Waste toner powder in concrete industry: An approach towards circular economy (CROSBI ID 260059)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Melnjak, Ivana ; Anić Vučinić, Aleksandra ; Radetić, Lucija ; Grčić, Ivana
engleski
Waste toner powder in concrete industry: An approach towards circular economy
Substantial quantities of toner cartridges are produced and used in photocopiers and printers every year. Spent toner cartridges are classified as hazardous waste because they contain toner powder with specific chemical composition, making a recovery of waste toner cartridges a very important issue from the aspect of waste management and environmental protection. Spent toner cartridges are mechanically processed to exploit valuable materials such as metals, plastics and magnets and to separate toner powder as a toxic waste. In this work, the use of waste toner powder as an additive in concrete was studied. The toner powder was mixed with calcium-based additive in ratio 50:50 immediately after the mechanical treatment. The resulting mixture (hereafter: WTP) was added to concrete at different percentages (1 %, 3, %, 5 % and 10 %) as a replacement for fine aggregate. All processes were performed on industrial scale. The addition of 1 % and 3 % of WTP lead to a concrete with the optimal properties. The possible impact on the environment was studied by the means of leaching test using valid regulations for a landfill. The modified concrete with 1 %, 3 %, 5 % WTP can be classified as inert waste.
circular economy, concrete industry, environmental impact, recycling, waste toner
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Podaci o izdanju
18 (9)
2019.
1897-1906
objavljeno
1582-9596
1843-3707
Povezanost rada
Interdisciplinarne tehničke znanosti