Nowaday, Evac’s sewage treatment plants are the natural choice for shipbuilders. Because of the fact that the conventional sewage treatment plants do not meet requirements of the new IMO MARPOL resolution MEPC.159(55) Evac has developed a new treatment technology called Evac membrane bioreactor (MBR). Evac has a proven track record of reliable deliveries, worldwide support and tested effluent results.

Regulations

The Evac MBR is certified according to the new IMO MARPOL resolution MEPC.159(55) and meets all other existing regulations. This enables vessels equipped with the Evac MBR to operate all around the world – including environmentally sensitive areas.

The IMO testing procedure outlined in MEPC.159(55) requires that the influent concentration of total suspended solids should be no less than 500 mg/l. In order to ensure that it will work under all conditions, the Evac MBR has been tested with over 2100 mg/l of total suspended solids in the influent concentration. This makes it the ideal solution for the treatment of black water collected by vacuum, a solution that requires no dilution water.

Advantages:

• Extremely low running costs and energy consumption
• Resistant to clogging and fouling of the membrane
• Expected lifetime of membranes more than 10 years
• Small footprint
• Low sludge yield
• No continual chemical consumption
• Disinfection is not required
• Dilution water is not required