Using passive atmospheric oxygenation to increase nitrification potential in a non-planted vertical flow constructed bed system

• Autorzy: Xiaoli D. , Zuxin X. , Junqi L. , Kunming F.
• Języki publikacji: EN

Abstrakty

EN

Nitrification potentials in micro-environment were examined in a non-planted vertical flow constructed bed system with an air pipe. The results showed that nitrification potential was significantly correlated with the dissolved oxygen inside the system. Enhanced nitrification of 10.15 g/m²·d was achieved, twice as much as the 4.71 g/m²·d obtained in the traditional one. Atmospheric oxygenation by the air pipe was a remarkable 23.7 g/m²·d, which improved the aerobic micro-environment for extra nitrification. Passive atmospheric oxygenation, which was increased by the air pipe without energy consumption, stimulated the growth of nitrifying bacteria and provided favorable habitats of bacterial richness. This results in high nitrification potential in the constructed bed, which is good for high-concentration rural wastewater treatment.

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2013
• Tom: 22
• Numer: 6
• Opis fizyczny: p.1685-1690,fig.,ref.

Twórcy

autor

Xiaoli D.

• Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, School of Environmental and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China

autor

Zuxin X.

• School of Environmental Science and Engineering, Tongji University, Shanghai, 200092, China

autor

Junqi L.

• Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, School of Environmental and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China

autor

Kunming F.

• Key Laboratory of Urban Stormwater System and Water Environment, Ministry of Education, School of Environmental and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China

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