Electrodialytic removal of heavy metals and chloride from municipal solid waste incineration fly ash and air pollution control residue in suspension – test of a new two compartment experimental cell

Kirkelund, Gunvor Marie; Magro, Cátia; Guedes, Paula; Jensen, Pernille Erland; Ribeiro, Alexandra B.; Ottosen, Lisbeth M.

doi:10.1016/j.electacta.2015.03.192

Cited by 49 publications

(28 citation statements)

References 20 publications

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“…The weak dependency of ED results on current density and treatment time is contrary to previous results on ED treatment of contaminated soil [24][25][26] and sediments [27] , which emphasized the necessity of optimization of those parameters, which is thus in fact surprising. Also, compared to previous results [13,28], leaching observed from raw, water pre-washed, acid-pre-washed and acid-treated ED treated SD was significantly lower for especially Pb but also Zn than what was found in the present work.…”

Section: Leaching From Sd Mswi Apc Residuecontrasting

confidence: 49%

Electrodialytic upgrading of three different municipal solid waste incineration residue types with focus on Cr, Pb, Zn, Mn, Mo, Sb, Se, V, Cl and SO4

Jensen

Kirkelund

Pedersen

et al. 2015

Electrochimica Acta

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Section: Leaching From Sd Mswi Apc Residuecontrasting

confidence: 49%

Electrodialytic upgrading of three different municipal solid waste incineration residue types with focus on Cr, Pb, Zn, Mn, Mo, Sb, Se, V, Cl and SO4

Jensen

Kirkelund

Pedersen

et al. 2015

Electrochimica Acta

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“…Electro-based technologies, such as electrokinetic and electrodialytic processes, have been the focus of vast environmental remediation research over the last three decades [7,8], both in-situ [9,10], and ex-situ [11,12,13]). Despite such research efforts, the technology readiness level (TRL) for many of those technologies remains very low; although most are considered promising, many are far from being introduced as efficient processes into the market.…”

Section: Introductionmentioning

confidence: 99%

Exploring hydrogen production for self-energy generation in electroremediation: A proof of concept

et al. 2019

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Highlights• Self-produced H2 from electrodialytic treatment of environmental matrices collected • Collected H2 average purity (% mol/mol) of ≈ 98%• A fuel cell used to produce electricity from the self-produced H2 (~1 V)• Experimental self-generated energy promotes savings on electroremediation (≈ 7%) AbstractElectrodialytic technologies are clean-up processes based on the application of a low-level electrical current to produce electrolysis reactions and the consequent electrochemically-induced transport of contaminants. These treatments inherently produce electrolytic hydrogen, an energy carrier, at the cathode compartment, in addition to other cathode reactions. However, exploring this by-product for self-energy generation in electroremediation has never been researched. In this work we present the study of hydrogen production during the electrodialytic treatment of three different environmental matrices (briny water, effluent and mine tailings), at two current intensities (50 and 100 mA). In all cases, hydrogen gas was produced with purities between 73% to 98%, decreasing the electrical costs of the electrodialytic treatment up to ≈ 7%. A protonexchange membrane fuel cell was used to evaluate the possibility to generate electrical energy from the hydrogen production at the cathode, showing a stable output (~1 V) and demonstrating the proof of concept of the process.

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“…The two‐compartment cell EDR design has been proven to reduce the acidification time, since the supply of protons from electrolysis takes place directly in the suspended solid compartment . Several studies have applied EDR to different solid matrices using the two‐compartment cell . Regarding EDR applications, it has been widely applied to different matrices, as can be concluded from numerous research works previously discussed.…”

Section: Electrochemical Technologiesmentioning

confidence: 99%

“…76 Several studies have applied EDR to different solid matrices using the two-compartment cell. 42,[77][78][79][80][81][82] Regarding EDR applications, it has been widely applied to different matrices, as can be concluded from numerous research works previously discussed. Table 1 summarizes relevant information about important studies dealing with EDR applied to different matrices.…”

Section: Overview Of Current Status Of Ekr and Ed: Applicationsmentioning

confidence: 99%

Electrodialytic processes in solid matrices. New insights into battery recycling. A review

Villén-Guzmán

Arhoun

Vereda‐Alonso

et al. 2019

J of Chemical Tech & Biotech

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Electrodialytic remediation has been widely applied to the recovery of different contaminants from numerous solid matrices, solving emerging issues of environmental concern. Results and conclusions reported in studies about real contaminated matrices are summarized in this work. The influence of pH value on the treatment effectiveness has been widely proved, highlighting the phenomenon of ‘water splitting’ in the membrane surface. This dissociation of water molecules is related to the ‘limiting current’ which it is desirable to exceed at the anion exchange membrane in order to produce the entering of protons toward the solid matrix. Other important parameters for the optimization of the technique, such as the current density and the liquid/solid ratio, are also discussed through the revision of studies using real solid matrices. This work also focuses on the pioneer proposal of electrokinetic technologies for the recycling of lithium ion batteries, considering the relevance of waste properties in the design and optimization of the technique. From a thorough literature revision, it could be concluded that further experimental results are needed to allow an optimal application of the technique to the rising problem of residues from batteries. The main aim of this work is to take the first steps in the recovery of valuable metals such as Li and Co from spent batteries, incorporating principles of green chemistry. © 2019 Society of Chemical Industry

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Electrodialytic removal of heavy metals and chloride from municipal solid waste incineration fly ash and air pollution control residue in suspension – test of a new two compartment experimental cell

Cited by 49 publications

References 20 publications

Electrodialytic upgrading of three different municipal solid waste incineration residue types with focus on Cr, Pb, Zn, Mn, Mo, Sb, Se, V, Cl and SO4

Electrodialytic upgrading of three different municipal solid waste incineration residue types with focus on Cr, Pb, Zn, Mn, Mo, Sb, Se, V, Cl and SO4

Exploring hydrogen production for self-energy generation in electroremediation: A proof of concept

Electrodialytic processes in solid matrices. New insights into battery recycling. A review

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