| 摘要 |
Fly ash is used, with or without one or more additives, as a gas entrapping material or composition, as a liquid absorbing material or composition, as fire extinguishing material or composition, as a litter composition or material for domestic animals or pets or as a farm animal feedstuff additive. The properties of the fly ash may be enhanced for a particular intended use, by the introduction of additives, e.g. an acid salt. The entrapped gas may be ammonia produced in a farm e.g. maggot farm, or radon. Compositions comprising fly ash, sawdust and ferrous sulphate in specified amounts are claimed. |
