Exploring innovative solutions for aged concrete utilization: treatment of liquid radioactive waste

Šljivić-Ivanović, Marija Z.; Jelić, Ivana V.; Dimović, Slavko; Antonijević, Dragi; Jović, Mihajlo D.; Mraković, Ana; Smičiklas, Ivana

doi:10.1007/s10098-018-1563-x

Cited by 8 publications

(24 citation statements)

References 34 publications

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“…Cobalt is an essential element in all animal species and finds wide industrial application in alloys, catalysts, batteries and pigments [33]. The radionuclide 60 Co is a technologically significant isotope in medicine and food sterilisation, and it is also a constituent of the post-decommissioning liquid radioactive waste stream 20-30 years after reactor shutdown [1,5,6]. In humans, cobalt toxicity is associated with cardiomyopathy, hearing and sight impairment, hypothyroidism and various cancers [34].…”

Section: +mentioning

confidence: 99%

“…Of this, concrete-based demolition material accounts for the largest proportion, estimated to be between 75 and 88%, with the USA, China and Europe generating 320 Mt, 240 Mt and 510 Mt, respectively, per annum [3,4]. After water, concrete is the second most consumed resource with a global production of around one tonne per person per annum (~3.8 billion cubic metres), which will inevitably enter the C&D waste stream in the future [5].…”

Section: Introductionmentioning

confidence: 99%

“…The mechanical crushing, sieving and sorting of concrete-based demolition waste, for the recovery and reuse of the aggregates, produces a large volume of fine (<5 mm), low-density, cement-rich material for which further market development is required [7,10,11]. In this respect, a number of recent studies has been carried out that seek to exploit the porous, absorbent and alkaline nature of the cement-rich fine material in the treatment of contaminated water [1,3,5,6,10,[12][13][14][15][16][17][18][19][20][21][22][23] and marine sediment [24][25][26]. Crushed concrete fines (CCF) are reported to be effective in the removal of various heavy metal species (AsO 3 3− [12], CrO 4 2− [12], H n PO 4 (3−n)− [20][21][22][23], Cd 2+ [13][14][15], Cu 2+ [10,13,17,18], Ni 2+ [13], Pb 2+ [10,13,15,16,18], Zn 2+ [10,13,18]), radionuclides ( 60 Co 2+ …”

Section: Introductionmentioning

confidence: 99%

“…In this respect, a number of recent studies has been carried out that seek to exploit the porous, absorbent and alkaline nature of the cement-rich fine material in the treatment of contaminated water [1,3,5,6,10,[12][13][14][15][16][17][18][19][20][21][22][23] and marine sediment [24][25][26]. Crushed concrete fines (CCF) are reported to be effective in the removal of various heavy metal species (AsO 3 3− [12], CrO 4 2− [12], H n PO 4 (3−n)− [20][21][22][23], Cd 2+ [13][14][15], Cu 2+ [10,13,17,18], Ni 2+ [13], Pb 2+ [10,13,15,16,18], Zn 2+ [10,13,18]), radionuclides ( 60 Co 2+ [1,5,6], 63 Ni 2+ [1,5,…”

Section: Introductionmentioning

confidence: 99%

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Interactions of Cd2+, Co2+ and MoO42− Ions with Crushed Concrete Fines

Elmes

Coleman

2021

J. Compos. Sci.

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Construction and demolition activities generate approximately two thirds of the world’s waste, with concrete-based demolition material accounting for the largest proportion. Primary aggregates are recovered and reused, although the cement-rich fine fraction is underutilised. In this study, single metal batch sorption experiments confirmed that crushed concrete fines (CCF) are an effective sorbent for the maximum exclusion of 45.2 mg g−1 Cd2+, 38.4 mg g−1 Co2+ and 56.0 mg g−1 MoO42− ions from aqueous media. The principal mechanisms of sorption were determined, by scanning electron microscopy of the metal-laden CCF, to be co-precipitation with Ca2+ ions released from the cement to form solubility limiting phases. The removal of Co2+ and MoO42− ions followed a zero-order reaction and that of Cd2+ was best described by a pseudo-second-order model. The Langmuir model provided the most appropriate description of the steady state immobilisation of Cd2+ and Co2+, whereas the removal of MoO42− conformed to the Freundlich isotherm. Long equilibration times (>120 h), loose floc formation and high pH are likely to limit the use of CCF in many conventional wastewater treatment applications; although, these properties could be usefully exploited in reactive barriers for the management of contaminated soils, sediments and groundwater.

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Section: +mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Interactions of Cd2+, Co2+ and MoO42− Ions with Crushed Concrete Fines

Elmes

Coleman

2021

J. Compos. Sci.

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“…Izoterma dobijena za uzorak asfalta pokazala je trend porasta, ali je i ukupna sorpcija bila prilično niska [46]. U drugom sličnom istraživanju razmatrana je primenljivost otpadnog konstrukcionog betona kao sorbenta u imobilizaciji tečnog RAO [49]. Vrednost sorpcionog kapaciteta u ovom slučaju opadala je u nizu Ni 2+ (0.54 mmol/g) > Co 2+ (0.32 mmol/g) > Sr 2+ (0.25 mmol/g) [49].…”

Section: Otpadni Materijali Kao Sorbentiunclassified

Utilization of waste materials in heavy metals and radionuclides imobilization by sorption

Dimović¹,

Šljivić-Ivanović²,

Jelić³

2019

Tehnika

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Trend istraživanja sorpcionih karakteristika raznih prirodnih materijala, odnosno lako dostupnih sirovina, nus-proizvoda ili otpada iz raznih vrsta industrije poslednjih godina je sve više izražen. Upotrebom otpadnih materijala smanjuje se iskorišćenje prirodnih neobnovljivih resursa i/ili iskorišćenje raznih vidova energije za sintezu ili modifikaciju prirodnih sirovina i veštačkih materijala. Takođe, korišćenje otpadnih materijala kao sorbenata izuzetno je prihvatljivo s aspekta zaštite životne sredine s obzirom da utiče na smanjenje količina ovakvih vrsta otpada, troškova njihovog odlaganja i umanjenje opasnosti od hazarda koje neki od ovih otpada potencijalno mogu da izazovu u životnoj sredini. U ovom radu dat je pregled savremenih istraživanja otpadnih materija u imobilizaciji radionuklida i teških metala. Studije su pokazale da korišćenje otpadnih materijala u procesu sorpcije, odnosno kondicioniranja tečnog radioaktivnog otpada i prečišćavanja otpadnih voda može da predstavlja vrlo efikasne i ekonomski isplative alternative standardno korišćenim metodama, odnosno sorbentima. Nedavna istraživanja o primeni različitih otpadnih materijala i nezahtevnih tehnika njihove modifikacije u cilju poboljšanja procesa sorpcije obuhvataju širok spektar otpadnih materijala, kao što su razne vrste muljeva, šljake, elektrofilterskog pepela, biomase, otpada iz prehrambene industrije, građevinskog otpada i sl.

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Application of Copper Mining Waste in Radionuclide and Heavy Metal Immobilization

Dimović

Jelić

Šljivić-Ivanović

et al. 2021

CLEAN Soil Air Water

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Copper slag flotation tailings (CSFT), as the end waste from copper mining, are evaluated for radionuclide and heavy metal immobilization. Characterization of CSFT based on grain size and mineral composition, surface functional groups, pH and electrical conductivity in aqueous media, thermogravimetric analysis (TGA), determination of characteristic temperatures in sample melting process, leachability, and toxicity tests is conducted. The screening sorption of Mn(II), Co(II), Ni(II), Zn(II), Cd(II), and Pb(II) inactive isotopes from single-component solutions is performed. The Cd(II) ions show better sorption potential than other ions, with a sorption capacity of 0.08 mmol g −1 at the highest initial concentration. Sorption decreases in the sequence Cd(II) > Pb(II) > Zn(II) > Mn(II) > Ni(II) > Co(II) at all initial concentrations. Although CSFT shows lower sorption capability than synthetic sorbents based on fayalite and magnetite, its inexpensiveness and substantial accessible amount represent great advantages in wider utilization.

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Exploring innovative solutions for aged concrete utilization: treatment of liquid radioactive waste

Cited by 8 publications

References 34 publications

Interactions of Cd2+, Co2+ and MoO42− Ions with Crushed Concrete Fines

Interactions of Cd2+, Co2+ and MoO42− Ions with Crushed Concrete Fines

Utilization of waste materials in heavy metals and radionuclides imobilization by sorption

Application of Copper Mining Waste in Radionuclide and Heavy Metal Immobilization

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