China’s Sunrui Marine Environment Engineering has received a Ballast Water Management System (BWMS) type approval certificate from the United States Coast Guard Marine Safety Center.
The fourth certificate was issued after a detailed review of the manufactures type approval application determined the system met the requirements of 46 CFR 162.060.
The Sunrui BalClor system incorporates a three step process consisting of filtering and electrolysis during uptake and neutralization at discharge. This approval covers fourteen models with maximum treatment rated capacities between 170m3/h and 8500m3/h.
In early December, the USCG awarded the first type approval certificate to Norwegian ballast water treatment (BWT) specialist Optimarin for its Optimarin Ballast System (OBS).
Later the same month, Swedish Alfa Laval Tumba AB and Norway-based OceanSaver AS received BWMS type approval certificates.
The Alfa Laval PureBallast 3 system incorporates four ultraviolet reactor sizes, which can be arranged either individually or in parallel to achieve treatment capacities ranging from 85m3/h to 3000m3/h.
The OceanSaver BWTS MKII incorporates an electro-chlorination, or electrodialysis, process to achieve treatment capacities ranging from 200m3/h to 7200m3/h.