Around the world, there are numerous examples of devastating marine wildlife caused by invasive marine species. Ballast water is one of the most important reasons why invasive marine species get the chance to get introduced to new marine environments as vessels carry them around the world in their ballast water tanks.
In 2004 the International Maritime Organization (IMO) therefore introduced the Ballast Water Code (BWC) to address the Control and Management of Ships’ Ballast Water and Sediments. Today there are many options available on the market for ballast water treatment systems (BWTS) however, integrating such a system onboard of a vessel in operation, isn’t always as straightforward as it seems and often requires modifications.
The Baltic Sea is a special area for the discharge of sewage into the sea in accordance with MARPOL Annex IV. In association with this, stricter discharge limits for sewage already apply since 1 June 2019 for newly built passenger ships while for existing passenger ships they have entered into force from 1 June 2021.
Under certain conditions, an extended transitional period ending on 1 June 2023 for single voyages of passenger ships into Russian territorial waters east of the 28°10´ longitude and back.
The stricter discharge limits for the special area can be achieved with the installation of advanced wastewater treatment plants (AWWTP). The discharge limits for these plants (phosphorus: max 1.0 mg/l or 80 percent reduction, nitrogen: max 20 mg/l or 70 percent reduction) are similar to those for land-based municipal treatment plants and significantly reduce the nutrient input into the Baltic Sea.
With an extensive track record, the SRC Group has become an expert in regard to the integration of such BWTS systems. We offer our customers design and installation services for BWTS to ensure that their vessels comply with international rules and regulations regarding ballast water management, including the aforementioned stricter discharge limits. SRC has worked on all types of vessels and we have experience with a large variety of BWT systems. Our services include the complete design of piping & electrical systems, workshop documentation, and installation & commissioning. As with every technically challenging project, our in-house 3D scanning service and pre-fabrication philosophy will be brought to the benefit of your project to allow for a smooth integration process onboard without surprises. Please find below a link to our presentation about ballast water treatment systems: https://src.ee/storage/SRC_BWTS%20retrofit%20RevA.pdf