Kitchen waste resource utilization and non-pollution treatment system and method

Abstract

The invention discloses a kitchen waste resource utilization and non-pollution treatment system and a method. The kitchen waste resource utilization and non-pollution treatment system at least comprises a kitchen waste pre-treatment workshop, a kitchen slurry fermentation workshop, a biological forage preparation and storage workshop, and a biotransformation workshop; the kitchen waste pre-treatment workshop is used for impurity removing, grease separation, and smashing of kitchen waste so as to obtain a kitchen slurry with a water content ranging from 75 to 85%; the kitchen slurry fermentation workshop is used for anaerobic fermentation deodorization of the kitchen slurry, wherein the kitchen slurry is mixed with a fermentation inocula, 3 to 5kg of the fermentation inocula is added into each 100kg of the kitchen slurry; the biological forage preparation and storage workshop is used for mixing the fermented kitchen slurry with accessory ingredients so as to obtain a biological forage with a water content ranging from 70 to 80%; and the biotransformation workshop is used for realizing automatic feeding of resource insect larvae, and the resource insect larvae are used for conversionof the biological forage into insect proteins and insect manure. The above kitchen waste resource utilization and non-pollution treatment system is capable of realizing kitchen waste resource utilization and non-pollution treatment.

Description

technical field [0001] The invention belongs to the technical field of environmental protection engineering, and relates to resource utilization and treatment of kitchen waste, in particular to a system for resource utilization and pollution-free treatment of kitchen waste, which is used for resource utilization of kitchen waste And methods of pollution-free disposal. Background technique [0002] With the rapid development of my country's economy, the living standards of urban residents have been rapidly improved, and the consumption structure of residents has undergone significant changes. The development of the catering industry has increased the consumption of edible oil, meat, eggs, and milk, especially the consumption of edible oil. The increase is particularly prominent. According to statistics, my country's edible oil consumption reached 23.74 million tons in 2010, and my country's per capita consumption of edible vegetable oil is close to the world's average level o...

AI Technical Summary

Problems solved by technology

[0006] (1) The content of oil and salt is high. The oil and salt content of kitchen waste in my country is generally higher than that in Europe and the United States. The average oil content of kitchen waste in my country is about 5%-8%. The traditional treatment process is difficult, such as high temperature is good Oxygen composting process and anaerobic fermentation process, high fat and high salt content in kitchen waste are not conducive to the growth of microorganisms, restricting the effect of high-temperature aerobic composting process and anaerobic fermentation process

[0007] (2) High moisture content, which accounts for 80% to 90% of the total weight of kitchen waste, which brings difficulties to the collection and transportation of kitchen waste. If it is mixed with ordinary domestic waste, it will also increase The moisture content of ordinary garbage is reduced, and the calorific value is reduced, which creates certain difficulties for the application of garbage incineration technology.

[0008] (3) The content of organic matter is high. Under high temperature conditions, it is easy to rot and deteriorate, producing odor, which poses a threat to the health of residents living near the collection site

Both the composting method and the fermentation hydrogen production method have problems such as long cycle, low efficiency, and low degree of resource utilization.

However, the direct landfill and incineration methods will cause environmental pollution and do not conform to the concept of circular economy and sustainable development.

Images