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Evac - Membrane Bio Reactor (MBR)
Evac MBR (Membrane BioReactor) is an advanced biological wastewater treatment plant suitable for all vessel types ranging from small yachts to large cruise ships. The MBR plant handles all black (sewage) and grey waters from galleys, sinks, showers, and laundry facilities, generating good quality effluent in one step without the need for further post-treatment steps. The MBR can incorporate an optional additional nutrient removal step.
- Wastewater treatment plant for all passenger vessels
- Treats all wastewater streams to current standards – and beyond
- The heart of an advanced wastewater process
- Completely automatic and easy to maintain and control.
- High-quality disinfected effluent without the use of chemicals
- Extremely low running costs and minimal energy consumption
- Completely modular and highly customizable system.
- IMO MEPC.227(64) compliant
All small and mid-range standard Evac MBRs are available in two models: a basic version and a combined unit known as the C-model.
In combined units the Evac MBR is equipped with an ejector vacuum unit, so no separate ejector vacuum unit or collecting tank is required. A combined Evac MBR unit has several advantages: although the C-model has a slightly larger footprint than its basic counterpart, the total footprint of the MBR unit and the ejector vacuum unit is smaller than the footprint of two separate units. The C-model is also easier to use as both units can be monitored from a single control panel. C-models are also more cost-effective than purchasing a basic model and an ejector vacuum unit separately.
For mid-range Evac MBRs, a nutrient removal (N) module is also available if required.
Custom-designed Evac MBRs are typically used when the hydraulic or organic load requirement of the application is so high that the use of Evac standard units is not possible.
Because of the large size of cruise vessels, custom-designed membrane bioreactor plants are the only option for all but the smallest river cruise vessels. The capacity of custom-designed membrane bioreactors, including their hydraulic and BOD loads, can be agreed separately with Evac.
A custom-designed MBR plant can also be used for applications with special requirements, such as nitrogen or phosphorus removal. For all large and custom-designed Evac MBRs, a nutrient removal (N) module is also available if required.