@article{oai:kumadai.repo.nii.ac.jp:00023870,
 author = {藤井, 隆夫 and 古川, 憲治 and Tran Thi Hien Hoa and Khanh, Luong Ngoc and Liu, Zhijun and Fujii, Takao and Rouse, Joseph D. and 古川, 憲治, and Furukawa, Kenji},
 issue = {3},
 journal = {日本水処理生物学会誌},
 month = {Sep},
 note = {application/pdf, 論文(Article), The use of a biomass carrier is preferred for the cultivation of slowly growing anammox
sludge. In this study, PVA gel was selected as a biomass carrier for anammox sludge aud
applied in a fluidized-bed reactor (FBR). A recycle pump was used to induce a flow rate
of 6 - 7 l/min to maintain fluidized bed conditions. Both influent NH4-N and NO2-N
concentrations were increased stepwise to 300 mg N/l. With hydraulic retention times
(HRTs) from 16 h to 9 h in phase 1, NH4-N and NO2-N removal efficiencies were about
81% and 92%, respectively. With HRTs from 9 h to 4 h in phase 2, NH4-N removal
efficiency was 77% and NO2-N removal efficiency was 89%. The removal rates of
ammonium and total nitrogen in phase 1 increased up to 0.71 and 1.35 kg N/m3/d,
respectively. Maximum removal rates of ammonium and total nitrogen in phase 2 increased
quickly up to 1.5 and 3.0 kg N/m3/d, respectively. Ratios of T-N removal, NO2-N removal,
and NO3-N production to NH4-N removal during phase 1 were 1.91:1.12:0.22. These ratios
during phase 2 were 1.96:1.18:0.21. The color of the PVA-gel beads changed from white to
brownish red, which is consistant with anammox bacteria. By the Denaturing Gradient Gel
Electrophoresis (DGGE) method, both KSU-1 and KU-2 anammox strains were detected
with KSU-1 in dominance in the FBR process.},
 pages = {139--149},
 title = {Nitrogen Removal by Immobilized Anammox Sludge using PVA Gel as Biocarrier},
 volume = {42},
 year = {2006},
 yomi = {フルカワ, ケンジ}
}