Microbial composition of a hydropower cooling water system reveals thermophilic bacteria with a possible role in primary biofilm formation

Reis, Mariana de Paula; Paula, Rayan Silva de; Reis, André; Souza, Clara Carvalho E; Júnior, Renato Brito de Oliveira; Ferreira, Jacqueline Alves; Mota, Hélen Regina; Carvalho, Marcela David de; Jorge, Érika Cristina; Cardoso, Antônio Valadão; Nascimento, Andréa M. A.

doi:10.1080/08927014.2021.1897790

Cited by 4 publications

(1 citation statement)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the hollow-fiber membrane surface of 1#MBR is more suitable for microbial growth and more likely to perform biofilm that causes biofilm fouling than the flat-sheet organic membrane of 2#MBR is. Mariana [57] showed that Thermomonas may be potential targets for microfouling. Several studies [58,59] showed that Xanthomonas of Gammaproteobacteria is identified as an EPS producer and related to fouling development.…”

Section: Analysis Of Microbial Community Structurementioning

confidence: 99%

The effect of aeration mode on the operational effectiveness and membrane bioreactors for greywater treatment and membrane fouling

Shi

Yan

Zuo

et al. 2022

Environmental Engineering Research

View full text Add to dashboard Cite

This study aims to investigated the effect of aeration mode on membrane bioreactors (MBRs) using a self-designed integrated hollow fiber MBR and flat sheet organic MBR for rural greywater treatment. The pollutant removal efficiency, characteristics of activated sludge and mixed liquor, and mechanisms of membrane fouling were systematically analyzed under intermittent aeration and continuous modes. The results indicate that the permeability of MBRs in intermittent aeration mode is higher than that in the continuous aeration mode when operating at the same aeration rate. Due to the higher extracellular polymeric substance (EPS) and soluble microbial product (SMP) concentrations. The removal rates of TN and TP by both MBRs at the intermittent aeration mode were higher than those in the continuous aeration mode due to the difference in the aeration environment. Compared to the flat-sheet organic membrane, the hollow-fiber membrane surface was more likely to form biofilms, which cause biological fouling.The relative abundance of Thermomonas showed a positive correlation with the EPS concentration, indicating that Thermomonas participates in EPS synthesis. This study provides a theoretical basis for evaluating the influence of aeration modes on MBRs,and would be a useful guide for the better control of membrane fouling and treatment of rural greywater.

show abstract

Section: Analysis Of Microbial Community Structurementioning

confidence: 99%