Mercury ion adsorbent preparation method

An adsorbent and mercury ion technology, applied in the field of preparation of mercury ion adsorbents, can solve problems such as mercury ion pollution, and achieve the effects of simple and easy process steps, strong acid resistance and strong stability
CN106925244AInactive Publication Date: 2017-07-07NORTHEASTERN UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHEASTERN UNIV
Publication Date
2017-07-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the technical field of adsorption of mercury ions in water, in particular to a mercury ion adsorbent preparation method. Firstly, through the effect of a KH-550 coupling agent and diatomite surface rich hydroxyl, upper active functional group-NH2 is modified by diatomite, by controlling the mass ratio of the diatomite to the coupling agent, a series of modified compounds are obtained, through an infrared spectrum and TG analysis, and the mass ratio with a high modification content is obtained; then, the diatomite modified by NH2 is connected with chitosan by using glutaraldehyde as a bridge, and by controlling the mass ratio of the modified diatomite to the chitosan to the glutaraldehyde, a functional mercury ion adsorbent is obtained. Compared with previous adsorbent physical blending, the adsorbent is rich in required material, simple in preparation process and more stable and has strong acid resistant and alkali-resistant capacities.
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Description

technical field

[0001] The invention relates to the technical field of mercury ion adsorption in water bodies, in particular to a preparation method of a mercury ion adsorbent. Background technique

[0002] Due to the development of modern industry, a large number of pollutants containing heavy metals have entered the water environment. Heavy metals have the characteristics of latent, refractory, and easy accumulation. They are easy to accumulate in organisms, and can enter the human body through the food chain and eventually harm Human health not only causes major economic losses, but also has a major impact on ecosystems and humans. Among heavy metal pollution, mercury ion water pollution is more prominent. Today, water is an important and rare resource, so how to solve the surface water and groundwater polluted by mercury ions is our top priority.

[0003] The treatment methods of mercury ion wastewater usually include chemical precipitation method, ion exchange method, ...

Claims

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