Biodegradation Kinetics of 1,4-Dioxane in Chlorinated Solvent Mixtures
نویسندگان
چکیده
منابع مشابه
The 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 کاملKinetics of 1,4-dioxane biodegradation by monooxygenase-expressing bacteria.
1,4-Dioxane is a probable human carcinogen, and an important emerging water contaminant. In this study, the biodegradation of dioxane by 20 bacterial isolates was evaluated, and 13 were found to be capable of transforming dioxane. Dioxane served as a growth substrate for Pseudonocardia dioxanivorans CB1190 and Pseudonocardia benzenivorans B5, with yields of 0.09 g protein g dioxane(-1) and 0.03...
متن کاملMultisubstrate biodegradation kinetics of naphthalene, phenanthrene, and pyrene mixtures.
Biodegradation kinetics of naphthalene, phenanthrene and pyrene were studied in sole-substrate systems, and in binary and ternary mixtures to examine substrate interactions. The experiments were conducted in aerobic batch aqueous systems inoculated with a mixed culture that had been isolated from soils contaminated with polycyclic aromatic hydrocarbons (PAHs). Monod kinetic parameters and yield...
متن کاملBiodegradation of Chlorinated s-Triazines
The catabolism of chlorinated s-triazines, e.g., herbicides, is incompletely understood. The first demonstration of their quantitative microbial degradation is the fungal dealkylation of simazine (CEET [for meaning of abbreviations throughout, see Table 1, footnote a]) to two major products, deethylsimazine (CEAT; two-thirds of total) and an unidentified s-triazine (one-third of total) (11, 12)...
متن کاملBiodegradation of chlorinated aliphatic hydrocarbon mixtures in a single-pass packed-bed reactor.
Aliphatic chlorinated compounds, such as trichloroethylene (TCE) and tetrachloroethylene (PCE), are major contaminants of ground water. A single-pass packed-bed bioreactor was utilized to study the biodegradation of organic waste mixtures consisting of PCE, TCE, and other short-chain chlorinated organics. The bioreactor consisted of two 1960-mL glass columns joined in a series. One column was p...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Environmental Science & Technology
سال: 2016
ISSN: 0013-936X,1520-5851
DOI: 10.1021/acs.est.6b02797