One stage of reed beds fed with raw sewage assures primary and secondary treatment for 1200 People Equivalent, followed by a trickling filter for polishing and nitrification. A tertiary UV treatment enables a pathogens removal by 4 U log.
Client: Sorø Municipality
Location: Tuelsø, Denmark
Established: 2003
Number of basins: 10
Sludge type: Activated sludge
Sludge volume: 550 tonnes DS/year
PE, amount: 22,000
Location: Hanningfield, UK
Established: 2012
Project period: 2010-2012
Number of basins: 16
Sludge type: Water works sludge
Sludge production: 1,275 tonnes DS/year
PE, amount: 1.5 - 2.0 million
Construction costs: approxiamtely 6 million £
Saint Bonnet le Froid : a 900 m², vertical flow reed bed (French system) plus a 600 m² second stage unsaturated vertical flow red bed for the treatment of domestic effluent from a village with variable population.
A vertical flow reed bed (French system) and a vegetated polishing zone (surface flow wetland) treating 117m3/d of domestic effluent from a village with variable population
Allenwiller : a 1700 m², vertical flow reed bed (French system) plus a 960 m² second stage unsaturated vertical flow reed bed filter, treating 495 m3/d of domestic effluent from three villages (1100 PE) in Alsace.
2-stage vertical flow reed bed filter treating raw domestic sewage (French system) with a capacity of 650 P.E. Treated effluent goes through a filtering ditch and is rejected into the river Bourdic.
Recirculated vertical flow French system for 800 p.e. with polishing in a "natural" horizontal flow wetland
Mayfield: A 2.1 hectare, 12 bed aerated horizontal system treating airport run off contaminated with glycol based antifreeze.
Septage treatment plant of Nègrepelisse with reed bed filters and reuse of the treated leachates to irrigate a Short Rotation Coppice. Capacity : 3500 septic tanks or 11000 m3/year equivalent to 131 T of SS/year. Designed and built by Epur Natur.
