Electro-disinfection of Ballast Water

This research validates electro-disinfection as a potential secondary ballast water treatment technology. Electricity applied to bacteria laden water produced bactericidal effects, reactive oxygen species and chlorine generation which annihilated bacteria. Evaluation of electro-disinfection experiments showed titanium electrodes had the maximum kill efficacy while disinfection with aluminum and stainless steel electrodes had lesser kill efficacy. A continuous flow electro-disinfection reactor was evaluated utilizing artificial brackish and fresh ballast water. Brackish water had a 100% bacteria kill efficiency utilizing titanium electrodes at a current density of 10 mA/cm2. Fresh water was augmented with the addition of salt to increase its electrical conductivity from 232 μS/cm to 873 μS/cm to ascertain 100% bacteria kill efficiency with titanium electrodes and a current density of 9.8 mA/cm2.

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Civil and Environmental Engineering

Year

2009

Author dc:creator

• McCraven, Elizabeth Kathleen

Contributors dc:contributor

• La Motta, Enrique J.
• McCorquodale, J. Alex
• Kura, Bhaskar

• electro-disinfection
• electrolysis
• bacteria kill efficacy
• ballast water
• electrical conductivity
• and destruction of pathogenic bacteria

Repository record dc:identifier

https://scholarworks.uno.edu/td/1095

OAI identifier oai:identifier

oai:scholarworks.uno.edu:td-2076