Ceramsite was used in treatment of oily wastewater from machine process,at the same time;a continuous contrast experiment was made with quartz,polystyrene ball,rare earths porcelain grit as filters.

• 利用陶粒处理机械加工含油废水,同时选用石英砂、聚苯乙烯球、稀土瓷砂等滤料进行连续运行对比试验。