Two ballast water treatment systems have been approved by the US Coast Guard in October brining the total number of approved systems to 37.
The Coast Guard Marine Safety Center issued the 36th US Coast Guard Ballast Water Management System Type Approval Certificate to China-based Elite Marine Corporation’s seascape system after a detailed review of the manufacturer’s type approval application determined the system met the requirements of 46 CFR 162.060.
The treatment principle of the Seascape systems consists of filtration and UV treatment at intake and UV treatment at discharge. The approval covers models with maximum intake treatment rated capacities between 80 m3/h and 5,000 m3/h.
Operational limitations are
- Water Temperature: -2ºC to 40ºC
- Hold Time: Marine Water (>20 PSU): >24 hours
- Brackish and Fresh Water (<20 PSU): >48 hours
- Minimum UV Intensity (UVI) at 50% TRC: 680 W/m2
The system has not been approved for installation on US vessels or for installation in hazardous areas on foreign flagged ships.
The 37th type-approval certificate was issued to Japan-based Panasonic Environmental Systems for its ATPS-BLUEsys. The treatment principal of this system is electrolysis and the approval covers systems with capacities from 150 to 3,600 m3/h.
Operational Limitations are
- Salinity/Water Temperature: >5 PSU and >2ºC if operated at TRC and >1.5 PSU and >10ºC if operated at 60% of TRC
- Hold Time: >24 Hours Total Residual Oxidant (TRO): 12 mg/L
The Panasonic ATPS-BLUEsys BWMS meets the requirements of 46 CFR Subchapter F and J and may be installed on a US flag vessel but is not approved for installation in hazardous areas on any ship.
In addition to the new type approvals, the USCG has also received a type approval application from Kurita water Industries of Japan for its chemical injection system. There are five systems awaiting type approval by USCG along with three amendment applications for systems that have already been granted USCG type approval.