한국정보통신학회:학술대회논문집 (Proceedings of the Korean Institute of Information and Commucation Sciences Conference)
- 한국해양정보통신학회 2004년도 SMICS 2004 International Symposium on Maritime and Communication Sciences
- /
- Pages.43-48
- /
- 2004
Effect of Hydroxyl Radicals on Photosynthesis Pigments of Phytoplankton in Ship's Ballast Water of 20t/h
- Bai, Xiyao (Environmental Engineering Institute, Dalian Maritime University) ;
- Bai, Mindong (Environmental Engineering Institute, Dalian Maritime University) ;
- Zhang, Zhitao (Environmental Engineering Institute, Dalian Maritime University) ;
- Bai, Mindi (Environmental Engineering Institute, Dalian Maritime University) ;
- Yang, Bo (Environmental Engineering Institute, Dalian Maritime University)
- 발행 : 2004.05.01
초록
A pilot-scale system of 20t/h for the treatment of ship's ballast water and the setup of dissolved hydroxyl radical was introduced in this paper. With this experimental system, the kill efficiencies of bacteria, mono-algae, protozoan reach 100% within 2.67s when dissolved OHㆍconcentration is 0.6mg/L. At the same time, the effect of hydroxyl radicals on the photosynthesis pigments of phytoplankton was done. The results indicate that the contents of chi-a, chl-b, chl-c and carotenoid are decreased to 35~64% within 8.0s further to the lowest limit of test after 5 minutes. When dissolved OHㆍratio concentration is 0.68mg/L, the attenuation efficiencies of photosynthesis pigment are 100%. Therefore the invasive marine species can be killed in the process of the inputting and discharge ship's ballast water.
키워드