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Solid waste co-composting stepwise regulation and control system and method

A technology for solid waste and waste, which is applied in the field of gradual adjustment and control of solid waste combined composting, can solve the problems of complexity and difficulty in adjustment, and achieves a wide range of sources, low prices, and inhibition of nitrogen loss. Effect

Inactive Publication Date: 2012-04-11
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

In order to achieve a better composting effect, it is necessary to create good conditions for the life activities of microorganisms during the treatment process, and strive to speed up the composting and improve the fertilizer efficiency. However, the special properties of kitchen waste and agricultural waste make this process extremely complicated. It is very difficult to adjust and requires further development of an appropriate treatment process

Method used

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  • Solid waste co-composting stepwise regulation and control system and method
  • Solid waste co-composting stepwise regulation and control system and method

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Embodiment 2

[0022] Embodiment 2 Combined composting step-by-step adjustment and control experiment

[0023]Crush potatoes, carrots, cooked rice, meat, etc., and prepare simulated kitchen waste with a weight ratio of 6:9:10:2:2 from the crushed potatoes, carrots, cooked rice, meat, and inoculated soil. The particle size is not greater than 5mm, and the kitchen waste is added to the kitchen waste raw material storage 1; straw is selected as a typical crop waste, and it is crushed so that the particle size of the material is not greater than 5mm, and then the straw is put into the crop waste raw material storage 12 middle. According to the weight ratio of 2.5:1, take out 10kg of kitchen waste from the kitchen waste raw material storage 1 and 4kg from the crop waste raw material storage 12, add them to the composting reaction bucket 8, and mix the materials evenly with the mixing agitator 5 The air distribution plate 11 is set in the composting reaction barrel 8, and the leachate generated i...

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Abstract

The invention discloses a solid waste co-composting stepwise regulation and control system and method, and belongs to the technical field of solid waste treatment. The system is composed of a kitchen waste raw material storage device, an agricultural waste raw material storage device, a raw material regulation tank, a waste gas collection and treatment device, a uniform mixing stirrer, a composting product storage device, a reused composting product storage device, a composting reaction barrel, a ventilation device, a percolate collection device and an air distributing plate. The method comprises the following steps: adding fly ash and plant ash in kitchen wastes, composting the kitchen wastes, then adding potassium dihydrogen phosphate and ferrous sulphate, transferring and collecting a part of the composting product after the composting reaction, and transferring the other part of the composting product to the reused composting product storage device to be used as the inoculum of the follow-up composting. The method positively utilizes industrial wastes, thus the microbial activity can be improved, the stabilization time of composting can be shortened and the co-composting degradation efficiency of kitchen wastes and agricultural wastes can be increased.

Description

technical field [0001] The invention belongs to the technical field of solid waste treatment, and in particular relates to a system and method for gradually adjusting and controlling solid waste combined composting. Background technique [0002] With the development of the economy, the continuous improvement of the consumption structure and consumption level, the variety and quantity of solid waste are increasing. Every year, a large amount of municipal solid waste, agricultural waste and industrial waste will be produced in our country. Among them, the organic part of urban domestic waste has increased significantly, and kitchen waste constitutes the most important component. Kitchen waste is a kind of organic solid waste formed by residents in the process of living consumption. Compared with other wastes, it has moisture and High content of organic matter, rich in nutrients and other characteristics. At present, the daily production of kitchen waste in my country exceeds ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/00C05F17/02C05F9/04
CPCY02A40/20Y02W30/40
Inventor 安春江黄国和张晓东姚尧李晟
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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