Report on Technologies and Research Outcomes ... - nowpap dinrac

Technologies and research outcomes related to treatment of marine litterTreatment cost for the waste FRP vesselThe treatment cost for the FRP vessel varies according to their anchoredlocation and its condition. For example, if the ship is located on an island oris severely damaged, it needs additional tugging fee to the port, where thetreatment facility can be easily accessed. Ships stranded on rocks or mud flatabsorbs most of its treatment cost from salvage. The cost in general, exceptin extreme case, considers this report to analyze the detail cost for eachtreatment steps. Table 1 shows the suggested cost for the each treatmentsteps in Korean won. Total treatment steps are classified as tugging, cutting,loading, transport, unloading, crushing, labor cost, fraction transport, and finalmelting. A ship, smaller than 2 tons is usually about the size of 7 meters x2.5 meters so that it can be transported without the first step, cutting. But if aship is larger than 2 tons, it should be cut before being transported by a truckwith a special precaution to not pollute around with small fractions and wasteoil.The ships cut into small fractions are usually incinerated with other debris andburied. But, due to the possibility of a subsidiary pollution from pulverizedglass fiber so that the melting method is strongly recommended. The meltingmethod solves the problem of scattering of glass fibers, and can also berecycled into other practical products. Though this method of treating the wastefrom FRP vessels is an environmentally friendly, the treatment cost is 1.5times higher than the ordinary incinerating method. However, considering thecleansing cost of the probable environmental pollution, the melting treatment isstill recommended for final proper disposal of the waste FRP vessel waste.Also, additional and more efficient government support for the owner of thewaste FRP ship may be considered. The transport cost occupies a largeportion of the total treatment cost as shown in Table 1. To reduce thetransport cost, on barge pretreatment system was suggested and it is estimatedthat the whole transport cost can be reduced by 15%. If the whole treatmentsystem become well established in nationwide, total cost for the treatment ofwaste FRP vessel is expected to get lower in future.31