As environmental regulations become increasingly stringent, Membrane Bioreactor (MBR) Technologies enable developers to treat wastewater streams to meet even the strictest permit regulations. Membrane bioreactors for wastewater treatment offer several benefits, including:
- Treated wastewater effluent can be used in reuse applications.
- Remote facilities can be constructed in decentralized locations.
- Cost-effective in flow ranges from 7,500 GPD to 2 MGD.
- Mobile units available, allows for temporary plant bypass.
In general, membrane bioreactor systems are comprised of similar components, just scaled to match the intended flow rate of the facility. Wastewater treatment systems have:
- Headworks Screen – Removes course solids such as rags, sticks, wood, and other larger materials that clog or disrupt the treatment process.
- Equalization Tank – Normalizes the otherwise inconsistent flow rate of a service area.
- Treatment Basin – Has zones for anoxic and anerobic processing and houses the membrane filters.
- Sludge Processing – Holding tank for biological processes and dumpster for landfill.
- Effluent Discharge – Chemical contact tanks, reuse storage tanks, and/or discharge pumps.
MBR plants are becoming an increasingly popular alternative, amongst private communities and municipalities alike. IWS has designed and constructed plants with all of the major membrane technologies, including flat plate, hollow fiber and ceramic membranes.
IWS is experienced in designing and constructing MBR wastewater treatment systems utilizing the aforementioned technologies. We provide clients with a customized solution based on:
- Flow rates and nutrient loading
- Phasing of future development
- Local and State regulations
- Existing site conditions
- Anticipated treated effluent limits
- Estimated cost of construction
Selecting the right equipment package is essential in ensuring a project’s schedule, scope, and budget. IWS has the capacity to provide permitting and design/build services and is an industry leader. We have:
- Completed work in states all over North America.
- Constructed facilities in both public and private sectors.
- Utilized MBR technologies for a wide range of reuse applications, including Title 22 reuse effluent standards.
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Critical Components of MBR Systems
Membrane Filtration
Membrane filtration is a crucial component of wastewater treatment. MBR systems use various types of membrane filtration to ensure the highest quality of treated water.
Membrane Fouling
Managing membrane fouling is critical to the operation of MBR systems. IWS employs advanced techniques to minimize fouling and extend the life of the membranes.
Submerged Membranes and UF Membranes
MBR systems often utilize submerged and ultrafiltration (UF) membranes, which enhance the efficiency and effectiveness of the treatment process.
Biological Treatment
The biological treatment processes within MBR systems, including the activated sludge process, ensure the breakdown of organic matter and the reduction of nutrient levels in the treated water.
Nutrient Removal and Membrane Modules
Nutrient removal is a vital function of MBR systems, achieved through specialized membrane modules. This ensures compliance with environmental standards and the production of high-quality effluent.
Treated Water and Water Reuse
MBR systems produce high-quality treated water suitable for various water reuse applications, contributing to sustainable water management practices.
Chemical Cleaning and Membrane Material
Regular chemical cleaning of the membrane material helps maintain the efficiency of MBR systems and ensures long-term performance.
Landfill Leachate and Biomass Management
MBR systems are also used to treat landfill leachate and manage biomass effectively to ensure environmentally safe discharge.
Microorganisms and Solids Concentration
Microorganisms’ role in MBR systems is crucial for the solids concentration and overall effectiveness of the wastewater treatment process.