Customer Name: AW Ship Management Ltd

Name of Project: Hartland Point bilge water filtration upgrade

Location: Sea Mounting Centre, Southampton, United Kingdom

Initial Enquiry:

AW Ship Management are the managers for four off Foreland Shipping RoRo vessels. As part of fleet upgrades, AW needed improvements in bilge water oil content levels to enable overboard discharge. With the existing arrangement, the onboard oil-water separators struggled to meet the 15ppm legislation requirement.

Unable to discharge overboard the vessels have been pumping the bilge water contents shoreside at great cost.

We were approached as filtration and monitoring bilge water specialists to find a solution to this problem.

Project Objectives:

• Enable AW RoRo fleet to reduce bilge water oil content below 15 ppm to allow overboard discharge.
• Ensure equipment specification and installation meet the approval of Lloyds classification society.

Project Description:

Before offering a solution we attended one of the RoRo vessels to conduct a survey of the installation and assess the performance of the existing oily water separator filtration system.

It was apparent that the existing system was unable to consistently meet the 15ppm oil content limits set by IMO legislation.

As UK agents for Wave International filtration systems we were able to propose and supply the class-approved Wavestream filtration assembly to post-filter the existing oily water separator output. With an enviable fitted list and success rate, the system would be able to reduce the ppm count to below the required 15 ppm limit.

We took responsibility for the design and installation of all associated pipework modifications, working with Lloyds classification society to ensure a class-approved installation.

All equipment was supplied and installed by us. The end result is a reduction in bilge water oil ppm from more than 15 ppm to less than 5 ppm whilst maintaining a discharge flow rate of up to 3.5 m³/hr.

Conclusion:

The filtration upgrade successfully reduced bilge water discharge oil ppm within legislation limits

The equipment and installation are Lloyds class-approved.

Hartland Point is now able to discharge bilge water overboard enabling significant cost savings for AW Ship Management

Case study with thanks to AW Ship Management and Foreland Shipping