Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products
Samo za registrovane korisnike
2019
Autori
Štulović, Marija
Radovanović, Dragana

Kamberović, Željko

Korać, Marija

Anđić, Zoran

Ranitović, Milisav

Članak u časopisu (Objavljena verzija)

Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Secondary alkaline lead slag (SALS), generated during lead-acid batteries recycling, is a hazardous waste due to its high reactivity, solubility, and migration of toxic elements. After pulverization caused by storage under atmospheric condition for 30 days, the SALS was sieved and coarse fraction (+1 mm) was returned to the recycling process. Finer fraction (-1 mm) was treated by water leaching to remove soluble compounds. SALS compositions prior and after the pre-treatment and effects of liquid-to-solid ratio, stirring rate, and temperature on Na, S, Fe, As, and Pb leaching from SALS were analyzed. The results show that maximal leaching degrees were 95.78%, 75.32%, and 79.89% for Na, S, and As, respectively (20 l kg(-1), 600 min(-1), 333 K, 120 min). Leachability of Na and S from SALS was controlled by dissolution of Na2SO4 that could be recovered from leaching solution. Isothermal As leaching is described by diffusion mechanism with activation energy of 15.5 kJ mol(-1). Insoluble Pb ...and Fe sulfates, sulfides, and oxides remained in the SALS. Pre-treated SALS, with reduced mass up to 32%, was solidified in cement matrix. The results of toxicity characteristic leaching procedure and unconfined compressive strength confirmed effectiveness of As removal from SALS by water leaching and Pb immobilization in cement matrix containing 20% of SALS.
Ključne reči:
Secondary alkaline lead slag / Leaching / Kinetic / Arsenic / Sodium sulfateIzvor:
Journal of Material Cycles and Waste Management, 2019, 21, 6, 1402-1413Izdavač:
- Springer, New York
Finansiranje / projekti:
- Inovativna sinergija nus-produkata, minimizacije otpada i čistije proizvodnje u metalurgiji (RS-34033)
DOI: 10.1007/s10163-019-00892-8
ISSN: 1438-4957
WoS: 000500281100014
Scopus: 2-s2.0-85069650947
Kolekcije
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Štulović, Marija AU - Radovanović, Dragana AU - Kamberović, Željko AU - Korać, Marija AU - Anđić, Zoran AU - Ranitović, Milisav PY - 2019 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4096 AB - Secondary alkaline lead slag (SALS), generated during lead-acid batteries recycling, is a hazardous waste due to its high reactivity, solubility, and migration of toxic elements. After pulverization caused by storage under atmospheric condition for 30 days, the SALS was sieved and coarse fraction (+1 mm) was returned to the recycling process. Finer fraction (-1 mm) was treated by water leaching to remove soluble compounds. SALS compositions prior and after the pre-treatment and effects of liquid-to-solid ratio, stirring rate, and temperature on Na, S, Fe, As, and Pb leaching from SALS were analyzed. The results show that maximal leaching degrees were 95.78%, 75.32%, and 79.89% for Na, S, and As, respectively (20 l kg(-1), 600 min(-1), 333 K, 120 min). Leachability of Na and S from SALS was controlled by dissolution of Na2SO4 that could be recovered from leaching solution. Isothermal As leaching is described by diffusion mechanism with activation energy of 15.5 kJ mol(-1). Insoluble Pb and Fe sulfates, sulfides, and oxides remained in the SALS. Pre-treated SALS, with reduced mass up to 32%, was solidified in cement matrix. The results of toxicity characteristic leaching procedure and unconfined compressive strength confirmed effectiveness of As removal from SALS by water leaching and Pb immobilization in cement matrix containing 20% of SALS. PB - Springer, New York T2 - Journal of Material Cycles and Waste Management T1 - Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products EP - 1413 IS - 6 SP - 1402 VL - 21 DO - 10.1007/s10163-019-00892-8 ER -
@article{ author = "Štulović, Marija and Radovanović, Dragana and Kamberović, Željko and Korać, Marija and Anđić, Zoran and Ranitović, Milisav", year = "2019", abstract = "Secondary alkaline lead slag (SALS), generated during lead-acid batteries recycling, is a hazardous waste due to its high reactivity, solubility, and migration of toxic elements. After pulverization caused by storage under atmospheric condition for 30 days, the SALS was sieved and coarse fraction (+1 mm) was returned to the recycling process. Finer fraction (-1 mm) was treated by water leaching to remove soluble compounds. SALS compositions prior and after the pre-treatment and effects of liquid-to-solid ratio, stirring rate, and temperature on Na, S, Fe, As, and Pb leaching from SALS were analyzed. The results show that maximal leaching degrees were 95.78%, 75.32%, and 79.89% for Na, S, and As, respectively (20 l kg(-1), 600 min(-1), 333 K, 120 min). Leachability of Na and S from SALS was controlled by dissolution of Na2SO4 that could be recovered from leaching solution. Isothermal As leaching is described by diffusion mechanism with activation energy of 15.5 kJ mol(-1). Insoluble Pb and Fe sulfates, sulfides, and oxides remained in the SALS. Pre-treated SALS, with reduced mass up to 32%, was solidified in cement matrix. The results of toxicity characteristic leaching procedure and unconfined compressive strength confirmed effectiveness of As removal from SALS by water leaching and Pb immobilization in cement matrix containing 20% of SALS.", publisher = "Springer, New York", journal = "Journal of Material Cycles and Waste Management", title = "Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products", pages = "1413-1402", number = "6", volume = "21", doi = "10.1007/s10163-019-00892-8" }
Štulović, M., Radovanović, D., Kamberović, Ž., Korać, M., Anđić, Z.,& Ranitović, M.. (2019). Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products. in Journal of Material Cycles and Waste Management Springer, New York., 21(6), 1402-1413. https://doi.org/10.1007/s10163-019-00892-8
Štulović M, Radovanović D, Kamberović Ž, Korać M, Anđić Z, Ranitović M. Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products. in Journal of Material Cycles and Waste Management. 2019;21(6):1402-1413. doi:10.1007/s10163-019-00892-8 .
Štulović, Marija, Radovanović, Dragana, Kamberović, Željko, Korać, Marija, Anđić, Zoran, Ranitović, Milisav, "Leaching of toxic elements from secondary alkaline lead slag and stabilized/solidified products" in Journal of Material Cycles and Waste Management, 21, no. 6 (2019):1402-1413, https://doi.org/10.1007/s10163-019-00892-8 . .