Chlorinated solvents
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Qualitative and quantitative analysis of chlorinated solvents using Raman spectroscopy and machine learning
The unambiguous identification and quantification of hazardous materials is of increasing importance in many sectors such as waste disposal, pharmaceutical manufacturing, and environmental protection. One particular problem in waste disposal and chemical manufacturing is the identification of solvents into chlorinated or non-chlorinated. In this work we have used Raman spectroscopy as the basis...
متن کاملThe impact of chlorinated solvent co-contaminants on the biodegradation kinetics of 1,4-dioxane.
1,4-Dioxane (dioxane), a probable human carcinogen, is used as a solvent stabilizer for 1,1,1-trichloroethane (TCA) and other chlorinated solvents. Consequently, TCA and its abiotic breakdown product 1,1-dichloroethene (DCE) are common co-contaminants of dioxane in groundwater. The aerobic degradation of dioxane by microorganisms has been demonstrated in laboratory studies, but the potential ef...
متن کاملAfrl-ml-ty-tr-1998-4603 Molecular and Cellular Fundamentals of Aerobic Cometabolism
Aerobic cometabolism recognizes that microorganisms can transform non-growth supporting substrates. The term "cometabolism" was first introduced over 30 years ago and has been redefined, criticized, and used widely ever since. In this review we have examined the cometabolism of chlorinated solvents. These transformations are initiated by monooxygenases or dioxygenases with relaxed substrate ran...
متن کاملSource Reduction of Chlorinated Solvents in Electronics Industry
Chlorinated solvents are a class of interrelated chemicals that have gone through major regulatory scrutiny in recent years. A number of chlorinated solvents are used in the electronics industry in printed circuit board (PCB) fabrication and assembly; semiconductor wafer fabrication and assembly; and critical cleaning applications. The growth in the electronics industry in the last few decades ...
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