膜分離式バイオリアクターによる無機アンモニウムの酸化

概要

論文の詳細を見る
Oxidation of inorganic ammonium (NH_4^+) was done by an activated sludge process with cross-flow filtration. The reactor was operated by a complete mixing and continuous feeding method. Activated sludge was seldom drawn off to retain slow growing nitrifiers in the reactor well. Although no organic substances were supplied to the reactor, the sludge concentration increased up to 6,600-8,700 mgVSS/l. No ammonim nitrogen was detected in the effluent, with the reactor was operated with ammonium loading up to 0.79-1.18 g NH_4-N・l^<-1>・d^<-1>. The ammonium oxidation rate reached 1.90 NH_4-N・l^<-1>・d^<-1>; this value is six-fold higher than the maximum nitrification rate when Kjeldahl nitrogen and organic substance were treated by this activated sludge process at the same time.
社団法人日本生物工学会の論文
1990-01-25