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Preparation method and application of attapulgite composite adsorbent material

A composite adsorption and attapulgite technology, applied in chemical instruments and methods, adsorption water/sewage treatment, alkali metal compounds, etc., can solve the problems of limited adsorption capacity of heavy metals, and achieve the effect of improving adsorption effect, promoting production, and efficient removal

Active Publication Date: 2021-04-02
HUAIYIN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this adsorbent is mainly suitable for the treatment of printing and dyeing wastewater produced by azo dyes, reactive dyes, triphenylmethane dyes, phthalocyanine dyes or anthraquinone dyes, and has limited adsorption capacity for heavy metals.

Method used

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  • Preparation method and application of attapulgite composite adsorbent material
  • Preparation method and application of attapulgite composite adsorbent material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of preparation method of attapulgite composite adsorbent material, concrete steps are as follows:

[0035](1) Attapulgite is firstly used as raw material, modified by N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane to obtain amino-modified attapulgite, and then glutaric anhydride, chlorine Iron oxide is further modified to obtain carboxyl-modified magnetic attapulgite;

[0036] (2) Then use carboxyl-modified magnetic attapulgite, coconut shell powder, surface hydroxylation modified silica gel, and acrylic acid premixed solution as raw materials, and perform a polymerization reaction to obtain a mixed solution;

[0037] (3) Adding Candida utilis and Rhizopus oryzae into the mixed solution, fermenting, filtering, drying, grinding and sieving to obtain the attapulgite composite adsorbent material.

[0038] In step (1), the attapulgite is pretreated first, and the specific method is as follows: first add the attapulgite to water with 4 times the weight, 800W ult...

Embodiment 2

[0053] A kind of preparation method of attapulgite composite adsorbent material, concrete steps are as follows:

[0054] (1) Attapulgite is firstly used as raw material, modified by N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane to obtain amino-modified attapulgite, and then glutaric anhydride, chlorine Iron oxide is further modified to obtain carboxyl-modified magnetic attapulgite;

[0055] (2) Then use carboxyl-modified magnetic attapulgite, coconut shell powder, surface hydroxylation modified silica gel, and acrylic acid premixed solution as raw materials, and perform a polymerization reaction to obtain a mixed solution;

[0056] (3) Adding Candida utilis and Rhizopus oryzae into the mixed solution, fermenting, filtering, drying, grinding and sieving to obtain the attapulgite composite adsorbent material.

[0057] In step (1), the attapulgite is firstly pretreated, and the specific method is as follows: first add the attapulgite to water with 6 times the weight, 500W ...

Embodiment 3

[0072] A kind of preparation method of attapulgite composite adsorbent material, concrete steps are as follows:

[0073] (1) Attapulgite is firstly used as raw material, modified by N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane to obtain amino-modified attapulgite, and then glutaric anhydride, chlorine Iron oxide is further modified to obtain carboxyl-modified magnetic attapulgite;

[0074] (2) Then use carboxyl-modified magnetic attapulgite, coconut shell powder, surface hydroxylation modified silica gel, and acrylic acid premixed solution as raw materials, and perform a polymerization reaction to obtain a mixed solution;

[0075] (3) Adding Candida utilis and Rhizopus oryzae into the mixed solution, fermenting, filtering, drying, grinding and sieving to obtain the attapulgite composite adsorbent material.

[0076] In step (1), the attapulgite is first pretreated, and the specific method is as follows: first add the attapulgite to water with 5 times the weight, 700W ul...

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Abstract

The invention discloses a preparation method and application of an attapulgite composite adsorbent material, which comprises the following steps: by using attapulgite as a raw material, carrying out N-(beta-aminoethyl)-gamma-aminopropyl methyl dimethoxysilane modification treatment to obtain amino-modified attapulgite, and adding glutaric anhydride and ferric chloride to further carry out modification treatment to obtain carboxyl-modified magnetic attapulgite; then taking carboxyl modified magnetic attapulgite, coconut shell powder, surface hydroxylation modified silica gel and an acrylic acidpremixed solution as raw materials, and carrying out polymerization reaction to obtain a mixed solution; and finally, inoculating candida utilis and rhizopus oryzae into the mixed solution, and conducting fermenting, filtering, drying, grinding and sieving to obtain the product. The adsorbent material can effectively remove dyes and heavy metals in printing and dyeing wastewater.

Description

technical field [0001] The invention relates to a preparation method and application of an adsorbent, in particular to a preparation method and application of an attapulgite composite adsorbent. Background technique [0002] In recent years, the environmental pollution caused by industrial wastewater has become more and more serious, posing a serious threat to human health and human survival. Textile wastewater is mainly wastewater containing natural impurities, fat, starch and other organic matter produced during raw material cooking, rinsing, bleaching, and sizing; printing and dyeing wastewater is produced in multiple processes such as washing, printing, and sizing, and contains inorganic pollution. substances (alkali, sulfide, various salts, etc.) and a large number of refractory organic substances (dyes, starch, cellulose, lignin, detergents, etc.), most of which are aromatic compounds , is highly polluting. Moreover, the printing and dyeing wastewater also contains a...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/28B01J20/30C02F1/28C02F101/20C02F101/30C02F103/30
CPCB01J20/26B01J20/12B01J20/28009C02F1/285C02F1/281C02F2101/20C02F2101/308C02F2103/30
Inventor 谭立强陈梓徐婷婷许莹马喜君彭喜花谷亚昕胡涛
Owner HUAIYIN INSTITUTE OF TECHNOLOGY
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