Impact of SRT on the efficiency and microbial community of sequential anaerobic and aerobic membrane bioreactors for the treatment of textile industry wastewater

Yurtsever, Adem; Çalimlioglu, Beste; Şahinkaya, Erkan

doi:10.1016/j.cej.2016.11.156

Cited by 89 publications

(26 citation statements)

References 47 publications

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“…74,75 Desulfuromonas were identified in an AnMBR feed with synthetic textile industry wastewater. 78 Differences in primary effluent and membrane filtrate microbial communities showed that the AnMBR system selected for specific bacteria. This selection was presumably due to size exclusion, however, the sizes of the bacteria represented in the membrane feed and membrane filtrate are comparable based on published direct observation which are usually taken under ideal growth conditions.…”

Section: Enumeration Of 16s Rrna Genesmentioning

confidence: 99%

Removal of antibiotic resistance genes in an anaerobic membrane bioreactor treating primary clarifier effluent at 20 °C

Kappell

Kimbell

Seib

et al. 2018

Environ. Sci.: Water Res. Technol.

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Anaerobic membrane bioreactors (AnMBR) play a key role in future plans for sustainable wastewater treatment and resource recovery because they have no energy-intensive oxygen transfer requirements and can produce biomethane for renewable energy. Recent research results show that they can meet relatively stringent discharge limits with respect to BOD 5 and TSS when treating municipal wastewater primary effluent. Sustainable used water recovery plans should also consider removal of unregulated pollutants. Antibiotic resistance genes (ARGs) represent an important emerging contaminant due to public health concerns surrounding the spread of infections resistant to common antibiotics. Conventional activated sludge processes have demonstrated mixed results regarding ARG removal. The objective of this research was to determine the impact of an AnMBR on ARG removal when treating municipal primary clarifier effluent at 20°C. AnMBR treatment resulted in 3.3 to 3.6 log reduction of ARG and the horizontal gene transfer determinate, intI1, copies in filtrate. Membrane treatment significantly decreased the total biomass as indicated by a decrease in 16S rRNA gene concentration. Microbial community analysis via Illumina sequencing revealed that the relative abundance of putative pathogens was higher in membrane filtrate compared to primary effluent although the overall bacterial 16S rRNA gene concentrations was lower in filtrate. Membrane treatment also substantially reduced microbial diversity in filtrate compared to anaerobic reactor contents.Mainstream anaerobic wastewater treatment is a promising technology for sustainable water resource recovery. Anaerobic membrane bioreactors (AnMBRs) can meet relatively stringent BOD 5 and TSS regulatory standards (BOD 5 <10 mg L −1 , TSS <10 mg L −1 ) for municipal wastewater at temperatures as low as 10°C. The research reported herein demonstrated that AnMBR technology can also significantly reduce antibiotic resistance gene copies.

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Section: Enumeration Of 16s Rrna Genesmentioning

confidence: 99%

Removal of antibiotic resistance genes in an anaerobic membrane bioreactor treating primary clarifier effluent at 20 °C

Kappell

Kimbell

Seib

et al. 2018

Environ. Sci.: Water Res. Technol.

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“…It is worth noting that the nature of industrial wastewater is very different from urban wastewater in terms of both quantitative and qualitative indices . On the other hand, anaerobic processes are not usually used alone for the treatment of industrial wastewater, and in most industrial wastewater treatment plants, hybrid processes need to be employed . Therefore, the prioritization of anaerobic or aerobic processes alone cannot be applicable for industrial treatment plants that are the target of the present study.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of aerobic/anaerobic industrial wastewater treatment processes: The application of multi‐criteria decision analysis

Saghafi

Ebrahimi

Mehrdadi

et al. 2019

Env Prog and Sustain Energy

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Various technological methods are available for industrial wastewater treatment; from conventional to advanced treatment processes. Hence, it is a difficult task to select the most appropriate technology to treat industrial wastewater at a particular location. Many factors are involved in the decision‐making process, including capital, operation, and maintenance costs, as well as land requirement. The present work reports the results of the application of multiple‐attribute decision‐making (MADM) tool to industrial wastewater treatment plants operated under a hybrid aerobic/anaerobic biological process. At the first step, nine industrial wastewater treatment plants were evaluated and ranked by eight criteria using the Vikor method. Among the selected criteria, land requirements, energy consumption, and excess sludge production had the most pronounced effect on the decision‐making process. The results also indicated that the integration of upflow anaerobic fixed bed with intergraded fixed‐film activated sludge process could be used as the most appropriate treatment technology with a Vikor index of one. The result can provide wastewater treatment professionals and water agencies with an effective tool to choose the most appropriate hybrid process for industrial wastewater treatment plants. © 2019 American Institute of Chemical Engineers Environ Prog, 38:e13146, 2019

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“…As calculated, phenol loading rate of sludge was correspondingly enhanced from 0.2 (longer SRT) to 0.275 (shorter SRT) g phenol g -1 MLVSS d -1 , and it was much higher than the reported values [24,29]. The strong performance robustness of AnCMBR treating high-strength phenol wastewater was mainly attributed to the efficient microbial community [30,31]. As shown in Figure 2, it was also presented that the worse treatment performance and the obvious fluctuation of effluent were observed at the early stage of SRT decreasing.…”

Section: Effects Of Srts On Smp and Eps Of Sludgementioning

confidence: 76%

“…As shown in Figure 2, it was also presented that the worse treatment performance and the obvious fluctuation of effluent were observed at the early stage of SRT decreasing. The worse performance with shorter SRT might contribute to the decrease of sludge concentration and the shift of microbial community structure in the AnMBR [30]. The bacteria and archaea communities gradually adapted the high-strength phenol condition and then the treatment performance was recovered [31].…”

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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Impact of SRT on the efficiency and microbial community of sequential anaerobic and aerobic membrane bioreactors for the treatment of textile industry wastewater

Cited by 89 publications

References 47 publications

Removal of antibiotic resistance genes in an anaerobic membrane bioreactor treating primary clarifier effluent at 20 °C

Removal of antibiotic resistance genes in an anaerobic membrane bioreactor treating primary clarifier effluent at 20 °C

Evaluation of aerobic/anaerobic industrial wastewater treatment processes: The application of multi‐criteria decision analysis

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

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