A systematic study of soluble microbial products and their fouling impacts in membrane bioreactors

Tian, Yu; Lin, Chen; Zhang, Sai; Zhang, Shuai

doi:10.1016/j.cej.2011.01.090

Cited by 62 publications

(21 citation statements)

References 25 publications

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“…Recent reports, however, pointed out that proteins are also important foulants in MBRs (Metzger et al 2007;Kimura et al 2008a;Miyoshi et al 2009;Tang et al 2010;Tian et al 2011). The results obtained in this study agreed with the recent findings indicating that proteins should also be considered in the development of membrane fouling in MBRs.…”

Section: Characteristics Of Extracted Foulantsmentioning

confidence: 99%

“…In a number of previous studies, together with polysaccharides, proteins were also identified as one of the major foulants in MBRs (Metzger et al 2007;Kimura et al 2008a;Miyoshi et al 2009;Tang et al 2010;Tian et al 2011). Identifying the major proteins causing membrane fouling will give us detailed information on the structures, the properties, and even the functions of the proteins that play important roles in developing membrane fouling.…”

Section: Introductionmentioning

confidence: 99%

“…Attention has been given to various fractions such as utilization-associated products (UAP) (Jiang et al 2010;Tian et al 2011), biopolymer cluster (BPC) (Wang and Li 2008;Sun et al 2011), and transparent exopolymer particles (TEP) (de la Torre et al 2008). At present, however, actual contributions of these fractions to the development of membrane fouling are still unclear, and therefore, no universal fouling indicator has been proposed (Drews 2010).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Identification of proteins involved in membrane fouling in membrane bioreactors (MBRs) treating municipal wastewater

Miyoshi

Aizawa

Kimura

et al. 2012

International Biodeterioration & Biodegradation

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The proteins that caused membrane fouling in a continuous operation of MBRs treating real municipal wastewater were investigated in detail. We continuously operated two identical pilot-scale MBRs under different solid retention times (SRTs) and extracted the foulants at the end of the operation. Regardless of the operating conditions, proteins were dominant components in the foulants extracted from the fouled membranes. The extracted proteins were subjected to the separation with two-dimensional polyacrylamide gel electrophoresis (2D-PAGE) and the identification through the N-terminal amino acid sequencing analysis. The proteins concentrated by the combination of the crude concentration using an ultra-filtration (UF) membrane and trichloroacetic acid (TCA) precipitation were separated and visualized well on 2D-PAGE gels. The results of 2D-PAGE analysis indicated that the compositions of proteins that caused membrane fouling significantly differed depending on the SRT, although such differences cannot be seen in the amino acid composition analysis. Analyzing selected 2D-PAGE spots by N-terminal amino acid sequencing analysis led to the identification of two well-characterized outer membrane proteins originating from Pseudomonas genus, namely OprF and OprD. To our knowledge, this is the first successful identification of proteins that have caused membrane fouling in continuous operations of MBRs treating real wastewater.

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Section: Characteristics Of Extracted Foulantsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Identification of proteins involved in membrane fouling in membrane bioreactors (MBRs) treating municipal wastewater

Miyoshi

Aizawa

Kimura

et al. 2012

International Biodeterioration & Biodegradation

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show abstract

“…For complete blocking, it is supposed that the particles completely block the entrance of pores with a single layer and the water cannot pass through the pore any more. For standard blocking, it is assumed that particles are accumulated on the walls of straight cylindrical pores, and the decrease in pore volume is proportional to permeate volume [20]. For intermediate blocking, it is resemble to complete blocking but assumes that some particles deposit on the top of blocked particles.…”

Section: Modeling For Membrane Fouling Processmentioning

confidence: 99%

Analysis of the major particle-size based foulants responsible for ultrafiltration membrane fouling in polluted raw water

Liu

Yang

et al. 2014

Desalination

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“…The filtration models' assumptions are described by Tian et al [22] and the equations are listed in Table 1. The fouling evolution of raw water and different pretreated waters were estimated using these equations.…”

Section: Modeling For Membrane Fouling Processmentioning

confidence: 99%

Identification of the fouling-caused foulants with different pretreatments during ultrafiltration in polluted raw water

Liu

Yang

et al. 2014

Desalination and Water Treatment

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2015) Identification of the fouling-caused foulants with different pretreatments during ultrafiltration in polluted raw water, Desalination and Water Treatment, 55:11, 2891-2899, Different pretreatments, including coagulation, adsorption, and biofiltration, were used to identify the useful pretreatment for the ultrafiltration of polluted raw water. The following prefiltration investigation was conducted to identify foulants that were responsible for membrane fouling. Organic removal and particle size distribution of different pretreated samples were measured. The results indicated that the concentration of organic matter was not the critical factor that determined the extent of flux decline. The turbidity relevant materials, such as colloids and particles, were supposed to be important fouling-caused substances, and the particle size distribution also had a significant influence on flux decline. Moreover, the fouling resistance of different prefiltrated samples showed that foulants sized over the membrane pore size caused the main part of the membrane fouling in raw water. Component analysis demonstrated that protein-like substances played a crucial role in membrane fouling; however, humic-like substances led to a weak membrane fouling.

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A systematic study of soluble microbial products and their fouling impacts in membrane bioreactors

Cited by 62 publications

References 25 publications

Identification of proteins involved in membrane fouling in membrane bioreactors (MBRs) treating municipal wastewater

Identification of proteins involved in membrane fouling in membrane bioreactors (MBRs) treating municipal wastewater

Analysis of the major particle-size based foulants responsible for ultrafiltration membrane fouling in polluted raw water

Identification of the fouling-caused foulants with different pretreatments during ultrafiltration in polluted raw water

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