BIOLOGICAL DENITRIFICATION OF GROUNDWATER

General principles of the process systems carried out at laboratory level and several full-scale plants in europe. Description of heterotrophic processes : methanol, resin, ethanol, nitrazur, nitredox, acetate, activated carbon, sucrose and cellulose. Description of autotrophic processes : hydrogen gaz and reduced sulfur, denitropur, bioelectrochemical. The cost of biological denitrification process are examined.