Impact of aeration rates on particle colloidal fraction in the biofilm membrane bioreactor (BF-MBR)

被引：66

作者：

Ivanovic, Igor ^{[1
]}

Leiknes, TorOve ^{[1
]}

机构：

[1] NTNU Norwegian Univ Sci & Technol, Dept Hydraul & Environm Engn, N-7491 Trondheim, Norway

来源：

DESALINATION | 2008年 / 231卷 / 1-3期

关键词：

Biofilm-MBR; Colloidal fraction; Fouling rate; Particle size distribution (PSD); Specific aeration demand-membrane area (SAD(m));

D O I：

10.1016/j.desal.2007.11.046

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In BF-MBR, as in all sMBR systems, sufficient aeration is necessary to maintain local cross-flow conditions for sustainable membrane operation. Aeration rate is normally based on previous experiences and manufactures' recommendations. BF-MBR with an external submerged membrane unit, designed only for particle separation, could be relatively easily optimized in terms of membrane aeration. Combining observed fouling rates with measured particle size distribution and minimizing both parameters indicates a desirable sustainable aeration rate for given wastewater characteristic, operating parameters (i.e. production/backwash flux, recovery) and membrane module geometry.

引用

页码：182 / 190

页数：9

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