skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Application of nanofiltration for Rare Earth Elements recovery from coal fly ash leachate: Performance and cost evaluation

Journal Article · · Chemical Engineering Journal

Here this work evaluated nanofiltration (NF) as a potential step in the recovery process of Rare Earth Elements (REEs) from leachates of coal combustion fly ashes. A pre-treatment step, by pH adjustment and microfiltration (MF), has been studied to separate REEs by major elements. The individual and combined effects of applied pressure (12–24 bar) and NF feed acidity (pH 1.5–3.5) on rejection of six critical REEs and permeate flux have been investigated via response surface methodology (RSM). The resulting model equations were used to develop a cost model for the recovery chain, in order to select the optimum NF operating conditions. The optimization of the REE recovery chain, including pre-treatment and NF, was done with respect to the objective of maximizing the difference between NF concentrate economic value and treatment cost. NF with an appropriate MF pre-treatment has been effective in concentrating REEs from fly ash leachate, reaching the maximum potential gain at the optimum operating conditions of 12 bar and pH 3.5.

Research Organization:
Duke Univ., Durham, NC (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE); National Science Foundation (NSF); TUBITAK 2219-International Postdoctoral Research Fellowship
Grant/Contract Number:
FE0026952; CBET-1510965
OSTI ID:
1614313
Alternate ID(s):
OSTI ID: 1548199
Journal Information:
Chemical Engineering Journal, Vol. 349, Issue C; ISSN 1385-8947
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 52 works
Citation information provided by
Web of Science

References (39)

Simulated cost comparisons of hollow-fiber and integrated nanofiltration configurations journal June 2000
Experimental design and optimization journal August 1998
Separation of ions in acidic conditions using NF journal September 2002
Recovery of rare earth elements from phosphate rock by hydrometallurgical processes – A critical review journal March 2018
Evaluation of membrane fouling and flux decline related with mass transport in nanofiltration of tartrazine solution journal August 2010
Factors influencing flux decline during nanofiltration of solutions containing dyes and salts journal January 2004
Predicting flux and rejection of multicomponent salts mixture in nanofiltration membranes journal August 2003
Study of Biosorption of Rare Earth Metals (La, Nd, Eu, Gd) by Sargassum sp. Biomass in Batch Systems: Physicochemical Evaluation of Kinetics and Adsorption Models journal May 2009
Trends in the Rare Earth Element Content of U.S.-Based Coal Combustion Fly Ashes journal May 2016
Biosorption of lanthanum and cerium from aqueous solutions by Platanus orientalis leaf powder journal January 2008
Estimating costs for integrated membrane systems journal November 1998
Potentials of using nanofiltration to recover phosphorus from sewage sludge journal April 2008
Evaluation of Feed Concentration Effects on Salt/Ion Transport through RO/NF Membranes with the Nernst-Planck-Donnan Model journal November 2002
Techno-economic analysis of textile dye bath wastewater treatment by integrated membrane processes under the zero liquid discharge approach journal January 2012
Preconcentration of rare earth elements on activated carbon and its application to groundwater and sea-water analysis journal January 1996
Purification of rare earth elements from monazite sulphuric acid leach liquor and the production of high-purity ceric oxide journal May 2010
Sorption and fractionation of rare earth element ions onto nanoscale zerovalent iron particles journal August 2018
Estimations of Clarkes for Carbonaceous biolithes: World averages for trace element contents in black shales and coals journal April 2009
Cost and environmental impact of nanofiltration in treating chemically pre-treated surface water journal November 2006
Separation of praseodymium(III) from aqueous solutions by nanofiltration journal January 2013
Impact of coal properties on coal combustion by-product quality: examples from a Kentucky power plant journal August 2004
Separation and recovery of rare earth elements from spent nickel–metal-hydride batteries using synthetic adsorbent journal June 2013
Cost estimates for membrane filtration and conventional treatment journal December 1994
Determination of rare Earth Elements in Sixteen Silicate Reference Samples by Icp‐Ms After tm Addition and ion Exchange Separation journal April 1996
Recovery of yttrium from cathode ray tubes and lamps’ fluorescent powders: experimental results and economic simulation journal November 2013
Study on a novel flat renewal supported liquid membrane with D2EHPA and hydrogen nitrate for neodymium extraction journal January 2012
Separation of rare earth metals using a supported liquid membrane with DTPA journal July 1995
Coal deposits as potential alternative sources for lanthanides and yttrium journal May 2012
Biosorption of La, Eu and Yb using Sargassum biomass journal January 2005
Recovery of rare earth metals through biosorption: An overview journal October 2013
Cost Model for Low‐Pressure Membrane Filtration journal September 1993
Fouling of nanofiltration membranes by dyes during brine recovery from textile dye bath wastewater journal February 2015
Phosphorus removal by NF90 membrane: Optimisation using central composite design journal July 2014
Coupling effects of feed solution pH and ionic strength on the rejection of boron by NF/RO membranes journal April 2011
Review of technologies for oil and gas produced water treatment journal October 2009
Sorption of rare-earth ions on biopolymer gel beads of alginic acid journal March 1998
Preconcentration of ultratrace rare earth elements in seawater with 8-hydroxyquinoline immobilized polyacrylonitrile hollow fiber membrane for determination by inductively coupled plasma mass spectrometry journal January 1999
Studies on Microbial Heavy Metal Retention from Uranium Mine Drainage Water with Special Emphasis on Rare Earth Elements journal March 2004
Nanofiltration of Mine Water: Impact of Feed pH and Membrane Charge on Resource Recovery and Water Discharge journal March 2014