首页>
外国专利>
Prodn. of floatable materials for absorption beds - by carbonising pre-expanded grain, esp. useful in anaerobic waste water treatment plants
Prodn. of floatable materials for absorption beds - by carbonising pre-expanded grain, esp. useful in anaerobic waste water treatment plants
展开▼
机译:产品用于吸收床的浮选材料-通过碳化预膨化谷物,特别是用于厌氧废水处理厂
展开▼
页面导航
摘要
著录项
相似文献
摘要
Prodn. is effected by carbonising pre-expanded natural 'fruits' (esp. grains) at 180-450 deg.C. The starting material is popcorn, puffed wheat or puffed rice. Carbonisation is effected in the presence of air, opt. in a closed vessel to form a moulded prod. USE - The floatable materials are esp. useful as biomass carriers in biological (esp. anaerobic) waste-water treatment plants. They may also be used as packing materials in columns, trickle units and adsorption or absorption beds, as biofilter materials, as hydroponic culture substrates, as insulating materials, as fillers for plastics, foams, bricks and concrete, and as carriers for catalysts and 'active agents'
展开▼