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Earthworm reactor with frame composite structure, and sludge treatment method thereof

A composite structure and reactor technology, which is applied in the field of sludge treatment and resource utilization, can solve the problems of long earthworm treatment cycle, large floor area, mosquito breeding, etc., achieve good environmental and social benefits, and small floor space , The effect of short sludge cycle

Pending Publication Date: 2020-01-07
NANJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Purpose of the invention: The present invention combines the physical and chemical properties of sludge, the characteristics of earthworm treatment and the physiological habits of earthworms to treat sludge, and provides a frame composite structure earthworm reactor to solve the problems of long earthworm treatment cycle and occupation of earthworms in the prior art. Problems such as large area, mosquito breeding and bad smell

Method used

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  • Earthworm reactor with frame composite structure, and sludge treatment method thereof
  • Earthworm reactor with frame composite structure, and sludge treatment method thereof

Examples

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Embodiment 1

[0036] The present invention adopts such as figure 1 The shown frame composite structure earthworm reactor is used for sludge treatment. The frame composite structure earthworm reactor comprises a main frame 1 and a multi-layer reactor box 3 located in the main frame 1; the bottom of each layer of the main frame 1 is provided with a bottom plate 2, and the bottom of the main frame 1 is provided with universal wheels 8; The reactor box 3 is movably arranged on the bottom plate 2 of each floor, and can be drawn out from the main body frame 1 . The main frame 1 is 52cm long, 44cm wide, and 230cm high, with 15 layers in total, and each layer is 15cm high. The main frame 1 can carry 15 reactor boxes 3 (standardized worm composting boxes), covering an area of ​​about 0.23m 2 .

[0037] Aeration pipe 4 and filtrate collection pipe 5 are arranged in the reactor box body 3 of each layer; One side of main body frame 1 is respectively provided with the aeration air supply pipe 6 that ...

Embodiment 2

[0044] The earthworm reactor with frame composite structure is the same as that in Example 1. Using the above-mentioned frame composite structure earthworm reactor to treat municipal sludge in a certain place, the specific steps are:

[0045] Put 2 kg of adult Eisenia annulus into the earthworm habitat bed in each standardized earthworm compost bin, place it under the condition of 18-28 ℃ and avoid light, and cultivate it for 3 days. During this period, water is sprayed on the surface of the earthworm habitat bed every day to keep the humidity. A total of 4 parts of municipal sludge with a moisture content of 87% were added with conditioner A, crushed straw and vermicompost, B, crushed straw and cow dung, C, crushed straw and perishable garbage, and D, crushed straw and blue-green algae. The amount added was the weight of the sludge to be treated 5% and 15% of the earthworm leachate, and then put into the bacterial liquid processed by earthworm leachate, mix well and then deco...

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Abstract

The invention discloses an earthworm reactor with a frame composite structure. The earthworm reactor comprises a main body frame and multiple layers of reactor box bodies positioned in the main body frame, wherein bottom plates are arranged at the bottoms of each layer of the main body frame, the reactor box bodies are movably arranged on the bottom plates of each layer, aeration pipes and filtrate collecting pipes are respectively arranged in each layer of the reactor box body, an aeration air supply pipe connected to each layer of the aeration pipe and a filtrate centralizing pipe connectedto each layer of the filtrate collecting pipe are respectively arranged on one side of the main body frame, the aeration air supply pipe is connected to an external aeration device, and the bottom ofthe filtrate centralizing pipe is connected to an external liquid storage tank. According to the invention, the reactor is short in sludge treatment period, wherein the sludge treatment period can beshortened to 3-5 days, and 20 batches or more of sludge can be continuously treated by feeding earthworms once, so that a large amount of manpower and material resources are saved; and earthworm manure, earthworm filtrate, finished earthworms and other products are conveniently collected, and the problems of odor diffusion and mosquito breeding in sludge treatment through earthworms can be effectively avoided.

Description

technical field [0001] The invention relates to a method for sludge treatment and resource utilization, in particular to an earthworm reactor with a frame composite structure and a method for treating sludge. Background technique [0002] With the development of social economy and urbanization, there are more and more urban sewage treatment plants, and the subsequent sludge treatment and disposal problems have become the focus of people's attention. The water content in the sludge is high, and various harmful microorganisms such as bacteria and viruses are parasitic; at the same time, heavy metal compounds such as zinc, lead, cadmium, and copper are also concentrated in the sludge, and the complexity and variability of the sludge structure make the sludge disposal Dealing with issues is trickier. At present, the sludge disposal technologies mainly used at home and abroad include landfill, incineration, composting and bioremediation. These treatment technologies have their o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/02
CPCC02F11/02C02F3/327Y02W10/10
Inventor 边博胡修韧田甘沛
Owner NANJING NORMAL UNIVERSITY
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