Five years operation of a decentralized membrane bioreactor package plant treating domestic wastewater

Membrane bioreactor (MBR) package systems are providing affordable and simple-to-use decentralized wastewater treatment solutions for small to medium sized communities that face the challenge of balancing environmental and regulatory responsibilities with budgetary limitations. With a greater confid...

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Bibliographic Details
Published inWater practice and technology Vol. 9; no. 2; pp. 206 - 214
Main Authors Tai, C. S., Snider-Nevin, J., Dragasevich, J., Kempson, J.
Format Journal Article
LanguageEnglish
Published London IWA Publishing 01.06.2014
Subjects
Activated sludge
Aeration
Biochemical oxygen demand
Bioreactors
Domestic wastewater
E coli
Effluents
Membrane reactors
pH effects
Retrofitting
Rivers
Sludge
Solutions
Surface water
Technology
Terraces
Total oxygen demand
Wastewater
Wastewater treatment
Wastewater treatment plants
Water discharge
Water reclamation
Water treatment plants
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Summary:Membrane bioreactor (MBR) package systems are providing affordable and simple-to-use decentralized wastewater treatment solutions for small to medium sized communities that face the challenge of balancing environmental and regulatory responsibilities with budgetary limitations. With a greater confidence and understanding of MBR technology, there is an increasing incentive in using MBR technology for these types of applications. Furthermore, valued qualities such as compact footprint, quick installation and start-up, process reliability, ease of operation, and superior effluent quality suitable for direct surface discharge and water reclamation have made MBR package system a preferred solution for decentralized wastewater treatment applications. This paper presents a retrofit solution for the Whitehouse Terrace Wastewater Treatment Plant. The existing extended aeration activated sludge package plant was retrofitted with a pre-engineered newterra MicroClearTM MBR package system for a small community along St Lawrence River in Brockville, Ontario. Five years full scale operation data of the MBR package system is presented and it is evident that the MBR package system consistently delivered high quality effluent that is far better than the required limit for direct surface water discharge to the St. Lawrence's river, with average effluent quality of 2.4, 2.6, 0.5, 0.05 mg/L, 1.7 counts/100 mL and 7.4 for biochemical oxygen demand, TSS, TP, TAN, Escherichia coli and pH, respectively.
ISSN:1751-231X
1751-231X
DOI:10.2166/wpt.2014.024