- Production of Fuel In the 1970s, the bagasse of sugar mills in my country was mainly used to burn or discard sugar mills themselves. The economic value of this method of utilization was very low. The cellulose in bagasse can be converted into sugar to make alcohol or feed yeast. Brazil’s technology for ethanol production from bagasse developed in the 1980s ranks among the world’s leaders and has registered patents in many countries. The use of new technology can extract 100 liters of alcohol from each ton of bagasse, making the alcohol output of sugarcane increased by 7740. Liter increased to 13,800 liters, without the need to expand the planting area of sugarcane, the output of alcohol can be doubled (14.8 billion liters in 2003/2004), and the cost can be reduced by 40%.
- Bagasse as feed
Over the years, many scholars at home and abroad have devoted themselves to the development and research of by-products from sugar mills as feed, and have achieved certain results. For example, an American Institute of Animal Husbandry invented a method of processing bagasse into high-protein feed after ammoniating. The specific method is: mix bagasse with urea or amide (100:2 aqueous solution), soak the bagasse completely, steam it in a heating pot under 14kg pressure for 2 hours, and mix when the temperature is cooled to about 25°C after being out of the pot. It is fermented with yeast, the gas produced is discharged clean after fermentation, and the bagasse is dried and ground into a fine powder before it can be used as feed.
- Bagasse is used as an environmental protection material:
- Papermaking: At present, there are mature technologies that use bagasse as a substitute for wood to produce paper cup base paper, fully degradable paper agricultural mulch, and paper catering utensils. Among them, the fully degradable paper agricultural mulch is made of 100% bagasse pulp, which can be recycled for papermaking and can be naturally degraded. It can solve the white pollution problem caused by the use of polystyrene tableware for many years. It is considered to be the most promising New achievement; catering made of bagasse has high whiteness and compactness, good temperature and oil resistance, non-toxic and tasteless, and can be completely degraded within three months. There is no three-waste pollution in the production process, and the production cost is greatly reduced. For pulp molded fast food boxes, such as the Shuangfei Green Tableware Factory in Mashan County, Guangxi, this kind of green tableware using bagasse as raw material has already appeared, creating excellent conditions for the development of the emerging environmental protection industry.
- The chemical composition of high-density composite material bagasse is similar to wood, and it is a good raw material for board making. Use bagasse resources to produce high-density composite materials. Due to the small specific gravity of bagasse and good fiber quality, the prepared boards have high strength and lightweight, and the boards and profiles produced are not subject to biological damage, low water absorption, and not corroded by seawater; good fire resistance and good resistance Combustion performance, good mechanical processing performance and decorative performance, suitable for furniture, construction, carriages, ships, packaging boxes, and other manufacturing industries. The product has strong plasticity. It can directly produce a variety of plates and profiles by replacing different molds or templates, which has a great market value. The realization of high-density composite material technology not only solves the pollution discharge problem of agricultural waste and urban waste but also saves limited forestry resources, which will definitely have a huge impact on my country’s environmental protection industry in the 21st century.
