Inspiration
Constructed Wetlands for Wastewater Treatment
Constructed wetlands can be an effective natural method for wastewater treatment.
Constructed wetlands can offer an affordable solution to wastewater for sites with a warm climate, high water table, high organic matter/suspended solids in wastewater and enough unshaded area. The most effective applications of this method seem to be when employed on many small-scale sites, rather than over a large area. More can be found at:
http://www.toolbase.org/Technology-Inventory/Sitework/constructed-wetlands