在船舶产生的灰色水中微塑料的量化及其对波罗的海污染的贡献
J T Mujingni1, E Ytreberg2, I-M Hassellöv1
1Department of Mechanics and Maritime Sciences, Chalmers University of Technology, Gothenburg, Sweden.
Environmental pollution (Barking, Essex : 1987)
|February 13, 2026
概括
船舶产生的灰水是波罗的海微塑料 (MP) 的主要来源,洗衣废水含有MP度最高. 有效的缓解需要在船上系统中的源头阻止MP.
科学领域:
- 海洋污染 海洋污染
- 环境化学环境化学
- 污水处理 污水处理 污水处理
背景情况:
- 波罗的海受到陆地和海上活动造成的各种污染物严重污染.
- 船舶产生的灰色水 (GW) 是海洋微塑料 (MP) 污染的重要但未被充分研究的来源.
研究的目的:
- 量化船舶产生的灰色水中的微塑料度和负载.
- 评估船舶GW对波罗的海海洋微塑料污染的贡献.
- 评估废水处理对微塑料去除的有效性.
主要方法:
- 来自五艘船的八个灰色水流的采样和分析.
- 15种微塑料聚合物类型的识别和表征.
- 来自波罗的海舰队的年度微塑料负载的估计.
主要成果:
- 微塑料度的差异很大,从约38,000 MP/m3 (住宿-洗衣间) 到约602,000 MP/m3 (洗衣间) 的流量.
- 聚乙烯二甲 (PET) 是主要的聚合物 (58%),在所有样本中发现.
- 据估计,RoPax船只的每年MP载荷在1.240亿至7.59亿颗粒之间,每年多达1.1万亿MP可能会直接释放到海中.
结论:
- 船舶产生的灰色水是波罗的海微塑料的大量,未经研究的来源,特别是来自客船的微塑料.
- 虽然先进的处理可以去除大多数MP,但由于大量的废水,残留排放仍然很大.
- 缓解策略必须优先考虑减少船上洗衣室,厨房和住宿业务的来源.
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