Effect of a constructed wetland on disinfection byproducts: Removal processes and production of precursors

被引：57

作者：

Rostad, CE

Martin, BS

Barber, LB

Leenheer, JA

Daniel, SR

机构：

[1] US Geol Survey, Denver Fed Ctr, Lakewood, CO 80225 USA

[2] Colorado Sch Mines, Dept Chem Geochem, Golden, CO 80401 USA

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2000年 / 34卷 / 13期

关键词：

D O I：

10.1021/es9900407

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The fate of halogenated disinfection byproducts (DBPs) in treatment wetlands and the changes in the DBP formation potential as wastewater treatment plant (WWTP)-derived water moves th rough the wetlands were investigated. Wetland inlet and outlet samples were analyzed for total organic halide (TOX), trihalomethanes (THM), haloacetic acids (HAA), dissolved organic carbon (DOC), and UV absorbance. Removal of DBPs by the wetland ranged from 13 to 55% for TOX, from 78 to 97% for THM, and from 67 to 96% for HAA. The 24-h end 7-day nonpurgeable total organic halide (NPTOX), THM, and HAA formation potential yields were determined at the inlet and outlet of these wetlands. The effect of wetlands an the production of DBP precursors and their DBP-formation potential yield from wastewater was dramatic. The wetlands increased DBP yield up to a factor of almost 30. Specific changes in the DOC precursors were identified using C-13 NMR spectroscopy.

引用

页码：2703 / 2710

页数：8

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