Household food waste microbial decomposition device

Abstract

The invention discloses a household food waste microbial decomposition device. According to the characteristic of high water content of household kitchen wastes, the device utilizes a partition platefor separating solid raw materials and liquid raw materials of household kitchen wastes and a strain is sprayed for fermentation. A sealing device and an exhaust pipe with a U-shaped water seal are installed on a fermentation barrel lid so that an anaerobic fermentation environment is ensured. Gas produced by fermentation is discharged through the water seal. Through the water seal, air in a roomdoes not enter the fermentation barrel so that the anaerobic fermentation environment is guaranteed and the fermentation process is smooth. An expandable air bag is installed at the outer end of the U-shaped water seal pipe opening and prevents gas produced by fermentation from polluting air in a gas pollution chamber. The fermentation exhaust gas is collected. After seal fermentation for 1-2 weeks, a yeast flavor or a wine flavor is produced so that the fermentation is finished. The fermented material can be used as organic fertilizer so that the harmless recovery and recycling of household kitchen wastes are realized.

Description

technical field [0001] The invention belongs to the field of household kitchen waste treatment, and in particular relates to a household kitchen waste microbial decomposition device. Background technique [0002] Food waste must be produced in people's daily life. Food waste has the following general characteristics: 1. High water content: The water content of food waste is high (the mass fraction of water is greater than 80%), which makes it difficult to collect , transportation and handling are very difficult. Garbage infiltration water can pollute surface water and groundwater through surface runoff and infiltration, and the calorific value per unit mass of food waste is about 2100kJ / kg, which cannot meet the calorific value requirements of waste incineration power generation. 2. Perishable: Food waste has a high content of organic matter (accounting for more than 95% of the dry matter mass), which is easy to rot and smell, and it is easy to breed germs and cause the spr...

AI Technical Summary

Problems solved by technology

Garbage infiltration water can pollute surface water and groundwater through surface runoff and infiltration, and the calorific value per unit mass of food waste is about 2100kJ / kg, which cannot meet the calorific value requirements of waste incineration power generation

2. Perishable: The organic content in kitchen waste is high (accounting for more than 95% of the dry matter mass), which is easy to rot and smell, and easy to breed germs, which will cause the spread of diseases

However, the direct discharge of food waste is likely to generate sewage and odor, breed bacteria, mosquitoes and fly, and cause the spread of diseases. Oil pollution will condense into blocks, causing drainage pipes to block, reducing the drainage capacity of urban sewers, and the high oil content of food waste is also increasing. loads of urban sewage treatment plants and landfills

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