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Device and method for passivating heavy metals by fermenting and composting field livestock and poultry breeding wastes in cold regions

A technology for livestock and poultry breeding and waste, which is applied in the field of field livestock and poultry breeding waste fermentation and composting passivation heavy metal devices in cold regions, can solve the problems of high cost, inability to passivate heavy metals, and difficulty in raising the temperature of aerobic composting in the field. Low cost and short composting time

Pending Publication Date: 2020-08-28
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a device and method for fermenting and composting heavy metal passivation of field livestock and poultry breeding waste in cold areas in order to solve the problems of difficulty in warming up aerobic composting in the field under low temperature conditions in cold areas, inability to passivate heavy metals, and high cost

Method used

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  • Device and method for passivating heavy metals by fermenting and composting field livestock and poultry breeding wastes in cold regions
  • Device and method for passivating heavy metals by fermenting and composting field livestock and poultry breeding wastes in cold regions

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specific Embodiment approach 1

[0026] Specific implementation mode one: combine figure 1 Describe this embodiment, this embodiment comprises fermenting vat 7, lower disc 1, upper disc 2, cover plate 3 and hinge 4, the diameter of the upper opening of fermenting vat 7 is greater than the diameter of the lower opening, that is, the diameter of the upper opening is 1.8m~ 2.2m, the diameter of the lower opening is 1.6m~2m, the height of the fermenter 7 is 1m, several round holes 5 are arranged on the barrel wall of the fermenter 7, the round holes 5 are used for ventilation, and the upper circular plate 2 consists of two Composed of semicircles and connected by hinge 4, upper circular plate 2 is arranged at the upper port of fermentation tank 7, upper circular plate 2 and fermentation tank 7 are connected by iron wire, lower circular plate 1 is composed of two semicircles and connected by hinge 4, and the lower circular plate 2 is connected by hinge 4. The circular plate 1 is arranged at the lower port of the f...

specific Embodiment approach 2

[0030] Specific implementation mode two: combination figure 1 and figure 2 Describe this implementation mode, this implementation mode is realized through the following steps:

[0031] Step 1. Excavate the fermentation port B: excavate the fermentation port B in the field. The fermentation port B is cylindrical. The diameter of the upper end of the fermentation port B is larger than the diameter of the lower end, that is, the diameter of the upper end is 1.8m~2.2m, and the diameter of the lower end is 1.6m~2m. The height of fermentation port B is 2.4m;

[0032] Step 2. Excavate fuel channel A and smoke outlet channel C: Excavate fuel channel A and smoke outlet channel C on the left and right sides of fermentation port B respectively. The distance between fuel channel A, smoke outlet channel C and fermentation port B is 0.5m. The shape of the fuel channel A is a cuboid with a length of 0.5m, a width of 0.3m and a height of 2.4m. The shape of the smoke outlet channel C is a c...

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Abstract

The invention discloses a device and a method for passivating heavy metals by fermenting and composting livestock and poultry breeding wastes in a cold region, and aims to solve the problems of difficulty in field aerobic composting temperature rise, incapability of passivating heavy metals, high cost and the like in a cold region low-temperature condition. In the device, the diameter of an upperopening of a fermenter is larger than that of a lower opening, the height of the fermenter is 1 m, round holes are formed in the wall of the fermenter, an upper round plate and a lower round plate arearranged at the upper end opening and the lower end opening of the fermenter respectively and connected with the fermenter through iron wires, and the upper round plate is covered with a cover plate.The method comprises the following steps: 1, digging a fermentation port; 2, digging a fuel channel and a smoke outlet channel; 3, excavating a lower combustion port and an upper combustion port; 4,excavating a lower flue and an upper flue; 5, placing a fermentation barrel; 6, heating the lower surface of the fermentation barrel; 7, adding livestock and poultry manure and crushed straw; 8, heating the upper surface of the fermentation barrel; and 9, stabilizing heavy metals in the livestock and poultry breeding wastes by using biomass carbon. The device and method are used for field composting.

Description

technical field [0001] The invention relates to the field of organic waste treatment, in particular to a heavy metal passivation device and method for fermenting and composting field livestock and poultry breeding waste in cold regions. Background technique [0002] Under low temperature conditions in cold regions, it is difficult to start the temperature of aerobic composting in the field, and the heavy metals added to livestock and poultry farming waste are highly active. If the heavy metals are not passivated, the quality of crops will be affected and human health will be threatened. In order to achieve the above functions, the traditional method is to produce biomass carbon indoors to stabilize heavy metals; indoors through warming facilities or thermal insulation design, artificially add some low-temperature fermentation bacteria agents to achieve the temperature of compost. These undoubtedly increase the processing cost, which is not conducive to the harmless applicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/60C05F17/964C05F17/90C05F17/10C05G3/80
CPCC05F17/60C05F17/964C05F17/90C05D9/00C05F17/10C05G3/80C05F3/00C05F11/00Y02W30/40
Inventor 于锐王洋于泳崔政武
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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