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Multilayer aerobic fermentation system and fermentation method thereof

An aerobic fermentation and system technology, applied in liquid/slurry treatment, application, organic fertilizer and other directions, can solve the problems of high cost of conditioner dosage and large nitrogen loss, and achieve a single composition, reduce treatment costs, and improve fermentation. The effect of efficiency

Active Publication Date: 2017-11-17
HENAN NORMAL UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a multi-layer aerobic fermentation system and its fermentation method to solve the problems of large nitrogen loss and high cost of conditioner addition in the sludge aerobic fermentation process

Method used

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  • Multilayer aerobic fermentation system and fermentation method thereof
  • Multilayer aerobic fermentation system and fermentation method thereof
  • Multilayer aerobic fermentation system and fermentation method thereof

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Embodiment

[0021] The commercially available cylindrical bamboo charcoal is broken into semi-cylindrical bamboo charcoal, and then dewatered sludge and bamboo charcoal layers are alternately layered on the inside of the fermentation tank to ensure that a layer of bamboo charcoal is arranged at the ventilation opening at the bottom of the fermentation tank. The layer is composed of a plurality of semi-cylindrical bamboo charcoal horizontal single layers with downward openings, and the thickness of each layer of dewatered sludge is 2-3cm, and then the laid bamboo charcoal layer and dewatered sludge are subjected to aerobic fermentation, and the ventilation rate is 1m 3 / min, the fermentation cycle is 28d.

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Abstract

The invention discloses a multilayer aerobic fermentation system and a fermentation method thereof, and belongs to the technical field of aerobic composting. The technical scheme is characterized in that the multilayer aerobic fermentation system comprises a fermentation tank, wherein sludge layers and bamboo charcoal layers are alternately arranged inside the fermentation tank from top to bottom, the bottom layer is the bamboo charcoal layer, the bamboo charcoal layer is formed by horizontally arranging a plurality of semi-cylindrical bamboo charcoal with a downwardly opening in a single layer manner, and the upper portion and the lower portion of the fermentation tank are respectively provided with a gas inlet and a gas outlet. The invention further specifically discloses the fermentation method of the multilayer aerobic fermentation system. According to the present invention, the used separation material bamboo charcoal can reduce the ammonia volatilization and reduce the total nitrogen loss, and has the porous structure compared to the traditional conditioner wood chips so as to effectively adsorb the odor generated during the fermentation process, the composition of the fermentation substrate is simple, the condition that the substrate contains a large number of the difficultly-degraded materials due to the addition of wood chips and other conditioners is avoided, and the fermentation efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of aerobic composting, and in particular relates to a multi-layer aerobic fermentation system and a fermentation method thereof. Background technique [0002] With the development of urbanization in my country, the discharge of urban domestic sewage is increasing, and the number of sewage treatment facilities is also increasing. The dewatered sludge produced in the accompanying sewage treatment process has become a new environmental problem. Therefore, the recycling of urban sewage sludge has become a new environmental research hotspot. [0003] Among the many sludge recycling methods, the aerobic sludge fermentation method has been favored by the advantages of low capital investment and operating costs, high degree of sludge stabilization and harmlessness, convenient operation, and agricultural application of the fermented products. people's attention. However, a large amount of ammonia gas will be genera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F7/00C05F17/00
CPCC05F7/00C05F17/40Y02W30/40Y02A40/20
Inventor 李云蓓黄标兵鲍林林靳鹏飞浮豪杰卫栋慧
Owner HENAN NORMAL UNIV
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