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Sludge treatment method

A technology for sludge treatment and sludge, applied in sludge treatment, water/sludge/sewage treatment, dehydration/drying/thickened sludge treatment, etc., can solve the problems of high energy consumption and high cost, and achieve thorough disposal Effect

Inactive Publication Date: 2020-02-04
刘从珍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With this method, the energy consumption is large and the cost is high; 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. A sludge finished-product obtained after treatment by the method can be directly used as a fertilizer for flowers and trees and plants to fertilize flowers and trees in urban green belts and beside highways. The sludge treatment method breaks the aquatic organism cell wall contained in sludge through cutting and granulating, so that water originally contained in the cell wall is fully evaporated, the problem that the sludge cannot be completely dried is solved, and the energy-saving, efficient and thorough disposal of the sludge is realized.

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. With this method, the energy consumption is large and the cost is high; the third is landfill. This can cause pollution to groundwater sources, and the state has banned the use of this 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: dehydrating the sludge; chopping and granulating; and then heating and drying. The drying temperature is betwee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/13C02F11/00C05F7/00
CPCC02F11/00C02F11/12C02F2303/06C05F7/00Y02A40/20
Inventor 刘从珍
Owner 刘从珍
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