An alternative approach for reusing slags from a plasma vitrification process

Kuo, Yi Chun; Tseng, Ho Jung; Chang, Juu En; Wang, Jian Wen; Wang, Chih Ta; Chen, Hung-Ta

doi:10.1016/j.jhazmat.2007.12.034

Cited by 10 publications

(7 citation statements)

References 19 publications

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“…In all cases the pyrolyzed material is inert and can be incorporated into concrete or transformed into other materials of high added value, such as fiberglass and carbon black (Kuorti et al, 2011;Kuo et al, 2008).…”

Section: Thermal Plasma Technologymentioning

confidence: 99%

Final treatment of spent batteries by thermal plasma

Cubas

Machado

et al. 2015

Journal of Environmental Management

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Section: Thermal Plasma Technologymentioning

confidence: 99%

Final treatment of spent batteries by thermal plasma

Cubas

Machado

et al. 2015

Journal of Environmental Management

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“…Similar results were reported in a previous study. 14,15 The PVS and UPR are physically bound by UPR. PVS acts as the nodes of the composite, which can improve the binding of both materials.…”

Section: Results and Discussion Metal Content Of Raw Materialsmentioning

confidence: 99%

Stabilization of Residues Obtained from the Treatment of Laboratory Waste: Part 2—Transformation of Plasma Vitrified Slag into Composites

Kuo

Tseng

Chang

et al. 2011

Journal of the Air & Waste Management Association

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The Sustainable Environment Research Center of National Cheng Kung University in Taiwan has set up a treatment plant to dispose of laboratory waste. In the treatment process, the residue from the incineration system and the physical and chemical system is vitrified by a plasma melting system. Part 1 of this study described the treatment path of metals during vitrification. In Part 2, plasma vitrified slag is reused by using a molding technology. Unsaturated polyester resin and glass fiber were used as the molding material and additive, respectively, in the molding process. With an appropriate mixing ratio of unsaturated polyester resin, glass fiber, and slag, the physical properties of composites improved, and the ultimate tensile strength reached 17.6 MPa. However, an excess amount of slag reduced the strength and even retarded the production of composites. Differential thermal analysis and the water bathing test results show that the composite decomposed at 80°C and that it vaporized at 187°C. Although the unsaturated polyester resin decomposed, the metal encapsulated in the slag did not leach out. The results show that the reuse of slag using molding technology should be taken into consideration.

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“…4), but burner melting and blast melting have also been developed [50]. In recent years' scientifi c literature, however, electric melting plasma technology is the favourite technique [34,45,[51][52][53][54][55][56][57][58][59]. Gomez et al have presented an overview of this technology [60].…”

Section: Vitrifi Cation Of Incinerator Ash (Step 2)mentioning

confidence: 99%

“…Elements or compounds with a low boiling point (Cl 2 , PbCl 2 , ZnCl 2 ) [65], however, are predominantly found in the secondary fl ue dust, while metals with a high boiling point (Fe, Cu, Ni) remain in the metal sump of the furnace [49]. Vitrifi ed waste incineration ash is considered to be stable in the environment [45,46,57,66]. The mobility of the metals remaining in the vitrifi ed slag is lowered [45, 46, 51-53, 58, 67] and usually even lower than for other techniques such as cement stabilization [61].…”

Section: The Properties and Fate Of Waste Glassmentioning

confidence: 99%

Vitrified forts as anthropogenic analogues for assessment of long-term stability of vitrified waste in natural environments

Sjöblom¹,

Ecke²,

Brännvall³

2013

Int. J. SDP

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The area's natural analogues, vitrifi ed forts, combustion technology, and vitrifi ed waste have been reviewed. The purpose was to identify if investigations of vitrifi ed rock in hill forts might be warranted for assessing the long-term integrity of vitrifi ed waste in natural environments. Wastes that are being vitrifi ed include ash from incineration of domestic waste, contaminated soil and fi ssion products from reprocessing of spent nuclear fuel. It was found that vitrifi ed materials in at least 200 hill forts constitute good anthropogenic analogues to vitrifi ed waste. The compositions vary considerably from site to site and even within one site and may correspond relatively well to the spans of parameters in the various vitrifi ed wastes. Glasses in vitrifi ed forts compare favourably to archaeological artefacts which are soda-and potash-based and consequently have different corrosion behaviours and may weather too quickly. Natural glasses might be too limited in composition variation and are perhaps also too durable. Combustion technology considerations based on quality of heat analyses indicate that at least some of the vitrifi cations of hill forts were carried out with the specifi c purpose of achieving strong and durable constructions. This makes it considerably easier to envisage how the vitrifi cations might have been carried out, and this, in turn, facilitates comparisons between anthropogenic analogues and modern vitrifi ed wastes.

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An alternative approach for reusing slags from a plasma vitrification process

Cited by 10 publications

References 19 publications

Final treatment of spent batteries by thermal plasma

Final treatment of spent batteries by thermal plasma

Stabilization of Residues Obtained from the Treatment of Laboratory Waste: Part 2—Transformation of Plasma Vitrified Slag into Composites

Vitrified forts as anthropogenic analogues for assessment of long-term stability of vitrified waste in natural environments

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