title: [Start-up experiment on nitrification of mid-low ammonia concentration wastewater in SBR biofilm reactor].
abstract: The start-up experiment on nitrification of mid-low NH4+ -N concentration wastewater was carried out in four SBR biofilm reactors for the establishment of completely autotrophic nitrogen removal process by the control of DO and HRT and different medias. The results show that on the conditions of temperature 30 degrees C +/-2 degrees C, ammonia concentration 60-120 mg/L, DO 0.8 - 1.0 mg/L and hydraulic retention time 24 h, the inoculating general active aerobic sludge and anaerobic sludge was nitrified stably after 130 days, and the YJZH media was more suitable for microorganism coherence.
authors.affiliation: Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China. Guoyuhao@cta.cq.cn
authors.forename: Jin-song
authors.initials: JS
authors.lastname: Guo
authors.forename: Fang
authors.initials: F
authors.lastname: Fang
authors.forename: Ben-fu
authors.initials: BF
authors.lastname: Luo
authors.forename: Yu
authors.initials: Y
authors.lastname: Qin
authors.forename: Guo-hong
authors.initials: GH
authors.lastname: Yang
mesh_terms: D000641:Ammonia / Q000032:analysis*; D001420:Bacteria, Aerobic / Q000378:metabolism; D001421:Bacteria, Anaerobic / Q000378:metabolism; D018441:Biofilms; D019149:Bioreactors / Q000382:microbiology*; D009573:Nitrites / Q000032:analysis; D009576:Nitrobacter / Q000378:metabolism*; D009584:Nitrogen / Q000032:analysis*; D014865:Waste Disposal, Fluid / Q000379:methods*
chemical_list: D009573:Nitrites; D000641:Ammonia; D009584:Nitrogen