2. Constructed Wetlands Technology
and Construction
2-stage CWs
as compared to 1-stage CWs: Advantages
Approximately 50% of land requirement, as compared to 1stage CWs.
Better treatment efficiency, particularly better nutrient and pathogen removal.
20 years of practical experience.
No
pre-treatment required, apart from screening
(French system).
No need for separate sludge treatment
( French system).