A review of practical tools for rapid monitoring of membrane bioreactors

WATER RESEARCH

卷:102

Review

Scholes, E.¹  Verheyen, V.²  Brook-Carter, P.² 

[1] Monash Univ, Fac Sci, Clayton, Vic 3800, Australia

[2] Federat Univ Australia, Sch Appl & Biomed Sci, Northways Rd, Churchill, Vic 3842, Australia

关键词: MBR;    Activated sludge;    Process monitoring;    CST;    TOC/TNb;    ATP;   

DOI  :  10.1016/j.watres.2016.06.031

来源: Elsevier

【 摘 要 】

The production of high quality effluent from membrane bioreactors (MBRs) arguably requires less supervision than conventional activated sludge (CAS) processes. Nevertheless, the use of membranes brings additional issues of activated sludge filterability, cake layer formation and membrane fouling. From a practical standpoint, process engineers and operators require simple tools which offer timely information about the biological health and filterability of the mixed liquor as well as risks of membrane fouling. To this end, a range of analytical tools and biological assays are critically reviewed from this perspective. This review recommends that Capillary Suction Time (CST) analysis along with Total Suspended and Volatile Solids (TSS/VSS) analysis is used daily. For broad characterisation, total carbon and nitrogen analysis offer significant advantages over the commonly used chemical and biological oxygen demand (COD/BOD) analyses. Of the technologies for determining the vitality of the microbial biomass the most robust and reproducible, are the second generation adenosine-5'-triphbsphate (ATP) test kits. Extra cellular polymer concentrations are best monitored by measurement of turbidity after centrifugation. Taken collectively these tools can be used routinely to ensure timely intervention and smoother operation of MBR systems. (C) 2016 Elsevier Ltd. All rights reserved.

【 授权许可】

Free