MECHANOCHEMICAL PRODUCTION OF LIGNIN-CONTAINING POWDER FUELS FROM BIOTECHNOLOGY INDUSTRY WASTE A review by

In biotechnological processing of plant raw materials, carbohydrates that are solu-ble and accessible for microorganisms are the only usable components. The lignin-rich part of the plant raw materials usually ends up in the waste. Lignin transferred into water suspensions cannot be used efficiently as a fuel. In this re-view, a new processing scheme of plant raw materials is presented, which includes mechanochemical treatment of the plant raw materials and separation of the pow-der product into particles of lignified and non-lignified tissues rich in lignin and cellulose, respectively. The cellulose-rich powders can then be used in biotechno-logical processes. Lignin-rich powder aerodynamically separated using cy-clone-type apparatus can be used as a powder fuel to satisfy the needs of the main biotechnological plant in heat and steam