Microorganic aerobic composting method of kitchen garbage

A kitchen waste and aerobic composting technology, which is applied in the direction of organic fertilizers and climate change adaptation, can solve the problems of limited landfill resources, high cost, and difficult site selection, etc., to meet environmental protection and sustainable use. Sustainable development requirements, the realization of water resource recycling, and the effect of improving treatment efficiency

Active Publication Date: 2015-05-06
贵州水木清辉环保科技股份有限公司
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Problems solved by technology

Incineration mainly involves energy consumption and secondary pollution such as dioxin pollution; the landfill method is limited by available land resources, and site selection is difficult, and the cost of preventing landfill gas and leachate pollution is high; feed Poor control will endanger human health through the food chain, such as waste oil, garbage pigs, etc.; the main problem of anaerobic fermentation is methane control, which is very prone to explosion, causing safety concerns

Method used

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  • Microorganic aerobic composting method of kitchen garbage

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Embodiment 1

[0033] Example 1. Treatment of kitchen waste

[0034] according to figure 1 The process shown treats kitchen waste.

[0035] In this embodiment, the moisture content of the kitchen waste is about 85%, the carbon to nitrogen ratio is 8, and the oil content is 15%.

[0036] First, wash the kitchen waste with water to obtain an oil-water mixture and solid waste. In the cleaning step, 1 / 3 of the mass of the kitchen waste is used for cleaning three times. The oil-water mixture is filtered to separate the oil and water to obtain waste oil and waste water. Among them, the waste oil can be used for aviation fuel applications. The reuse water obtained from the waste water after reverse osmosis is used to clean kitchen waste, and the waste is only a small amount of concentrated liquid.

[0037] Crush 2kg of solid waste, and then add 2kg of Chinese fir shavings with a particle size of 0.1~0.2mm, and then add 200mL of bacterial liquid, and perform aerobic composting in an oil bath (natural inte...

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Abstract

The invention discloses a microorganic aerobic composting method of kitchen garbage. The microorganic aerobic composting method comprises the following steps: water is used for cleaning kitchen waste so as to obtain an oil-water mixture and solid garbage; wood chips and alicyclobacillus are added into the solid garbage, and then aerobic composting is carried out so as to obtain a composting product. According to the invention, reducing, harmless and resourceful treatment to kitchen waste is carried out by adopting a microbic aerobic composting way. According to the invention, oil-water separation and reverse osmosis water treatment methods are adopted for treating kitchen waste, so as to reduce oil components in the kitchen waste and improve the composting effect, and the water resource reutilization is achieved. In the aerobic composting treating process, carbon-nitrogen ratio and water content are adjusted by adding cunninghamia lanceolata chips, the high-temperature-resistant and acid-proof alicyclobacillus are used, during linked optimization processes of heating, stirring and time controlling, energy conservation is achieved, the treatment efficiency is improved, the composting product meeting national standards and industrial standards is produced, and requirements of environment protection and sustainable development are met.

Description

Technical field [0001] The invention relates to a method for microbial aerobic composting of kitchen waste. Background technique [0002] Kitchen waste is organic waste, divided into cooked kitchen waste and raw kitchen waste. Cooked kitchen waste includes leftovers, leftovers, vegetable leaves, etc.; raw kitchen waste includes peels, eggshells, tea residues, bones and Shells etc. Kitchen waste generally refers to the raw materials and finished products (cooked food) or residues used in the family's daily diet. [0003] There are mainly the following methods for the treatment of kitchen waste at home and abroad: incineration, landfill, feed conversion, anaerobic fermentation and aerobic composting. Incineration mainly involves secondary pollution issues such as energy consumption and dioxin pollution; landfill methods are limited by available land resources, and site selection is difficult, and the cost of preventing landfill gas and leachate pollution is high; Poor control will...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05F9/04
CPCY02A40/20
Inventor 章真怡白文郭星原侯胜许斌袁雪萍
Owner 贵州水木清辉环保科技股份有限公司
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