Cel TO DEVELOP A PROCESS OF HETEROTROPIC DENITRIFICATION ON MAN-MADE SOIL OF GROUND WATER USED FOR ALIMENTATION. AFTER THE LABORATORY PHASE ABOUT THE DENITRIFICATION OF WATERS, THE RESEARCH PROJECT AIMS TO TEST OBTAINED RESULTS IN THE FIELD, BY PERCOLATION OF THE WATER THROUGH COLUMNS COMPOSED OF SAND, MAERL (CARBONATED SAND) AND STRAW. THE PART OF WATER WHICH IS PURIFIED AND ENRICHED OF DENITRIFYING BACTERIA GOES TO THE UNDERGROUND WATER WHERE IT CAN INDUCE ALSO A PARTIAL DENITRIFICATION OF THE AQUIFER'S WATER. THE FOLLOWING WORKS ARE EXECUTED: - INSTALLATION, ON THE EXPERIMENTAL SITE, OF SEVERAL SYSTEMS OF WATER IMPREGNATION THROUGH THE UNSATURATED ZONE; - FOLLOW-UP OF THE DENITRIFICATION UNIT: INFLUENCE OF THE LOAD OF NITRATES, OF THE PERCOLATION'S VELOCITY AND STUDY OF THE PERTURBATIONS, TOGETHER WITH THE PROBLEMS BY AN IRREGULAR USE. PARTICULAR EFFORT IS CONSECRATED TO THE STUDY OF WATER QUALITY IN THE DIFFERENT PARTS OF THE DENITRIFICATION UNIT, ESPECIALLY TO THE MEASUREMENT OF THE DIFFERENT NITROGEN SPECIES AND THE ORGANIC COMPOUNDS FORMED. Program(-y) PRE-ENVPROT 3C - Sectoral research and development programme (EEC) in the field of environment (environmental protection and climatology) - indirect and concerted actions - Environmental protection -, 1981-1985 Temat(-y) Data not available Zaproszenie do składania wniosków Data not available System finansowania CSC - Cost-sharing contracts Koordynator Bureau de Recherches Géologiques et Minières (BRGM) Wkład UE Brak danych Adres 39-43 Quai André Citroën 75739 Paris Francja Zobacz na mapie Koszt całkowity Brak danych