Your browser doesn't support javascript.
loading
Enhancing the efficacy of electrolytic chlorination for ballast water treatment by adding carbon dioxide.
Cha, Hyung-Gon; Seo, Min-Ho; Lee, Heon-Young; Lee, Ji-Hyun; Lee, Dong-Sup; Shin, Kyoungsoon; Choi, Keun-Hyung.
Afiliación
  • Cha HG; South Sea Research Institute, Korea Institute of Ocean Science and Technology, 41 Jangmok-1gil, Jangmok-myun, Geoje-si 656-834, Republic of Korea; Department of Oceanography, Busan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 609-735, Republic of Korea.
  • Seo MH; South Sea Research Institute, Korea Institute of Ocean Science and Technology, 41 Jangmok-1gil, Jangmok-myun, Geoje-si 656-834, Republic of Korea.
  • Lee HY; New Water Tech Co. Ltd., Unit 204 Sanhak-Kwan, Dongkuk St. 32, Ilsan-donggu, Goyang-si 410-820, Republic of Korea.
  • Lee JH; Korea Testing & Research Institute, 411 Daun-dong Jung-gu, Ulsan 681-802, Republic of Korea.
  • Lee DS; Department of Oceanography, Busan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 609-735, Republic of Korea.
  • Shin K; South Sea Research Institute, Korea Institute of Ocean Science and Technology, 41 Jangmok-1gil, Jangmok-myun, Geoje-si 656-834, Republic of Korea.
  • Choi KH; Department of Oceanography and Ocean Environmental Sciences, Chungnam National University, 99 Daehak-ro, Yusung-gu, Daejeon 305-764, Republic of Korea. Electronic address: keunhchoi@cnu.ac.kr.
Mar Pollut Bull ; 95(1): 315-23, 2015 Jun 15.
Article en En | MEDLINE | ID: mdl-25841887
We examined the synergistic effects of CO2 injection on electro-chlorination in disinfection of plankton and bacteria in simulated ballast water. Chlorination was performed at dosages of 4 and 6ppm with and without CO2 injection on electro-chlorination. Testing was performed in both seawater and brackish water quality as defined by IMO G8 guidelines. CO2 injection notably decreased from the control the number of Artemia franciscana, a brine shrimp, surviving during a 5-day post-treatment incubation (1.8 and 2.3 log10 reduction in seawater and brackish water, respectively at 6ppm TRO+CO2) compared with water electro-chlorinated only (1.2 and 1.3 log10 reduction in seawater and brackish water, respectively at 6ppm TRO). The phytoplankton Tetraselmis suecica, was completely disinfected with no live cell found at >4ppm TRO with and without CO2 addition. The effects of CO2 addition on heterotrophic bacterial growth was not different from electro-chlorination only. Total residual oxidant concentration (TRO) more rapidly declined in electro-chlorination of both marine and brackish waters compared to chlorine+CO2 treated waters, with significantly higher amount of TRO being left in waters treated with the CO2 addition. Total concentration of trihalomethanes (THMs) and haloacetic acids (HAAs) measured at day 0 in brackish water test were found to be 2- to 3-fold higher in 6ppm TRO+CO2-treated water than in 6ppm TRO treated water. The addition of CO2 to electro-chlorination may improve the efficiency of this sterilizing treatment of ballast water, yet the increased production of some disinfection byproducts needs further study.
Asunto(s)
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plancton / Dióxido de Carbono / Desinfección / Purificación del Agua / Halogenación Tipo de estudio: Evaluation_studies / Guideline Límite: Animals Idioma: En Revista: Mar Pollut Bull Año: 2015 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plancton / Dióxido de Carbono / Desinfección / Purificación del Agua / Halogenación Tipo de estudio: Evaluation_studies / Guideline Límite: Animals Idioma: En Revista: Mar Pollut Bull Año: 2015 Tipo del documento: Article Pais de publicación: Reino Unido