Sailing multi-channel membrane filtration suspended particle sampling system

Abstract

The invention discloses a sailing multi-channel membrane filtration suspended particle sampling system, relates to a suspended particle sampling device, and provides a sailing multi-channel membrane filtration suspended particle sampling system which can automatically perform operations of cleaning a system, extracting and conveying an original water sample, filtering the water sample quantitatively, collecting suspended particle samples and the like and achieve sailing continuous collection of the suspended particle samples. The system is provided with a water sampling pump, a flow-through cell, prefiltrating equipment, a constant flow pump, a shunt valve, a multi-channel switching valve, multi-channel filtrating equipment, a vacuum system, a control system and a computer. A water outletof the water sampling pump is connected with one end of the flow-through cell, and the other end of the flow-through cell is provided with an overflow port; and the prefiltrating equipment is arranged in the flow-through cell, an outlet of the prefiltrating equipment is connected with a water sample inlet of the constant flow pump, an outlet of the constant flow pump is connected with an inlet ofthe shunt valve and a filling opening of the multi-channel switching valve, a discharging opening of the multi-channel switching valve is connected with the filtrating equipment, the multi-channel switching valve is connected with the computer, and an outlet of the filtrating equipment is connected with the vacuum system.

Description

technical field [0001] The invention relates to a suspended particulate matter sampling device, in particular to a mobile multi-channel membrane filtration suspended particulate matter sampling system for marine environment monitoring. Background technique [0002] Suspended particulate matter refers to the particulate matter with a particle diameter of 0.45 μm or more that exists in the water body in a suspended state ([1] GOLDBERG ED, BAKER M, FOX D L. Microfiltration in ocean orgaphic research [J] Marine Research, 1952, 11: 194-204). Suspended particulate matter in water is an important medium for various pollutants in the water, and plays an important role in the migration and distribution of various pollutants in aquatic ecosystems ([2] KAVANAUGHM C, LECKIE J O. Particulates in water: advances in chemistry series [M]. Washington DC, USA: American Chemical Society, 1980: 189), which has an important impact on the bioavailability and final fate of pollutants. With the i...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a system that can automatically clean the system, extract and transport the original water sample, and quantitatively filter the water sample in view of the shortcomings of the existing suspended particle sampling device, such as cumbersome manual operation, low degree of automation, and long filtration cycle. and suspended particulate matter sample collection and other operations, to realize the mobile type multi-channel membrane filtration suspended particulate matter sampling system that continuously collects suspended particulate matter samples

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