海洋科学2025，Vol.49Issue(9)：99-107,9.DOI:10.11759/hykx20241212001
深海悬浮体原位时序抽滤采样装置设计及实验研究
Design and experimental study of an in situ sequential filtra-tion sampling device for deep-sea suspension
摘要
Abstract
The study of microorganisms under the dynamic change of the deep-sea environment requires numerous long-period time series samples.In this paper,a low-pollution extraction and sampling device based on a multifilter membrane capable of filtering seawater samples with an effective diameter of 60 mm 360 times is proposed for deep-sea suspension.Simultaneously,the multilayer filter membrane structure of the filter membrane cover,filter membrane,and filter membrane fixed layer is de-signed to reduce the contamination of non-sampling and sample storage sites.The mechanical structure and control system of the device are designed.Water filtration test results showed that PES(Polyethersulfone,0.45 μm,1 μm)and PTFE(Polytetra-fluoroethylene,0.22 μm)had better water filtration performance.The sampling device completed various sampling actions in the deep-sea high-pressure simulation system,completed sampling tests at six stations in a 1500 m sea area of the South China Sea,and successfully obtained suspended samples in the methane leakage area,providing technical support for research on the carbon fixation,transport,and burial process in the submarine methane ecosystem.关键词
海洋观测/深海悬浮体/深海微生物/原位抽滤/多滤膜Key words
ocean observation/deep sea suspension/deep-sea microorganism/in situ filtration/multifilter membrane分类
海洋科学引用本文复制引用
金诗迪,张平萍,刘颖,陈家旺..深海悬浮体原位时序抽滤采样装置设计及实验研究[J].海洋科学,2025,49(9):99-107,9.基金项目
浙江大学仪器研制培育项目(YQZX-C202406) （YQZX-C202406）
国家自然科学基金项目(41977269)The Instrument Development and Incubation Program of Zhejiang University,No.YQZX-C202406 （41977269）
The National Natural Science Foundation of China,No.41977269 （）
