ERMA FIRST, the global BWTS leader, is bringing the world’s smallest and easiest to install ballast water treatment system to the international market through its acquisition of US firm oneTANK LLC, a subsidiary of US naval architecture and marine engineering firm Glosten.
oneTANK is a small scale innovative, low-cost, IMO Revised G8 Code and United States Coast Guard compliant system. Also, its mixing technology is developed and patented by U.S. Geological Survey.
The oneTANK system is a game-changer for smaller vessels struggling to comply with stringent ballast water regulations.
It is a simple, low cost and fully automated offering. This makes it ideal for smaller vessels that don’t ballast regularly and often have space restrictions, such as workboats, tugboats, fishing boats and superyachts as well as semi-subs and tanker aftpeak tanks. The fitting is fast, flexible and economical.
oneTANK treats ballast water within the vessel’s ballast tank and has no filters, ultra-violet lamps or electrolytic chlorine generators. Its footprint is only 600mm x 600mm, half the size of its nearest competitor. Its power consumption is similar to that of a household washing machine. With low-running costs and fully regulatory compliance, oneTANK provides a ballast water management solution which works in all water qualities and salinities.
The system uses an 8.25% or 12.5% sodium hypochlorite (bleach) and 30% sodium thiosulfate solution – readily available chemicals that can be purchased from suppliers worldwide. Application is practical for smaller vessels as a 20-litre container of 12.5% bleach will treat approximately 288 cubic meters of ballast water. For larger vessels, oneTANK can treat tanks as large as 4,000 cubic meters.
Seawater is automatically treated by applying and mixing the bulk chemicals in-tank, allowing users to treat on their own schedules, avoiding busy in-port times.
ONE ENVIRONMENT IN MIND
oneTANK been tested to demonstrate removal of viable aquatic invasive species, it also ensures that residual chemical levels are environmentally friendly.
The technology has undertaken significant testing for disinfection by-products in accordance with guidance from the International Maritime Organization.
A small, simple system is also a sustainable system. oneTANK uses no exotic materials, no filtration, no transformers or rectifiers. At the end of its life, the system is fully recyclable.