Occurrence and fate of organic contaminants during onsite wastewater treatment

被引:110
作者
Conn, Kathleen E.
Barber, Larry B.
Brown, Gregory K.
Siegrist, Robert L.
机构
[1] US Geol Survey, Boulder, CO 80303 USA
[2] Colorado Sch Mines, Environm Sci & Engn Div, Golden, CO 80401 USA
关键词
D O I
10.1021/es0605117
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Onsite wastewater treatment systems serve approximately 25% of the U. S. population. However, little is known regarding the occurrence and fate of organic wastewater contaminants (OWCs), including endocrine disrupting compounds, during onsite treatment. A range of OWCs including surfactant metabolites, steroids, stimulants, metalchelating agents, disinfectants, antimicrobial agents, and pharmaceutical compounds was quantified in wastewater from 30 onsite treatment systems in Summit and Jefferson Counties, CO. The onsite systems represent a range of residential and nonresidential sources. Eighty eight percent of the 24 target compounds were detected in one or more samples, and several compounds were detected in every wastewater sampled. The wastewater matrices were complex and showed unique differences between source types due to differences in water and consumer product use. Nonresidential sources generally had more OWCs at higher concentrations than residential sources. Additional aerobic biofilter- based treatment beyond the traditional anaerobic tank-based treatment enhanced removal for many OWCs. Removal mechanisms included volatilization, biotransformation, and sorption with efficiencies from < 1% to > 99% depending on treatment type and physicochemical properties of the compound. Even with high removal rates during confined unit onsite treatment, OWCs are discharged to soil dispersal units at loadings up to 20 mg/m(2)/d, emphasizing the importance of understanding removal mechanisms and efficiencies in onsite treatment systems that discharge to the soil and water environments.
引用
收藏
页码:7358 / 7366
页数:9
相关论文
共 41 条
[1]   BEHAVIOR OF ALKYLPHENOL POLYETHOXYLATE SURFACTANTS IN THE AQUATIC ENVIRONMENT .1. OCCURRENCE AND TRANSFORMATION IN SEWAGE-TREATMENT [J].
AHEL, M ;
GIGER, W ;
KOCH, M .
WATER RESEARCH, 1994, 28 (05) :1131-1142
[2]   BEHAVIOR OF NTA AND EDTA IN BIOLOGICAL WASTE-WATER TREATMENT [J].
ALDER, AC ;
SIEGRIST, H ;
GUJER, W ;
GIGER, W .
WATER RESEARCH, 1990, 24 (06) :733-742
[3]  
[Anonymous], STAND METH EX WAT WA
[4]   DICHLOROBENZENE IN GROUND-WATER - EVIDENCE FOR LONG-TERM PERSISTENCE [J].
BARBER, LB .
GROUND WATER, 1988, 26 (06) :696-702
[5]   Chemical loading into surface water along a hydrological, biogeochemical, and land use gradient: A holistic watershed approach [J].
Barber, LB ;
Murphy, SF ;
Verplanck, PL ;
Sandstrom, MW ;
Taylor, HE ;
Furlong, ET .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2006, 40 (02) :475-486
[6]  
Barber LB, 2000, ACS SYM SER, V747, P97
[7]   LONG-TERM FATE OF ORGANIC MICROPOLLUTANTS IN SEWAGE-CONTAMINATED GROUNDWATER [J].
BARBER, LB ;
THURMAN, EM ;
SCHROEDER, MP ;
LEBLANC, DR .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1988, 22 (02) :205-211
[8]   Accurate prediction of the response of freshwater fish to a mixture of estrogenic chemicals [J].
Brian, JV ;
Harris, CA ;
Scholze, M ;
Backhaus, T ;
Booy, P ;
Lamoree, M ;
Pojana, G ;
Jonkers, N ;
Runnalls, T ;
Bonfà, A ;
Marcomini, A ;
Sumpter, JP .
ENVIRONMENTAL HEALTH PERSPECTIVES, 2005, 113 (06) :721-728
[9]   Pressurized liquid extraction using water/isopropanol coupled with solid-phase extraction cleanup for industrial and anthropogenic waste-indicator compounds in sediment [J].
Burkhardt, MR ;
ReVello, RC ;
Smith, SG ;
Zaugg, SD .
ANALYTICA CHIMICA ACTA, 2005, 534 (01) :89-100
[10]   Determination of pharmaceutical compounds in surface- and ground-water samples by solid-phase extraction and high-performance liquid chromatography-electrospray ionization mass spectrometry [J].
Cahill, JD ;
Furlong, ET ;
Burkhardt, MR ;
Kolpin, D ;
Anderson, LG .
JOURNAL OF CHROMATOGRAPHY A, 2004, 1041 (1-2) :171-180