DOI: 10.1016/j.watres.2017.11.046
Scopus记录号: 2-s2.0-85039973578
论文题名: Application of kinetic models to the design of a calcite permeable reactive barrier (PRB) for fluoride remediation
作者: Cai Q. ; Turner B.D. ; Sheng D. ; Sloan S.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 130 起始页码: 300
结束页码: 311
语种: 英语
英文关键词: Defluoridation
; Hill model
; Kinetics
; Metals
; Permeable reactive barrier
; Pseudo-second order
Scopus关键词: Barium compounds
; Calcite
; Cobalt
; Enzyme kinetics
; Fluorine compounds
; Groundwater
; Groundwater flow
; Kinetic parameters
; Kinetic theory
; Metal ions
; Metals
; Particle swarm optimization (PSO)
; Safety factor
; Akaike information criterion
; Comparison of models
; Defluoridation
; Fluoride sorption
; Information criterion
; Intra-particle diffusion
; Permeable reactive barriers
; Pseudo second order
; Cadmium
; barium ion
; cadmium
; calcium carbonate
; cobalt
; fluoride
; ground water
; manganese
; calcium carbonate
; fluoride
; heavy metal
; calcite
; design
; fluoride
; groundwater flow
; model
; parameterization
; permeability
; pollutant removal
; reaction kinetics
; reactive barrier
; sorption
; Article
; bioremediation
; controlled study
; diffusion
; half life time
; intermethod comparison
; kinetics
; permeability barrier
; priority journal
; thickness
; water flow
; adsorption
; Bayes theorem
; chemistry
; kinetics
; procedures
; theoretical model
; water management
; water pollutant
; Adsorption
; Bayes Theorem
; Calcium Carbonate
; Diffusion
; Fluorides
; Groundwater
; Kinetics
; Metals, Heavy
; Models, Theoretical
; Water Pollutants, Chemical
; Water Purification
英文摘要: The kinetics of fluoride sorption by calcite in the presence of metal ions (Co, Mn, Cd and Ba) have been investigated and modelled using the intra-particle diffusion (IPD), pseudo-second order (PSO), and the Hill 4 and Hill 5 kinetic models. Model comparison using the Akaike Information Criterion (AIC), the Schwarz Bayseian Information Criterion (BIC) and the Bayes Factor allows direct comparison of model results irrespective of the number of model parameters. Information Criterion results indicate “very strong” evidence that the Hill 5 model was the best fitting model for all observed data due to its ability to fit sigmoidal data, with confidence contour analysis showing the model parameters were well constrained by the data. Kinetic results were used to determine the thickness of a calcite permeable reactive barrier required to achieve up to 99.9% fluoride removal at a groundwater flow of 0.1 m.day−1. Fluoride removal half-life (t0.5) values were found to increase in the order Ba ≈ stonedust (a 99% pure natural calcite) < Cd < Co < Mn. A barrier width of 0.97 ± 0.02 m was found to be required for the fluoride/calcite (stonedust) only system when using no factor of safety, whilst in the presence of Mn and Co, the width increased to 2.76 ± 0.28 and 19.83 ± 0.37 m respectively. In comparison, the PSO model predicted a required barrier thickness of ∼46.0, 62.6 & 50.3 m respectively for the fluoride/calcite, Mn and Co systems under the same conditions. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113059
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: School of Automation, Guangdong University of Technology, Guangzhou, Guangdong 510006, China; Centre of Excellence for Geotechnical Science and Engineering, Civil Surveying and Environmental Engineering, The University of Newcastle, University Drive, Callaghan, N.S.W. 2308, Australia
Recommended Citation:
Cai Q.,Turner B.D.,Sheng D.,et al. Application of kinetic models to the design of a calcite permeable reactive barrier (PRB) for fluoride remediation[J]. Water Research,2018-01-01,130