Compared with the traditional physical and chemical methods, biological metallurgy method not only harm the environment, but also conducive to protect environment, reduce the pollution of the environment related to produce hazardous substances chemical pollution of the environment and the physical effect of smelting process, the pollution generated Yan Zhongying ring to environment, so as to put forward the concept of biological metallurgy, biological metallurgy is refers in the associated microorganisms exist, due to the catalytic action of microorganisms, the minerals valuable metal ions to form, dissolved into leaching solution recycled, or methods of mineral elements in dissolved and removed,Many microorganisms can be through a variety of ways of minerals in the valuable elements into ions in solution. In the rapid economic development, people's living standard continues to improve, the quality of life is also changing, demand for the metal precious nonferrous amount increasing, metal mineral resources in the increasingly reduced, development slightly cheaper metal but difficult to deal with the resource is increased, so the concept of biological metallurgy have also been proposed out. Biological characteristics of silicate bacteria as well as in recent years the use of silicate bacteria for biological desilication of bauxite and the application research status, mechanism of silicate bacteria desilication is discussed.
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