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A high-adsorption composite material for sewage treatment and its preparation method

A composite material and sewage treatment technology, applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as limiting the selection of sewage treatment materials, and achieve high market application prospects and structure Robust, Inexpensive Effects

Active Publication Date: 2018-05-08
同信生态环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few types of airgel materials currently used for sewage treatment, which greatly limits the selection of sewage treatment materials. Airgel materials with excellent performance are of great significance for enriching sewage treatment materials and promoting the development of sewage treatment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A composite material for sewage treatment:

[0031] (1) Calcining 30 parts by weight of zeolite through a rotary kiln for 90 minutes, the calcination temperature is 350° C., and the rotating speed of the rotary kiln is 5 rpm; then the zeolite is cooled to room temperature;

[0032] (2) Resorcinol that is 25 parts by weight, furfural that is 10 parts by weight, humic acid that is 1.0 parts by weight, and ethylenediamine that is 0.6 parts by weight are added to deionized water, and the heating temperature is 65 Stir and mix at ℃, the stirring speed is 1000rpm, and the stirring time is 3 minutes;

[0033] (3) Add the zeolite obtained in step (1) to the mixed liquid in step (2), and perform ultrasonic mixing during the addition process, the operating temperature is 65°C, and the mixing time is 15 minutes;

[0034] (4) cryogel the mixture obtained in step (3) at -15°C;

[0035] (5) Solvent-exchange the gel obtained in step (4) with isopropanol at a temperature of 25°C;

...

Embodiment 2

[0038] A composite material for sewage treatment:

[0039] (1) Calcining 40 parts by weight of zeolite through a rotary kiln for 90 minutes, the calcination temperature is 650° C., and the rotating speed of the rotary kiln is 10 rpm; then the zeolite is cooled to room temperature;

[0040] (2) Resorcinol that is 35 parts by weight, furfural that is 15 parts by weight, humic acid that is 3.0 parts by weight, and ethylenediamine that is 1.2 parts by weight are added to deionized water, and the heating temperature is 65 Stir and mix at ℃, the stirring speed is 1200rpm, and the stirring time is 5 minutes;

[0041] (3) Add the zeolite obtained in step (1) to the mixed solution in step (2), and perform ultrasonic mixing during the addition process, the operating temperature is 65°C, and the mixing time is 30 minutes;

[0042] (4) cryogel the mixture obtained in step (3) at -15°C;

[0043] (5) Solvent-exchange the gel obtained in step (4) with isopropanol at a temperature of 25°C; ...

Embodiment 3

[0046] A composite material for sewage treatment:

[0047] (1) Calcining 36 parts by weight of zeolite through a rotary kiln for 30-90 minutes, the calcination temperature is 500° C., and the rotating speed of the rotary kiln is 9 rpm; then the zeolite is cooled to room temperature;

[0048] (2) Resorcinol that is 32 parts by weight, furfural that is 15 parts by weight, humic acid that is 2.6 parts by weight, and ethylenediamine that is 0.7 parts by weight are added to deionized water, and the heating temperature is 65 Stir and mix at ℃, the stirring speed is 1000rpm, and the stirring time is 3 minutes;

[0049] (3) Add the zeolite obtained in step (1) to the mixed solution in step (2), and perform ultrasonic mixing during the addition process, the operating temperature is 65°C, and the mixing time is 30 minutes;

[0050] (4) cryogel the mixture obtained in step (3) at -15°C;

[0051] (5) Solvent-exchange the gel obtained in step (4) with isopropanol at a temperature of 25°C; ...

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Abstract

The invention discloses a high-adsorption composite for sewage treatment. The high-adsorption composite comprises raw materials as follows: zeolite, resorcinol, furfural, humic acid and ethylene diamine. By means of the characteristics of large pore diameter, high porosity and the stable structure of the zeolite serving as a carrier and in combination of the advantages of large adsorption capacity and high adsorption efficiency of aerogel adopting a three-dimensional network structure, the defects that a aerogel structure is easy to collapse and has a small pore diameter are overcome, and the composite which is used for sewage treatment and has high adsorption capacity, good adsorption efficiency and stable structure is prepared and is suitable for a sewage treatment technique. The invention further discloses a preparation method of the composite for sewage treatment. The production process is simple, the cost is low, and the method is safe and environment-friendly and has application prospect on the market.

Description

technical field [0001] The invention belongs to the field of new materials, and in particular relates to a high-adsorption composite material used for sewage treatment and a preparation method thereof. Background technique [0002] As a new type of nanoporous carbon material, carbon aerogel has the advantages of high porosity, large specific surface area, and wide density range. Since its continuous three-dimensional nano-network structure can be controlled in mesoscopic dimensions, it is widely used in catalyst supports, electrodes of supercapacitors, thermal insulation materials, adsorbents, etc. The preparation of traditional carbon aerogels mainly uses resorcinol and aldehydes as raw materials, and is prepared through steps such as sol, gel, acid washing and aging, solvent exchange, drying, and carbonization. With the expansion of the scope of reaction raw materials and the change of preparation conditions, carbon aerogels show new properties, and its scope of applicati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30C02F1/28C02F1/62
CPCB01J20/165B01J20/22B01J20/28047B01J2220/4806C02F1/288
Inventor 陈庆叶任海张建国张路泽
Owner 同信生态环境科技有限公司
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