摘要
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。
Both ultraviolet/hydrogen peroxide （ UV/H2O2 ） and ultraviolet/persulfate （UV/PS） are effective in the degradation of 2-methylisoborneol （2-MIB） and geosmin （GSM） in pure water. The degradation efficiency of UV/PS was better than that of UV/H2O2. Both bicarbonate and natural organic matter （NOM） could inhibit the removal of 2-MIB and GSM significantly. However, the inhibition effect on UV/PS system was more significant than that on UV/H2O2 system, resulting in a fact that UV/H2O2 showed higher removal efficiencies of 2-MIB and GSM than UV/PS system in the presence of bicarbonate or NOM. Due to the high contents of bicarbonate and NOM in real water, UV/H2O2 was more effective than UV/PS in the degradation of 2-MIB and GSM contained in Songhua River water. This study suggested that UV/H2O2 might be a better choice than UV/PS when treating 2-MIB and GSM in real water.
出处
《中国给水排水》
CAS
CSCD
北大核心
2016年第19期6-9,共4页
China Water & Wastewater
基金
国家自然科学基金资助项目(5157081665)
