Assessment of Leaching Characteristics of Solidified Products Containing Secondary Alkaline Lead Slag
Апстракт
Reuse of waste is one of the main principles of sustainable development and circular economy. Secondary alkaline lead slag is a hazardous waste generated in the recycling process of lead-acid batteries that may be suitable in construction materials. The environmental impact of the use of lead slag as a partial replacement of fine aggregates in the cement-based stabilization/solidification (S/S) process for the preparation of concrete was studied in this paper. Solidified products containing 10%, 15%, 20%, and 25% slag were laboratory tested by unconfined compressive strength (UCS) analyses and the Toxicity Characteristic Leaching Procedure (TCLP). At the same time, the leachability of toxic elements from solidified products with a high percent of slag was evaluated under environmental conditions for during one year. The results of the UCS and TCLP indicated that utilization of this type of slag in cement-based applications may be justified with its controlled addition. However, the des...cribed application of the slag was disputed due to the high release of As under high alkaline environmental conditions. Eh-pH analyses and the geochemical modeling using the software PHREEQC were evaluated, as well as the mechanism of pollutant (Pb, As) immobilization (precipitation, adsorption) as a function of pH conditions.
Кључне речи:
slag / lead / arsenic / leaching / solidification / stabilization / geochemical modelingИзвор:
International Journal of Environmental Research and Public Health, 2019, 16, 11Издавач:
- MDPI, Basel
Финансирање / пројекти:
- Иновативна синергија нус-продуката, минимизације отпада и чистије производње у металургији (RS-34033)
DOI: 10.3390/ijerph16112005
ISSN: 1661-7827
PubMed: 31195657
WoS: 000472132900133
Scopus: 2-s2.0-85068150322
Колекције
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Štulović, Marija AU - Radovanović, Dragana AU - Kamberović, Željko AU - Korać, Marija AU - Anđić, Zoran PY - 2019 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4240 AB - Reuse of waste is one of the main principles of sustainable development and circular economy. Secondary alkaline lead slag is a hazardous waste generated in the recycling process of lead-acid batteries that may be suitable in construction materials. The environmental impact of the use of lead slag as a partial replacement of fine aggregates in the cement-based stabilization/solidification (S/S) process for the preparation of concrete was studied in this paper. Solidified products containing 10%, 15%, 20%, and 25% slag were laboratory tested by unconfined compressive strength (UCS) analyses and the Toxicity Characteristic Leaching Procedure (TCLP). At the same time, the leachability of toxic elements from solidified products with a high percent of slag was evaluated under environmental conditions for during one year. The results of the UCS and TCLP indicated that utilization of this type of slag in cement-based applications may be justified with its controlled addition. However, the described application of the slag was disputed due to the high release of As under high alkaline environmental conditions. Eh-pH analyses and the geochemical modeling using the software PHREEQC were evaluated, as well as the mechanism of pollutant (Pb, As) immobilization (precipitation, adsorption) as a function of pH conditions. PB - MDPI, Basel T2 - International Journal of Environmental Research and Public Health T1 - Assessment of Leaching Characteristics of Solidified Products Containing Secondary Alkaline Lead Slag IS - 11 VL - 16 DO - 10.3390/ijerph16112005 ER -
@article{ author = "Štulović, Marija and Radovanović, Dragana and Kamberović, Željko and Korać, Marija and Anđić, Zoran", year = "2019", abstract = "Reuse of waste is one of the main principles of sustainable development and circular economy. Secondary alkaline lead slag is a hazardous waste generated in the recycling process of lead-acid batteries that may be suitable in construction materials. The environmental impact of the use of lead slag as a partial replacement of fine aggregates in the cement-based stabilization/solidification (S/S) process for the preparation of concrete was studied in this paper. Solidified products containing 10%, 15%, 20%, and 25% slag were laboratory tested by unconfined compressive strength (UCS) analyses and the Toxicity Characteristic Leaching Procedure (TCLP). At the same time, the leachability of toxic elements from solidified products with a high percent of slag was evaluated under environmental conditions for during one year. The results of the UCS and TCLP indicated that utilization of this type of slag in cement-based applications may be justified with its controlled addition. However, the described application of the slag was disputed due to the high release of As under high alkaline environmental conditions. Eh-pH analyses and the geochemical modeling using the software PHREEQC were evaluated, as well as the mechanism of pollutant (Pb, As) immobilization (precipitation, adsorption) as a function of pH conditions.", publisher = "MDPI, Basel", journal = "International Journal of Environmental Research and Public Health", title = "Assessment of Leaching Characteristics of Solidified Products Containing Secondary Alkaline Lead Slag", number = "11", volume = "16", doi = "10.3390/ijerph16112005" }
Štulović, M., Radovanović, D., Kamberović, Ž., Korać, M.,& Anđić, Z.. (2019). Assessment of Leaching Characteristics of Solidified Products Containing Secondary Alkaline Lead Slag. in International Journal of Environmental Research and Public Health MDPI, Basel., 16(11). https://doi.org/10.3390/ijerph16112005
Štulović M, Radovanović D, Kamberović Ž, Korać M, Anđić Z. Assessment of Leaching Characteristics of Solidified Products Containing Secondary Alkaline Lead Slag. in International Journal of Environmental Research and Public Health. 2019;16(11). doi:10.3390/ijerph16112005 .
Štulović, Marija, Radovanović, Dragana, Kamberović, Željko, Korać, Marija, Anđić, Zoran, "Assessment of Leaching Characteristics of Solidified Products Containing Secondary Alkaline Lead Slag" in International Journal of Environmental Research and Public Health, 16, no. 11 (2019), https://doi.org/10.3390/ijerph16112005 . .