BIOLOGICALLY ACTIVATED PURIFICATION PROCESS FOR WASTE WATER CONTAINING NITROGEN MATERIALS AND DEVICE FOR CARRYING OUT THIS PROCESS

摘要

Method of biological activating cleaning of waste waters containing nitrogenous materials at conditions of a lowly loaded sludge with simultaneous nitrification of organic nitrogen and ammonia to nitrates while using fluid filtration and an arrangement for execution of this method where the waste water, after its activating cleaning with supply of oxygen, is subsequently cleaned in the course of fluid filtration by denitrification without presence of oxygen creating flotating sludge which is circulated at least partly to the aerobic activating cleaning.