PMID- 33836330
OWN - NLM
STAT- MEDLINE
DCOM- 20210719
LR  - 20210719
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 416
DP  - 2021 Aug 15
TI  - Simultaneous removal of calcium, fluoride, nickel, and nitrate using microbial 
      induced calcium precipitation in a biological immobilization reactor.
PG  - 125776
LID - S0304-3894(21)00740-8 [pii]
LID - 10.1016/j.jhazmat.2021.125776 [doi]
AB  - In this research, an immobilized biofilm reactor was established for the 
      simultaneous removal of calcium (Ca(2+)), fluoride (F(-)), nickel (Ni(2+)), and 
      nitrate (NO(3)(-)-N) by microbial induced calcium precipitation (MICP). The 
      operating parameters of the reactor, hydraulic retention time (HRT: 4, 8, and 
      12 h), influent Ca(2+) concentration (36.0, 108.0, and 180.0 mg L(-1)), and 
      influent Ni(2+) concentration (0.0, 3.0, and 6.0 mg L(-1)) were discussed. Under 
      the HRT of 12 h, influent Ca(2+) concentration of 180.0 mg L(-1), and influent 
      Ni(2+) concentration of 3.0 mg L(-1), the removal ratios of Ca(2+), F(-), Ni(2+), 
      and NO(3)(-)-N reached 45.31%, 79.55%, 85.11%, and 55.29%, respectively, which 
      was the reactor stable operation performance. The SEM revealed the morphology of 
      calcium-precipitated bio-crystals. XPS showed the Ca(2+) and Ni(2+) precipitate 
      components and XRD further revealed the formation of CaCO(3), Ca(5)(PO(4))(3)OH, 
      and NiCO(3) precipitation. Nitrogen (N(2)) was the main gas produced in the 
      reactor. Fluorescence spectroscopy manifested that extracellular polymers played 
      an important role in the organism nucleation. High-throughput sequencing 
      exhibited that Acinetobacter sp. H12 was the dominant bacterial group. This study 
      provided a new insight for simultaneous remediation of Ca(2+), F(-), Ni(2+), and 
      NO(3)(-)-N in water bodies.
CI  - Copyright (c) 2021 Elsevier B.V. All rights reserved.
FAU - Liu, Jiaran
AU  - Liu J
AD  - School of Environmental and Municipal Engineering, Xi'an University of 
      Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of 
      Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 
      710055, China.
FAU - Ali, Amjad
AU  - Ali A
AD  - School of Environmental and Municipal Engineering, Xi'an University of 
      Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of 
      Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 
      710055, China.
FAU - Su, Junfeng
AU  - Su J
AD  - School of Environmental and Municipal Engineering, Xi'an University of 
      Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of 
      Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 
      710055, China. Electronic address: sjf1977518@sina.com.
FAU - Wu, Zizhen
AU  - Wu Z
AD  - School of Environmental and Municipal Engineering, Xi'an University of 
      Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of 
      Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 
      710055, China.
FAU - Zhang, Ruijie
AU  - Zhang R
AD  - School of Environmental and Municipal Engineering, Xi'an University of 
      Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of 
      Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 
      710055, China.
FAU - Xiong, Renbo
AU  - Xiong R
AD  - School of Environmental and Municipal Engineering, Xi'an University of 
      Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of 
      Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 
      710055, China.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20210327
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (Nitrates)
RN  - 7OV03QG267 (Nickel)
RN  - N762921K75 (Nitrogen)
RN  - Q80VPU408O (Fluorides)
RN  - SY7Q814VUP (Calcium)
SB  - IM
MH  - Bioreactors
MH  - Calcium
MH  - *Denitrification
MH  - Fluorides
MH  - Nickel
MH  - *Nitrates
MH  - Nitrogen
OTO - NOTNLM
OT  - Biofilm reactor
OT  - Biomineralization
OT  - Defluoridation
OT  - Denitrification
OT  - Ni(2+) removal
EDAT- 2021/04/10 06:00
MHDA- 2021/07/20 06:00
CRDT- 2021/04/09 20:11
PHST- 2021/01/28 00:00 [received]
PHST- 2021/03/22 00:00 [revised]
PHST- 2021/03/25 00:00 [accepted]
PHST- 2021/04/10 06:00 [pubmed]
PHST- 2021/07/20 06:00 [medline]
PHST- 2021/04/09 20:11 [entrez]
AID - S0304-3894(21)00740-8 [pii]
AID - 10.1016/j.jhazmat.2021.125776 [doi]
PST - ppublish
SO  - J Hazard Mater. 2021 Aug 15;416:125776. doi: 10.1016/j.jhazmat.2021.125776. Epub 
      2021 Mar 27.