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

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...

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