Effects of anaerobic granular sludge towards the treatment of flowback water in an up-flow anaerobic sludge blanket bioreactor: Comparison between mesophilic and thermophilic conditions

Liang, Jiahao; Wang, Qinghong; Li, Jin; Guo, Shaohui; Ke, Ming; El-Din, Mohamed Gamal; Chen, Chunmao

doi:10.1016/j.biortech.2021.124784

Cited by 20 publications

(9 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Methanoplanus limicola, the sole archaeal species detected in this genus in this study, is a mesophilic methanogen that relies on acetate for growth Methanosaeta, Methanocalculus, Methanobacterium, Methanothermus, and Methanococcus were typical methanogens in samples with abundances of 1.1–16.4%, and these genera were widely detected in SGFPW . Moreover, the abundance of Thermococcus surpassed 1% in samples W2–W4 and W6.…”

Section: Resultsmentioning

confidence: 99%

“…49 Methanosaeta, Methanocalculus, Methanobacterium, Methanothermus, and Methanococcus were typical methanogens in samples with abundances of 1.1−16.4%, and these genera were widely detected in SGFPW. 14 Moreover, the abundance of Thermococcus surpassed 1% in samples W2−W4 and W6. This genus, known as a strictly anaerobic and extremely thermophilic microorganism, exhibits an optimal growth temperature range of 75−88 °C and possesses sulfate-reducing capabilities.…”

Section: Archaeal Community Structurementioning

confidence: 97%

“…Thus, anaerobic biotechnology may have great application potential in SGFPW treatment for the following reasons: (1) SGFPW has a certain amount of waste heat (∼60 °C). 14 (2) The high abundance of microorganisms in SGFPW is almost all anaerobic microorganisms. (3) The shale gas exploration site has the methane separation device.…”

Section: Eukaryotic Communitymentioning

confidence: 99%

“…Furthermore, microorganisms present in SGFPW exhibit efficient organic matter degradation capabilities in high-salinity environments . In the anaerobic and aerobic bioreactors, organic-matter-degrading microorganisms in SGFPW would be continuously enriched and a high organic matter removal rate could be achieved. − Hence, understanding the structure of microbial communities and their activities holds paramount importance in the design of strategies for the storage, treatment, reuse, and recovery of SGFPW as well as comprehending subsurface biogeochemical processes.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Microbial Insights into Shale Gas Wastewater from the Sichuan Basin: Diversity, Potential Functions, and Implications

Tang,

Zhong,

Zhang

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

Shale gas flowback and produced water (SGFPW) represent a reservoir of diverse and valuable halophilic microbial resources with profound implications for both shale gas production and SGFPW treatment strategies. However, current research is limited, especially in China. To address this gap, we conducted an extensive study of the microbial community compositions within SGFPW originating from three prominent shale gas blocks in the Sichuan Basin, China. Our findings underscored the coexistence of halotolerant and halophilic bacteria, methylotrophic archaea, and eukaryotes within SGFPW, revealing a remarkably intricate microbial ecosystem. Intriguingly, the archaeal community structure exhibited striking similarity across all SGFPW samples, implying a consistent composition in this regard. Moreover, salinity was identified as a pivotal factor shaping the bacterial community structure in SGFPW. Although divergence in species and abundance of core microbial genera was observed among distinct SGFPW samples, their dominant potential functions remained remarkably consistent. These functions encompassed sulfate reduction, methane production, denitrification, acid production, and degradation of characteristic organic matter of SGFPW. Our comprehensive study significantly advances the comprehension of the microbial community structure within SGFPW, thereby offering valuable insights to augment the overall efficiency of SGFPW management and develop efficient SGFPW biological treatment technologies.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Archaeal Community Structurementioning

confidence: 97%

Section: Eukaryotic Communitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Microbial Insights into Shale Gas Wastewater from the Sichuan Basin: Diversity, Potential Functions, and Implications

Tang,

Zhong,

Zhang

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

show abstract

“…These results suggested that the addition of iron can increase the production of EPS. Notably, EPS secreted by microorganisms plays an important role in the structural stability of the sludge ( Liang et al, 2021 ) and the PN content in R Rusy (17.39 mg/gVSS) and R Clean (17.38 mg/gVSS) systems were higher than that in the control system14.09 mg/gVSS. A previous study showed that the increase of PN content can enhance the flocculation ability of EPS and subsequently improve the stability of the system ( Siddharth et al, 2021 ).…”

Section: Resultsmentioning

confidence: 99%

Performance and mechanisms of enhanced hydrolysis acidification by adding different iron scraps: Microbial characteristics and fate of iron scraps

Wang

Jin

et al. 2022

Front. Microbiol.

View full text Add to dashboard Cite

HA, as one of low-carbon pre-treatment technology could be enhanced by packing of iron or iron oxide powder for enhancing the transformation of large molecular weight to generate volatile fatty acids (VFAs) for fuel production. However, the controversy of iron strengthening the HA and inherent drawbacks of iron oxide, such as poor mass transfer, and difficult recovery, limit this pretreatment technology. Clean and rusty iron scraps were packed into an HA system to address these issues while focusing on the system performance and the response of core bacterial and fungal microbiomes to iron scrap exposure. Results showed that clean and rusty iron scraps can significantly improve the HA performance while considering hydrolysis efficiency (HE), acidification efficiency (AE) and VFAs production, given that VFAs ratios (Cacetate: Cpropionate: Cbutyrate) were changed from the 14:5:1 to 14:2:1 and 29:4:1, respectively, and the obtained VFAs ratios in iron scraps addition systems were more closely to the optimal VFAs ratio for lipids production. Redundant and molecular ecological network analyses indicated that iron scraps promote the system stability and acidogenesis capacity by boosting the complexity of microbes’ networks and enriching core functional microbes that show a positive response to HA performance, among which the relative abundance of related bacterial genera was promoted by 19.71 and 17.25% for RRusty and RClean systems. Moreover, except for the differences between the control and iron scraps addition systems, the findings confirmed that the RRusty system is slightly different from the RClean one, which was perhaps driven by the behavior of 6.20% of DIRB in RRusty system and only 1.16% of homoacetogens in RClean system when considering the microbial community and fate of iron scraps. Totally, the observed results highlight the application potential of the iron scrap-coupled HA process for the generation of VFAs and provide new insights into the response of different iron scraps in microbes communities.

show abstract

Monitoring of a microbial community during bioaugmentation with hydrogenotrophic methanogens to improve methane yield of an anaerobic digestion process

et al. 2023

View full text Add to dashboard Cite

Methane production by microbial fermentation of municipal waste is a challenge for better yield processes. This work describes the characterization of a hydrogenotrophic methanogen microbial community used in a bioaugmentation procedure to improve the methane yield in a thermophilic anaerobic process, digesting the organic fraction of municipal solid waste. The performance of the bioaugmentation was assessed in terms of methane production and changes in the microbial community structure. The results showed that bioaugmentation slightly improved the cumulative methane yield (+ 4%) in comparison to the control, and its use led to an acceleration of the methanogenesis stage. We observed associated significant changes in the relative abundance of taxa and their interactions, using high throughput DNA sequencing of V3-16S rRNA gene libraries, where the abundance of the archaeal hydrogenotrophic genus Methanoculleus (class Methanomicrobia, phylum Euryarchaeota) and the bacterial order MBA08 (class Clostridia, phylum Firmicutes) were dominant. The relevant predicted metabolic pathways agreed with substrate degradation and the anaerobic methanogenic process. The purpose of the study was to evaluate the effect of the addition of hydrogenotrophic methanogens in the generation of methane, while treating organic waste through anaerobic digestion.

show abstract

Effects of anaerobic granular sludge towards the treatment of flowback water in an up-flow anaerobic sludge blanket bioreactor: Comparison between mesophilic and thermophilic conditions

Cited by 20 publications

References 46 publications

Microbial Insights into Shale Gas Wastewater from the Sichuan Basin: Diversity, Potential Functions, and Implications

Microbial Insights into Shale Gas Wastewater from the Sichuan Basin: Diversity, Potential Functions, and Implications

Performance and mechanisms of enhanced hydrolysis acidification by adding different iron scraps: Microbial characteristics and fate of iron scraps

Monitoring of a microbial community during bioaugmentation with hydrogenotrophic methanogens to improve methane yield of an anaerobic digestion process

Contact Info

Product

Resources

About