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Evaluation efficacy of filtration + UV-C radiation for ballast water treatment at different salinity
Zhaowen He1, Muyang Xue2, Yanan Wang1
1College of Oceanography and Ecological Science, Shanghai Ocean University, Shanghai, 201306, China; Center for Water Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China.
Abstract:
In recent years, the issue of invasive alien species brought on by ballast water has drawn increasing attention, and advances in ballast water treatment technologies have been made. One of the most popular combined ballast water treatment technologies utilized in ballast water management systems globally is filtration + UV-C radiation. In this work, we compared the effectiveness of filtration + UV technology in treating plankton in ballast water with various salinity. The final biological density of ballast water treated by filtration + UV process with different salinity could meet the biological discharge standard required by D-2 standard. UV-C irradiation (It mainly acts on phytoplankton) is more sensitive to salinity than filtration (It mainly acts on phytoplankton).
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