Department of Integrated Biological Science, Pusan National University, Busan 46241, Republic of Korea.
Nuclear Science Research Institute, Pusan National University, Busan, Republic of Korea.
Mar Pollut Bull. 2018 Aug;133:734-740. doi: 10.1016/j.marpolbul.2018.06.025. Epub 2018 Jun 22.
Ballast water is essential for maintaining the balance and integrity of a ship. However, exchanging ballast water resulted in discharging water of different origins in vessel recipient ports, and this may have caused ecosystem disturbance or aquatic pollution. The ballast water management (BWM) system is essential for the purification and disinfection of the ballast water that is taken up. Because current BWM systems widely use biocides for the treatment of aquatic organisms, the biocides may result in unintended toxicity of the discharged ballast water. In this study, we suggested thymol and carvacrol as chemical biocides for BWM systems and investigated their effectiveness using Artemia salina and Escherichia coli. Thymol and carvacrol showed biocidal effects in our study. A combination of these substances showed a synergistic increase in the biocidal effects. Moreover, carvacrol naturally degrades after disinfection, which indicates that natural substances may be promising candidates to increase the efficacy and reduce unwanted side effects of the BWM system.
压载水对于维持船舶的平衡和完整性至关重要。然而，交换压载水会导致在船舶接收港口排放来自不同来源的水，这可能会导致生态系统干扰或水环境污染。压载水管理 (BWM) 系统对于净化和消毒所取的压载水至关重要。由于当前的 BWM 系统广泛使用杀生剂来处理水生生物，这些杀生剂可能会导致排放的压载水产生非预期的毒性。在本研究中，我们建议使用百里酚和香芹酚作为 BWM 系统的化学杀生剂，并使用卤虫和大肠杆菌来研究它们的效果。在我们的研究中，百里酚和香芹酚表现出杀菌作用。这些物质的组合显示出协同增加杀菌效果。此外，香芹酚在消毒后自然降解，这表明天然物质可能是提高 BWM 系统功效并减少不必要副作用的有前途的候选物。
