Dossiers
Reed cutting in constructed wetland plants
Reed cutting in the treatment plants of Negrepelisse (4000PE) and of Saint Etienne-de-Tulmont (1900 PE).
The reed cutting in constructed wetland plants consists in cutting the faded reeds at 30/40 cm from the ground and in taking them out of the filters. This avoids the accumulation of reeds and also reduces the mud’s thickness on the filters’ surface.
Dossiers
The Nègrepelisse WTP-The facts
The wastewater plant treats Nègrepelisse town’s wastewaters before discharging into the Montrosies, an Aveyron’s affluent. The plant’s presentation with some figures.
The Nègrepelisse WTP - The performances
The Nègrepelisse WTP respects the outlet quality imposed on the BOD, COD and SS parameters. With the ponds in the treatment steps, the TKN and Pt contents are under the usual stocks.
St-Etienne-de-Tulmont’s wastewater treatment plant
The St-Etienne’s WTP treats the town’s wastewaters before discharging into the Tauge, an Aveyron’s affluent.
The plant’s presentation with some figures
The MV82 plant (STP)-The facts
The septage treatment plant MV82 will treat, when it will open at the beginning of 2012, the septage sludges produced by the on-site sanitation in the north-east of the Tarn-et Garonne. The plant’s presentation with some figures.
The MV82 plant (STP) - The performances
The septage treatment plant MV82 exports sludges comparable to an agricultural enrichment compost and treated waters whose quality is comparable to those of Nègrepelisse’s WTP, corresponding to the same dumping norm.
The MV82 plant (STP)- The plantation
The septage treatment plant MV82’s filtrates are absorbed during the summer (6 to 8 months per year) by a poplars and eucalyptuses plantation whose wood production feeds Nègrepelisse’s communal heating system. An innovative operation on the treatment and energy project.
Latrine septage sludges
CCTVA supports, in connection with the Water Agency Adour-Garonne, the creation of a system for the collection and treatment of latrine septage in Antananarivo, Madagascar in an aim of humanitarian assistance and technological transfer.
CCTVA
The Communauté de Communes des Terrasses et Vallée de l’Aveyron constructed and runs the plant.
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