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Preparation method of water sampling sponge

A sponge and water body technology, applied in chemical instruments and methods, water pollutants, sampling devices, etc., can solve the problems of transportation weight, inconvenient water body sampling, and increased sampling cost, so as to enhance sampling capacity, improve sampling accuracy and Sampling efficiency, effect of improving sampling adsorption quality and adsorption efficiency

Inactive Publication Date: 2017-05-17
宁波市胜源技术转移有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) Industrial wastewater discharged without treatment;
[0007] (2) Domestic sewage discharged without treatment;
[0008] (3) Farmland sewage caused by extensive use of chemical fertilizers, pesticides, and herbicides;
[0011] (6) Mine sewage is produced due to over-exploitation
Water body pollution sampling involves the monitoring of water quality and water body health status, while the existing water body sampling is to directly fill some samples with sampling bottles when sampling in small batches, and then transport them to testing equipment for testing and analysis. In the first process, the water in the sample occupies most of the transport weight; and in the case of large-scale long-distance long-term sampling, special sampling pipelines and pumping stations will be established, which makes water sampling extremely inconvenient and significantly increases sampling costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0029] The preparation method of the atmospheric sampling sponge in this embodiment at least includes foaming the raw material of the sponge body, and making the molecular sieve powder adhere and solidify on the surface of the foamed sponge body. The molecular sieve powder can be sprayed into the mold before or after foaming, so that the molecular sieve powder and the sponge have a good combination, and then the product can be obtained after post-processing.

[0030] Different from the above-mentioned embodiments, the molecular sieve powder is evenly dispersed and consolidated on the surface of the pore structure of the sponge body, including but not limited to the situation of being dispersed on all or part of the surface of the pore structure of the sponge body.

[0031] Different from the above examples, the mass of molecular sieve powder attached to the sponge body is 0.1% of the mass of the sponge body (the ratio of the mass of molecular sieve powder to the mass of the spo...

specific Embodiment 1

[0037] In this embodiment, polyether 161 raw material is selected, the sponge aperture is 2 mm, and the powder particle size is 300 microns. Potassium A (3A) molecular sieve powder is formed into a sampling sponge sample through foam molding. 0.25% of body mass. Sampling target normal inland water lead ions, including free ions and complex ions. After soaking the sponge in the sampling box for 1 hour, take it out, gently squeeze it to remove the water, bring it back, and test it after removing it. The water sample directly carried by the sampling bottle is used as a comparison standard.

[0038] 10 sponge samples were sampled at sampling points in Hainan, and the average variance of the sampling volume was 4. Compared with the standard monitoring value, the sampling accuracy was 98%.

[0039] 10 sponge samples were sampled at the Nantong sampling point, and the average variance of the sampling volume was 6. Compared with the standard monitoring value, the sampling accuracy wa...

specific Embodiment 2

[0044] In this embodiment, polyether 4110 raw materials are selected, the sponge aperture is 3 mm, and the powder particle size is 300 microns. Potassium A (3A) molecular sieve powder is foamed and formed into a sampling sponge sample. The adhesion quality of the molecular sieve powder on the sample is about 0.75% of body mass. Free cadmium ions in the normal inland water body of the sampling target. After soaking the sponge in the sampling box for 1 hour, take it out, gently squeeze it to remove the water, bring it back, and test it after removing it. The water sample directly carried by the sampling bottle is used as a comparison standard.

[0045] 10 sponge samples were sampled at sampling points in Hainan, and the average variance of the sampling volume was 4.4. Compared with the standard monitoring value, the sampling accuracy was 97%.

[0046] 10 sponge samples were sampled at the Nantong sampling point, and the average variance of the sampling volume was 6.2. Compared ...

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Abstract

The invention discloses a preparation method of water sampling sponge. The method at least comprises steps as follows: a raw material of a main sponge body is foamed and molecular sieve powder is attached and fixed to the surface of the main sponge body obtained through foaming. According to the scheme, a molecular sieve and the main sponge body are organically combined, so that the water sampling detection difficulty is reduced, water samples are not required to be carried directly, the carrying portability is improved, and the water sampling and transporting convenience is improved.

Description

technical field [0001] The invention relates to a preparation method of a water pollution sampling medium, in particular to a preparation method of a water body sampling sponge. Background technique [0002] water (H 2 O) is an inorganic substance composed of hydrogen and oxygen. It is a colorless, odorless, transparent liquid at normal temperature and pressure, including natural water (rivers, lakes, atmospheric water, sea water, groundwater, etc.), artificial water (through A chemical reaction combines hydrogen and oxygen atoms to form water). Water is one of the most common substances, an important resource for the survival of all life including humans, and the most important component of living organisms. Water has played an important role in the evolution of life. Water is an indispensable part of people's life and production, and although water is a renewable resource, its available quantity in a specific period of time is limited. [0003] Human activities will di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28G01N1/10C02F101/20
CPCC02F1/28C02F2101/20G01N1/10
Inventor 张广飞
Owner 宁波市胜源技术转移有限公司
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