Engineering perspective of electrochlorination system for ballast water treatment using carbon dioxide

Joo, Jiyong; Park, Dong hyun; Rhee, Taejin; Lee, Ji hyoung

doi:10.5916/jamet.2022.46.3.150

Cited by 4 publications

(1 citation statement)

References 8 publications

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“…The El-Chem systems use El-Chem reactors to produce disinfectants, such as chlorine (Cl2) gas and hypochlorous acid (HOCl) from seawater. In some systems, a portion of the main ballast stream is passed through electrolysis cells to produce a disinfectant containing high amounts of chlorine species and then injected into the entire ballast stream [22][23][24], while in other systems, the entire ballast stream is subjected to electrochemical treatment to produce a lower concentration of chlorine species sufficient to achieve disinfection [25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of ballast water treatment systems from the perspective of expert seafarers' ship experiences

Yilmaz,

Bilgin Güney

2023

Brodogradnja

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Until recently, the selection of ballast water treatment (BWT) systems was based on a predetermined set of criteria that did not include evaluations for system utilization due to lack of experience. The experience-building phase for the systems began, especially with the entry of the Ballast Water Management Convention into force. For effective assessment and decision-making, the evaluations of expert seafarers responsible for using ballast water treatment systems on-board ships are of paramount importance. This study was completed by evaluating the experience and evaluations of 50 expert seafarers (24 deck personnel and 26 engine personnel) working in a Turkish maritime company in three phases to contribute to the decision-making and system evaluation processes: 1- The failure reports written by the ship personnel of the maritime company were examined, and bilateral interviews with expert seafarers working on these tankers were held; 2- an online questionnaire was prepared and presented to seafarers; 3Analytic hierarchy process (AHP) was used to obtain a common perspective of the seafarers. In this study's first phase, 'ideal system characteristics' were determined. Based on these characteristics, an online questionnaire was prepared in the second phase of this study and presented to seafarers. In the third phase, a set of six criteria was developed, and the Analytic Hierarchy Process (AHP) was used to obtain the common perspective of 50 participants. Pairwise comparisons revealed that ‘Rare alarms and malfunctions’ was the most important criterion from the perspective of all seafarers and UV-type BWTSs were 1.76 times more preferable than the electrochemical (El-Chem) type BWTSs as a common approach.

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Section: Introductionmentioning

confidence: 99%

Evaluation of ballast water treatment systems from the perspective of expert seafarers' ship experiences

Yilmaz,

Bilgin Güney

2023

Brodogradnja

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Ternary layered double hydroxide oxygen evolution reaction electrocatalyst for anion exchange membrane alkaline seawater electrolysis

Park

Jeong

Jang

et al. 2022

Journal of Energy Chemistry

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Ballast Water Problem: Current Status and Expected Challenges

Güney

2022

Marine Science and Technology Bulletin

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Transporting non-native species in ballast tanks has been a major challenge over the years. The number of surviving species in the host environment is quite small compared to those of all introduced. However, even a single species can cause great harm to the environment, economy, and public health. Ballast water treatment issues are difficult and complex as the performance of the treatment is highly affected by the variable characteristics of the seawater. In addition, targeted organisms are in a wide spectrum. The International Convention on the Control and Management of Ship Ballast Water and Sediments requires ships to manage ballast water with a Type Approved System in compliance with the Ballast water discharge standard defined in the Convention. The Ballast Water Management Systems Approval (G8) Guide was revised in 2016 and accepted as the BWMS Code (Ballast Water Management Systems Approval Code) as the mandatory regime in 2018. According to the implementation schedule of this mandatory approval regime, the ballast water management system installed on or after 28 October 2020 must be type-approved according to the IMO’s revised G8 requirements. Several systems use different methods with their limitations. However, the ballast water problem does not seem to end only with the installation of the systems on ships. Although substantial international progress has been made in ballast water management (both technically and regulatory), there are still several issues regarding effectiveness, compliance monitoring, and the environment.

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Engineering perspective of electrochlorination system for ballast water treatment using carbon dioxide

Cited by 4 publications

References 8 publications

Evaluation of ballast water treatment systems from the perspective of expert seafarers' ship experiences

Evaluation of ballast water treatment systems from the perspective of expert seafarers' ship experiences

Ternary layered double hydroxide oxygen evolution reaction electrocatalyst for anion exchange membrane alkaline seawater electrolysis

Ballast Water Problem: Current Status and Expected Challenges

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