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Method for preparing sludge active carbon by using sludge and sludge active carbon

A sludge activated carbon and sludge technology, applied in the field of sludge activated carbon, can solve the problems of polluting the environment and occupying land, and achieve the effects of fast adsorption speed, outstanding adsorption balance ability, and abundant transition pores.

Inactive Publication Date: 2009-05-06
邹炎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The sludge from existing water purification and sewage treatment plants is usually disposed of, or incinerated or landfilled. These treatment methods not only occupy land, but also pollute the environment.

Method used

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  • Method for preparing sludge active carbon by using sludge and sludge active carbon
  • Method for preparing sludge active carbon by using sludge and sludge active carbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The method for preparing sludge activated carbon by utilizing sludge of the present invention comprises the following steps:

[0021] (1) adding 50 or 100 parts by weight of flocculant PAM and 2 or 5 or 8 or 10 parts by weight of heavy metal chelating agent according to the sludge of 1,000,000 parts by weight of purified water treatment plant and / or sewage water treatment plant to obtain sludge ingredients;

[0022] (2) the sludge batching obtained in step (1) is placed in a stirring device and stirred, and then the stirred sludge batching is placed in a concentration and dewatering device for dehydration, and the water content of the sludge batching after the concentration and dehydration is 75% % or 85%;

[0023] (3) placing the dehydrated sludge ingredients obtained in step (2) in a drying device for drying, and the drying temperature is 60°C or 70°C or 80°C or 90°C or 110°C or 120°C. The moisture content of the mud ingredients is 20% or 30%;

[0024] (4) placing ...

Embodiment 2

[0028] The method for preparing sludge activated carbon by utilizing sludge of the present invention comprises the following steps:

[0029] (1) add 60 or 90 parts by weight of flocculant PAM and 3 or 4 or 9 or 10 parts by weight of heavy metal chelating agent according to the sludge of 1,000,000 parts by weight of purified water treatment plant and / or sewage water treatment plant to obtain sludge ingredients;

[0030] (2) the sludge batching obtained in step (1) is placed in a stirring device and stirred, and then the stirred sludge batching is placed in a concentration and dewatering device for dehydration, and the water content of the sludge batching after the concentration and dehydration is 78% % or 82%;

[0031] (3) placing the dehydrated sludge ingredients obtained in step (2) in a drying device for drying, and the drying temperature is 65°C or 75°C or 85°C or 95°C or 115°C or 120°C. The moisture content of the mud ingredients is 25% or 28%;

[0032] (4) placing the ...

Embodiment 3

[0036] The method for preparing sludge activated carbon by utilizing sludge of the present invention comprises the following steps:

[0037] (1) add 70 or 80 parts by weight of flocculant PAM and 2 or 5 or 8 or 10 parts by weight of heavy metal chelating agent according to the sludge of 1,000,000 parts by weight of purified water treatment plant and / or sewage water treatment plant to obtain sludge ingredients;

[0038] (2) placing the sludge batching obtained in step (1) in a stirring device and stirring, then placing the stirred sludge batching in a concentration and dewatering device for dehydration, and the water content of the sludge batching after the concentration and dehydration is 80% % or 84%;

[0039] (3) placing the dehydrated sludge ingredients obtained in step (2) in a drying device for drying, and the drying temperature is 60°C or 70°C or 80°C or 90°C or 110°C or 120°C. The moisture content of the mud ingredients is 22% or 27%;

[0040](4) Place the dried slud...

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Abstract

The invention provides a method used for preparing sludge active carbon by sludge and the sludge active carbon. According to the weight parts, 1,000,000 of sludge of a water disposal factory is mixed with 50-100 of flocculant and 2-10 of heavy metal chelating agent; the gained sludge complex is mixed in a mixing device, dehydrated and dried; the gained sludge complex is semi-dry-distillated in a semi-dry distilling gasification furnace and uniformly granulated by the weight ratio of sludge semi-coke, adhesive and hole-adjusting agent of 100:10-30:1-5, and shined under the sun; the gained complex is activated in an activation furnace, screened after the activation disposal and then prepared into powder to gain the sludge active carbon. The prepared sludge active carbon has rich large holes, middle holes and transition holes, outstanding adsorption balance capability and fast adsorption speed, is especially applied to sewage disposal, and can also be used for disposing wastewater, waste gas and improving the soil.

Description

technical field [0001] The invention relates to a sludge treatment technology, in particular to a method for processing sludge from a purified water treatment plant and a sewage water treatment plant into sludge activated carbon and the sludge activated carbon. Background technique [0002] Sludge from existing water purification water treatment plants and sewage water treatment plants is usually disposed of, or incinerated or landfilled. These treatment methods not only occupy land, but also pollute the environment. The sludge of water purification water treatment plants and sewage water treatment plants contains many carbon and various metal components, which has the objective conditions for producing activated carbon. If it is properly treated and applied, it can not only reduce the environmental pollution caused by sludge, but also It is also possible to manufacture activated carbon products with high added value, and this activated carbon product can be reused in source...

Claims

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Application Information

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IPC IPC(8): C01B31/08
Inventor 邹炎
Owner 邹炎
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