Beijing explore new ways to dispose of bio wastes

Straw can be recycled into new energy

Aside from turning fallen leaves into animal feed, Beijing Shengchang Bioenergy S&T Company, located in Lixian Township, Daxing District, has been collecting straw, sticks, sawdust and other "garbage." The company uses equipment to process the rural waste, compressing and turning these materials into solid particles or patch fuels. These types of bio-fuel can not only be used for cooking and heating in rural households, but also can be used for fuel in boilers.

"The straw around our plant was usually burned with heavy, black smoke in the past, which was hard to prevent. Now, in order to make money, the farmers nearby all send us straw," said manager Cao of the company. The waste, such as the straw and sticks that are so common in rural areas will be processed into pollution-free clean energy. The heat produced by a unit volume of biomass fuel is 15 times that produced by directly burning straw, and this new type of fuel is priced between 500 yuan and about 1000 yuan.

Vegetable and fruit waste can be turned into fertilizer through fermentation

Nearly 100 tons of fruits and vegetables from the Beijing Xinfadi Agricultural Wholesale Market were previously transferred to sanitation stations for treatment as garbage. However, the environmentally-friendly garbage treatment plant established by the market applies smashing, compressing, thermophilic fermentation and biochemical processes to turn them into fertilizers. Reporters learned that this "waste" could now not only create indirect benefits of 4.3 million yuan per year when it is used in the flower industry, but also annually saves the cost of transporting and treating vegetable and fruit waste by about nine million yuan.

Translated by LOTO