Nitrogen removal in sequencing batch reactor

This article introduces biodenittification rule of several operation in SBR system. Theresults show that sequencing aeration in SBR meets the needs of oxic and anoxic conditions ofbio-denitrification, and it is a promising bio-denitrification technique. It is the first discover thatduring the treatment of brewery wastewater, when the brewery wastewater is added in the activatedsludge, its denitrinfication rate is faster than methyl alcohol added. This experimental result has greatsignificance. It is suggested that adding original brewery wastewater shall be first considered inbio-denitrification of several kinds of wastewater. Altenlative operation of aeration and mixation,namely nitnfication and denitnfication, has high denitnfication efficiency.