Development and optimization of a highly effective and low energy intensive electro-disinfection system for ballast water treatment

K. G.Nadeeshani Nanayakkara, Yu Ming Zheng, J. Paul Chen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Biological invasions through ships' ballast water create threats to the environment and to the human health and thus, need to treat prior to the discharge. In this study, an innovative electro-disinfection reactor system is developed and optimized for disinfection of E. coli in ballast water to achieve the International Maritime Organization's (IMO) guideline, 250 CFU/100ml. Optimized hydraulic retention time (HRT) and current to achieve the guideline are 30 s and 0.3 A respectively. The energy consumption is 0.004 kWh/m 3. Electrochemically produced chlorine is found to be the major disinfectant agent in the system. Electro-disinfection is effective and low energy intensive, thus possesses the ability to improve and use as a technology for ballast water treatment.

Original languageEnglish
Title of host publicationAIChE100 - 2008 AIChE Annual Meeting, Conference Proceedings
StatePublished - 2008
Externally publishedYes
Event2008 AIChE Annual Meeting, AIChE 100 - Philadelphia, PA, United States
Duration: 16 Nov 200821 Nov 2008

Publication series

NameAIChE Annual Meeting, Conference Proceedings

Conference

Conference2008 AIChE Annual Meeting, AIChE 100
CountryUnited States
CityPhiladelphia, PA
Period16/11/0821/11/08

Keywords

  • Ballast water treatment
  • Chlorine
  • E. coli
  • Electro-disinfection
  • Optimization

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