Preparation method of modified cellulose heavy metal adsorbent

A technology of cellulose and heavy metals, applied in chemical instruments and methods, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of resource waste, environmental pollution, etc., and achieve convenient operation, strong adsorption capacity, The effect of cheap and easy-to-obtain raw materials
CN105013447AInactive Publication Date: 2015-11-04NANTONG UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANTONG UNIVERSITY
Publication Date
2015-11-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of a modified cellulose heavy metal adsorbent. The method includes the steps of: 1. preparation of alkalized cellulose; 2. preparation of oxidized cellulose; and 3. preparation of polyamino modified cellulose. The method specifically includes: firstly conducting alkali pretreatment on cellulose to obtain alkalized cellulose, then using sodium periodate as the oxidizing agent to carry out selective oxidation on the alkalized cellulose to obtain oxidized cellulose, then using glutaraldehyde as the cross-linking agent, and employing a polyamino compound to conduct amination modification on the oxidized cellulose, thus obtaining the modified cellulose heavy metal adsorbent. The method provided by the invention has the advantages of relatively mild preparation conditions, simple process, convenient operation, easy large scale, and good industrial popularization prospect. The product has strong heavy metal adsorption ability, and can be used for heavy metal ion wastewater, organic wastewater treatment and other fields.
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Description

technical field

[0001] The invention relates to a preparation method of a heavy metal adsorbent, in particular to a preparation method of a modified cellulose heavy metal adsorbent, and belongs to the field of material modification processing. Background technique

[0002] With the continuous acceleration of China's industrialization, more and more industries are involved in heavy metal emissions, including mining, metal smelting, chemical industry, printing and dyeing, leather, pesticides, feed, etc. In addition, some polluting enterprises have illegal mining and excessive sewage discharge. Prominent, so heavy metal pollution incidents appear high incidence trend. Water pollution caused by unreasonable discharge of industrial wastewater has always been a serious environmental problem. Heavy metal ions are highly toxic at low concentrations and can accumulate in biological organisms, causing a series of disorders and diseases. Therefore, the separation and removal of heavy ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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