Trickling filter
A trickling filter consists of a fixed bed of rocks, gravel, slag, polyurethane foam, sphagnum peat moss, ceramic, or plastic media over which sewage or other wastewater flows downward and causes a layer or film of microbial slime to grow, covering the bed of media.
Welcome! Here're my Secret Gifts
for you. Feel free to explore, bookmark, share with your friends and also check out the sponsors. I'm sure you'd find this site helpful. Enjoy!
Share this!