Method for treating sludge in vermiculture

A technology of earthworms and sludge, which is applied in chemical instruments and methods, solid waste removal, animal husbandry, etc., can solve the problem that the disposal system has not yet been formed, the engineering examples of earthworm treatment sludge are lacking, and the technology of earthworm treatment sludge has not been developed on a large scale. application and other issues

Inactive Publication Date: 2015-03-25
四川省生态环境科学研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, earthworm sludge treatment technology has not yet been applied on a large scale, and some key issues have not been resolved, such as sludge acceptance requirements, sludge pretreatment, parameter control during sludge disposal, product utilizati

Method used

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  • Method for treating sludge in vermiculture
  • Method for treating sludge in vermiculture
  • Method for treating sludge in vermiculture

Examples

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Embodiment 1

[0029] The method of treating sludge in the field cultured earthworms of this example is to mix the sludge with agricultural waste, carry out fermentation pretreatment, cool down, add it to the earthworm breeding bed, and use it as the breeding food for earthworms to control the pH value, temperature and humidity, through feeding and digestion by earthworms, the sludge is converted into vermicompost, and two products of earthworms and vermicompost are obtained. , the vertical structure of the bed in the wall 1 from the bottom to the upper part is an anti-seepage layer, an adjustment layer 2 and a culture layer 3; the adjustment layer 2 is a pebble layer, and the bottom of the pebble layer is provided with a perforated drainage pipe 6 and a perforated air distribution pipe 7 , the perforated drainage pipe 6 is connected with the collection pool 8 outside the body of wall 1, and the perforated air pipe 7 is connected with the perforated drainage pipe 6; there is a geotextile 9 be...

Embodiment 2

[0048] The method for the field breeding earthworm of this example to process sludge is except that the bottom layer of the anti-seepage layer is a compacted soil layer 4, and above the compacted soil layer is an anti-seepage film 5, and the anti-seepage film 5 is a geomembrane plus a geotextile, and all the others are the same Embodiment one.

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Abstract

The invention belongs to a method for treating sludge in vermiculture in the field of sludge treatment. The method comprises the steps that sludge and agricultural wastes are mixed, subjected to fermentation pretreatment, cooled down and added to a vermiculture bed, the sludge is converted into vermicompost through ingestion and digestion of earthworms, and two products of earthworms and vermicompost are obtained; the vermiculture bed is defined by an impermeable wall body, and the vertical face structure of the bed body in the wall body comprises an impermeable layer, and adjusting layer and a cultivation layer in sequence from bottom to top; a perforating drainage pipe and a perforating air distribution pipe are arranged at the bottom of the adjusting layer; the surface layer of the cultivation layer is a composite layer comprising a straw curtain, ginkgo leaves and decoction dregs. The method for treating the sludge in vermiculture overcomes the defect that a complete treatment system is not yet formed in the existing technology of treating the sludge through the earthworms. By means of the method for treating the sludge in vermiculture, a pollution source is controlled in the sludge treatment process, vigor of the earthworms is improved, and the sludge treatment amount is increased, so that the large-scale and standardized field vermiculture technology is achieved.

Description

technical field [0001] The invention belongs to the field of sludge treatment, and in particular relates to a method for treating sludge by earthworm breeding. Background technique [0002] my country's sludge treatment business started late, and the phenomenon of focusing on "water" and neglecting "mud" has existed for a long time. At present, less than a quarter of the existing sewage treatment industry has stable treatment facilities such as incineration, comprehensive utilization, and deep dehydration landfill. Less than 1 / 10 of the technology and supporting equipment are relatively complete, and few of them can operate normally; my country's traditional sludge independent landfill disposal technology has problems such as large infrastructure investment, low load, difficult operation and management, and lack of operating experience. . Mixed landfill with garbage has a great impact on the properties of the garbage dump, brings safety hazards to the garbage dump, and blocks...

Claims

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Application Information

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IPC IPC(8): A01K67/033B09B3/00
CPCA01K67/033B09B3/00B09B2101/018
Inventor 雍毅叶宏刘金议尹朝阳吴怡
Owner 四川省生态环境科学研究院
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