Swill can be used as fertilizer.

Although swill belongs to the category of domestic waste, it has the characteristics of high oil content, high salt content and complex composition. If 85 million tons of kitchen waste is converted into energy value, a surprising number will be obtained: about 35% of the dry matter of kitchen waste contains about 12% of crude fat and more than 21% of protein.

The contained energy is equivalent to the energy output of 17 million mu of corn; It is equivalent to saving about 34 million mu of cultivated land and 3.4 million tons of biodiesel.

Extended information:

"As long as kitchen waste is handled properly, it is not impossible to turn waste into treasure, and its economic benefits are also very considerable." A few years ago, Dong Fei and his colleagues saw the huge market hidden behind the kitchen waste, which prompted him to set up a science and technology enterprise to explore ways to turn swill into treasure. "Science and technology should exert its strength at the bottleneck that restricts economic and social development. Solving this bottleneck is a responsibility to the country and society, but it is a support point for enterprises to grow."

The appearance of "integrated kitchen waste treatment equipment" broke the traditional thinking pattern, and turned the kitchen waste that people used to be difficult to treat in daily life into treasure through the principles of garbage classification, screw extrusion, oil-water separation and microbial degradation, thus eliminating the generation of waste oil and garbage pigs and the environmental pollution caused by them from the source.

according to Li xiongcheng, deputy director of the environmental sanitation department of Yulin city, Guangxi province, who participated in the equipment trial, "the biggest advantage of on-site treatment of kitchen waste is reduction and no pollution. The kitchen waste has a lot of water and various smells are strong (smelly), but the organic fertilizer processed by this machine is organic fertilizer with fragrance, which is more environmentally friendly. "

people's network-"swill" turned into fertilizer.