With the further strengthening of household waste classification, the recycling of resources and energy in food waste is the future development trend. The pollution during the recycling of food waste mainly includes odor pollution and waste water pollution. The odor pollution is mainly generated during the collection and transportation of food waste and the recycling of food waste. The waste water pollution mainly comes from the infiltration of the generated waste water in the collection, storage and transportation of food waste and the process of resource utilization. The treatment of odor and waste water in the process of food waste recycling is directly related to the follow-up treatment and Food waste treatment equipment Market promotion.

First, odor pollution and odor gas treatment is one of the six major public hazards facing the world today. Food waste will produce malodorous pollutants harmful to human health in the process of natural corruption and resource utilization, mainly including ammonia, hydrogen sulfide and various volatile organic compounds. The prescribed limiting factors not only affect environmental health, but also affect the health of the staff engaged in garbage collection and disposal and the nearby residents. Therefore, the research on odor pollution in the process of food waste recycling has gradually attracted attention. Scholars found that food waste hydrolysis and Food waste treatment The odor concentration in the aerobic composting unit of the equipment is high, and the main odor gases are methyl mercaptan and ammonia.

In terms of odor control, the deodorization technologies commonly used by food waste treatment equipment companies include physical, chemical and biological methods. The main method of chemical deodorization is to use strong oxidants to remove odor. Adding lime and phosphate to the food waste composting system reduces the emissions of ammonia and volatile small molecular organic acids from the food waste composting system, effectively improves the environment of the food waste composting plant, and improves the composting products. Quality. Biological method is characterized by low cost and environmental friendliness. Biological methods are widely used for odor control because of their low cost and environmental friendliness. Common biological deodorization technologies include biological filtration, biological washing, biological trickling filtration, biological aeration and natural plant liquid deodorization.