Method for aerobic quick composting of urban domestic sludge as well as device and using method thereof

A technology for municipal domestic sludge and composting, which is applied in the direction of fertilization equipment, preparation and application of organic fertilizers, etc., can solve the problems of nitrogen nutrition loss, compost quality decline, high operating cost, etc., achieve simple methods, improve treatment effects, and improve The effect of composting environment

Inactive Publication Date: 2011-05-18
INST OF AGRI ENG TECH FUJIAN ACAD OF AGRI SCI +1
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Problems solved by technology

[0002] Composting treatment to produce organic fertilizer is the best way to dispose of solid organic waste. Composting treatment can be mainly divided into aerobic composting and anaerobic composting. The decomposition products of anaerobic composting microorganisms usually contain NH 4 、CH 4 , and other malodorous gases, causing environmental pollution. At the same time, it is easy to caus

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  • Method for aerobic quick composting of urban domestic sludge as well as device and using method thereof
  • Method for aerobic quick composting of urban domestic sludge as well as device and using method thereof
  • Method for aerobic quick composting of urban domestic sludge as well as device and using method thereof

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[0021] The present invention will be further described below with reference to the drawings and implementation examples.

[0022] The present invention provides a method for aerobic and rapid composting of urban domestic sludge, which is characterized by comprising the following steps:

[0023] (1) The objects to be composted and fermented are mixed evenly according to the compost formula ratio, then sent to the fermentation tank and piled to a height of 1.2~1.5m;

[0024] (2). Blow the exhaust gas of the drying furnace from the bottom of the pile to the pile evenly, and raise the temperature of the pile to 6~10℃, and then stop blowing the exhaust gas;

[0025] (3) When the stack temperature exceeds 55°C, the tail gas of the drying furnace is blown evenly from the bottom of the stack to the stack;

[0026] (4) When the stack temperature exceeds 65°C, blow the air from the bottom of the stack to the stack evenly to reduce the stack temperature to below 55°C;

[0027] (5) When the temperat...

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Abstract

The invention relates to a method for aerobic quick composting of urban domestic sludge as well as a device and a using method thereof. In the invention, an air duct is installed at the bottom of a fermentation tank, and the temperature of the fermentation tank is controlled by using a draught fan, therefore, a composting treatment effect is enhanced, the compost environment is improved, the quality of a compost product is improved; and the method for aerobic quick composting of the urban domestic sludge has important meaning for promoting organic solid wastes to realize recycling of cultivated lands.

Description

technical field [0001] The invention relates to a method for rapid aerobic composting of urban domestic sludge, a device and a use method thereof, and is particularly useful for rapid and harmless treatment of organic waste. Background technique [0002] Composting treatment to produce organic fertilizer is the best way to dispose of solid organic waste. Composting treatment can be mainly divided into aerobic composting and anaerobic composting. The decomposition products of anaerobic composting microorganisms usually contain NH 4 、CH 4 , and other malodorous gases, causing environmental pollution. At the same time, it is easy to cause nitrogen nutrition loss and reduce the quality of compost. Therefore, most people choose aerobic composting. Aerobic composting is divided into static aerobic composting and dynamic aerobic composting. Composting, dynamic aerobic composting, on the one hand, requires a lot of equipment, on the other hand, it also needs a lot of power in the ...

Claims

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Application Information

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IPC IPC(8): C05F17/00
CPCY02W30/40
Inventor 林代炎叶美锋翁伯琦吴飞龙李章汀林鸿雁
Owner INST OF AGRI ENG TECH FUJIAN ACAD OF AGRI SCI
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