Huanjing kexue, 2011-07, Vol.32 (7), p.2006
2011
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Details
- Autor(en) / Beteiligte
- Titel
- Optimization of a modified UCT step feed process treating municipal wastewater
- Ist Teil von
- Huanjing kexue, 2011-07, Vol.32 (7), p.2006
- Ort / Verlag
- China
- Erscheinungsjahr
- 2011
- Quelle
- MEDLINE
- Beschreibungen/Notizen
- A pilot-scale modified UCT step feed process was proposed to treat the municipal wastewater with lower COD/N in a large-scale wastewater treatment plant. Effects of influent distribution ratios and nutrients ratios (COD/N, COD/P and TN/P) on nutrients removal capabilities were importantly investigated. The removal mechanisms of organics and nutrients and sludge characteristics were ultimately discussed. According to the continuous experiments, the stable and high process performance was obtained. The average COD removal efficiencies and effluent concentration of (83.8 +/- 3.86)% and (43.7 +/- 8.35) mg/L were achieved in the influent COD loading of 0.79-0.93 kg/(m3 x d). The COD removal in anaerobic and anoxic zones accounted for 60.2% - 76.2%. With the influent distribution ratio of 40%: 30%: 30%, as much as 88.2% of TN removal efficiency was observed. It should be considered the removal of 32.8% through simultaneous nitrification and denitrification process. The average effluent NH(4+)-N and TN were (0.21 +/
- Sprache
- Chinesisch
- Identifikatoren
- ISSN: 0250-3301Titel-ID: cdi_pubmed_primary_21922822
- Format
- –
- Schlagworte
- Biodegradation, Environmental, Biological Oxygen Demand Analysis, Bioreactors - microbiology, Cities, Nitrogen - isolation & purification, Nitrogen - metabolism, Phosphorus - isolation & purification, Phosphorus - metabolism, Pilot Projects, Waste Disposal, Fluid - methods, Water Pollutants, Chemical - isolation & purification, Water Pollutants, Chemical - metabolism