The kitchen waste (crushing) processor drives the cutterhead through a small DC or AC motor, uses centrifugal force to crush the food waste in the crushing chamber and then discharges it into the sewer. The crushing chamber has a filtering effect and automatically intercepts food solid particles; the cutter head is equipped with two or four impact heads that can rotate 360 ??degrees. It has no sharp edges and is safe, durable and maintenance-free. The cutter head speed (full load, working state) is about 2600-5500 rpm for DC motor and about 1450-1750 rpm for AC motor. The diameter of the crushed particles is less than 4 mm and will not block drainage pipes and sewers. The advantages of using a kitchen garbage (crushing) processor are as follows: 1. For residents: ① Reduce the odor in the kitchen, especially in the cabinets where trash cans are stored; ② Reduce the possibility of breeding cockroaches and bacteria; ③ Make cleaning and discharging household garbage a task An easy and clean job; ④ Helps maintain the sanitary environment of stairwells and residential areas. 2. For the sanitation department and property management: ① Improve the sanitation working environment; ② Effectively reduce garbage production; ③ Reduce secondary pollution during garbage collection and transportation; ④ Reduce the difficulty and cost of garbage collection, transportation and processing (this is particularly important) . 3. For municipal and traffic control departments: ① Increase the content of perishable organic matter in sewage, which is beneficial to the biochemical process of sewage treatment plants; ② Reduce the number of garbage trucks and the pollution of road surfaces caused by garbage and sewage dripping. 4. For the environment and resource recycling: ① Reduce the pollution of recyclables by food waste and increase the resource recovery rate; ② Improve the treatment conditions of landfills and incineration plants and reduce pollution such as leachate, biogas, and flue gas. emissions. The disadvantages of using the treatment machine are: residents will increase their water and electricity expenses; the cleaning of the sewage pipe network may increase after widespread use; the treatment process of the sewage treatment plant needs to be gradually adjusted. Under the organization of the China Environmental Sanitation Association, responsible persons in charge of urban environmental sanitation management and treatment from Beijing, Ningxia and other places gathered in Ningbo to discuss the problems of urban food waste disposal. Ningbo Kaicheng Ecological Technology Co., Ltd., as a representative of the physical and biological treatment technology model of food waste, gave a typical introduction.
The meeting revealed that there are nearly 3.5 million hotels and restaurants in our country, and the amount of food waste generated every day is staggering. However, there are currently few engineering examples of large-scale application of food waste treatment in my country. They are mainly concentrated in Beijing, Shanghai, Ningbo, Xining and other cities. The main technologies adopted are anaerobic digestion treatment process and microbial resources. There are four types of recycling treatment technology, feed treatment technology and physical and biological treatment technology. Among them, physical and biological treatment technology is represented by "open and honest" harmless disposal and resource utilization of kitchen waste. "Kaicheng" complete set kitchen waste treatment equipment with independent intellectual property rights has changed the traditional kitchen waste treatment equipment through solid-liquid separation, mechanical sorting, magnetic separation, crushing, protein flocculation, three-phase separation, biological fermentation and other process links. The concept of garbage realizes the development goal of circular economy. As the only food waste treatment enterprise designated by the municipal government, it has created significant social benefits, economic benefits and environmental protection value.
After comprehensive analysis and research, Professor Wang Lili of the China Urban Architecture Research Institute believes that the "Kaicheng" food waste treatment technology has achieved the requirements of "harmlessness, reduction and resource utilization". The technology is mature and the resources are It has a high degree of comprehensive utilization, meets standard emissions, has long-term operating experience, and has moderate project investment, making it suitable for centralized and large-scale treatment of food waste.