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Rolling adsorption type sludge harmless treatment method

A harmless treatment and adsorption technology, applied in the direction of sludge treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of environmental pollution and the level of harmlessness of sludge treatment is not high enough to achieve High degree of adsorption, sufficient and efficient harmless treatment

Inactive Publication Date: 2018-06-19
中运建设控股有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the sludge is not harmlessly treated, it will cause serious environmental pollution
However, the harmless degree of sludge treatment is not high enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A rolling adsorption sludge harmless treatment method, comprising the following steps:

[0022] S1. Dissolve the sludge in water and stir thoroughly, then heat, let stand after heating, and finally filter out the floating matter. The stirring time was 20 min. The heating temperature is 200 degrees. The standing time is 20 min.

[0023] S2. Pour the filtered sludge into the sedimentation tank for precipitation, then pour out the supernatant, evenly sprinkle the precipitated sludge water on the high-temperature resistant sponge, heat the high-temperature resistant sponge, and wait for the high-temperature resistant sponge Stop heating when the sludge above dries up. The settling time is 40 min. The heating temperature is 70 min; the heating time is 30 min.

[0024] S3. Send the high-temperature-resistant sponge containing dried sludge into the vibrating machine and collect the vibrated sludge powder, and then send the high-temperature-resistant sponge into the blower...

Embodiment 2

[0027] A rolling adsorption sludge harmless treatment method, comprising the following steps:

[0028] S1. Dissolve the sludge in water and stir thoroughly, then heat, let stand after heating, and finally filter out the floating matter. The stirring time was 25 minutes. The heating temperature is 230 degrees. The standing time is 25min.

[0029] S2. Pour the filtered sludge into the sedimentation tank for precipitation, then pour out the supernatant, evenly sprinkle the precipitated sludge water on the high-temperature resistant sponge, heat the high-temperature resistant sponge, and wait for the high-temperature resistant sponge Stop heating when the sludge above dries up. Settling time is 45min. The heating temperature is 80min; the heating time is 35min.

[0030] S3. Send the high-temperature-resistant sponge containing dried sludge into the vibrating machine and collect the vibrated sludge powder, and then send the high-temperature-resistant sponge into the blower to ...

Embodiment 3

[0033] A rolling adsorption sludge harmless treatment method, comprising the following steps:

[0034] S1. Dissolve the sludge in water and stir thoroughly, then heat, let stand after heating, and finally filter out the floating matter. Stirring time is 30min. The heating temperature is 250 degrees. The standing time is 30min.

[0035] S2. Pour the filtered sludge into the sedimentation tank for precipitation, then pour out the supernatant, evenly sprinkle the precipitated sludge water on the high-temperature resistant sponge, heat the high-temperature resistant sponge, and wait for the high-temperature resistant sponge Stop heating when the sludge above dries up. Settling time is 50min. The heating temperature is 90min; the heating time is 40min.

[0036] S3. Send the high-temperature-resistant sponge containing dried sludge into the vibrating machine and collect the vibrated sludge powder, and then send the high-temperature-resistant sponge into the blower to blow out a...

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Abstract

The invention discloses a rolling adsorption type sludge harmless treatment method. The rolling adsorption type sludge harmless treatment method comprises the following steps of S1, dissolving sludgeinto water, fully stirring, heating, standing after heating is finished, and finally filtering out the floating matter; S2, pouring the filtered sludge into a precipitation tank to precipitate, pouring out a supernatant liquid, uniformly spraying the precipitated sludge water onto a high temperature-resistant sponge, heating the high temperature-resistant sponge, and stopping heating after the sludge on the high temperature-resistant sponge is dried; S3, sending the high temperature-resistant sponge containing the dried sludge into a vibrator, collecting the vibrated-out sludge powder, sendingthe high temperature-resistant sponge into an air blower, blowing out a small amount of residual sludge powder, and collecting; S4, sequentially performing rolling adsorption on the collected sludgepowder by an activated carbon roll, spraying a sodium citrate solution to complex, stirring the sludge in a spraying tank, and filtering the sludge solution after reaction to separate out the heavy metal complex. The rolling adsorption type sludge harmless treatment method has the advantage that the harmless treatment degree is high.

Description

technical field [0001] The invention relates to a rolling adsorption sludge harmless treatment method. Background technique [0002] Sludge is enriched with pollutants in sewage, containing a large amount of nutrients such as nitrogen and phosphorus, as well as toxic and harmful substances such as organic matter, virus microorganisms, parasite eggs, and heavy metals. The sludge has an unpleasant smell and contains a large number of bacteria and toxic substances. heavy metal. The main characteristics of sludge are high water content, high organic matter content, easy to rot and smell, and the particles are finer, the specific gravity is smaller, and it is in a colloidal liquid state, and it is difficult to separate solids and liquids by sedimentation. If the sludge is not harmlessly treated, it will cause serious environmental pollution. However, the harmless degree of sludge treatment is not high enough. Contents of the invention [0003] Aiming at the deficiencies of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00
CPCC02F11/00
Inventor 徐洪徐其泽
Owner 中运建设控股有限公司
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