Quick sludge composting method for co-drying of earthworm compost

An earthworm and sludge technology, applied in the preparation of sewage/sludge fertilizer, organic fertilizer, organic fertilizer, etc., can solve the problems of lack of treatment technology and equipment, death of earthworms, difficulty in sorting earthworms, etc. Effects of processing cycles

Inactive Publication Date: 2019-11-05
LANZHOU JIAOTONG UNIV
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  • Claims
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Problems solved by technology

[0004] 1. The treatment cycle of earthworm sludge composting technology is longer;
[0005] 2. Earthworms are easy to die in the compost body;
[0006] 3. The water content of sludge vermicomp...

Method used

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  • Quick sludge composting method for co-drying of earthworm compost
  • Quick sludge composting method for co-drying of earthworm compost

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] The rapid sludge fertilization method of the collaborative drying of earthworm composting in the present invention is to treat the sludge in the earthworm ridge by earthworms, and then take the upper layer of sludge regularly after natural drying to reduce the moisture content of the sludge, and in the process There is no need to take out the earthworms in the vermicompost, and the removed sludge is back-connected with a certain amount of vermicompost flora, and high-quality vermicompost can be formed stably in a natural state. The device used refers to figure 1 , including the lower earthw...

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Abstract

The invention discloses a quick sludge composting method for co-drying of earthworm compost. The method comprises the following steps that (1) after sludge earthworm casts is laid on a middle-layer earthworm bed, earthworms are inoculated, and after sludge is granulated, a top-layer earthworm ridge is carpeted with sludge particles; (2) a lower-layer earthworm collection bed, the middle-layer earthworm bed and the top-layer earthworm ridge are stacked, the ridge is covered with breathable black-out cloth, and the earthworms crawl from the middle layer to the upper layer to treat the sludge particles for 7-10 days; (3) the top-layer earthworm ridge is naturally air-dried for 2 days and taken away, and the earthworms automatically crawl into the middle-layer earthworm bed; (4) fresh earthworm casts in the middle-layer earthworm bed are shoveled out to prepare a turbid solution for inoculating florae, the turbid solution is sprayed in the sludge in the top-layer earthworm ridge, and stabilizing is carried out for 7-10 days to form the earthworm compost; (5) a new earthworm ridge is added on the middle-layer earthworm bed as the top-layer earthworm ridge, the operation processes are repeated, and the earthworm compost can be obtained constantly. The quick sludge composting method for co-drying of the earthworm compost has the advantages that the sludge composting treatment cycle ofthe earthworms is shortened, continuous treatment of the sludge earthworm casts can be achieved, the earthworms do not need to be taken out or sorted, and the water content of the earthworm compost is low.

Description

technical field [0001] The invention belongs to the technical field of sludge resource treatment of environmental engineering / municipal engineering, and in particular relates to a rapid sludge fertilization method for synergistic drying of earthworm composting. Background technique [0002] With the rapid advancement of urbanization in our country, the output of sewage sludge is increasing, and the workload of its treatment is increasing, which makes the treatment and disposal of sewage sludge an important problem to be solved urgently in the water treatment industry. At present, my country's sludge treatment and disposal methods mainly include incineration, landfill, high-temperature composting, anaerobic digestion, etc., but due to the large differences in economic levels and the complexity of sludge components in various regions, there is still a lack of safe, effective, economical and environmentally friendly sludge in various regions. Handle disposal measures. Vermicomp...

Claims

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Application Information

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IPC IPC(8): C05F7/00C05F17/00
CPCC05F7/00Y02A40/20Y02W30/40
Inventor 黄魁祝凉张伟夏慧
Owner LANZHOU JIAOTONG UNIV
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