Performance and membrane fouling of two types of laboratory-scale submerged membrane bioreactors for hospital wastewater treatment at low flux condition

被引：37

作者：

Thanh-Tin Nguyen ^{[1
]}

Xuan-Thanh Bui ^{[1
]}

Thi-Dieu-Hien Vo ^{[1
]}

Duy-Dat Nguyen ^{[1
]}

Phuoc-Dan Nguyen ^{[1
]}

Hong-Lan-Chi Do ^{[2
]}

Huu-Hao Ngo ^{[3
]}

Guo, Wenshan ^{[3
]}

机构：

[1] Viet Nam Natl Univ, Univ Technol, Fac Environm & Nat Resources, Ho Chi Minh, Vietnam

[2] Viet Nam Natl Univ, Ho Chi Minh, Vietnam

[3] Univ Technol Sydney, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2016年 / 165卷

关键词：

Hospital wastewater; Fouling; Sponge membrane bioreactor; Low flux; SLUDGE CHARACTERISTICS; RETENTION TIME; SYSTEMS;

D O I：

10.1016/j.seppur.2016.03.051

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The performance and membrane fouling of a lab-scale submerged sponge-membrane bioreactor (Sponge-MBR) and a conventional MBR were investigated and compared for hospital wastewater treatment at low fluxes of 2-6 LMH. COD removal by the Sponge-MBR was similar to that of the MBR, while the Sponge-MBR achieved 9-16% removed more total nitrogen than the MBR. This was due to 60% of total biomass being entrapped in the sponges, which enhanced simultaneous nitrification denitrification. Additionally, the fouling rates of the Sponge-MBR were 11-, 6.2- and 3.8-times less than those of the MBR at flux rates of 2, 4 and 6 LMH, respectively. It indicates the addition of sponge media into a MBR could effectively reduce the fouling caused by cake formation and absorption of soluble substances in a low flux scenario. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：123 / 129

页数：7

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