Membrane fouling mechanism of biofilm-membrane bioreactor (BF-MBR): Pore blocking model and membrane cleaning

Zheng, Yi1,2; Zhang, Wenxiang1,2; Tang, Bing1,2; Ding, Jie1,2; Zheng, Yi3; Zhang, Zhien4

2018-02

10.1016/j.biortech.2017.11.036

BIORESOURCE TECHNOLOGY   影响因子和分区

0960-8524

1873-2976

Biofilm membrane bioreactor (BF-MBR) is considered as an important wastewater treatment technology that incorporates advantages of both biofilm and MBR process, as well as can alleviate membrane fouling, with respect to the conventional activated sludge MBR. But, to be efficient, it necessitates the establishment of proper methods for the assessment of membrane fouling. Four Hermia membrane blocking models were adopted to quantify and evaluate the membrane fouling of BF-MBR. The experiments were conducted with various operational conditions, including membrane types, agitation speeds and transmembrane pressure (TMP). Good agreement between cake formation model and experimental data was found, confirming the validity of the Hermia models for assessing the membrane fouling of BF-MBR and that cake layer deposits on membrane. Moreover, the influences of membrane types, agitation speeds and transmembrane pressure on the Hermia pore blocking coefficient of cake layer were investigated. In addition, the permeability recovery after membrane cleaning at various operational conditions was studied. This work confirms that, unlike conventional activated sludge MBR, BF-MBR possesses a low degree of membrane fouling and a higher membrane permeability recovery after cleaning.

Biofilm membrane bioreactor (BF-MBR) Filtration performance Membrane fouling Blocking model Membrane cleaning

SCI ; EI

英语

其他

Scientific Research Fund of Guangdong University of Technology[220413582]

Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels

Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels

WOS:000430740000049

ELSEVIER SCI LTD

20175004520262

Activated sludge process ; Bioconversion ; Biofilms ; Bioreactors ; Cleaning ; Membrane fouling ; Membranes ; Wastewater treatment

Sewage Treatment:452.2 ; Industrial Wastes Treatment and Disposal:452.4 ; Biomaterials (including synthetics):462.5 ; Chemical Apparatus and Plants; Unit Operations; Unit Processes:802 ; Materials Science:951

BIOLOGY & BIOCHEMISTRY

Web of Science

1.Guangdong Univ Technol, Sch Environm Sci & Engn, Guangzhou 510006, Guangdong, Peoples R China
2.Guangdong Univ Technol, Inst Environm Hlth & Pollut Control, Guangzhou 510006, Guangdong, Peoples R China
3.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
4.Chongqing Univ Technol, Sch Chem & Chem Engn, Chongqing 400054, Peoples R China

Zheng, Yi,Zhang, Wenxiang,Tang, Bing,et al. Membrane fouling mechanism of biofilm-membrane bioreactor (BF-MBR): Pore blocking model and membrane cleaning[J]. BIORESOURCE TECHNOLOGY,2018,250:398-405.

Zheng, Yi,Zhang, Wenxiang,Tang, Bing,Ding, Jie,Zheng, Yi,&Zhang, Zhien.(2018).Membrane fouling mechanism of biofilm-membrane bioreactor (BF-MBR): Pore blocking model and membrane cleaning.BIORESOURCE TECHNOLOGY,250,398-405.

Zheng, Yi,et al."Membrane fouling mechanism of biofilm-membrane bioreactor (BF-MBR): Pore blocking model and membrane cleaning".BIORESOURCE TECHNOLOGY 250(2018):398-405.