The fate of phosphate under anoxic conditions in biological nutrient removal activated sludge systems
Yükleniyor...
Dosyalar
Tarih
1998
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Kluwer Academic Publ
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The nitrogen removal potential of phosphate accumulating organisms under anoxic conditions has been evaluated using a laboratory scale sequencing batch reactor fed with synthetic wastewater and operated in a sequence of anaerobic, anoxic and aerobic periods. The phosphate uptake rate under anoxic conditions was lower than that under aerobic conditions. However, in the presence of an external substrate such as glucose and acetate, the fate of phosphate was dependent on the substrate type; phosphate release occurred in the presence of nitrate as long as acetate was present and glucose did not cause any phosphate release. The nitrate uptake rate was also much lower with glucose than acetate. The results implied that poly-hydroxyalkanoates could be oxidized by nitrate and phosphate uptake during the anoxic phase should be introduced into process modeling.
Açıklama
Anahtar Kelimeler
anoxic conditions, biological phosphate removal, denitrifying phosphate removing bacteria, sequencing batch reactor, Sequencing Batch Reactor, Phosphorus Removal
Kaynak
Biotechnology Letters
WoS Q Değeri
Q3
Scopus Q Değeri
Cilt
20
Sayı
11