Sewage heavy metal ion adsorbent and preparation method thereof

A technology of heavy metal ions and adsorbents, applied in water/sewage treatment, chemical instruments and methods, adsorbed water/sewage treatment, etc. Low-cost, wide-ranging effects

Inactive Publication Date: 2016-06-08
杨洋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] 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 greatly li

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A sewage heavy metal ion adsorbent, made of the following raw materials in parts by weight: pine bark 200, zinc sulfide 4, iron sulfide 5, trimethoxymercaptopropenyl silane 10, diatomite 50, graphene nano-layer / MnO2 composite Material 5, chitosan-graphene composite material 6, ethylene glycol 20, hydrochloric acid 10, cetyltrimethylammonium bromide 10, deionized water 400.

[0028] The preparation method of described sewage heavy metal ion adsorbent comprises the following steps:

[0029] Step 1: Put the pine bark into the furnace for carbonization, the carbonization temperature is 800°C, and the carbonization time is 20 minutes;

[0030] Step 2: Infuse nitrogen into the furnace until the oxygen content in the furnace is less than 400ppm, and drop to room temperature for later use;

[0031] Step 3: Grinding and pulverizing the carbonized pine bark obtained in step 2, and sieving through 600 mesh;

[0032] Step 4: Steam activation is performed on the carbonized powder ...

Embodiment 2

[0039] A sewage heavy metal ion adsorbent, made of the following raw materials in parts by weight: pine bark 300, zinc sulfide 8, iron sulfide 7, trimethoxymercaptopropenyl silane 20, diatomite 60, graphene nano-layer / MnO2 composite Material 10, chitosan-graphene composite material 12, ethylene glycol 40, hydrochloric acid 20, cetyltrimethylammonium bromide 14, deionized water 500.

[0040] The preparation method of described sewage heavy metal ion adsorbent comprises the following steps:

[0041] Step 1: Put the pine bark into the furnace for carbonization, the carbonization temperature is 1000°C, and the carbonization time is 30 minutes;

[0042] Step 2: Infuse nitrogen into the furnace until the oxygen content in the furnace is less than 400ppm, and drop to room temperature for later use;

[0043] Step 3: Grinding and pulverizing the carbonized pine bark obtained in step 2, and sieving through 600 mesh;

[0044] Step 4: Steam activation is performed on the carbonized powd...

Embodiment 3

[0051] A sewage heavy metal ion adsorbent, made of the following raw materials in parts by weight: pine bark 250, zinc sulfide 6, iron sulfide 6, trimethoxymercaptopropenyl silane 15, diatomite 55, graphene nano-layer / MnO2 composite 8, chitosan-graphene composite material 9, ethylene glycol 30, hydrochloric acid 15, cetyltrimethylammonium bromide 12, deionized water 450.

[0052] The preparation method of described sewage heavy metal ion adsorbent comprises the following steps:

[0053] Step 1: Put the pine bark into the furnace for carbonization, the carbonization temperature is 900°C, and the carbonization time is 25 minutes;

[0054] Step 2: Infuse nitrogen into the furnace until the oxygen content in the furnace is less than 400ppm, and drop to room temperature for later use;

[0055] Step 3: Grinding and pulverizing the carbonized pine bark obtained in step 2, and sieving through 600 mesh;

[0056] Step 4: Steam activation is performed on the carbonized powder obtained ...

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PUM

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Abstract

The invention provides a sewage heavy metal ion adsorbent and a preparation method thereof. The sewage heavy metal ion adsorbent is prepared from the following raw materials in parts by weight: 200-300 parts of pine tree barks, 4-8 parts of zinc sulfide, 5-7 parts of iron sulfide, 10-20 parts of trimethoxysulfydrylallyl silane, 50-60 parts of diatomite, 5-10 parts of a graphene nano layer/MnO2 composition, 6-12 parts of a chitosan-graphene composite material, 20-40 parts of ethylene glycol, 10-20 parts of hydrochloric acid, 10-14 parts of cetyl trimethyl ammonium bromide and 400-500 parts of de-ionized water. The sewage heavy metal ion adsorbent provided by the invention has the advantages that the pine tree barks have a wide source and a relatively low cost; ion exchange is carried out by adopting a molecular sieve carrier so that secondary pollution is not caused; the graphene nano layer/MnO2 composition, the chitosan-graphene composite material, cross-linked rectorite and bentonite are added, so that the adsorption effect on heavy metal ions is improved; and the sewage heavy metal ion adsorbent has a good removing effect on liquid-phase heavy metals and the heavy metal ions.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a sewage heavy metal ion adsorbent and a preparation method thereof. Background technique [0002] 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 greatly limits the selection of sewage treatment materials. Therefore, it is necessary to develop an adsorption material suitable for sewage treatment that has good adsorption efficiency for heavy metal ions in wastewater, large adsorption capacity, and excellent mechanical properties. For rich sewage treatment materials, It is of great significance to promote the development of sewage treatment. Conte...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30C02F1/28C02F1/62
CPCB01J20/26B01J20/0285B01J20/0288B01J20/06B01J20/14B01J20/205B01J20/22B01J2220/445C02F1/285C02F2101/20
Inventor 杨洋
Owner 杨洋
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