Removal of atmospheric CCI4 under bulk aerobic conditions in groundwater and soils

Article Abstract:

Groundwater with a maximum age of 50 years was recovered via the Upper Glacial and Magothy Aquifiers beneath the Brookhaven National Laboratory of Long Island, NY. This conclusion is based on the use of definite amounts of relatively nonreactive and arthropogenic halocarbon tracers. However, it was shown that water dating earlier than 50 years would not have exhibited perceptible halocarbon levels. The significant scatter shown in the scatter plot opf groundwater age is suggestive of real age versus depth variability inside the aquifier.

All Other Basic Organic Chemical Manufacturing, Basic Chemical Manufacturing, Organic Chemicals, Halogenated Hydrocarbons, Analysis, Halocarbons, Water, Underground, Groundwater, Organic compounds, Soils, Soil analysis, Chlorine compounds

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Evaporation phenomena during thermal decontamination of soils

Article Abstract:

A study aimed at determining the effects of thermal treatment conditions on removal of a low volatility aromatic contaminant from soil is presented. The experiment utilized shallow beds (10 mg) of a clay soil which were pretreated with 8 plus or minus 0.4 wt% pyrene and heated in a thermogravimetric analysis at 5, 25, or 50 degrees Celsius/min or isothermally. The results of the experiment indicate that most of pyrene can be removed from the contaminated soil at temperatures between 200 and 300 degrees Celsius.

Cyclic Crude and Intermediate Manufacturing, Aromatic Alcohols, Aromatic compounds

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Bacteria spore removes dissolved metals

Article Abstract:

Scientists from the Scripps Institutio of Oceanography have discovered the mechanism by which spores of a particular marine bacteria removes dissolved metals from seawater. The scientist are hopeful that the marine bacteria, currently known as Bacillus sp. strain SG-1, could someday help in water decontamination efforts. The bacterial spores demonstrated the ability to remove as much as 90% of toxic metals dissolved in contaminated seawater.

Research and Development in the Physical, Engineering, and Life Sciences, Water Pollution Control R&D, Spores (Bacteria), Bacterial spores, Marine pollution, Water pollution research, Scripps Institution of Oceanography

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