title: Factors affecting the treatment of reject water by the anammox process.
abstract: Reject water from a municipal wastewater treatment plant was treated using a stirred tank anammox reactor after being treated by a partial nitrification reactor. The results indicated the variations in the influent NO(2)(-)-N to NH(4)(+)-N ratio had a negative effect on reactor performance, especially when the T-N concentrations were high. Influent total organic carbon concentrations greater than 50mg/L were proven to have a serious effect on the nitrogen removal efficiencies of the anammox reactor. Observations by scanning electron microscope showed that the surface of the anammox granular sludge was covered by some materials, possibly the effluent SS contained in the partial nitrified reject water. Furthermore, the study of the bacterial composition of the anammox granular sludge showed that the anammox bacterium, Planctomycete KSU-1, was dominant, even during the inhibition phase.
authors: Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan. lzg2004@163.com
authors: Zhigang
authors: Z
authors: Li
authors: Yongguang
authors: Y
authors: Ma
authors: Daisuke
authors: D
authors: Hira
authors: Takao
authors: T
authors: Fujii
authors: Kenji
authors: K
authors: Furukawa
mesh_terms: D001419:Bacteria / Q000145:classification / Q000235:genetics / Q000378:metabolism; D001483:Base Sequence; D019149:Bioreactors; D003001:Cloning, Molecular; D017931:DNA Primers; D008855:Microscopy, Electron, Scanning; D058465:Nitrification; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012722:Sewage; D014873:Water Pollutants / Q000302:isolation & purification*
chemical_list: D017931:DNA Primers; D012336:RNA, Ribosomal, 16S; D012722:Sewage; D014873:Water Pollutants