Choose the appropriate method according to different application scope and actual situation. The treatment methods mainly include physical method, chemical method and biological method. Specific treatment technologies include landfill, incineration, composting, fermentation, etc. In short, its resource reuse shows a diversified trend. The following is for you, for your reference.
as follows
1. Food waste treatment technology-feed technology
Food waste contains a lot of organic nutrients, and its feed has considerable advantages. Forage can be divided into biological method and physical method.
biological method: using microbial cells to treat kitchen waste, using the growth, reproduction and metabolism of microorganisms to accumulate useful cells, enzymes and intermediates, and drying them to make protein feed.
physical method: directly dehydrate the kitchen waste, then dry and disinfect it, and make it into feed after crushing. Dehydration methods include conventional high-temperature dehydration, fermentation dehydration and frying dehydration.
according to the requirements of technology selection, a production process of protein feed by bio-fermentation with kitchen waste as raw material is designed, as shown in the figure:
Detailed explanation of kitchen waste treatment process flow chart 1
2. Kitchen waste treatment process-incineration method
Kitchen waste is mixed with domestic waste for incineration or a waste incineration plant is established to generate electricity through the heat generated by waste incineration.
3. The kitchen waste treatment process-composting method
relies on microorganisms such as bacteria, actinomycetes and fungi which are widely distributed in nature. Under the condition of manual control, the water of restaurant waste residue is evaporated, dried and ground, and the restaurant waste residue is transformed into organic compound fertilizer for agricultural production through a series of treatment procedures to prevent the generation of harmful gases.
Composting treatment mainly includes aerobic composting and earthworm composting.
4, kitchen waste treatment process-anaerobic fermentation
anaerobic process refers to the use of garbage to produce biogas and convert it into electricity and gas, and the residue produced in the anaerobic digestion tank is fermented and composted for the second time. There are dry and wet processes commonly used in the world.
biogas, hydrogen, ethanol or lactic acid can be obtained by anaerobic digestion of kitchen waste.
The process flow of kitchen waste treatment is as follows:
Detailed explanation of the process flow of kitchen waste treatment
5. Kitchen waste treatment process-production of biodiesel
Biodiesel refers to diesel oil produced by transesterification with animal and vegetable fats as raw materials, also known as renewable fuel. Waste cooking oil is made into bio-oil by acid and alkali two-step method, separation reaction method and complete catalysis method.
The process flow of the kitchen waste treatment is as follows:
The process flow of the kitchen waste treatment is detailed in Figure 3
6. The kitchen waste treatment process-biochemical processor
In the biochemical treatment device, high-temperature composite microbial strains with strong vitality and proliferation ability in nature are selected to ferment organic wastes such as food and kitchen waste at high temperature and high speed, so that various organic substances can be degraded and transformed.
7. Processing technology of kitchen waste-landfill method
Landfill treatment is a simple and common garbage treatment method. But it will limit the comprehensive recycling of garbage resources, and occupy a lot of land and pollute the environment. ?