Rare earth elements geochemistry in springs from Taftan geothermal area SE Iran

Shakeri, Ata; Ghoreyshinia, Sayedkazem; Mehrabi, Behzad; Delavari, Morteza

doi:10.1016/j.jvolgeores.2015.07.023

Cited by 33 publications

(17 citation statements)

References 76 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These ratios show that the majority of the waters are enriched in the Light Rare Earth Elements (La-Eu, LREE) whereas they are poor in terms of the Heavy Rare Earth Elements (Gd-Lu, HREE) ( Figures 4b, d, f and h). Similar to many other studies in the literature in recent years (Gammons et al, 2005;Shakeri et al, 2015;Zhang et al, 2016;Bragin et al, 2018) the TDS amounts and ∑REE values have increased in SGF, IGF and AGF waters with increasing temperature. AGF waters, which are basic in character (pH ~9) compared to other sites, have very low TDS amounts (~97 mg/L) despite the measured high temperature (55°C).…”

Section: -Rare Earth Elements (Rees) and Yttriumsupporting

confidence: 87%

Rare Earth Elements and Yttrium Geochemistry of Eastern Black Sea Region (Ordu, Rize, Artvin) Geothermal Fields

Temizel¹,

Gültekin²,

Ersoy³

2018

Bulletin of the Mineral Research and Exploration

View full text Add to dashboard Cite

In this study, behavior and migration processes of rare earth elements (REEs) were determined in the thermal and cold waters of the geothermal fields in the Eastern Black Sea Region.The temperatures of the geothermal waters are between the range of 38 and 60 °C. The water types are Na-Ca-SO 4 for Sarmaşık (Ordu) field, Na-Ca-HCO 3 for Ikizdere (Rize) field, Na-Ca-CO 3-SO 4 , for Ayder (Rize) field and Na-HCO 3-Cl for Savsat (Artvin) field. All geothermal fields are in alkaline geothermal character (pH: 7-9.3) and have very low REE + Y concentrations, slightly significant Ce contens and significantly positive Eu anomalies (except for Ayder geothermal field). REE+Y content, fractionation and positive Eu anomalies of the investigated water are controlled by water/rock ratio, pH and minerals in the host rocks. According to the thermodynamic calculations, it was determined that the mobility of the REEs in geothermal fields were mainly controlled by Ln 3+ , LnOH 2+ , LnCl 2+ , Ln(SO 4) 2-, LnSO 4 + , LnHCO 3 2+ , Ln(CO 3) 2 and LnCO 3 + complexes.

show abstract

Section: -Rare Earth Elements (Rees) and Yttriumsupporting

confidence: 87%

Rare Earth Elements and Yttrium Geochemistry of Eastern Black Sea Region (Ordu, Rize, Artvin) Geothermal Fields

Temizel¹,

Gültekin²,

Ersoy³

2018

Bulletin of the Mineral Research and Exploration

View full text Add to dashboard Cite

show abstract

“…• Geothermal power plant: based on previous studies, 18 zones in Iran (with 31,000 km 2 space in total) have good potential to construct geothermal power plant (Shakeri et al, 2015).…”

Section: Identifying the Alternativesmentioning

confidence: 99%

“…(Shakeri et al, 2015) A 3 Wind power plant (Tizpar et al, 2014) A 4 Biomass power plant (Hamzeh et al, 2011) A 5 Solar power plant (Zoghi et al, 2017) A 6…”

mentioning

confidence: 99%

A novel MCDM model for prioritizing the renewable power plants’ construction

Sedady

Beheshtinia

2019

MEQ

View full text Add to dashboard Cite

Purpose The purpose of this paper is to propose a new multi-criteria decision making (MCDM) technique to determine the priority of renewable power plants construction conceding technical, economic, social, political and environmental aspects. Design/methodology/approach First, a comprehensive set of 5 main criteria of technical, economic, social, political and environmental are considered for renewable power plants construction, each including 5 sub-criteria (a total of 25 sub-criteria). Then, the analytic hierarchy process method is used to determine the weight of the criteria. Finally, a new MCDM technique proposed to prioritize the construction of renewable power plants, named TOPKOR. To demonstrate the capability of the proposed method, a case study is conducted in which six types of renewable power plants are evaluated. Findings Comparison results of the main criteria weights show that the “economic” [0.403], “environmental” [0.296] and “technical” [0.17] aspects have the highest importance, respectively. The results also show that solar, hydroelectric and wave and tidal power plants have the highest priority for construction, respectively. Research limitations/implications The result of this research could be useful for related decision makers in construction of the renewable power plants to have a comprehensive set of criteria in technical, economic, social, political and environmental aspects in their decision process. Originality/value This research provides a comprehensive set of criteria and sub-criteria for prioritizing the renewable power plants. Moreover, a new hybrid MCDM technique is introduced for prioritizing the construction of power plants.

show abstract

“…Geothermal brines, natural waters/lakes, and wastewater from fracking are known to contain elevated REE content due to long-term exposure to rare earth-rich rocks under geological settings. 25 With a global increase in geothermal energy and the exploration of unconventional oil and gas resources, large volumes of geothermal brine and produced water are being generated. Due to its abundance and availability, as well as its soluble form that is amenable to extraction without leaching, category 3 feedstocks represent an attractive mineral source for exploitation.…”

Section: ■ Process Descriptionmentioning

confidence: 99%

Techno-economic Assessment for Integrating Biosorption into Rare Earth Recovery Process

Jin

Park

Gupta

et al. 2017

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

The current uncertainty in the global supply of rare earth elements (REEs) necessitates the development of novel extraction technologies that utilize a variety of REE source materials. Herein, we examined the techno-economic performance of integrating a biosorption approach into a large-scale process for producing salable total rare earth oxides (TREOs) from various feedstocks. An airlift bioreactor is proposed to carry out a biosorption process mediated by bioengineered rare earth-adsorbing bacteria. Techno-economic assessments were compared for three distinctive categories of REE feedstocks requiring different pre-processing steps. Key parameters identified that affect profitability include REE concentration, composition of the feedstock, and costs of feedstock pretreatment and waste management. Among the 11 specific feedstocks investigated, coal ash from the Appalachian Basin was projected to be the most profitable, largely due to its high-value REE content. Its cost breakdown includes pre-processing (leaching primarily, 77.1%), biosorption (19.4%), and oxalic acid precipitation and TREO roasting (3.5%). Surprisingly, biosorption from the high-grade Bull Hill REE ore is less profitable due to high material cost and low production revenue. Overall, our results confirmed that the application of biosorption to low-grade feedstocks for REE recovery is economically viable.

show abstract

Rare earth elements geochemistry in springs from Taftan geothermal area SE Iran

Cited by 33 publications

References 76 publications

Rare Earth Elements and Yttrium Geochemistry of Eastern Black Sea Region (Ordu, Rize, Artvin) Geothermal Fields

Rare Earth Elements and Yttrium Geochemistry of Eastern Black Sea Region (Ordu, Rize, Artvin) Geothermal Fields

A novel MCDM model for prioritizing the renewable power plants’ construction

Techno-economic Assessment for Integrating Biosorption into Rare Earth Recovery Process

Contact Info

Product

Resources

About