pH Effect on Nitrosamine Precursor Removal by Activated Carbon Adsorption

被引：0

作者：

Chen, Chao ^{[1
,2
,3
]}

Hanigan, David ^{[4
]}

Liao, Xiaobin ^{[1
,5
]}

Wang, Jun ^{[1
]}

Zhang, Xiaojian ^{[1
]}

Suffet, I. H. ^{[3
]}

Krasner, Stuart W. ^{[6
]}

Westerhoff, Paul ^{[4
]}

机构：

[1] Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China

[2] State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China

[3] Univ Calif Los Angeles, Sch Publ Hlth, Dept Environm Hlth Sci, Los Angeles, CA 90095 USA

[4] Arizona State Univ, Sch Sustainable Engn & Built Environm, Tempe, AZ 85287 USA

[5] Huaqiao Univ, Coll Civil Engn, Xiamen 361021, Peoples R China

[6] Metropolitan Water Dist Southern Calif, La Verne, CA 91750 USA

来源：

RECENT ADVANCES IN DISINFECTION BY-PRODUCTS | 2015年 / 1190卷

关键词：

RAPID ASSESSMENT METHOD; DRINKING-WATER; POLARITY;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Powdered activated carbon (PAC) adsorbs certain nitrosamine (NA) precursors from water. We hypothesized that varying pH levels influence the extent of NA precursor removal. For two model NA precursors (ranitidine and chloropheniramine) and ambient NA precursors present in a treated wastewater (WW), removal increased on PAC at higher pH. However, the removal of NDMA formation potential (FP) from an aquaculture-impacted lake water by PAC declined at higher pH. The PAC adsorption results agreed with experimental findings from the Polarity Rapid Assessment Method (PRAM) for characterizing WW-derived NDMA precursors. The differences in NDMA precursor removal by PAC adsorption at varying pH between different waters was likely due to the different charactersitcs of NDMA precursors in the two water samples.

引用

页码：173 / 185

页数：13

共 14 条

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