Sewage-contaminated groundwater

Simulation of phosphate transport in sewage-contaminated groundwater, Cape Cod, Massachusetts Applied Geochemistry, v. 11, p. 317-324. 

Chemical analysis for specific redox couples is especially useful in studies of groundwaters contaminated by waste disposal, where redox gradients are often steep, and the fate of redox-sensitive contaminants may be rate dependent or otherwise unpredictable. In such a study of sewage-contaminated groundwaters, Kent et al. (1994) found that reduction of O2, Cr(VI), and Se(VI) did not occur, although it was thermodynamically favored. They concluded that the disequilbrium resulted from unfavorable microbial conditions and heterogeneity of groundwater flow. 

Barber LB, Thurman EM, Schroeder MP, et al. 1988. Long-term fate of organic micro pollutants in sewage-contaminated groundwater. Environ Sci Technol 22 205-211. 

Di-n-butyl phthalate 0.45 to2.38 pg/L Near landfill, sewage contaminated groundwater (USA) (5)... 

Another common source of groundwater pollution is sewage, which includes drainage from septic tanks and inadequate or broken sewer lines. Animal sewage, especially from factory-style animal farms, is also a source of groundwater (and river water) pollution. Sewage water contains bacteria, which if untreated can cause waterborne diseases such as typhoid, cholera, and infectious hepatitis. If the contaminated groundwater travels relatively quickly... 

Vengosh A. and Pankratov I. (1998) Chloride/bromide and chloride fluoride ratios of domestic sewage effluents and associated contaminated groundwater. Ground Water 36, 815-824. 

Direct infiltration of (treated) wastewater through sand beds and infiltration of sewage water from laundry ponds or septic systems are among the major contamination sources of surfactants into subsurface and groundwaters. Most studies published on this issue were released by research groups from the USA where these treatment techniques have found some use (Table 6.7.3). 

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