Sludge reduction performance by earthworm biofilters using quartz sand and ceramsite as media was compared. 比较了石英砂和陶粒滤料蚯蚓生物滤池的污泥减量化效果。
However, the injury in ceramsite is slighter than that in quartz sand, which is mostly due to different physical characters. 两种滤料相比，陶粒滤料中蚯蚓体壁组织结构的受损程度较小，这主要是由两种滤料不同的物理性状所引起的。
