Details

Autor(en) / Beteiligte

• NAGADOMI, H
• TAKAHASI, T
• SASAKI, K
• YANG, H. C

Titel

Simultaneous removal of chemical oxygen demand and nitrate in aerobic treatment of sewage wastewater using an immobilized photosynthetic bacterium of porous ceramic plates

Ist Teil von

• World journal of microbiology & biotechnology, 2000-02, Vol.16 (1), p.57-62

Ort / Verlag

Dordrecht: Springer

Erscheinungsjahr

2000

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A denitrifying photosynthetic bacterium (PSB), Rhodobacter sphaeroides S was immobilized on a porous ceramic plate (10×10×0.5cm) using a small amount of agar. In the bioreactor (3.5 l liquid) using this plate, repeated batch treatments of sewage wastewater (acetic acid as a carbon source) were carried out under aerobic conditions (DO 5mg/l) for two weeks. The simultaneous and effective removal of chemical oxygen demand (COD), ammonium, and nitrate was observed. In continuous treatment at a relatively high dilution rate of 0.20 h^sup -1^ (retention time, five hours), the same simultaneous treatments were observed for about one month.[PUBLICATION ABSTRACT]