In situ deposit-aqueous interface water-quality sampler and sampling method thereof

A water quality sampler and water quality sampling technology, applied in the direction of sampling devices, etc., to achieve the effect of convenient use and installation, convenient operation and strong operability
CN101608982AInactive Publication Date: 2009-12-23CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
CHINESE RES ACAD OF ENVIRONMENTAL SCI
Publication Date
2009-12-23
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to an in situ deposit-aqueous interface water-quality sampler and a sampling method thereof. The sampler adopts a group of sampling plates and a group of protecting plates to clamp osmosis membranes and fix the osmosis membranes together by screws; the sampling plate is divided into an interstitial water sampling section of deposit and an overlying water sampling section of an interface in longitudinal direction; a plurality of transverse grooves which have longitudinal intervals of 2mm to 3mm are arranged on the interstitial water sampling section of deposit and the overlying water sampling section of the interface; the volume of the groove is between 2000microlitre to 4000microlitre; an interfacial limiting plate is arranged between the interstitial water sampling section of deposit and the overlying water sampling section of the interface; the sampler realizes in situ collection of deposit-aqueous interface water-quality samples, adopts an interfacial limiting device, and can accurately determine the deposit-aqueous interface; the sampler is equipped with a weight drop and a retrieve rope, can be used in aquatic deeper lakes, and has operability, site throwing and convenient retrieving; and the volume of each layer of water-quality sampling room reaches to 4000microlitre and can complete more index analysis simultaneously.
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Description

technical field

[0001] The invention relates to the analysis of pollutants in the lake sediment and the water overlying the sediment interface, in particular to an in-situ sediment-water interface water quality sampler and a sampling method thereof. Background technique

[0002] At present, shallow lakes in my country are seriously polluted, and sediment is an important source of pollution. Especially with the urbanization process of the watershed and the development of industry and agriculture, excessive pollutants accumulate in the sediments. Under certain conditions, a large amount of pollutants accumulated in the sediments will seriously Affect the quality of the overlying water of the lake, resulting in continuous high pollution of the lake. For example, the release of nitrogen and phosphorus from sediments in shallow lakes can cause continuous eutrophication of lakes, seriously affect the governance effect, and threaten the safety of lake ecosystems and water quality....

Claims

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