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Sludge treatment method

A sludge treatment and sludge technology, applied in the direction of dewatering/drying/concentrating sludge treatment, can solve the problems of large energy consumption, small footprint and high cost, and achieve the effect of thorough disposal

Inactive Publication Date: 2020-01-14
刘小蕾
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method consumes a lot of energy and costs high, but it occupies a small area during treatment. At present, this method is used in the treatment of sludge in Macao, my country; the third is landfill

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Embodiment 1: This sludge treatment method is used for sewage treatment plant sludge, and it is transformed into fertilizer, fuel additive or used for brick making etc. The method comprises the following steps: dehydrating the sludge; chopping and granulating; and then heating and drying. The drying temperature is 200°C.

[0012] The sludge particles produced after drying by this method are mixed with coal in the range of 10% addition ratio, and can be made into mixed fuel.

Embodiment 2

[0013] Embodiment 2: the sludge grain that the method described in embodiment 1 produces after drying is sprinkled in the flower and tree cultivation soil as fertilizer.

Embodiment 3

[0014] Embodiment 3: the sludge granules produced after the method described in embodiment 1 are dried are pulverized, brick-making, baked and finalized. Sludge is made into bricks for use.

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PUM

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Abstract

The invention discloses a sludge treatment method. Through cutting and pelletizing, cell walls of aquatic organisms in sludge can be cut and broken, so that moisture in the cell walls can be sufficiently evaporated off, the problem that the sludge cannot be completely dried can be solved, and energy-saving, efficient and thorough treatment on the sludge can be achieved.

Description

technical field [0001] The invention relates to a sludge treatment method. Background technique [0002] For the processing of sludge, prior art mainly contains three kinds of processing methods: the one, directly pour into the sea. Doing so pollutes marine resources and has been expressly prohibited by the international community; the second is to take the method of burning. This method consumes a lot of energy and costs high, but it occupies a small area during treatment. At present, this method is used in the treatment of sludge in Macao, my country; the third is landfill. This can pollute groundwater sources, and countries such as France have banned the method. Contents of the invention [0003] The object of the present invention is to provide a sludge treatment method for urban sewage treatment plants. [0004] In order to achieve the purpose of the present invention, this specification provides a sludge treatment method, comprising the following steps: dehydratin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12C02F11/13
CPCC02F11/12
Inventor 刘小蕾
Owner 刘小蕾
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