论文部分内容阅读
紫外/过氧化氢(UV/H_2O_2)和紫外/过硫酸盐(UV/PS)均可有效降解纯水体系中的2-甲基异莰醇(2-MIB)和土臭素(GSM),且UV/PS的降解效果更优。重碳酸根和天然有机物均可以显著抑制UV/H_2O_2和UV/PS降解2-MIB和GSM的效能,但对UV/PS体系的抑制作用显著强于其对UV/H_2O_2体系的抑制作用,结果导致UV/H_2O_2在重碳酸根或者天然有机物存在时降解2-MIB和GSM的效果优于UV/PS体系。由于实际水体中通常含有较高浓度的重碳酸根和天然有机物,因此UV/H_2O_2降解松花江水体中2-MIB和GSM的效果优于UV/PS体系。通过此研究可知UV/H_2O_2相对于UV/PS更适于实际水体中2-MIB和GSM的去除。
UV-H 2 O 2 and UV / PS can effectively degrade 2-methylisothiol (2-MIB) and geosmin (GSM) in pure water system, and UV / PS degradation better. Both bicarbonate and natural organic matter could significantly inhibit the degradation of 2-MIB and GSM by UV / H 2 O 2 and UV / PS, but their inhibitory effects on UV / PS system were significantly stronger than those on UV / H 2 O 2 system. As a result, UV / H 2 O 2 is better than UV / PS in degrading 2-MIB and GSM in the presence of bicarbonate or natural organic compounds. UV / H 2 O 2 is more effective than UV / H 2 O 2 in degrading 2-MIB and GSM in the Songhua River water because actual water usually contains higher concentrations of bicarbonate and natural organic matter. From this study, UV / H 2 O 2 is better than UV / PS for the removal of 2-MIB and GSM from the actual water.