在水下超声波清洗过程中,微塑料和生物制剂从防涂层中释放出来
Matthias Bork1, Pascal Guth1, Søren Kiil1
1CoaST, Department of Chemical and Biochemical Engineering, Technical University of Denmark, DTU, Building 229, 2800, Kgs. Lyngby, Denmark.
Marine pollution bulletin
|February 28, 2026
概括
抗涂料的超声波清洁可能会损坏表面,并释放有害的生物制剂和微塑料. 仔细选择清洁参数至关重要,以尽量减少船只维护对环境的污染.
科学领域:
- 海洋涂料技术的技术
- 环境科学环境科学
- 声学工程 声学工程
背景情况:
- 防涂层对于海事行业来说至关重要,以防止生物污染.
- 水下清洁用于维护这些涂层,但可能会导致环境污染.
- 超声波清洗对防涂层和随后的环境释放的影响尚未完全理解.
研究的目的:
- 为了研究超声波清洗对防涂层的影响.
- 在不同的清洗条件下量化生物杀菌剂,微塑料和铜的释放.
- 评估海上应用中的超声波清洁对环境的影响.
主要方法:
- 商业游艇的防涂层样本在实验室条件下老化.
- 样品经过超声波清洗,声压和探针距离变化.
- 测量了表面粗度,并量化了废水中释放的污染物 (杀菌剂,微塑料,铜).
主要成果:
- 激烈的超声波清洁造成了显著的涂层损伤,增加了表面粗性,并释放了微塑料和生物杀伤剂.
- 即使在较温和的清洁条件下,也会释放出微塑料和生物制剂,这表明存在固有的风险.
- 铜的释放量从0.3到10μg/cm2不等,颗粒质量释放量相当.
结论:
- 超声波清洗参数显著影响涂层完整性和污染物释放.
- 激烈的超声波清洁和温和的超声波清洁都可能导致环境污染.
- 有效的缓解需要在船只维护期间优化清洁参数和废水捕获.
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