Technical feasibility study of an onshore ballast water treatment system |
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Authors: | Shengjie Liu Manxia Zhang Xiang Li Xiaojia Tang Lingling Zhang Yimin Zhu and Chengyu Yuan |
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Institution: | (1) Sezione Tecnologie Marine, CNR, Istituto di Scienze Marine, Via De Marini 6, 16149 Genova, Italy;(2) Sez. Talassografico A. Cerruti, CNR, Istituto per l’Ambiente Marino Costiero, Via Roma 3, 74100 Taranto, Italy;(3) Dipartimento di Biologia, Viale Benedetto XV, Universit? di Genova, 5–16132 Genova, Italy |
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Abstract: | To fulfill the requirements of Guidelines for approval of ballast water management system (G8), a set of onshore ballast water treatment equipment utilizing micro-pore ceramic filtration (MPCF) and UV radiation
(MPCF&UV) system was designed and set up with a maximum flow rate of 80 m3·h−1. Technical feasibilities of MPCF&UV system were evaluated in three areas: removal efficiencies of indicator organism and
oceanic bacteria, perdurability of a ceramic filter, and application on native seawater. The results showed that no indicator
organism (Dunaliella) or oceanic bacteria was detected after treatment of 20 L MPCF and UV radiation at 1.3×104 μW·s·cm−2. A 20 L ceramic filter can run continuously for 5.3 h at the flow rate of 15 m3·h−1 before its pressure drop up to 0.195 MPa. The removal percentage of total plankton amounts were 91.9% at a flow rate of 70
m3·h−1 by 80 L MPCF and UV radiation at 1.3×104 μW·s·cm−2. |
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