Details

Autor(en) / Beteiligte

• Sun, Hong-Wei
• Guo, Ying
• Peng, Yong-Zhen

Titel

Study on long-term stability of biological nitrogen removal via nitrite from real landfill leachate

Ist Teil von

• Huanjing kexue, 2014-01, Vol.35 (1), p.221

Ort / Verlag

China

Erscheinungsjahr

2014

Link zum Volltext

Quelle

MEDLINE

Beschreibungen/Notizen

• The long-term stability of nitrogen removal from municipal landfill with high ammonia nitrogen (NH(4+)-N) content was investigated by using a biological system consisting of a first-stage up-flow anaerobic sludge bed (UASB) and sequencing batch reactor (SBR) under normal and low temperature conditions. The 623 days experimental results clearly showed: the efficient denitrification and methanogenesis were conducted in a same UASB reactor, and almost 100% of denitrification was obtained, when feed COD concentration ranged from 1,000 mg x L(-1) to 13 800 mg x L(-1), effluent COD concentration was between 150 mg x L(-1) and 1,234 mg x L(-1), and when the influent ammonia nitrogen (NH(4+)-N) changed from 574 mg x L(-1) to 2,360 mg-L(-1), the effluent NH:-N was below 10 mg x L(-1), the removal efficiency reached 90% and 98%, respectively. Especially, above 99.2% removal efficiency of TN was obtained, and effluent TN concentration was below 30 mg L(-1)), advanced and efficient nitrogen and organic removal were achie