MAHLE NFV Membrane Filtration Deoiler MFEB
MAHLE Industrial Filtration offers with their NFV-Membrane Filtration Deoiler reliable deoiling of bilge water < 1ppm.
Efficient separation – without the use of chemicals
NFV Membrane Filtration Deoilers are designed to separate all oil/water emulsions. The process requires neither additional thermal or chemical aids and it generates no new downstream pollution in the form of sludge or exhaust air. Functional tests on all types of oils and fuels used in shipping and by NATO vessels, and the combination of these with fire extinguishing foam and a variety of cleaner solvents, yielded outstanding separation results which comply fully with the international IMO Marpol MEPC.107(49) requirements and military test standards. The MFEB series delivers certified flow rates of between 0.1 m³/h and 7.5 m³/h. Even in large volume streams the oil in the water is dependably and thoroughly separated: NFV units achieve residual oil contents of significantly below 1 ppm – as has been demon-strated in successful tests performed by GL and German Navy.
The bilge water or waste water is pumped through a frequency-controlled eccentric screw pump into the high pressure deoiler where deoiling and pressure increase for the membranes take place.
1st stage: Multi-Phase Separation MPS
The classical deoiling is performed by the NFV Multi-Phase Separation profiles: the oily water accelerates and swirls as it passes through the inlet on to the profiles; small oil droplets coalesce to form large drops which are then bound by the adhesion force of the profiles. These large drops pass through oil ascent lines into the first oil tank. All solids or other heavier substances slide down the profiles into the sludge holding tank.
2nd stage: Membrane Filtration
The residual oil is pressure-separated in the membrane filter: the clean water is pressed through the membranes, while oil and all other residues are retained in the membrane. A backflushing system with permeate is periodically activated in order to prevent the membranes from clogging. The concentrated oil and other residuals are discharged automatically into the oil tank.
- Flexible, customised configurations and sizes: skid-mounted or modular design
- Reliable separation even of difficult, stable emulsions
- No chemicals required
- No consumables required
- Full compliance with IMO-Marpol MEPC.107(49)
- Certified by Germanischer Lloyd and the German Navy
Advantages in overview
- High separation performance
- Compact design
- Exceptionally robust
- Fully automatic, no supervision required
- Low maintenance system design
- Long maintenance intervals
- Highly durable membranes
- Achieves high oil concentrations
- Can handle waste water with up to 100% oil
MAHLE Industriefiltration GmbH is part of the MAHLE Group, one of the world's 30 largest automotive suppliers, and is a global supplier of innovative, top quality industrial filters. MAHLE Industriefiltration shelters two product brands NFV and AKO.
For almost 50 years, NFV products have been relaible systems for shipping companies in the field of deoiling, membrane filtration and fuel treatment. Our products help our partners to successfully balance economy and ecology. By focusing our maritime and petrochemical activities in the new Hamburg facility, we are able to concentrate research, planning and production in one site. MAHLE Industriefiltration provides with the NFV and AKO products a wide range of customised and highly efficient filtration and separation systems for a wide variety of applications: from bilge water separation over ballast water treatment to engine maintenance, the protection of hydraulic systems and pipelines, transfer and circulation systems. This comprehensive portfolio is rounded off by customer support services precisely tailored to customers’ needs. Ten of the world’s top 15 shipping companies and the world’s three largest shipyards as well as several navies around the world (e.g. German, Turkish, Russian and U.S. Navy) equip their ships with our environmentally friendly, high quality systems, placing their trust in the outstanding operating security of NFV- systems. The NFV-products have been the German Navy’s partner of choice for deoiling, membrane filtration and fuel treatment systems for over 30 years.
The MAHLE Group is one of the 30 largest automotive suppliers worldwide. As the leading manufacturer of combustion engine components, systems and peripherals, MAHLE is among the top 3 suppliers for piston systems, cylinder components, valve train systems, air management systems and liquid management systems. MAHLE employs approximately 48,000 employees in 110 production plants and eight research and development centers. In 2007, MAHLE generated sales in excess of EUR 5 billion (USD 7.5 billion).