Performance robustness of the UASB reactors treating saline phenolic wastewater and analysis of microbial community structure

Wang, Wei; Wu, Benteng; Pan, Shanglei; Yang, K. H.; Hu, Zhenhu; Yuan, Shuai

doi:10.1016/j.jhazmat.2017.02.025

Cited by 103 publications

(29 citation statements)

References 41 publications

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“…Due to the shock loading of high-strength phenol, the UASB reactor was very difficult to acquire a strong performance robustness [26]. Previous literature demonstrated that 2000 mg L -1 of phenol caused a remarkable inhibitory effect on the phenol degraders and methanogens in the saline UASB reactor [24]. When anaerobic bacteria were exposed to high concentration of phenol precipitately, the conversion of phenol to methane was blocked, resulting in the accumulation of phenol in the effluent [24].…”

Section: Effects Of Srts On Smp and Eps Of Sludgementioning

confidence: 99%

Effects of Sludge Retention Time on the Performance of Anaerobic Ceramic Membrane Bioreactor Treating High-Strength Phenol Wastewater

Yang

Yuan

et al. 2020

Archaea

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Anaerobic ceramic membrane bioreactor (AnCMBR) is an attractive alternative for the treatment of high-strength phenol wastewater, but the effects of sludge retention time (SRT) on the performance and membrane fouling are still unclear. The results indicated that the AnCMBR was successfully employed to treat high-strength wastewater containing 5 g phenol L-1. The removal efficiencies of phenol and chemical oxygen demand (COD) reached over 99.5% and 99%, respectively, with long SRT and short SRT. SRT had no obvious effect on the performance of the AnCMBR treating high-strength phenol wastewater with long time operation. The strong performance robustness of AnCMBR benefited from the enrichment of hydrogenotrophic methanogens and syntrophic phenol-degrading bacteria. However, the decline of SRT led to a more severe membrane fouling in the AnCMBR, which was caused by the small size of sludge flocs and high concentration of protein in the biopolymers. Therefore, this work presented a comprehensive insight to the feasibility and robustness of the AnCMBR for treating high-strength phenol wastewater.

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Section: Effects Of Srts On Smp and Eps Of Sludgementioning

confidence: 99%

Effects of Sludge Retention Time on the Performance of Anaerobic Ceramic Membrane Bioreactor Treating High-Strength Phenol Wastewater

Yang

Yuan

et al. 2020

Archaea

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“…Recently, anaerobic biotechnology has been widely used in the treatment of phenolic wastewater due to its characteristics of low sludge yield, good tolerance and decomposing ability to phenols [6][7][8]. The strict environmental requirement is one of the main limiting factors for its industrial application.…”

Section: Introductionmentioning

confidence: 99%

“…The strict environmental requirement is one of the main limiting factors for its industrial application. There are a lot of reasons such as temperature changes, impact of phenols or other toxic substances causing operational failure in the anaerobic reactor [8,9]. For the industrial installations, the impact of toxic substances is the most frequent problem.…”

Section: Introductionmentioning

confidence: 99%

Potential impact of methyl isobutyl ketone (MIBK) on phenols degradation in an UASB reactor and its degradation properties

Wang

Yang

Sierra

et al. 2017

Journal of Hazardous Materials

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Methyl isobutyl ketone (MIBK) as a solvent is extensively used for the phenols extraction from the wastewater, so it is unavoidable to expose in the effluent due to the solubility and leakage problem. The present study evaluated the impact of MIBK on phenols degradation in an UASB reactor and analyzed its degradation properties. The results indicated that the continuous dosing (0.1gL) and impact (10gL) of MIBK had limited effect on phenols removal (1-2% reduction) in the UASB reactor, but the specific methanogenic activity (SMA) values of sludge decreased by 45-75% after MIBK exposure. Anaerobic degradation rate of MIBK fitted well to a pseudo-first-order kinetic equation with respect to the initial concentration of 35mgL (k=0.0115h, R=0.9664). Furthermore, the relative methane generation rate constants of MIBK were 0.00816, 0.00613, 0.00273, and 0.00207d at the initial concentrations of 0.1, 0.5, 5, and 10gL, respectively. MIBK showed higher inhibitory effect on the methanogenesis than on phenols degradation. This study pointed out that the industrial installations should consider the influence of solvent on anaerobic treatment of phenolic wastewater.

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“…The starting granular sludge came from a fullscale internal circulation (IC) reactor treating brewery wastewater. The degradation and methane yield decreasedwith temperature decreasing below 20 C. Psychrophilic conditions were not conducive to 2-propanol anaerobic treatment Wang, Wu et al (2017). reported that, when treating phenolic wastewater using a UASB, the treatment performance was weakened at 1000 mg/L phenol and 10 g/L Na + , and the reactor failed at 2000 mg/L phenol and 20 g/L Na + .…”

mentioning

confidence: 99%

“…García-Mancha et al (2017) used an anaerobic expanded granular sludge bed reactor to treat hardly biodegradable pesticides-bearing wastewater under mesophilic (35 C) and thermophilic (55 C) conditions, andreported that around 96% of pesticides identified in raw wastewater were not detected in both mesophilic and thermophilic effluents. However, the increase of temperature improved the biomass activity and the production of methane by 35% Wang, Wu et al (2017). reported that high concentrations of ammonia at 1000 mg-N/L inhibited the biodegradation of phenols in an UASB reactor when treating coal gasification wastewater.Therefore, pretreating this wastewater through struvite precipitation recovered ammonia and reduced ammonia Water Environment Research, Volume 90, Number 10 -Copyright © 2018 Water Environment Federation toxicity on the UASB reactor Khan et al (2017).…”

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confidence: 99%

Hazardous Wastes Treatment Technologies

Wang

et al. 2018

Water Environment Research

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Performance robustness of the UASB reactors treating saline phenolic wastewater and analysis of microbial community structure

Cited by 103 publications

References 41 publications

Effects of Sludge Retention Time on the Performance of Anaerobic Ceramic Membrane Bioreactor Treating High-Strength Phenol Wastewater

Effects of Sludge Retention Time on the Performance of Anaerobic Ceramic Membrane Bioreactor Treating High-Strength Phenol Wastewater

Potential impact of methyl isobutyl ketone (MIBK) on phenols degradation in an UASB reactor and its degradation properties

Hazardous Wastes Treatment Technologies

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