Sustainable Integrated Approach to Waste Treatment in Automotive Industry: Solidification/Stabilization, Valorization, and Techno-Economic Assessment

Marija Štulović, Dragana Radovanović, Zoran Anđić (), Nela Vujović, Jelena Ivanović, Sanja Jevtić and Željko Kamberović
Additional contact information
Marija Štulović: Innovation Center of the Faculty of Technology and Metallurgy in Belgrade Ltd., University of Belgrade, 11120 Belgrade, Serbia
Dragana Radovanović: Innovation Center of the Faculty of Technology and Metallurgy in Belgrade Ltd., University of Belgrade, 11120 Belgrade, Serbia
Zoran Anđić: Innovative Centre of the Faculty of Chemistry in Belgrade Ltd., University of Belgrade, 11000 Belgrade, Serbia
Nela Vujović: Institute for Technology of Nuclear and Other Mineral Raw Materials (ITNMS), Belgrade, 11040 Belgrade, Serbia
Jelena Ivanović: Faculty of Technology and Metallurgy, University of Belgrade, 11120 Belgrade, Serbia
Sanja Jevtić: Faculty of Technology and Metallurgy, University of Belgrade, 11120 Belgrade, Serbia
Željko Kamberović: Faculty of Technology and Metallurgy, University of Belgrade, 11120 Belgrade, Serbia

Sustainability, 2025, vol. 17, issue 19, 1-22

Abstract: An integrated approach to waste management is based on efficient and safe methods for waste prevention, recycling, and safe waste treatment. In accordance with these principles, in this study, non-hazardous aluminosilicate waste (dust and sand) was used in the solidification/stabilization (S/S) treatment of hazardous waste (coating, emulsion, and sludge) from the automotive industry. Also, the oily component of the waste was valorized and investigated for energy recovery through co-incineration. The two S/S processes were proposed and their sustainability was assessed by utilizing all types of waste generated in the same plant, obtaining stabilized material suitable for safe disposal and oil phases for further valorization, and by techno-economic analysis. The efficiency of the S/S processes was evaluated by measuring unconfined compressive strength, hydraulic conductivity, density, and the EN 12457-4 standard leaching test of S/S products, along with XRD, SEM-EDS, and TG-DTG analyses. The possibility of using the oil phase was assessed based on its calorific value. The techno-economic assessment compared the investments, operating costs, and potential savings of both treatment scenarios. The results show that an integrated approach enables safe waste immobilization and resource recovery, contributing to environmental protection and economic benefits.

Keywords: waste treatment; organic matter; stabilization/solidification; chemical demulsification; EN 12457; techno-economic analysis (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/17/19/8553/pdf (application/pdf)
https://www.mdpi.com/2071-1050/17/19/8553/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:17:y:2025:i:19:p:8553-:d:1756650

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().