The results show that maze sedimentation is suiable to treat and reuse of cast wastwater with advantages of high effectiveness and economic benefit by adding acid or inorganic Fe and AI salt combined with polymers.

• 试验表明 ；投加酸或铁盐、铝盐或者与有机高分子絮凝剂配合使用的迷宫沉淀方法 ；是一种经济高效、适合于铸造废水回用处理的工艺 .