PMID- 33310318
OWN - NLM
STAT- MEDLINE
DCOM- 20210531
LR  - 20210531
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 406
DP  - 2021 Mar 15
TI  - Isolation of biosynthetic crystals by microbially induced calcium carbonate 
      precipitation and their utilization for fluoride removal from groundwater.
PG  - 124748
LID - S0304-3894(20)32738-2 [pii]
LID - 10.1016/j.jhazmat.2020.124748 [doi]
AB  - Biosynthetic crystals (BC) were prepared through microbially induced calcium 
      carbonate precipitation (MICP) for fluoride (F(-)) removal from the groundwater. 
      Batch experiments were conducted to evaluate the fluoride adsorption capacity and 
      the impacts of critical factors (organic matter, pH, initial fluoride 
      concentration and BC dosage) on defluorination efficiency of BC. The maximum 
      adsorption amount and defluorination efficiency were recorded as 5.10 mg g(-1) 
      and 98.24%, respectively. The adsorption kinetics and isotherms studies showed 
      that pseudo-second-order kinetic model and Freundlich isotherm model were best 
      fitting to the reaction. Adsorption thermodynamic parameters indicated a 
      spontaneous, endothermic and thermodynamically favorable adsorption process. 
      Moreover, the mechanism of F(-) removal by BC was further analyzed by SEM, XPS, 
      XRD and FTIR. The method can cope with the problem of applying the external 
      organic substances in MICP, and avoid the microbial safety risk in the effluent. 
      As an economically and environmentally friendly adsorbent, BC can be used for 
      F(-) removal from groundwater.
CI  - Copyright (c) 2020 Elsevier B.V. All rights reserved.
FAU - Wang, Zhao
AU  - Wang 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 - 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; State Key Laboratory of Green Building in West China, Xi'an 
      University of Architecture and Technology, Xi'an 710055, China. Electronic 
      address: sjf1977518@sina.com.
FAU - Hu, Xiaofen
AU  - Hu X
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. Electronic address: amjadali@aup.edu.pk.
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.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20201203
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (Water Pollutants, Chemical)
RN  - H0G9379FGK (Calcium Carbonate)
RN  - Q80VPU408O (Fluorides)
SB  - IM
MH  - Adsorption
MH  - Calcium Carbonate
MH  - Fluorides
MH  - *Groundwater
MH  - Hydrogen-Ion Concentration
MH  - Kinetics
MH  - Thermodynamics
MH  - *Water Pollutants, Chemical/analysis
MH  - *Water Purification
OTO - NOTNLM
OT  - Adsorption mechanism
OT  - Biosynthetic crystal
OT  - Calcium carbonate precipitation
OT  - Fluoride
OT  - Groundwater
EDAT- 2020/12/15 06:00
MHDA- 2021/06/01 06:00
CRDT- 2020/12/14 10:28
PHST- 2020/09/18 00:00 [received]
PHST- 2020/11/29 00:00 [revised]
PHST- 2020/11/30 00:00 [accepted]
PHST- 2020/12/15 06:00 [pubmed]
PHST- 2021/06/01 06:00 [medline]
PHST- 2020/12/14 10:28 [entrez]
AID - S0304-3894(20)32738-2 [pii]
AID - 10.1016/j.jhazmat.2020.124748 [doi]
PST - ppublish
SO  - J Hazard Mater. 2021 Mar 15;406:124748. doi: 10.1016/j.jhazmat.2020.124748. Epub 
      2020 Dec 3.