scholarly journals An Overview of Rare Earth Elements in Sewage Sludges and Their Ashes

Proceedings ◽  
2018 ◽  
Vol 2 (23) ◽  
pp. 1462 ◽  
Author(s):  
M. Belén Folgueras ◽  
Manuela Alonso ◽  
Juan R. Folgueras ◽  
Susana Lage
Keyword(s):  
Rare Earth ◽  
Sewage Sludge ◽  
Rare Earth Elements ◽  
Environmental Context ◽  
Energy Potential ◽  
Sewage Sludges ◽  
The Moment

In this work, data about REY concentrations in sewage sludges and their ashes have been analysed. The source of REY in them is mainly geogenic, which is why sludges from regions like China and Brazil have higher concentrations. Thus, the combustion or co-combustion of sewage sludge as a way of recovery its energy potential and, secondarily, the processing of their ashes in order to obtain REY may be interesting, in certain regions, depending on the techno-economic and environmental context of the moment.

ESTIMATION OF THE ABUNDANCE AND DISTRIBUTION OF RARE EARTH ELEMENTS IN SOIL AROUND KADUNA REFINING AND PETROCHEMICAL COMPANY USING NUCLEAR TECHNIQUE

2020 ◽  
Vol 4 (2) ◽  
pp. 599-604
Author(s):  
Michael A. Onoja ◽  
P. H. Bukar ◽  
C. U. Omeje ◽  
A. M. Adamu
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Nuclear Technique ◽  
Flood Plains ◽  
Economic Exploitation ◽  
Rare Elements ◽  
Petrochemical Company ◽  
The Moment ◽  
Abundance And Distribution ◽  
Natural Pattern

Instrumental neutron activation analysis (INAA) technique was used to investigate the abundance and distribution of rare earth elements (REE) in soil around Kaduna Refinery. The aim of the study is to assess the rare elements potential of Nigeria for economic exploitation. Five REEs (La, Dy, Eu, Yb, and Lu) were detected in varying concentrations ranging from a minimum of 0.6 µg/g (Lu) to a maximum of 249.0 µg/g (La). The elements existed with trends consistent with the natural pattern of REEs in soil, showing significant Eu and Dy anomalies which characterize upper plains and flood plains. The levels of REEs in soil in the study area were generally slightly above background levels, with minimal (La, Dy, and Eu), moderate (Yb), and significant (Lu) enrichments and trending: Lu ˃Yb ˃ Eu ˃ Dy ˃ La. The abundance of the REEs investigated cannot establish a potential of Nigeria for economic exploitation of the mineral, hence, rare earth project in the study area is not viable at the moment.

Coal and sewage sludge ashes as sources of rare earth elements

Fuel ◽  
2017 ◽  
Vol 192 ◽  
pp. 128-139 ◽  
Author(s):  
M.B. Folgueras ◽  
M. Alonso ◽  
F.J. Fernández
Keyword(s):  
Rare Earth ◽  
Sewage Sludge ◽  
Rare Earth Elements

scholarly journals Quantification of individual Rare Earth Elements from industrial sources in sewage sludge

2021 ◽  
pp. 100092
Author(s):  
Ralf Kaegi ◽  
Alexander Gogos ◽  
Andreas Voegelin ◽  
Stephan J. Hug ◽  
Lenny H.E. Winkel ◽  
...  
Keyword(s):  
Rare Earth ◽  
Sewage Sludge ◽  
Rare Earth Elements ◽  
Industrial Sources

Flame spectra of the rare-earth elements*

1962 ◽  
Vol 18 (4) ◽  
pp. 1127-1153
Author(s):  
V FASSEL ◽  
R CURRY ◽  
R KNISELEY
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
The Rare Earth

Sc, Y, La-Lu Rare Earth Elements

1986 ◽  
Author(s):  
Ingeborg Hinz ◽  
Peter Kuhn ◽  
Ursula Vetter ◽  
Eberhard Warkentin
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements
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