Device and method for treating sludge through earthworm cultivation

Abstract

The invention belongs to the field of sludge treatment, and particularly relates to a device and a method for treating sludge through earthworm cultivation. An earthworm cultivation device comprises abracket, a plurality of transporting and cultivating units, a feeding end and a discharging end; the plurality of transporting and cultivating units are arranged on the bracket at up-and-down intervals; the feeding end and the discharging end are arranged at the left side end and the right side end of the transporting and cultivating units correspondingly; each transporting and cultivating unit comprises a supporting net, chains, a gear and a motor; the supporting net is used for placing sludge and annularly closed in the left-and-right direction; the chains are arranged at the front end andthe back end of the supporting net and used for driving the supporting net to move; the gear is used for driving the chains to move; the motor is used for driving the gear; a supporting frame is arranged at the feeding end; a foldable transporting plate corresponding to each transporting and cultivating unit is arranged on the supporting frame. Compared with the existing equipment, the earthworm cultivation device adopts automation, is simple in structure, easy to operate and low in manpower demand, and greatly reduces labor cost. Moreover, the occupied area is reduced, the earthworm cultivation efficiency can be effectively improved, the cultivation time is shortened, the yield of the earthworms is increased, energy consumption is reduced and the cultivation cost is reduced.

Description

technical field [0001] The invention belongs to the field of sludge treatment, and in particular relates to an earthworm breeding device and method for treating sludge. Background technique [0002] With the advancement of agricultural science and technology, the output of agricultural products has increased significantly. In addition, with the improvement of people's living standards, the rate of urban greening has continued to increase, and urban water consumption has continued to increase. Therefore, more and more urban sludge, agricultural waste and landscaping waste As a result, these wastes not only occupy a large area of ​​land, but also cause serious environmental pollution and affect the image of the city. In order to solve this problem, landfill and incineration are commonly used at present. Because the waste contains a large amount of biomass waste, it degrades slowly during the landfill process. In addition, leachate and biogas will be produced after its corrupt...

AI Technical Summary

Problems solved by technology

The above method has the characteristics of simple equipment, but the box-type culture bed has small volume, low output, and cumbersome operation process; the pond-type culture bed occupies a large area, serious waste of water resources, easy to produce anaerobic dead ends, and slow growth of earthworms; the tank-type culture bed Distributed in the field, the temperature is difficult to control, the waste of water resources is serious, and the phenomenon of earthworm escape is easy to occur, which seriously affects the production of earthworms

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