Water contaminated with

Although the process requires the addition of a phosphate donor, such as glycerol-2-phosphate, it may be a valuable tool for cleaning water contaminated with radionuchdes. An alternative mode of uranium precipitation is driven by sulfate-reducing bacteria such as Desulfovibrio desulfuricans which reduce U(VI) to insoluble U(IV). When combined with bicarbonate extraction of contaminated soil, this may provide an effective treatment for removing uranium from contaminated soil (85). 

Environment Internal Water contaminated with sulfur compounds, 70-90°F (21-32 C)... 

Important intermedia transfer mechanisms that must be considered where significant surface water contamination is expected include transfers to ground water where hydrogeology of the area indicates significant surface water-ground water exchange, transfers to biota where waters contaminated with lipophilic substances support edible biotic species, and transfer... 

Glaze, W. H. and Kang, J. W, "Advaneed Oxidation Proeess for Treating Ground Water Contaminated with TCE and PCE Laboratory Studies Jour AWWA, vol. 80, no. 5, pp. 57-63, May 1988. 

Description of granular activated carbon (GAC) adsorption (liquid phase) remediation technology used to clean up pumped ground water contaminated with volatile/semi-volatile organics and PCBs. http //erb. nfesc. navy. mil/restoration/te. 

The data presented above suggest that methyl parathion would be absorbed by humans following ingestion of food and drinking water contaminated with methyl parathion. However, no data are available on the rate and extent of absorption in humans. 

Diffuse fascitis with eosinophilia was reported in a woman who had used well water contaminated with trichloroethylene (14 mg/L) for 6 years (Waller et al. 1994). 

Reproductive Toxicity. Increased miscarriages were reported in one study of nurse-anesthetists exposed to trichloroethylene and other solvents (Corbett et al. 1974). A retrospective case-control study has should an approximate 3-fold increase in spontaneous abortion in women exposed to trichloroethylene and other solvents (Windham et al. 1991). Significant effects on sperm parameters were not observed in men occupationally exposed to trichloroethylene (Rasmussen et al. 1988). Adverse reproductive effects were not noted in humans that ingested water contaminated with trichloroethylene and other solvents (Byers et al. 

As a result of volatilization, significantly elevated indoor air levels of trichloroethylene can occur in homes that use water supplies contaminated with trichloroethylene (Andelman 1985a). The transfer of trichloroethylene from shower water to air in one study had a mean efficiency of 61% which was independent of water temperature (McKone and Knezovich 1991). The study authors concluded that showering for 10 minutes in water contaminated with trichloroethylene could result in a daily exposure by inhalation comparable to that expected by drinking contaminated tap water. Another study using a model shower system found that, in addition to shower spray, shower water collecting around the drain could be an important source of volatilized trichloroethylene, and the fraction volatilized could be affected by spray drop size and flow rate (Giardino et al. 1992). 

Morgan P, RJ Watkinson (1989b) Microbiological methods for the cleanup of soil and ground water contaminated with halogenated organic compounds. FEMS Microbiol Revs 63 277-300. 

Well water contaminated with fertilizer (nitrates)... 

Diisopropyl methylphosphonate may enter your body after drinking water contaminated with it or it may enter through your skin. You could be exposed to diisopropyl methylphosphonate if you drink water that contains the chemical near the RMA. Exposure of the general population to diisopropyl methylphosphonate is not likely to occur. Studies in animals show that diisopropyl methylphosphonate enters the bloodstream relatively quickly following oral exposure. Animal... 

Types of Technologies for Treatment of Soil, Groundwater, and Drinking Water Contaminated with Oxygenates... 

Once water contaminated with MTBE or other oxygenates has been extracted, the relative tendency to remain in the aqueous phase can make aboveground treatment more complicated than the treatment of other contaminants, such as BTEX. Key factors that may affect the cost and performance of aboveground treatment include... 

Fig. 9.3 Schematic diagram of purification of underground water contaminated with arsenic...

The first illustrative example deals with the minimisation of wastewater in an operation that involves three processing units, with each unit producing a distinct product. Wastewater produced from units 1 and 2 each contain single, but different, contaminants. Wastewater from unit 1 contains contaminant Cl and wastewater from unit 2 contains contaminant C2. Unit 3 produces wastewater that contains three contaminants, namely, contaminants Cl, C2 and C3. Unit 1 can only receive water contaminated with contaminant Cl. Similarly, unit 2 can only receive water contaminated with contaminant C2. 

The second illustrative example deals with wastewater minimisation in an operation involving four processes. Wastewater produced from processes 1 and 2 contain the same single contaminant Cl, while wastewater produced from processes 3 and 4 contain multiple contaminants, namely, contaminants Cl, C2 and C3. Processes 1 and 2 cannot receive water contaminated with multiple contaminants, while processes 3 and 4 can receive any type of wastewater. Table 7.3 provides the required maximum inlet and outlet concentrations for each process as well as the mass load of each contaminant in each process. 

Fig. 32.2. Remediation of the aquifer shown in Figure 32.1, as the simulation continues. After water contaminated with Pb++ displaces half of the aquifer s pore volume, clean water is flushed through the aquifer until a total of 30 pore volumes have been replaced. Flushing attenuates Pb++ concentration in the groundwater (top), so that it gradually approaches drinking water standards (MCL, or Maximum Contamination Level), and slowly displaces most of the sorbed metal from the Fe(OH)3 surface, primarily from the weak surface sites.

A storage tank contains water contaminated with a small quantity of a soluble hazardous waste material. The tank is 3 m in diameter and 6 m high. At the current time the liquid height is within 1 m of the top of the tank. 

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