Processes and Technologies for the Recycling of Spent Fluorescent Lamps

Kujawski, Wojciech; Pośpiech, Beata

doi:10.2478/pjct-2014-0055

Cited by 12 publications

(2 citation statements)

References 36 publications

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“…In pyrometallurgical methods, the REE can be oxidized easily, however, with complicating recovery. 44 Hydrometallurgy is the process of solubilizing metals by using large quantities of chemical agents (acids). The disadvantages of this method include pre-treatment, long time, high operating cost, and large amounts of acidic wastewater effluent.…”

Section: Bio-recycling Of Phosphor Powder: Viability and The Relation...mentioning

confidence: 99%

E-waste mining and the transition toward a bio-based economy: The case of lamp phosphor powder

Giese

2022

MRS Energy & Sustainability

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Replacement of conventional hydrometallurgical and pyrometallurgical process used in E-waste recycling to recover metals can be possible. The metallurgical industry has been considered biohydrometallurgical-based technologies for E-waste recycling. Biorecovery of critical metals from phosphor powder from spent lamps is an example of transition to a bio-based circular economy. E-waste contains economically significant levels of precious, critical metals and rare-earth elements (REE), apart from base metals and other toxic compounds. Recycling and recovery of critical elements from E-waste using a cost-effective technology are now among the top priorities in metallurgy due to the rapid depletion of their natural resources. This paper focuses on the perceptions of recovery of REE from phosphor powder from spent fluorescent lamps regarding a possible transition toward a bio-based economy. An overview of the worldwide E-waste and REE is also demonstrated to reinforce the arguments for the importance of E-waste as a secondary source of some critical metals. Based on the use of bioprocesses, we argue that the replacement of conventional steps used in E-waste recycling by bio-based technological processes can be possible. The bio-recycling of E-waste follows a typical sequence of industrial processes intensely used in classic pyro- and hydrometallurgy with the addition of bio-hydrometallurgical processes such as bioleaching and biosorption. We use the case study of REE biosorption as a new technology based on biological principles to exemplify the potential of urban biomining. The perspective of transition between conventional processes for the recovery of valuable metals for biohydrometallurgy defines which issues related to urban mining can influence the mineral bioeconomy. This assessment is necessary to outline future directions for sustainable recycling development to achieve United Nations Sustainable Development Goals. Graphical Abstract

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Section: Bio-recycling Of Phosphor Powder: Viability and The Relation...mentioning

confidence: 99%

E-waste mining and the transition toward a bio-based economy: The case of lamp phosphor powder

Giese

2022

MRS Energy & Sustainability

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“…nitrate, chloride, sulfate, thiocyanate, etc.) is a difficult challenge due to the similarity in their ionic radii [2,4]. A survey of literature indicates that separation of REEs from aqueous solutions can be achieved by liquid-liquid extraction [2,3].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Polymer Inclusion Membranes based on Cellulose Triacetate for Recovery of Lanthanum(III) from Aqueous Solutions

Makowka

Pośpiech

2019

Autex Research Journal

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Polymer inclusion membrane (PIM) containing cellulose triacetate (CTA) as a polymer matrix and 2-nitrophenyl octyl ether (NPOE) as a plasticizer was developed. This membrane also contained di(2-ethylhexyl)phosphoric acid (D2EHPA) and tributyl phosphate (TBP) as the carriers of metal ions. The facilitated transport of lanthanum(III) from aqueous nitrate(V) solutions across PIM was studied. It was observed that metal ions were transported from the source phase into 2M H2SO4 as the receiving phase. The transport through PIM with D2EHPA as the ion carrier was found as the more effective method of lanthanum(III) removal from the aqueous solution than transport through PIM with TBP as the ion carrier.

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Hydrometallurgical recycling strategies for recovery of rare earth elements from consumer electronic scraps: a review

Akçıl

Ibrahim

Meshram

et al. 2021

J of Chemical Tech & Biotech

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The global demand for rare earth elements (REEs) for use in hi-tech applications is constantly rising, yet their supply is a matter of concern given high rates of disposal. However, urban waste such as consumer electronic scrap (CE-Scrap) has remarkable potential to come to the rescue and meet this growing demand, in line with circular economy principles. Notwithstanding this, globally, their commercial extraction and recovery are yet to be adopted, as <1% of REEs are obtained from recycled CE-Scrap, with the rest removed from the materials cycle. Considering the economic importance and industrial applicability of REEs, the current status of the potential CE-Scrap resources for REEs recycling is presented herein. The summarized availability of all REEs, their mode of occurrence and the prospects of relevant recycling processes, typically by the hydrometallurgical route, are discussed. The feasibility of using established REE extraction and recovery technologies is discussed concerning CE-Scrap such as spent fluorescent lamps, spent NiMH hybrid batteries, computer monitor scrap, and scrap NdFeB magnets. Furthermore, the pros and cons associated with their separation are discussed along with the future directions of research and policies to be envisaged in urban resource recycling.

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Processes and Technologies for the Recycling of Spent Fluorescent Lamps

Cited by 12 publications

References 36 publications

E-waste mining and the transition toward a bio-based economy: The case of lamp phosphor powder

E-waste mining and the transition toward a bio-based economy: The case of lamp phosphor powder

Synthesis of Polymer Inclusion Membranes based on Cellulose Triacetate for Recovery of Lanthanum(III) from Aqueous Solutions

Hydrometallurgical recycling strategies for recovery of rare earth elements from consumer electronic scraps: a review

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