A Novel biomineralization process For continuous, selective recovery of rare earth elements

AJ Murray; S Singh; D Vavlekas; MR Tolley; TP Hathway; RE Baylis; R Boden; LE Macaskie

A Novel biomineralization process For continuous, selective recovery of rare earth elements

AJ Murray, S Singh, D Vavlekas, MR Tolley, TP Hathway, RE Baylis, R Boden, LE Macaskie

School of Biological and Marine Sciences

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Abstract

We report rare earth element (REE) recovery using immobilized Serratia biofilm depositing metal phosphate via a robust enzymatic mechanism. Activity was approximately halved at pH 3.5 and restored at pH 5.5. REE(III) was recovered selectively against Th(IV) but the method was non-selective between different REEs (La, Y, Eu, Nd). Biofilms were active for a year (half life of ~ 3 months). The activity of aged biofilm was enhanced by pre-nucleation (‘priming’) with NdPO 4 prior to onset of flow-through conditions. The use of different ‘priming’ metals and bacteria via a combinatorial approach revealed some REE selectivity through the selective exclusion of specific REEs.

Original language	English
Title of host publication	53rd Conference of Metallurgists Vancouver, Canada 28/09/2014 to 01/10/2014 Montreal, Quebec, Canada Canadian Institute of Mining, Metallurgy and Petroleum
Editors	N Verbaan
Number of pages	0
Volume	0
Publication status	Published - 1 Oct 2014
Event	53rd Conference of Metallurgists - Vancouver, Canada Duration: 28 Sept 2014 → 1 Oct 2014

Conference

Conference	53rd Conference of Metallurgists
Period	28/09/14 → 1/10/14

Keywords

Rare earth biorecovery
immobilized cells
biofilm
Serratia
lanthanum
yttrium
neodymium
europium
selectivity
biomineralization
REE phosphate

Cite this

Murray, AJ., Singh, S., Vavlekas, D., Tolley, MR., Hathway, TP., Baylis, RE., Boden, R., & Macaskie, LE. (2014). A Novel biomineralization process For continuous, selective recovery of rare earth elements. In N. Verbaan (Ed.), 53rd Conference of Metallurgists Vancouver, Canada 28/09/2014 to 01/10/2014 Montreal, Quebec, Canada Canadian Institute of Mining, Metallurgy and Petroleum (Vol. 0)

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title = "A Novel biomineralization process For continuous, selective recovery of rare earth elements",

abstract = "We report rare earth element (REE) recovery using immobilized Serratia biofilm depositing metal phosphate via a robust enzymatic mechanism. Activity was approximately halved at pH 3.5 and restored at pH 5.5. REE(III) was recovered selectively against Th(IV) but the method was non-selective between different REEs (La, Y, Eu, Nd). Biofilms were active for a year (half life of ~ 3 months). The activity of aged biofilm was enhanced by pre-nucleation ({\textquoteleft}priming{\textquoteright}) with NdPO 4 prior to onset of flow-through conditions. The use of different {\textquoteleft}priming{\textquoteright} metals and bacteria via a combinatorial approach revealed some REE selectivity through the selective exclusion of specific REEs.",

keywords = "Rare earth biorecovery, immobilized cells, biofilm, Serratia, lanthanum, yttrium, neodymium, europium, selectivity, biomineralization, REE phosphate",

author = "AJ Murray and S Singh and D Vavlekas and MR Tolley and TP Hathway and RE Baylis and R Boden and LE Macaskie",

year = "2014",

month = oct,

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language = "English",

volume = "0",

editor = "N Verbaan",

booktitle = "53rd Conference of Metallurgists Vancouver, Canada 28/09/2014 to 01/10/2014 Montreal, Quebec, Canada Canadian Institute of Mining, Metallurgy and Petroleum",

note = "53rd Conference of Metallurgists ; Conference date: 28-09-2014 Through 01-10-2014",

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Murray, AJ, Singh, S, Vavlekas, D, Tolley, MR, Hathway, TP, Baylis, RE, Boden, R & Macaskie, LE 2014, A Novel biomineralization process For continuous, selective recovery of rare earth elements. in N Verbaan (ed.), 53rd Conference of Metallurgists Vancouver, Canada 28/09/2014 to 01/10/2014 Montreal, Quebec, Canada Canadian Institute of Mining, Metallurgy and Petroleum. vol. 0, 53rd Conference of Metallurgists, 28/09/14.

A Novel biomineralization process For continuous, selective recovery of rare earth elements. / Murray, AJ; Singh, S; Vavlekas, D et al.
53rd Conference of Metallurgists Vancouver, Canada 28/09/2014 to 01/10/2014 Montreal, Quebec, Canada Canadian Institute of Mining, Metallurgy and Petroleum. ed. / N Verbaan. Vol. 0 2014.

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

TY - CHAP

T1 - A Novel biomineralization process For continuous, selective recovery of rare earth elements

AU - Murray, AJ

AU - Singh, S

AU - Vavlekas, D

AU - Tolley, MR

AU - Hathway, TP

AU - Baylis, RE

AU - Boden, R

AU - Macaskie, LE

PY - 2014/10/1

Y1 - 2014/10/1

N2 - We report rare earth element (REE) recovery using immobilized Serratia biofilm depositing metal phosphate via a robust enzymatic mechanism. Activity was approximately halved at pH 3.5 and restored at pH 5.5. REE(III) was recovered selectively against Th(IV) but the method was non-selective between different REEs (La, Y, Eu, Nd). Biofilms were active for a year (half life of ~ 3 months). The activity of aged biofilm was enhanced by pre-nucleation (‘priming’) with NdPO 4 prior to onset of flow-through conditions. The use of different ‘priming’ metals and bacteria via a combinatorial approach revealed some REE selectivity through the selective exclusion of specific REEs.

AB - We report rare earth element (REE) recovery using immobilized Serratia biofilm depositing metal phosphate via a robust enzymatic mechanism. Activity was approximately halved at pH 3.5 and restored at pH 5.5. REE(III) was recovered selectively against Th(IV) but the method was non-selective between different REEs (La, Y, Eu, Nd). Biofilms were active for a year (half life of ~ 3 months). The activity of aged biofilm was enhanced by pre-nucleation (‘priming’) with NdPO 4 prior to onset of flow-through conditions. The use of different ‘priming’ metals and bacteria via a combinatorial approach revealed some REE selectivity through the selective exclusion of specific REEs.

KW - Rare earth biorecovery

KW - immobilized cells

KW - biofilm

KW - Serratia

KW - lanthanum

KW - yttrium

KW - neodymium

KW - europium

KW - selectivity

KW - biomineralization

KW - REE phosphate

M3 - Chapter

VL - 0

BT - 53rd Conference of Metallurgists Vancouver, Canada 28/09/2014 to 01/10/2014 Montreal, Quebec, Canada Canadian Institute of Mining, Metallurgy and Petroleum

A2 - Verbaan, N

T2 - 53rd Conference of Metallurgists

Y2 - 28 September 2014 through 1 October 2014

ER -

A Novel biomineralization process For continuous, selective recovery of rare earth elements

Abstract

Conference

Keywords

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