Technical feasibility study of an onshore ballast water treatment system

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 m 3 $h -1 . Technical feasibilities of MPCF&UV system were evaluated in three areas: removal efficiencies of indicator organism and oceanic bacteria, perdurability of a ceramic filter, and application on native seawater. The results showed that no indicator organism (Dunaliella) or oceanic bacteria was detected after treatment of 20 L MPCF and UV radiation at 1.3Â 10 4 μW$s$cm -2 . A 20 L ceramic filter can run continuously for 5.3 h at the flow rate of 15 m 3 $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 m 3 $h -1 by 80 L MPCF and UV radiation at 1.3Â 10 4 μW$s$cm -2 .

Onshore Reception Facilities for ballast water

“…Option (2) has been approached in several scientific studies with no practical application (David and Gollasch, 2014) (McMullin et al, 2008) (Liu et al, 2011). This treatment alternative was first reported in the Australian Quarantine and Inspection Service (AQIS) in 1993, and presented at the National Research Council in a book entitled "Stemming the tide: controlling introductions of nonindigenous species by ships' ballast water".…”