With over 600 permitted installations in the United States treating upwards of 1 billion gallons per day (BGD), membrane bioreactors (MBRs) are playing an increasingly vital role in water conservation. While many new wastewater treatment plants (WWTPs) are constructed every year, the majority of MBR projects involve the 3 Rs; water reuse, the retrofit of existing infrastructure or the replacement of older membrane technologies. This paper will survey several projects that fall into reuse, retrofit and or replacement categories. Using input from engineers and plant operators, key design parameters and performance criteria will be presented including capital expense (CAPEX) and operating expense (OPEX) data. Case studies will include data from small plants, treating <50,000 gallon per day (GPD) up to larger installations treating >42,000,000 GPD. The focus of the presentation will be MBRs currently operating in the Pacific Northwest.
This presentation is available to AMTA Members only.
- Dennis Livingston, PE
- Ovivo USA, LLC
- AMTA/NWMOA/WEF Technology Transfer Workshop, Vancouver, WA
- AMTA/NWMOA/WEF Technology Transfer Workshop
- MBR for reuse, MBR for retrofit, MBR membrane replacement