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primary topic: Laboratory tests on heat treatment of ballast water using engine waste heat

Laboratory tests on heat treatment of ballast water using engine waste heat
type: AcademicArticle
type: Article
abstract: Waste heat recovery from shipboard machineries could be a potential source for heat treatment of ballast water. Similar to a shipboard schematic arrangement, a laboratory-scale engine-heat exchanger set-up harvesting waste heat from jacket water and exhaust gases was erected to test the level of species’ mortalities. Mortalities were also assessed under experimental conditions for cultured and natural plankton communities at laboratory level. Effect of pump impellers on species’ mortalities were also tested. Exposures between 60°C and 70°C for 60 sec resulted in 80–100 mortalities. Mortalities due to pump impeller effects were observed in the range of 70–100 for zooplankton. On the laboratory-scale arrangement, >95 mortalities of phytoplankton, zooplankton and bacteria were recorded. It was demonstrated that the temperature of tropical sea waters used as secondary coolant can be raised to cause species’ mortalities, employing engine exhaust gases. The results also indicated that pump impeller effects will enhance species’ mortalities. The limitations of the shipboard application of this method would be the large ballast volumes, flow rates and time for treatment. © 2017 Informa UK Limited, trading as Taylor & Francis Group.
date: 2018
volume: 39
issue: 9
is part of: Environmental Technology (United Kingdom)
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ArticleEPrint
is part of: repository

Taylor and Francis Ltd.
type: Organization

Environmental Technology (United Kingdom)
type: Collection
issn: 09593330

Faizul Amri bin Adnan
type: Person
given name: Faizul Amri bin
family name: Adnan

Kho King Koh
type: Person
given name: Kho King
family name: Koh

Hing Lee Siang
type: Person
given name: Hing
family name: Lee Siang

Omar Yaakob
type: Person
given name: Omar
family name: Yaakob

Rajoo Balaji
type: Person
given name: Rajoo
family name: Balaji

Badruzzaman bin Ahmad
type: Person
given name: Badruzzaman bin
family name: Ahmad

W.B. Wan Nik
type: Person
given name: W.B.
family name: Wan Nik

Nasrudin bin Ismail
type: Person
given name: Nasrudin bin
family name: Ismail

Mohd Arif bin Ismail
type: Person
given name: Mohd Arif bin
family name: Ismail

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primary topic: Laboratory tests on heat treatment of ballast water using engine waste heat