Apparatus for acquisition of marine sediment porewater and on-line in-situ detection of gas in porewater, and control method thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
- Publication Date
- 2016-08-10
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Abstract
Description
technical field
[0001] The invention relates to the field of marine sediment pore water collection and detection, in particular to a marine sediment pore water collection and gas detection system that can collect pore water in situ, quickly and circularly, and can detect the gas composition and content in situ in the sediment pore water. An online in-situ detection device and a control method thereof. Background technique
[0002] There are two ways to collect marine sediment pore water. One is to collect the sediment first, and then extract the pore water in the laboratory by means of pressing, centrifugation and vacuum filtration extraction. This method will cause the dissolved gas in the pore water to escape, The decomposition of organic components and the oxidation of variable valence ions make it difficult to reflect the original composition and information of pore water; the other is in-situ pore water extraction. At present, the devices that can be extracted in situ ...