Water - Slow Sand Filters
Water · Purification & Treatment
US Government works, public domain. Report a problem
Slow Sand Filters If you surface water sources for household use, slow sand filtration - or more accurately biologically active filtration - may be an effective choice for water treatment. Slow sand filters can remove up to 99.99 percent of turbidity, bacteria, viruses, and Giardia lamblia cysts without the need for chemical flocculents or the use of electrical power. Slow sand filtration is a preferred technology for customers who: ► Wish to use surface water (ponds, streams, springs) ► Use dai
Download PDF Back to PDF Library