Kpi (Key Performance Indicators) Application on Ballast Water Treatment System Selection

Abstract

SummaryEvery day, more than 7,000 different marine species are transferred to different ecosystems via ballast water in ships. The introduction of invasive species can cause problems for native species. After realizing the serious potential problems associated with the transport of organisms in ballast water, national and international regulations were developed. In 2004, the International Maritime Organization introduced the International Convention for the Control and Management of Ships' Ballast Water and Sediments. With these regulations, the problems caused by ballast water have attracted attention and many companies have started to research and develop technologies for the management of ballast water. Today, there are hundreds of different systems for ballast-water treatment, and the selection of the most suitable system for a specific vessel is an increasingly important issue as the Convention nears enforcement on September 8, 2017. The goal of this study is to demonstrate that the application of key performance indicators (KPIs) to the selection of a ballast-water treatment system (BWTS) leads to a very useful tool with which shipyards can compare BWTSs. This allows them to make better choices and to designate the most suitable system for each of their ships. In this study, we examine two types of vessel from a shipyard in Istanbul, Turkey. They have different ballast-water capacities and equipment, and the most suitable system for each is selected by using the KPI method.

500-1500 m3/h Balast Basma Kapasiteli Gemiler için Analitik Hiyerarşi Prosesi ve Bulanık Analitik Hiyerarşi Prosesi Yöntemleri ile Balast Suyu Arıtma Sistemi Seçimi

“…İncelemelerde tek bir alternatifin farklı kombine sistemlerini ele alan çalışmada, ultraviyole yöntemi ile balast suyu arıtma sisteminin üç farklı tipi incelenerek o an tersanede bulunan iki farklı gemi tipi için Temel Performans Göstergeleri (KPI) tekniğini kullanılarak karşılaştırılmışlardır. Yapılan analiz sonucunda KPI yöntemi ile donatanların, gemileri için en uygun sistemi seçebileceklerini belirtmişlerdir (Yonsel ve Vural, 2017).…”

Overview and Comparison of the IMO and the US Maritime Administration Ballast Water Management Regulations

“…It is important to note that individual US States are entitled to develop and implement their own BWM provisions under CWA. Therefore, some of them, for example California and New York State, have imposed even stricter requirements and standards [70].…”

“…Regarding the implementation of the discharge standard numerical limits in the US, in 2009, USCG initially proposed a phase two standard that was 100 times more stringent than the IMO D-2 standard. In addition, after completing the latest "practicability review" in 2016, it was concluded that at that point, stringent standard implementation as well as the assessment of available technologies to meet standard was not technically achievable and therefore its implementation was postponed [43,54,70]. However, the EPA does not have a practicability review process, so when the VGP 2013 expires, the EPA must reissue the permit in compliance with the CWA to include the "Best Available Technology" and water quality analyses review [43].…”

Key Ballast Water Management Regulations With a View on Ballast Water Management Systems Type Approval Process

“…-Flow-through method: pumping through and overflowing replacement BW into ballast tanks three times the volume of each BW tank. Pumping through less than three times the volume may be accepted provided the ship can demonstrate that at least 95% volumetric exchange is met [25,26]. -Dilution method: filling replacement BW at least three times the tank volume is through the top of the ballast tanks and maintaining a constant level throughout operation with simultaneous discharge from the bottom at the same flow rate.…”