Insights into membrane fouling implicated by physical adsorption of soluble microbial products onto D3520 resin

Ruyi Cao; Juanjuan Zhou; Weiwei Chen

doi:10.1016/j.cjche.2019.06.005

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Insights into membrane fouling implicated by physical adsorption of soluble microbial products onto D3520 resin

Separation Science and Engineering | Updated：2026-01-06

- Insights into membrane fouling implicated by physical adsorption of soluble microbial products onto D3520 resin
- Insights into membrane fouling implicated by physical adsorption of soluble microbial products onto D3520 resin
- 中国化学工程学报（英文版） 2020年28卷第2期页码：429-439
- Affiliations：
  
  School of Chemical Engineering, Inner Mongolia University of Technology,Hohhot,China,010051
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2019.06.005
  中图分类号：
- 纸质出版：2020
- Accepted：
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Ruyi Cao, Juanjuan Zhou, Weiwei Chen. Insights into membrane fouling implicated by physical adsorption of soluble microbial products onto D3520 resin[J]. 中国化学工程学报（英文版）, 2020,28(2):429-439.

Ruyi Cao, Juanjuan Zhou, Weiwei Chen. Insights into membrane fouling implicated by physical adsorption of soluble microbial products onto D3520 resin[J]. Chinese Journal of Chemical Engineering, 2020, 28(2): 429-439.
Ruyi Cao, Juanjuan Zhou, Weiwei Chen. Insights into membrane fouling implicated by physical adsorption of soluble microbial products onto D3520 resin[J]. 中国化学工程学报（英文版）, 2020,28(2):429-439. DOI： 10.1016/j.cjche.2019.06.005.

Ruyi Cao, Juanjuan Zhou, Weiwei Chen. Insights into membrane fouling implicated by physical adsorption of soluble microbial products onto D3520 resin[J]. Chinese Journal of Chemical Engineering, 2020, 28(2): 429-439. DOI： 10.1016/j.cjche.2019.06.005.

摘要

Abstract

Membrane fouling is a major problem in membrane bioreactors (MBRs). In this study

membrane fouling caused by membrane rejection and adsorption was study. Filtration tests indicated that membrane rejected SMP

causing membrane pore blockage and then forming a gel layer. Batch adsorption experiments showed that adsorption of SMP onto PVDF membrane was a spontaneous physical adsorption process.Meanwhile

the absolute value Δ

of adsorption of SMP onto D3520 was higher than that of adsorption of SMP onto PVDF membrane

so SMP preferentially adsorbed onto D3520 rather than PVDF membrane. Thus

the effect of ARs on reducing the SMP concentration was investigated. It was found that

6 g of D3520 was suitable for adsorption of SMP. This physical adsorption involved external film diffusion

intra-particle diffusion

and surface adsorption. The Redlich-Peterson isotherm model performed best in terms of describing this equilibrium data. The mechanism of membrane fouling mitigation was verified by MBR simulation system. A case study of AR-MBR system was conducted. The results showed that addition of D3520 can effectively alleviate the development of membrane fouling.

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