Hydrotalcite/cuprous oxide nanocomposite material and application thereof

A nano-composite material and cuprous oxide technology, applied in the field of water treatment, can solve the problems of increased cost, secondary pollution, complicated operation process, etc., and achieve the effects of low cost, convenient operation and high treatment efficiency
CN104226239AInactive Publication Date: 2014-12-24WUHAN INSTITUTE OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN INSTITUTE OF TECHNOLOGY
Publication Date
2014-12-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a hydrotalcite / cuprous oxide nanocomposite material and application thereof. Hydrotalcite is added into a mixed water solution prepared by copper acetate and sodium thiosulfate to be stirred, glucose is added into the mixed water solution to be evenly stirred, a sodium hydroxide solution is added under the ultrasonic stirring condition after standing, and the hydrotalcite / cuprous oxide nanocomposite material is obtained through centrifugation, washing and drying. The molar concentrations of the copper acetate and the sodium thiosulfate in the mixed water solution are 0.2-0.3mol / L and 0.4-0.6mol / L respectively. The hydrotalcite accounts for 25%-35% of total mass of the copper acetate and the sodium thiosulfate. The glucose accounts for 4%-5% of total mass of the copper acetate, the sodium thiosulfate and the hydrotalcite. Blue-green algae treatment and handling efficiency is high, the handling efficiency can be higher than 80%, and the hydrotalcite / cuprous oxide nanocomposite material is low in cost, convenient to operate and easy to apply widely. After frustules killing, no influence on total hardness, Al concentration, total nitrogen and organic content in the solution occurs, and 90% of phosphorus in a water body can be absorbed.
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Description

technical field

[0001] The invention belongs to the technical field of water treatment, and in particular relates to a hydrotalcite / cuprous oxide nanocomposite material and its application in water treatment. Background technique

[0002] In recent years, with the increase of resources utilization intensity in our country, the phenomenon of eutrophication in major lakes has become increasingly serious. Ecosystem degradation and frequent outbreaks of algae blooms have seriously affected human production and life, which has become a major environmental problem that restricts the sustainable development of our society and national economy.

[0003] Among all freshwater algae, Cyanophyta are the most toxic and have the widest range of pollution, especially Microcystis, Anabaena, A. of algae. Among the common algae removal methods, the most widely used is the coagulation algae removal technology with simple process equipment and low treatment costs. Among them, the adsorption ...

Claims

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