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A study on treatment efficacy of ballast water treatment system applying filtration + membrane
Kairui Dong1, Wenjun Wu2, Jianwu Chen1
1College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China; Centre for Research on the Ecological Security of Ports and Shipping, Shanghai Ocean University, Shanghai 201306, China.
Abstract:
The efficacy of a BWMS with filtration + membrane separation + deoxygenation technology in treating ballast water was investigated under marine operational circumstances in five shipboard tests. The shipboard tests were carried out between August 2020 and March 2021 onboard a bulk carrier JIN HAI HUA, which sailed between Mawei, Qinhuangdao and Caofeidian in China throughout spring, summer, and fall season. The discharge results in all five tests met the D-2 standard in IMO BWMS Code, with the shortest holding time of less than three days. The BWMS does not involve application of chemicals or generation of by-products, and is considered to be an appropriate choice for certain types of ships.
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