IMO and USCG approval for low flow BWTS

The BIO-SEA L Easy-to-Fit system incorporates a completely new UV-reactor designed specifically to meet demand from the luxury yacht, expedition cruise and offshore vessel segments where ballast water pump flow rate capacities are often under 100m³/h.

Benoît Gillmann, BI0-UV Group chief executive and founder, said that the company was pleased to have received type approval from both the IMO and the US Coast. “This development really sets us apart from our competitors in the market. BIO-SEA L Easy-to-Fit is the smallest BWTS purpose-built for low flow rates,” he said.

Some ballast water treatment plants marketed as a low-flow rate system simply treat lower volumes using the same, high-power consuming, higher wattage lamps. BIO-SEA is based on a completely new 6kW UV lamp arrangement, sized to guarantee full compliance whilst treating flow rates of between 20m³/h and 90m³/h in USCG mode and up to 120m³/h in IMO mode.

A key change is the UV lamp and casing materials used in the new system. One 6kW lamp can treat ballast water flows of up to 30m³ and a further one or two lamps can be added to double and triple the flow rate.

With a footprint starting at 1.36m², the BIO-SEA L skid can also be split into two parts simplifying installation and integration and making it suitable for retrofit projects.