Aquifers organic compounds

Stauffer TB, MacIntyre WG. 1986. Sorption of low-polarity organic compounds on oxide minerals and aquifer material. Environ Toxicol Chem 5 949-955. 

Nielsen PH, PL Bjerg, P Nielsen, P Smith, TH Christensen (1996) In situ and laboratory determined first-order degradation rate constants of specific organic compounds in an aerobic aquifer. Environ Sci Technol 30 31-37. 

The aquifer mineral constituents adsorbed most waste organic compounds, with the exception of formaldehyde. Adsorption of all organic acids except phthalic acid increased with a decrease in waste pH. 

Restoration of Contaminated Aquifers Petroleum Hydrocarbons and Organic Compounds... 

Restoration of contaminated aquifers petroleum hydrocarbons and organic compounds / by Stephen M. Testa, Duane L. Winegardner. — 2nd ed. p. cm. 

Diffusivity in water Molecular diffusion is defined as the transport of molecules (e.g., organic compounds) in either liquid or gaseous states. Typically, molecular diffusion is not a major factor under the majority of enviromnental conditions. However, in saturated aquifers with low pore water velocities (i.e., <0.002 cm/sec), diffusion can be a contributing factor in the transport of organic compounds. 

Kuster M, Diaz-Cruz S, Rosell M et al (2010) Fate of selected pesticides, estrogens, progestagens and volatile organic compounds during artificial aquifer recharge using surface waters. Chemosphere 79 880-886... 

Peterson MS, Lion LW, Shoemaker CA (1988) Influence of vapor phase sorption and diffusion on the fate of trichloroethylene in an unsaturated aquifer system. Environ Sci Technol 22 571-578 Petersen LW, Moldrup P, El-Farhan YH, Jacobsen OH, Yamaguchi Y, Rolston DE (1995) The effect of moisture and soil texture on the adsorption of organic vapors. J Environ Qual 24 752-759 Pignatello JJ (1989) Sorption dynamics of organic compounds in soils and sediments. In Sawhney BL, Brown K (eds) Reactions and movement of organic chemicals in soils. Soil Sci Soc Amer Spec Publ 22 45- 81... 

Laboratory studies indicate that aquathermolysis can be used to aid in the remediation of waste oils, chromium (Cr VI) and volatile organic compounds (VOCs) in contaminated soils and aquifers. Aquathermolysis is particularly useful in lowering the viscosity of oil and increasing its mobility to facilitate further treatment. Potential applications range from treating household and industrial refuse to destruction of chemical warfare agents. 

The use of vegetable oil for remediation of organic contaminants in an aquifer or unsaturated zone has been smdied at Pacific Northwest Laboratory. The oil strips organic compounds from the aqueous phase or particulate matter and is then pumped out for recovery. In addition, the oil can be used as a carbon source by microorganisms, hence encouraging in situ bioremediation. The technology has not proceeded beyond bench-scale testing and is not commercially available. 

CESAR was developed to address the problem of locating, characterizing, and removing dense non-aqueous-phase liquids (DNAPLs) from contaminated aquifer systems. The process is particularly suited to remediating groundwater contaminated with chlorinated solvents, such as trichloroethylene (TCE), tetrachloroethene (PCE), trichloroethane (TCE), and carbon tetrachloride (CCE). According to the vendor, CESAR can also be applied to sites contaminated with creosote, polychlorinated biphenyls (PCBs), Freon 113, volatile organic compounds (VOCs),... 

The two-zone plume interception treatment technology is designed to treat chlorinated and nonchlorinated organic compounds in groundwater using a sequence of anaerobic and aerobic conditions. The in situ technology has been applied to aquifers contaminated with benzene, toluene, ethylbenzene, and xylenes (BTEX) petroleum products hydrocarbons coal tar wastes and industrial feedstock chemicals. The technology does not treat metals. 

How does the presence of a completely miscible organic cosolvent (CMOS) affect the speciation of an organic compound in a given environment (e.g., in an aquifer) What are the most important parameters determining the effect of an organic cosolvent How can this effect be quantified ... 

P 9.4 Estimating the Retardation of Organic Compounds in an Aquifer from Breakthrough Data of Tracer Compounds... 

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