Biotechnologies for critical raw material recovery from primary and secondary sources: R&amp;D priorities and future perspectives

Hennebel, Tom; Boon, Nico; Maes, Synthia; Lenz, Markus

doi:10.1016/j.nbt.2013.08.004

Cited by 124 publications

(91 citation statements)

References 74 publications

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“…In many countries, cobalt is classified as a strategic or critical metal. It is one of the 14 critical raw materials identified by the European Union (Hennebel et al, 2015). Lithium ion batteries, which use lithium cobalt oxide (LiCoO 2 ) as the cathode material, are widely used as a power source in mobile phones, laptops, video cameras and other electronic devices.…”

Section: Cobalt(iii)mentioning

confidence: 99%

“…Availability and supply of raw materials such as metal(loid)s can greatly influence the economy (in terms of exports and job creation) of many countries (Hennebel et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…To avoid the risk of price volatility and to stockpile raw materials for future generations, there is a need to identify alternative sources and to develop suitable technologies for their recovery. In this context, metallurgical wastes and process streams could be potential alternative sources for resource recovery, but the economics of metal recovery from such wastes needs re-estimation due to increased prices of certain metals over the years (Hennebel et al, 2015). Metal laden waste streams are generated in various anthropogenic activities such as mining, metallurgical operations, burning fossil fuels, cement production, electroplating, leather tanning, manufacturing plastics, fertilizers, pesticides, anticorrosive agents, Ni-Cd batteries, paints, pigments, dyes and photovoltaic devices (Fu and Wang, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Metals removal and recovery in bioelectrochemical systems: A review

Nancharaiah

Mohan

2015

Bioresource Technology

367

138

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Section: Cobalt(iii)mentioning

confidence: 99%

“…Availability and supply of raw materials such as metal(loid)s can greatly influence the economy (in terms of exports and job creation) of many countries (Hennebel et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Metals removal and recovery in bioelectrochemical systems: A review

Nancharaiah

Mohan

2015

Bioresource Technology

367

138

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“…Hence, commonly a metal can be labelled 'critical' which is facing high shortage in supply, excessive environmental risk and be of significant economic importance under the availability of a limited geo-boundary. In that case, the criticality of metal can simply be presented as follows [4]: Criticality = Supply risk × Vulnerability = Likelihood of supply disruption × Economic Consequences (1) Notably, the availability of these metals largely influences the energy supply; country's economy, export business, job creation and geopolitical relation of two individual countries [5], hence can also be Notably, the availability of these metals largely influences the energy supply; country's economy, export business, job creation and geopolitical relation of two individual countries [5], hence can also be pronounced as 'strategic critical metals'. Figure 1 presents the list of such metals, including uranium (the major source of non-fossil, nuclear fuel) and gold (widely used for plating other conductor materials besides its economic importance in global trade) [2,3,6].…”

Section: Introductionmentioning

confidence: 99%

Bio-Reclamation of Strategic and Energy Critical Metals from Secondary Resources

Ilyas

Kim

Lee

et al. 2017

Metals

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Abstract:Metals with an average crustal abundance of <0.01 ppm, which are high in supply shortage due to soaring demand, can, under the excessive environmental risk and <1% recycling rate of their production, be termed as 'critical' in a limited geo-boundary. A global trend to the green energy and low carbon technologies with geopolitical scenario is challenging for the sustainable reclamation of these metals from secondary resources. Among the available processes, bio-reclamation can be a sustainable technique for extracting and concentrating these metals. Therefore, in the present paper, the potential reclamation of critical metals (including rare earth elements, precious metals, and a common nuclear fuel element, uranium) via their interaction with microbe/s has been reviewed.

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“…The increasing demand of REY as a critical material for modern technological developments has encouraged exploration for other potential sources (Massari & Ruberti 2013). As an example, a list of rare earth elements was identified as critical for the European Union, including yttrium (Y) (Hennebel et al 2015). This is because China is producing more than 90% of all rare earths, and the reserves are unequally distributed (Binnemans et al 2013).…”

Section: Opportunities Of Resource Recovery From Amdmentioning

confidence: 99%

Bio-Electrochemical process for Metal and Sulfur Recovery from Acid Mine Drainage

Zamora¹,

Alonso²

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Water recycling and resource recovery from acid mine drainage (AMD) are increasingly being regarded as desirable practices with direct benefits for the environment and the operational and economic viability of the resources sector.This thesis proves the concept of a novel bioelectrochemical system (BES) for the direct electrode-driven resource recovery and practically permanent AMD treatment. The technology consists of a two-cell bioelectrochemical setup to enable the removal of sulfate from the ongoing reduction-oxidation sulfur cycle, thereby also reducing salinity, without external addition of chemicals.In particular, the goals of this thesis are: (i) to enrich a sulfate reducing bacterial community capable of directly utilising a carbon based cathode as electron donor for autotrophic sulfate reduction, or via bioelectrochemically-produced H 2 ; (ii) to elucidate the electron flux pathways of autotrophic sulfate reduction and microbial interactions in cathodic mixed cultures; (iii) to develop a high-rate sulfate reducing bioelectrochemical reactor based on high surface area electrode materials; (iv) to design and implement a combined chemical-free bioelectrochemical process that enables the sulfur, metal and water recovery from AMD.In order to elucidate whether cathodes can effectively release electrons and act as the only electron donor to support sulfate reduction process, the effect of cathode potential and inoculum source were evaluated using electrochemical tools, including the recording of chronoamperometry and cyclic/linear sweep voltammetry (Chapter 5). Electrochemical and off-gas analysis coupled to liquid phase sampling was carried out to determine the electron fluxes from the electrode to the final electron acceptor (sulfate) during autotrophic sulfate reduction (Chapter 6). Fluorescence in situ hybridization (FISH) and digital image analysis (DAIME) of the microbial communities in z-stack confirmed the microbial stratification. After obtaining a well-functioning biocathode for autotrophic sulfate reduction, its performance was experimentally optimised in terms of high-surface area electrode materials, like multi-wall carbon nanotubes on reticulated vitreous carbon (MWCNT-RVC) and carbon granules (CG) (Chapter 7). Finally, a novel BES was tested for AMD treatment , outcompeting methanogens and homoacetogens for the hydrogen without the need to add chemical inhibitors.The findings of this thesis show that inexpensive CG can achieve higher current-tosulfide efficiencies at lower power consumption than the nano-modified three-dimensional MWCNT-RVC. Sequencing analysis of the 16S rRNA gene on day 58 revealed that MWCNT-RVC retained the bacteria and archaea population from the inoculum, while CG electrode surface was able to select for bacteria over archaea.The feasibility to integrate a two-stage BES was proven with a lab-scale setup for AMD treatment. Using AMD, the BES operation enhanced the sulfate reduction rate ( The solid metal-sludge was 2 times less voluminous and 9 times more readily s...

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Biotechnologies for critical raw material recovery from primary and secondary sources: R&D priorities and future perspectives

Cited by 124 publications

References 74 publications

Metals removal and recovery in bioelectrochemical systems: A review

Metals removal and recovery in bioelectrochemical systems: A review

Bio-Reclamation of Strategic and Energy Critical Metals from Secondary Resources

Bio-Electrochemical process for Metal and Sulfur Recovery from Acid Mine Drainage

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