期刊
BIORESOURCE TECHNOLOGY
卷 250, 期 -, 页码 398-405出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.11.036
关键词
Biofilm membrane bioreactor (BF-MBR); Filtration performance; Membrane fouling; Blocking model; Membrane cleaning
资金
- National Natural Science Foundation of China [41371473, 21476050]
- Guangdong Natural Science Foundation of China [2017A030310540]
- Guangdong provincial education department Youth Innovative Talents Project [17ZK0110]
- Scientific Research Fund of Guangdong University of Technology [220413582]
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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据