Nitrogen and phosphorus are used for aerobic-chemical cleansing of sewage in gas-tight insulated tank without pre-filtration, employing fiber surfaces of nitrification bacteria

摘要

Nitrogen and phosphorus are used for aerobic/chemical cleansing of sewage in a gas-tight insulated tank without pre-filtration, employing fiber surfaces of nitrification bacteria. A part of the ammonia is transferred to ammonium carbonate with the use of carbon dioxide gas from the aerobic decomposition. Released phosphorus is separated in a lime slurry fraction, which is fed to a dry fiber fraction, using the exothermal heat from the aerobic process.