rate of ozonation-conventional treatment process for 2-MIB and UV254 showed a negative correlation. With UV254 increasing from 0. 9 to 1. 3 in source water,the removal rate of 2-MIB by ozonation-conventional treatment process decreased by about 10%.
出处
《环境工程》
CAS
CSCD
北大核心
2016年第5期50-53,64,共5页
Environmental Engineering
基金
国家自然科学基金(51109153)
国家"十二五"重大水专项"太湖流域饮用水安全保障计划"项目(2012ZX07403_001_003)
江苏省普通高校专业学位研究生科研实践计划项目(SKLX-0575)
