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Biological drying and decomposition promoting treatment process for perishable garbage added with sterile agent

A bio-drying and treatment process technology, applied in the treatment of biological organic parts, fertilizers made from biological wastes, climate change adaptation, etc. Running cost, reducing processing cost, solving the effect of large floor space

Active Publication Date: 2022-03-18
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the problems of poor dehydration effect, long fertilization cycle, and low degree of decomposition existing in the fertilization process of perishable waste with high moisture content, the present invention provides a bio-drying process for promoting decomposition of perishable waste with the addition of aseptics

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  • Biological drying and decomposition promoting treatment process for perishable garbage added with sterile agent

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Embodiment

[0051] A perishable waste treatment station conducts biological drying to promote decomposing perishable waste at room temperature (20°C), and adopts a two-phase integrated pilot equipment for biological drying and decomposing with a daily processing capacity of 1000-2000kg. The integrated pilot equipment includes biological drying equipment and decomposing fermentation equipment. The biological drying equipment includes an insulated airtight chamber with a material inlet and outlet. The airtight chamber has a built-in mixer that can fully mix materials, and an aeration pipeline is laid at the bottom. , the top is equipped with ventilation and dehumidification equipment. The discharge port of the biological drying equipment is directly connected to the feed port at the front end of the decomposing fermentation equipment. The decomposing and fermenting equipment includes an insulated and sealed warehouse with an inlet and outlet. The bottom of the sealed warehouse is equipped w...

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Abstract

The invention discloses a biological drying and decomposition promoting treatment process for perishable garbage added with a sterile agent. According to the treatment process, after perishable garbage is pretreated, the perishable garbage is prepared into the decomposed fertilizer through two stages of full-mixing biological drying and layered rapid decomposition. According to the invention, a linkage effect of'ventilation aeration-mechanical stirring-water vapor extraction 'is adopted, and the amount of aerobic microorganisms is rapidly increased, so that the material heating and water removal time is shortened. The environment suitable for growth, reproduction and metabolism of thermophilic microorganisms can be maintained, the high-temperature fermentation time is prolonged, the material decomposition degree is improved, perishable garbage is rapidly converted into the decomposed fertilizer with the plant seed germination index higher than 70% and the water content lower than 30% under the condition that no exogenous microbial agent is added, the whole period only needs 7-10 days, and the cost is low. The bottleneck problems of high fungicide cost, poor dehydration effect, long fertilizer forming period, low decomposition degree and the like in the perishable garbage fertilization process are effectively solved, and reference is provided for efficient and low-consumption rapid treatment of perishable garbage in engineering practice.

Description

technical field [0001] The invention belongs to the field of resourceful treatment of perishable garbage, and in particular relates to a process for bio-intensified decomposition-promoting treatment of perishable garbage with the addition of a sterile agent. Background technique [0002] With the advancement of domestic waste classification and the improvement of classification quality, perishable waste such as kitchen waste, kitchen waste, fruit and vegetable waste is showing a continuous increasing trend. These perishable wastes have pollution properties such as high moisture content, extremely perishable and smelly, and breed mosquitoes. They are also considered to be a huge biological resource bank because of their high organic matter content and rich nutrients. Therefore, for perishable waste treatment equipment and technology, the key to long-term disposal of perishable waste is to quickly realize the stabilization and reduction of perishable waste in order to alleviat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/00C05F5/00C05F9/00
CPCC05F17/00C05F5/002C05F9/00C05F5/008C05F11/00Y02A40/20Y02W30/40
Inventor 吴伟祥辛立庆王昊书莫洁菲阮诗婷
Owner ZHEJIANG UNIV
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