FOCUS#4a
EcoEng Newsletter 1, April 2002
Photo sheet (photos 2, 3 and 4)
Photo 2: One of two small subsurface-flow constructed wetlands receiving motor camp wastewaters after septic tank treatment at Waipoua Forest Park.
Photo 3: One of three gravel-bed subsurface-flow wetlands treating sewage from Waikeria Prison after the activated sludge treatment.
Photo 4: Surface-flow wetlands providing tertiary treatment after aerated lagoons at Beachlands-Maraetai. The final discharge is UV disinfected and dispersed into restored wetland and pond areas that drain to a nearby stream.
--> back to article
© 2002, International Ecological Engineering Society, Wolhusen, Switzerland