Degradation of 4-chlorophenol in UASB reactor under methanogenic conditions

Majumder, Partha; Gupta, Sudhir Kumar

doi:10.1016/j.biortech.2007.08.062

Cited by 33 publications

(19 citation statements)

References 31 publications

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“…Previous studies revealed that the use of additional carbon sources as co-substrate can enhance the biodegradation of recalcitrant compounds, such as chlorophenols, insecticides, PAHs and azo dyes (Xiangchun et al, 2003;Shen et al, 2005;Rentz et al, 2005;Majumder and Gupta, 2008;Blánquez et al, 2008;Bajaj et al, 2008;Ahmad et al, 2010;Shawaqfeh, 2010). However, most of these studies focused on these recalcitrant compounds in synthetic wastewater, and only a few studies have explored the effects of additional carbon sources on complex component degradation in actual integrated industrial wastewater.…”

Section: Introductionmentioning

confidence: 99%

The stimulating effects of the addition of glucose on denitrification and removal of recalcitrant organic compounds

Wang

2014

Braz. J. Chem. Eng.

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-A laboratory scale aerobic oxidation ditch combined with an anoxic reactor was conducted to treat wastewater from a chemical industrial park in Tianjin, China. The wastewater exhibited a low biodegradability, and the results of gas chromatography mass spectrometry (GC-MS) analysis showed that some recalcitrant organic components are present in the wastewater. Ammonia nitrogen (NH 4 + -N) removal efficiency of over 90% was obtained. However, the removal efficiencies of total nitrogen (TN) and chemical oxygen demand (COD) were below 16% and 15%, respectively. The addition of glucose to the anoxic reactor in the system increased the removal efficiencies of TN and COD to approximately 72% and 25.57%, respectively. Results of mass balance indicate that about 60% of the external carbon was consumed as electron donor for denitrification, while 40% was consumed as a substrate for co-metabolism. The optimal dose of added glucose was also investigated, which was determined at 0.35 to 1.20 (COD glucose :COD original ).

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Section: Introductionmentioning

confidence: 99%

The stimulating effects of the addition of glucose on denitrification and removal of recalcitrant organic compounds

Wang

2014

Braz. J. Chem. Eng.

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“…Heavy metals [6,7] ammonia [8,9], sulfides [10] and chlorophenols [11] were proved to have the negative effect at process efficacy.…”

Section: Introductionmentioning

confidence: 99%

The influence of petroleum products on the methane fermentation process

Choromanski

Karwowska

Wojtkowska

2016

Journal of Hazardous Materials

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“…The upflow anaerobic sludge blanket (UASB) reactor, as the most robust anaerobic reactor for sewage treatment, has been applied to treat organic pollutants in industrial effluent (Atuanya and Chakrabarti 2003;Liang et al 2007;Majumder and Gupta 2008). Trichloroethylene (TCE), a halogenated hydrocarbon solvent, is mainly used as a metal degreasing agent, and it is also an intermediate in the production of fluorochemicals and polyvinyl chloride (Watson et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Analysis of trichloroethylene removal and bacterial community function based on pH-adjusted in an upflow anaerobic sludge blanket reactor

Zhang

et al. 2015

Appl Microbiol Biotechnol

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The study reported the upflow anaerobic sludge blanket (UASB) reactor performance in treating wastewater containing trichloroethylene (TCE) and characterized variations of bacteria composition and structure by changing the pH from 6.0 to 8.0. A slightly acidic environment (pH < 7.0) had a greater impact on the TCE removal. Illumina pyrosequencing was applied to investigate the bacterial community changes in response to pH shifts. The results demonstrated that pH greatly influenced the dominance and presence of specific populations. The potential TCE degradation pathway in the UASB reactor was proposed. Importantly, the genus Dehalobacter which was capable of reductively dechlorinating TCE was detected, and it was not found at pH of 6.0, which presumably is the reason why the removal efficiency of TCE was the lowest (80.73 %). Through Pearson correlation analyses, the relative abundance of Dehalobacter positively correlated with TCE removal efficiency (R = 0.912). However, the relative abundance of Lactococcus negatively correlated with TCE removal efficiency according to the results from Pearson correlation analyses and redundancy analysis (RDA).

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Degradation of 4-chlorophenol in UASB reactor under methanogenic conditions

Cited by 33 publications

References 31 publications

The stimulating effects of the addition of glucose on denitrification and removal of recalcitrant organic compounds

The stimulating effects of the addition of glucose on denitrification and removal of recalcitrant organic compounds

The influence of petroleum products on the methane fermentation process

Analysis of trichloroethylene removal and bacterial community function based on pH-adjusted in an upflow anaerobic sludge blanket reactor

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