Heavy metal wastewater composite adsorbent and preparation method thereof

A composite adsorption and heavy metal technology, applied in water/sewage treatment, chemical instruments and methods, extraction water/sewage treatment, etc., can solve the problems of lack of types of airgel materials, limit the selection of sewage treatment materials, etc., and achieve high market application Prospect, easy adsorption, low cost effect

Inactive Publication Date: 2016-06-15
杨洋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of the rapid development of my country's economy and industrial technology, more and more attention has been paid to the environmental problems brought about. Sewage treatment materials have become an important part of sewage treatment technology and have also attracted attention from various fields; currently used for sewage treatment The lack of types of airgel materials in China

Method used

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  • Heavy metal wastewater composite adsorbent and preparation method thereof
  • Heavy metal wastewater composite adsorbent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1:

[0030] A composite adsorbent for heavy metal sewage, which is composed of the following raw materials in parts by weight: A composite adsorbent for sewage treatment, characterized in that it is composed of the following raw materials in parts by weight: zeolite 20; resorcinol 20; Triphenylphosphine 0.5; Furfural 8; Humic acid 1.0; Triethylene diamine 0.8; Methyl cellulose 3.0; Sodium dodecyl sulfonate 2.0; Graphene nanolayer / MnO2 composite 3.0; Chitosan -Graphene composite material 5.0. The preparation method is:

[0031] Step 1: The zeolite is calcined in a rotary kiln for 1 hour, the calcination temperature is 700℃, and the rotation speed of the rotary kiln is 5rpm; after calcination, it is naturally cooled to room temperature for later use;

[0032] Step 2: Grind and pulverize the calcined zeolite obtained in Step 1, and crush and sieve to 200 mesh;

[0033] Step 3: Add resorcinol, triphenylphosphine, furfural, humic acid and triethylenediamine to deionized wa...

Example Embodiment

[0040] Example 2:

[0041] A composite adsorbent for heavy metal sewage, which is composed of the following raw materials in parts by weight: zeolite 30; resorcinol 24; triphenylphosphine 0.9; furfural 12; humic acid 2.0; triethylenediamine 1.2; methyl fiber Sodium dodecyl sulfonate 4.0; Graphene nanolayer / MnO2 composite 6.0; Chitosan-graphene composite 10.0.

[0042] The preparation method is:

[0043] Step 1: The zeolite is calcined in a rotary kiln for 2 hours, the calcination temperature is 700℃, and the rotation speed of the rotary kiln is 10rpm; after calcination, it is naturally cooled to room temperature for later use;

[0044] Step 2: Grind and pulverize the calcined zeolite obtained in Step 1, and crush and sieve to 200 mesh;

[0045] Step 3: Add resorcinol, triphenylphosphine, furfural, humic acid and triethylenediamine to deionized water, and stir and mix at a heating temperature of 70°C, with a stirring speed of 900rpm and a stirring time of 10min;

[0046] Step 4: Add the ...

Example Embodiment

[0052] Example 3:

[0053] A composite adsorbent for heavy metal sewage, which is composed of the following raw materials in parts by weight: zeolite 25; resorcinol 22; triphenylphosphine 0.7; furfural 10; humic acid 1.5; triethylenediamine 1.0; methyl fiber Sodium dodecylsulfonate 3.0; Graphene nanolayer / MnO2 composite 5.0; Chitosan-graphene composite 8.0.

[0054] The preparation method is:

[0055] Step 1: The zeolite is calcined in a rotary kiln for 2 hours, the calcination temperature is 700°C, and the rotation speed of the rotary kiln is 8 rpm; after calcination, it is naturally cooled to room temperature for later use;

[0056] Step 2: Grind and pulverize the calcined zeolite obtained in Step 1, and crush and sieve to 200 mesh;

[0057] Step 3: Add resorcinol, triphenylphosphine, furfural, humic acid and triethylenediamine to deionized water, and stir and mix at a heating temperature of 70°C, with a stirring speed of 900rpm and a stirring time of 10min;

[0058] Step 4: Add the z...

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Abstract

The invention discloses a heavy metal sewage composite adsorbent and a preparation method thereof. It is composed of the following raw materials in parts by weight: 20-30 zeolite; 20-24 resorcinol; 12; humic acid 1.0-2.0; triethylenediamine 0.8-1.2; methylcellulose 3.0-5.0; sodium dodecylsulfonate 2.0-4.0; graphene nanolayer/MnO2 composite 3.0-6.0; chitosan Sugar-graphene composite material 5.0-10.0. The beneficial effects of the present invention are: (1) the airgel material for sewage treatment of the present invention has a large pore size, stable structure, and is easy to absorb heavy metal ions in sewage; (2) the airgel material for sewage treatment of the present invention The gel material has good adsorption efficiency and large adsorption capacity for heavy metal ions in sewage; (3) the airgel material used for sewage treatment of the present invention has a simple production process, low cost, safety and environmental protection, and has a high market application prospect.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a heavy metal sewage composite adsorbent and a preparation method thereof. Background technique [0002] Airgel is a kind of gel material whose dispersion medium is gas, and the solid phase and pore structure are both on the nanometer scale. Due to its structural uniqueness, airgel exhibits many unique properties: airgel is currently the world's smallest solid material, with a density as low as 0.002g cm -3 ;Aerogel is currently the solid material with the smallest thermal conductivity in the world, and its thermal conductivity in vacuum at room temperature can reach 0.001W·m -1 ·K -1 ; The refractive index of silica airgel can be adjusted continuously within a certain range; The unique structure and properties of airgel make it show good application value in many fields. [0003] In the process of the rapid development of my country's economy and industrial...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30C02F1/26C02F1/62
CPCB01J20/26B01J20/0222B01J20/165B01J20/205B01J20/22B01J2220/445C02F1/288C02F2101/20
Inventor 杨洋
Owner 杨洋
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