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An in-situ tangential flow ultrafiltration device for groundwater colloids

A tangential flow ultrafiltration, groundwater technology, applied in ultrafiltration, osmotic/dialysis water/sewage treatment, etc., can solve problems such as affecting the colloidal characteristics of groundwater, extend ultrafiltration path, improve ultrafiltration efficiency, and improve separation efficiency Effect

Inactive Publication Date: 2021-03-02
63653 FORCES PLA
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  • Claims
  • Application Information

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Problems solved by technology

However, if the groundwater is sampled to the surface and the colloids are separated by a tangential flow ultrafiltration device, the composition characteristics of the colloids will change due to changes in environmental pressure and atmosphere, which will affect the understanding of the characteristics of the colloids in the groundwater

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  • An in-situ tangential flow ultrafiltration device for groundwater colloids
  • An in-situ tangential flow ultrafiltration device for groundwater colloids
  • An in-situ tangential flow ultrafiltration device for groundwater colloids

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Embodiment Construction

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0017] see Figure 1~4 , in the embodiment of the present utility model, a groundwater colloid in-situ tangential flow ultrafiltration device includes an ultrafiltration unit 1, a prefiltration unit 2, a sampling unit 3 and a control unit, and the control unit is used to adjust the inert gas to drive , the ground hydrocolloid sample enters the sampling unit 3, the sampling unit 3 is used to obtain the ground hydrocolloid sample...

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Abstract

The invention discloses an in-situ tangential flow ultrafiltration device for groundwater colloids, including an ultrafiltration unit, a prefiltration unit, a sampling unit and a control unit. The control unit uses inert gas as a drive to drive groundwater colloid samples into the sampling unit, and controls The unit is mainly used to program control the opening and closing time of the holding bottle, and set the N in the holding bottle according to the sampling depth. 2 The device designed a "bamboo strip" tangential flow ultrafiltration unit and assembled it with the groundwater sampler. The inert gas pressure was used to drive the water sample into the tangential flow ultrafiltration unit and separate the colloids in it. The separated colloids can be taken out for laboratory analysis, which solves the problem that the separated colloids are easily affected by the environment after the groundwater is taken out. The device of the invention can be widely used in the sampling and separation of underground water colloids, and provides a reliable technical approach for research on the impact of colloids on the migration of underground pollutants in the field of environmental safety.

Description

technical field [0001] The utility model relates to the field of environment and geotechnical engineering, in particular to an in-situ tangential flow ultrafiltration device for underground water colloid. Background technique [0002] Groundwater colloid is a general term for various suspended solid particles in groundwater, generally referring to suspended particles with a size of 1 nm to 1000 nm. Groundwater colloids can adsorb and carry heavy metal elements and radioactive nuclides in water, making pollutants flow with colloidal particles in the groundwater medium, which has an important impact on the migration of pollutants in groundwater. In order to study the influence of groundwater colloids on the migration of pollutants, it is first necessary to accurately characterize the colloids in water, including colloid content, composition, and particle size distribution, and the primary task of characterization is to enrich and separate trace colloids in water. Tangential f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D61/18B01D61/22B01D61/14C02F1/44
Inventor 不公告发明人
Owner 63653 FORCES PLA
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