PMID- 31982794
OWN - NLM
STAT- MEDLINE
DCOM- 20200224
LR  - 20200224
IS  - 1879-2448 (Electronic)
IS  - 0043-1354 (Linking)
VI  - 172
DP  - 2020 Apr 1
TI  - Simultaneous nitrogen removal and phosphorus recovery using an anammox expanded 
      reactor operated at 25  degrees C.
PG  - 115510
LID - S0043-1354(20)30046-4 [pii]
LID - 10.1016/j.watres.2020.115510 [doi]
AB  - While anammox is a cost-effective nitrogen treatment process for wastewater with 
      high nutrient strength, phosphorus remains untouched during this process and 
      needs further treatment. In this study, the nitrogen removal and phosphorus 
      recovery were achieved simultaneously at 25  degrees C using an anammox expanded bed. A 
      stable high nitrogen removal efficiency of 83.7 +/- 4.8% at a 1500 mgN/L influent 
      total nitrogen concentration and a phosphorus removal efficiency of 94.2 +/- 1.2% 
      at 100 mg P/L influent total phosphorus were obtained during continuous 
      operation. The effects of the nitrogen loading rate, hydraulic retention time 
      (HRT), pH, Ca(2+) and PO(4)(3-) concentration on the phosphorus removal was 
      verified in the long-term operation of the reactor. The sludge produced contained 
      a high content of phosphorus mainly in the form of hydroxyapatite (HAP), and the 
      sludge composition strongly reflected the nitrogen and phosphorus loading. The 
      structure of the anammox-HAP composite granules was illustrated by the use of 
      fluorescence in situ hybridization (FISH) and Raman spectroscopic mapping 
      analysis. The results in this study indicate that by controlling the operation 
      parameters, it is possible to integrate a high efficiency phosphorus recovery 
      with the anammox process, and significantly reduce the nutrient loading for 
      further wastewater treatment.
CI  - Copyright (c) 2020 Elsevier Ltd. All rights reserved.
FAU - Ma, Haiyuan
AU  - Ma H
AD  - Department of Civil and Environmental Engineering, Graduate School of 
      Engineering, Tohoku University, 6-6-06 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 
      980-8579, Japan; Center for Material Cycles and Waste Management Research, 
      National Institute for Environmental Studies, Tsukuba, 305-8506, Japan.
FAU - Xue, Yi
AU  - Xue Y
AD  - Graduate School of Environmental Studies, Tohoku University, 6-6-06 Aramaki Aza 
      Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan.
FAU - Zhang, Yuanfan
AU  - Zhang Y
AD  - Department of Civil and Environmental Engineering, Graduate School of 
      Engineering, Tohoku University, 6-6-06 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 
      980-8579, Japan.
FAU - Kobayashi, Takuro
AU  - Kobayashi T
AD  - Center for Material Cycles and Waste Management Research, National Institute for 
      Environmental Studies, Tsukuba, 305-8506, Japan.
FAU - Kubota, Kengo
AU  - Kubota K
AD  - Department of Civil and Environmental Engineering, Graduate School of 
      Engineering, Tohoku University, 6-6-06 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 
      980-8579, Japan.
FAU - Li, Yu-You
AU  - Li YY
AD  - Department of Civil and Environmental Engineering, Graduate School of 
      Engineering, Tohoku University, 6-6-06 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 
      980-8579, Japan; Graduate School of Environmental Studies, Tohoku University, 
      6-6-06 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan. Electronic 
      address: gyokuyu.ri.a5@tohoku.ac.jp.
LA  - eng
PT  - Journal Article
DEP - 20200117
PL  - England
TA  - Water Res
JT  - Water research
JID - 0105072
RN  - 0 (Sewage)
RN  - 27YLU75U4W (Phosphorus)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - Anaerobiosis
MH  - Bioreactors
MH  - Denitrification
MH  - In Situ Hybridization, Fluorescence
MH  - *Nitrogen
MH  - Oxidation-Reduction
MH  - *Phosphorus
MH  - Sewage
OTO - NOTNLM
OT  - 25  degrees C
OT  - Anammox
OT  - Expanded bed reactor
OT  - HAP
OT  - Phosphorus recovery
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2020/01/27 06:00
MHDA- 2020/02/25 06:00
CRDT- 2020/01/27 06:00
PHST- 2019/10/15 00:00 [received]
PHST- 2019/12/18 00:00 [revised]
PHST- 2020/01/13 00:00 [accepted]
PHST- 2020/01/27 06:00 [pubmed]
PHST- 2020/02/25 06:00 [medline]
PHST- 2020/01/27 06:00 [entrez]
AID - S0043-1354(20)30046-4 [pii]
AID - 10.1016/j.watres.2020.115510 [doi]
PST - ppublish
SO  - Water Res. 2020 Apr 1;172:115510. doi: 10.1016/j.watres.2020.115510. Epub 2020 
      Jan 17.