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Electric composting system and method based on self-powered design

A self-powered, composting technology, applied in the field of composting, can solve the problems of inconvenient application on site and ineffective use of heat, and achieve the effects of accelerating compost maturity, shortening composting cycle, and reducing nitrous oxide emissions

Pending Publication Date: 2019-10-29
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, applying a DC electric field requires chemical workstations and power input, and the heat generated cannot be effectively utilized, which brings great inconvenience to field applications.

Method used

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  • Electric composting system and method based on self-powered design
  • Electric composting system and method based on self-powered design
  • Electric composting system and method based on self-powered design

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] 1) Design of composting reactor:

[0043] A square composting reactor is used: the total effective volume is about 70L, the length is 40cm, the width is 30cm, and the height is 80cm. The material is high-density polystyrene foam board with a thickness of 5cm. A stainless steel plate is placed in the length direction of the reactor as the positive and negative electrodes, and the size is 40*50cm. In the middle of the composting reactor, a self-powered module is placed to make full use of the heat generated by the compost to generate electricity, and then supply power to the positive and negative electrodes; at the same time, it also supplies power to the small aeration pump for aeration. An online thermometer is set in the barrel to record the temperature change of the compost in real time.

[0044] 2) Self-powered module design:

[0045] The thermoelectric power generation piece adopts the power generation piece of the model TGM-199-2.0-1.2, a total of 12 pieces; the...

Embodiment 2

[0051] 1) Design of composting reactor:

[0052] A square composting reactor is used: the total effective volume is about 70L, the length is 40cm, the width is 30cm, and the height is 80cm. The material is high-density polystyrene foam board with a thickness of 5cm. A stainless steel plate is placed in the length direction of the reactor as the positive and negative electrodes, and the size is 40*50cm. In the middle of the composting reactor, a self-powered module is placed to supply power to the positive and negative electrodes, and at the same time, it also supplies power and aeration to the small aeration pump. At the same time, an online thermometer is set in the barrel to record the temperature change of the compost in real time.

[0053] 2) Self-powered module design:

[0054] The thermoelectric power generation piece adopts the power generation piece of the model TGM-172-2.0-1.2, a total of 10 pieces; the heating surface of the power generation piece is bonded to the...

Embodiment 3

[0060] 1) Design of composting reactor:

[0061] A cylindrical composting reactor is used: the total effective volume is about 100L, the diameter is 50cm, and the height is 80cm. The material is plastic and the thickness is 1cm. A stainless steel plate is placed around the reactor as the positive electrode; an aluminum rod is placed in the center of the stack as the negative electrode. In the middle of the composting reactor, a self-powered module is placed to supply power to the positive and negative electrodes, and at the same time, it also supplies power and aeration to the small aeration pump. At the same time, an online thermometer is set in the barrel to record the temperature change of the compost in real time.

[0062] 2) Self-powered module design:

[0063] There are two sets of thermoelectric power generation sheets, one group adopts the generation sheet of model TGM-199-2.0-1.2, a total of 10 pieces, and supplies power to the positive and negative electrodes; the...

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Abstract

The invention discloses an electric composting system and method based on self-powered design. The electric composting system comprises a composting reactor, a self-powered module, a positive pole sheet, a negative pole sheet and an aeration tube, a positive pole and a negative pole at the output end of the self-powered module are connected with the positive pole sheet and the negative pole sheetcorrespondingly, the self-powered module, the positive pole sheet and the negative pole sheet are placed in a pile body, the self-powered module comprises temperature-difference power generating sheets, heat collecting sheets and hollow tubes, the heat collecting sheets and the hollow tubes are located on the two sides of the temperature-difference power generating sheets, a gas outlet of the aeration tube is formed in the composting reactor, and a gas inlet of the aeration tube is formed outside the composting reactor. According to the electric composting system, the self-powered module is utilized to provide a power source for electrode sheets in the pile body, an electric field is formed in the pile body, electron, ion and charge moving is promoted, thus the oxygen utilization rate is increased, the composting temperature is increased, the composting period is shortened, compost maturity is accelerated, and the cost is saved. The electric composting system and method can be widely applied to the technological field of composting.

Description

technical field [0001] The invention relates to the technical field of composting, in particular to an electric composting system and method based on a self-powered design. Background technique [0002] Organic solid waste is a kind of organic matter containing a large amount of carbon, hydrogen and other elements. With the rapid development of economy, its production has exploded, and it has become the focus of public attention. Organic solid waste is a kind of polluting waste and also a potential resource. Aerobic composting technology is an effective technology for resource utilization of organic solid waste. It has the advantages of low cost, simple operation, and subsequent products obtained from treatment can be used as organic fertilizer for secondary use. This technology is widely used in the treatment and resource utilization of organic solid waste been widely used in. [0003] The basic principle of aerobic composting is that under aerobic conditions, aerobic mic...

Claims

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Application Information

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IPC IPC(8): C05F17/02C05F15/00C05F17/00H02N11/00
CPCC05F3/00C05F17/00H02N11/00C05F17/90C05F17/979C05F17/964C05F5/002Y02W30/40
Inventor 唐家桓上官华媛吴佳雄周顺桂
Owner FUJIAN AGRI & FORESTRY UNIV
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