Effluents from the treatment plant of Saint Jean de Monts and Saint Hilaire de Riez have been injected into a confined ground water for twelve years. This ground water is connected with the sea. Effluent floats on the surface of the aquifer and it disperses by dilution at the freshwater/salt water interface. The aquifer acts as a direct overflow pipe. The injection of effluent has preserved the quality of waters in the coastal area and in the Breton Marsh.
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Research Article| June 01 1992
Effect of Wastewater Injection on Ground Water Quality
Water Sci Technol (1992) 25 (12): 283–286.
M. Legeas, J. Carré, Ph. Mérot; Effect of Wastewater Injection on Ground Water Quality. Water Sci Technol 1 June 1992; 25 (12): 283–286. doi: https://doi.org/10.2166/wst.1992.0360
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