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Magnetic-field-assisted aerobic composting apparatus and method

An aerobic composting and magnetic field-assisted technology, which is applied to fertilization devices, fertilizers made of biological waste, organic fertilizers, etc., can solve the problems of complex and cumbersome system configuration, cumbersome start-up process, and poor product quality, and achieve operability High efficiency, easy equipment maintenance and stable operation

Inactive Publication Date: 2018-11-16
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this system is anaerobic fermentation, and the fermentation temperature is low (30-45°C), which does not completely kill various pathogenic bacteria and insect eggs, and the quality of subsequent fermentation products is poor.
Moreover, the system is divided into anaerobic composting room and electrochemical room, and the system configuration is complex and cumbersome
In addition, the start-up process of the system is cumbersome. The electrochemically active bacteria need to be acclimatized in the early stage, and the electrolyte solution is replaced every 3 to 5 days. After several cycles, the system can be considered to be started.

Method used

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  • Magnetic-field-assisted aerobic composting apparatus and method

Examples

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Effect test

Embodiment 1

[0038] A magnetic field-assisted aerobic composting device, the structure is as follows figure 1 As shown, the composting reactor is rectangular, 1000cm long, 50cm wide, and 60cm high. There is a magnetic field generator next to the composting reactor. The coil diameter of the magnetic field generator is 50cm. 220v AC is used as the input power supply. There are multiple aeration heads, the outer wall of the composting reactor is wrapped with cotton fibers (for the insulation of the composting reactor), and an online thermometer is installed inside the composting reactor (for real-time recording of the temperature change of the composting).

[0039] Composting using the aerobic composting device assisted by the magnetic field as described above comprises the following steps:

[0040] 1) Mix chicken manure and rice husk evenly according to the mass ratio of 5:1, add water and mix evenly, and obtain compost raw materials (water content 60wt%);

[0041] 2) Put the compost raw ma...

Embodiment 2

[0043] A magnetic field-assisted aerobic composting device, the structure is as follows figure 1As shown, the composting reactor is rectangular, 1000cm long, 50cm wide, and 60cm high. There is a magnetic field generator next to the composting reactor. The coil diameter of the magnetic field generator is 50cm. 220v AC is used as the input power supply. There are multiple aeration heads, the outer wall of the composting reactor is wrapped with cotton fibers (for the insulation of the composting reactor), and an online thermometer is installed inside the composting reactor (for real-time recording of the temperature change of the composting).

[0044] Composting using the aerobic composting device assisted by the magnetic field as described above comprises the following steps:

[0045] 1) Mix chicken manure and rice husk evenly according to the mass ratio of 5:1, add water and mix evenly, and obtain compost raw materials (water content 60wt%);

[0046] 2) Put the compost raw mat...

Embodiment 3

[0048] A magnetic field-assisted aerobic composting device, the structure is as follows figure 1 As shown, the composting reactor is rectangular, 1000cm long, 50cm wide, and 60cm high. There is a magnetic field generator next to the composting reactor. The coil diameter of the magnetic field generator is 50cm. 220v AC is used as the input power supply. There are multiple aeration heads, the outer wall of the composting reactor is wrapped with cotton fibers (for the insulation of the composting reactor), and an online thermometer is installed inside the composting reactor (for real-time recording of the temperature change of the composting).

[0049] Composting using the aerobic composting device assisted by the magnetic field as described above comprises the following steps:

[0050] 1) Mix pig manure and rice husk uniformly according to the mass ratio of 5:1, add water and mix uniformly to obtain compost raw materials (water content 60wt%);

[0051] 2) Put the compost raw ma...

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Abstract

The invention discloses magnetic-field-assisted aerobic composting apparatus and method. The aerobic composting apparatus includes a composting reactor, a magnetic field generator, and an aerator. Themagnetic field generator is located outside the composting reactor and the aerator is arranged on the bottom of the composting reactor. The aerobic composting method includes steps of: (1) uniformlymixing an organic solid waste with auxiliary materials and adding water with uniform mixing to prepare a composting raw material; (2) adding the composting raw material to the aerobic composting apparatus, applying the magnetic field to perform continuous aeration, thus performing the composting. The apparatus and method can promote metabolism of microorganisms in the heap and quickly increase composting temperature, thereby reducing composting period and increasing compost maturity. The apparatus and the method, from the source, reduce generation of nitrous oxide during the composting processand reduce discharge of greenhouse gases, and also improve content of nitrogen in the composting product and increase fertility of same. The method is simple in operation and has good operability andgreat adaptability.

Description

technical field [0001] The invention relates to a magnetic field-assisted aerobic composting device and method, belonging to the technical field of organic solid waste treatment. Background technique [0002] There are many kinds of organic solid waste, including kitchen waste, feces, sludge, corn cobs, straw, rice husk, etc. With the development of the economy and the improvement of living standards, the amount of organic solid waste is increasing. It is predicted that with the development of production and the further increase of population, the production of organic solid waste will increase at an average annual rate of 5% to 10%, which will cause serious environmental problems, such as land occupation, soil pollution and groundwater pollution. , spreading diseases, etc. Practice has shown that resource utilization and harmless treatment of organic solid waste are effective ways to control environmental pollution, improve the environment, develop circular economy, and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/02C05F15/00
CPCC05F3/00C05F17/30C05F17/907C05F5/002C05F7/00C05F11/00
Inventor 唐家桓周顺桂李翔
Owner FUJIAN AGRI & FORESTRY UNIV
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