A device for enriching trace polyvalent cations

Abstract

The invention discloses an enrichment device for trace multivalent cations. The enrichment device comprises a micron-grade main channel, wherein a first inlet which is used for connecting to-be-enriched stoste containing multivalent cations is formed in the micron-grade main channel; a first buffer pool is connected to the outlet end of the micron-grade main channel; a first anion exchange membrane is arranged on the inner wall of the micron-grade main channel; the outer end of the first anion exchange membrane is communicated with a second buffer pool; an area, corresponding to the first anion exchange membrane, of the micron-grade main channel, is a separation area; an upstream, relative to the first anion exchange membrane, of the micron-grade main channel, is a trace ion enriching area; a second inlet is also formed in the trace ion enriching area; a control valve for opening and closing the second inlet is arranged at the second inlet. The enrichment device disclosed by the invention has the advantage of low cost; in addition, the trace multivalent metal ions (such as Mg<2+>, Cu<2+>, Ca <2+> and Fe <3+>) in a water body can be efficiently enriched.

Description

Technical field

[0001] The invention belongs to the technical field of metal element detection, and specifically relates to a device for enriching trace multivalent metal ions. Background technique

[0002] In recent years, metal pollution has become a prominent environmental problem, and collective metal poisoning incidents have been reported continuously throughout the country, even threatening human survival. Especially in water bodies, the natural background content of polyvalent metals does not have obvious harm, but as the society’s population increases and the process of industrialization accelerates, a large amount of industrial wastewater and domestic sewage are discharged, especially when soluble polyvalent metals enter the water body. Drinking water, bioconcentration, and food chain have a series of toxic effects on organisms in water bodies, and ultimately endanger human health. There are many kinds of polyvalent metal ions in water bodies, and most of them are trace...

Examples

Embodiment Construction

[0018] The following examples are used to describe the present invention in detail, which are only used to further explain the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field can make some non-essential improvements and improvements to the present invention based on the content of the above-mentioned invention. Adjustment.

[0019] Such as figure 1 As shown, the enrichment device includes a micron-level main channel 1, the micron-level main channel is 100 ~ 10000 um in length and 10 ~ 100 um in width, and the micron-level main channel 1 is provided with a connection to be enriched containing multivalent cations. The first inlet 11 of the stock solution, the outlet end of the micron-scale main channel 1 is connected with a first buffer tank 12, and the inner wall of the micron-scale main channel is provided with a first anion exchange membrane 13, and the first anion exchange membrane 13 T...

Technical field

[0001] The invention belongs to the technical field of metal element detection, and specifically relates to a device for enriching trace multivalent metal ions. Background technique

[0002] In recent years, metal pollution has become a prominent environmental problem, and collective metal poisoning incidents have been reported continuously throughout the country, even threatening human survival. Especially in water bodies, the natural background content of polyvalent metals does not have obvious harm, but as the society’s population increases and the process of industrialization accelerates, a large amount of industrial wastewater and domestic sewage are discharged, especially when soluble polyvalent metals enter the water body. Drinking water, bioconcentration, and food chain have a series of toxic effects on organisms in water bodies, and ultimately endanger human health. There are many kinds of polyvalent metal ions in water bodies, and most of them are trace...

Examples

Embodiment Construction

[0018] The following examples are used to describe the present invention in detail, which are only used to further explain the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field can make some non-essential improvements and improvements to the present invention based on the content of the above-mentioned invention. Adjustment.

[0019] Such as figure 1 As shown, the enrichment device includes a micron-level main channel 1, the micron-level main channel is 100 ~ 10000 um in length and 10 ~ 100 um in width, and the micron-level main channel 1 is provided with a connection to be enriched containing multivalent cations. The first inlet 11 of the stock solution, the outlet end of the micron-scale main channel 1 is connected with a first buffer tank 12, and the inner wall of the micron-scale main channel is provided with a first anion exchange membrane 13, and the first anion exchange membrane 13 T...

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