With the population and economic conditions, food waste is also growing rapidly. Food waste has the characteristics of high moisture, high salt, high protein and oil and other organic matter content. Therefore, if food waste is not properly treated, it is easy to cause corresponding environmental pollution and problems. Aerobic composting (compost turning machine)is a good option.
The feces are collected first, then dehydrated, and the water content is controlled at 20% to 30%. The dehydrated feces are transported to the special steam sterilization room, and the temperature should not be too high, generally controlled at 80% ℃ ~ 100 ℃. High temperature easily decomposes and loses nutrients. The fertilizer runs continuously in the disinfection room. After 20 times of disinfection, after 20 minutes to 30 minutes of disinfection, all insect eggs, weed seeds and harmful bacteria are killed. A deodorization tower is installed in the disinfection room to deodorize, and the odor is discharged through the tower.
The deodorized and disinfected feces are combined with necessary natural minerals (phosphate rock powder, dolomite, mica powder, etc.), granulated and dried to make organic fertilizer. Feces concentration-dehydration-disinfection-deodorization-formula stirring-granulation-drying-screening-packaging-storage. The harmless treatment of organic fertilizer equipment can degrade organic pollutants and biological pollution.
If organic fertilizer is produced, an organic fertilizer production line needs to be built. An organic fertilizer production line includes equipment such as fermentation turner, pulverizer, feeder, horizontal mixer, organic fertilizer granulator machine, dryer, cooler, sieve extension, weighing packaging machine. This organic fertilizer production line can be used to produce granular organic fertilizer and powdered organic fertilizer. For example, the annual output is 10 million tons of organic fertilizer, and the equipment investment of an organic fertilizer production line is about 300,000-450,000. The annual output of organic fertilizer is 80,000-100,000 tons, and the investment in organic fertilizer production line equipment is about 150,000-200,000.
