抄録
Grinding makes surface area of solid increase with accelerating mechanical activation. This induces mechano-chemical （MC） reaction in the solids at certain level of energy stored in the solid, and its reaction yield improves as the grinding progresses. There have been a lot of investigations on the MC reaction in various materials, but its practical applications have rarely been materialized. The author's group has attempted the highly utilization of grinding operation, aiming its engineering application in terms of recycling, waste treatment and clean technology. Some of them have been introduced in this paper.
