[The 'epuvalisation', a purification technique of waste waters with a high organic matter content]

azote carga contaminante charge polluante cultivo de hortalizas culture sur film nutritif experimentation heavy metals hortalizas (plantas) lisier lutte antipollution metales pesados nitrogen nutrient film technique organic matter pollutant load pollution control purification de l'eau radiactividad radioactivity slurry tratamiento de aguas residuales vegetable crops vegetable growing wastewater treatment water purification