Biodegradation of 1,4-Dioxane Using Trickling Filter

Zenker, Matthew J.; Borden, Robert C.; Barlaz, Morton A.

doi:10.1061/(asce)0733-9372(2004)130:9(926)

Cited by 38 publications

(33 citation statements)

References 13 publications

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“…1,4-dioxane was considered non-biodegradable by microorganisms [3][4][5], although some recent investigations have shown its biodegradation under certain conditions; Han4 as well as on the dominant oxidation mechanism (OH• vs. O3 production) [14,24,28]. As high initial pH was reported beneficial in the O3/H2O2 oxidation of 1,4-dioxane [25], it is of great interest to study the possible improvement of the O3 process when adequate pH conditions are maintained throughout the experiment.…”

mentioning

confidence: 99%

Removal of 1,4-dioxane from industrial wastewaters: Routes of decomposition under different operational conditions to determine the ozone oxidation capacity

Barndõk

Cortijo

Hermosilla

et al. 2014

Journal of Hazardous Materials

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This paper denotes the importance of operational parameters for the feasibility of ozone (O3) oxidation for the treatment of wastewaters containing 1,4-dioxane. Results show that O3 process, which has formerly been considered insufficient as a sole treatment for such wastewaters, could be a viable treatment for the degradation of 1,4-dioxane at the adequate operation conditions. The treatment of both synthetic solution of 1,4-dioxane and industrial wastewaters, containing 1,4-dioxane and 2-methyl-1,3-dioxolane (MDO), showed that about 90% of chemical oxygen demand can be removed and almost a total removal of 1,4-dioxane and MDO is reached by O3 at optimal process conditions. Data from on-line Fourier transform infrared spectroscopy provides a good insight to its different decomposition routes that eventually determine the viability of degrading this toxic and hazardous compound from industrial waters. The degradation at pH>9 occurs faster through the formation of ethylene glycol as a primary intermediate; whereas the decomposition in acidic conditions (pH<5.7) consists in the formation and slower degradation of ethylene glycol diformate.

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confidence: 99%

Removal of 1,4-dioxane from industrial wastewaters: Routes of decomposition under different operational conditions to determine the ozone oxidation capacity

Barndõk

Cortijo

Hermosilla

et al. 2014

Journal of Hazardous Materials

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“…Recently, several bacterial pure cultures (Bernhardt and Diekmann, 1991;Parales et al, 1994;Alvarez-Cohen, 2005, 2006;Kim et al, 2009) and mixed cultures (Zenker et al, 2000(Zenker et al, , 2004Kim et al, 2006;Shen et al, 2008;Han et al, 2009) and fungi (Nakamiya et al, 2005) were shown to degrade dioxane, and among aerobic bacteria, monooxygenases were implicated in metabolic (growth supporting) as well as cometabolic (fortuitous transformation)…”

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confidence: 99%

1,4-Dioxane biodegradation at low temperatures in Arctic groundwater samples

Fiorenza

Chatham

et al. 2010

Water Research

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“…However, dioxane has been reported to be recalcitrant to biodegradation. It is poorly biodegraded probably because its stable ether bond requires 360 kJ/mol of energy for cleavage (Zenker et al 2004). To date, only a few aerobic microorganisms have exhibited dioxane-degrading capabilities.…”

Section: Introductionmentioning

confidence: 99%

“…Dioxane is recalcitrant, chemically stable, miscible with water, and has a low Henry's Law constant. Such properties make natural attenuation of dioxane in contaminated groundwater insignificant (Zenker et al 2004;Mahendra and Alvarez-Cohen 2006) and physical separation difficult (Zenker et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Biodegradation of 1,4-dioxane by a Flavobacterium

Sun

Ramsay

2010

Biodegradation

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A dioxane-degrading consortium was enriched from soil obtained from a contaminated groundwater plume. The enriched consortium did not use dioxane as the sole source of carbon and energy but co-metabolized dioxane in the presence of tetrahydrofuran (THF). THF and dioxane concentrations up to 1000 ppm were degraded by the enriched consortium in about 2 weeks with a longer lag phase observable at 1000 ppm. Three colonies from the enriched consortium were then obtained on agar plates containing basal salts and glucose as the carbon source. Only one of the three colonies was capable of dioxane degradation. Further enrichment of this colony in liquid media led to a pure culture that grew on glucose and co-metabolically degraded dioxane after THF degradation. The rate and extent of dioxane degradation of this isolate increased with increasing THF concentration. This isolate was subsequently identified as a Flavobacterium by 16S rDNA sequencing. Using polymerase chain reaction (PCR) and denaturing gradient gel electrophoresis (DGGE) analysis of microbial populations, Flavobacterium was determined to be the dominant species in the enriched consortium and was distinct from the two other colonies that did not degrade dioxane. This is the first report of a dioxane-degrading Flavobacterium which is phylogenetically distinct from any previously identified dioxane degrader.

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Biodegradation of 1,4-Dioxane Using Trickling Filter

Cited by 38 publications

References 13 publications

Removal of 1,4-dioxane from industrial wastewaters: Routes of decomposition under different operational conditions to determine the ozone oxidation capacity

Removal of 1,4-dioxane from industrial wastewaters: Routes of decomposition under different operational conditions to determine the ozone oxidation capacity

1,4-Dioxane biodegradation at low temperatures in Arctic groundwater samples

Biodegradation of 1,4-dioxane by a Flavobacterium

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