Integrated Utilization of Tobacco Dust
Tobacco dust, commonly known as tobacco wastes, are the by-products of tobacco processing and the remaining tobacco fragments formed in the process of cigarette packaging. Tobacco dust is abundant in China. It is estimated that the annual output of tobacco dust in our country is around 4.5 million tons. The vast majority of tobacco dust is a hazardous waste and its disposal has caused a great burden on farmers and the environment. Therefore, it is of great significance to carry out the comprehensive utilization of tobacco dust.
In recent decades, tobacco dust has been increasingly used to produce pesticide or feed additives. After processing, tobacco dust can be used to produce various pesticides, such as mosquito repellent and anti-insect insecticides. It can also be processed and converted into feed additive, which can improve animal feed, increase feed utilization and promote animal growth. Tobacco dust, after being processed into weedkiller, can reduce the usage of synthetic chemicals, and has the advantages of simple technology, low cost, environmental protection, and high efficiency, etc.
In addition, tobacco dust can also be used as a feed material for the production of activated carbon and calcium carbonate. As a kind of common chemical raw material, activated carbon is widely used in industrial production, such as water purification, gas adsorption, decolorization, and catalyst and sorbent preparation. Calcium carbonate, as a kind of inorganic powder material, has various excellent properties, including heat resistance, heat insulation, and fire resistance, which makes it an ideal raw material for fireproof materials.
At the same time, tobacco dust can also be used in the production of cellulose. After being processed into high-quality special cellulose and regenerated cellulose, it can be used in pesticide packaging, rubber and plastic production. Besides, after being processed into a certain particle size, the tobacco dust can also be used as highway and railway rubber stabilizing material and oil spill absorbent material.
Moreover, tobacco dust can also be used in building materials. It can be used to produce lightweight bricks and lightweight porous bricks, which can replace clay bricks and reduce the load of buildings, thus improving energy-saving properties of buildings. In addition, it can also be used to produce insulation board materials, which can reduce heat loss and energy consumption in buildings.
In conclusion, tobacco dust is a valuable resource and its comprehensive utilization has huge economic, social and environmental benefits. Meanwhile, we should also pay attention to its safety and environmental protection issues during the comprehensive utilization process.
