Author

Ekaterina Todorova

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Open access Sep 2026

Influence of the Spent Coffee Ground-to-Ammonium Lignosulfonate Ratio on the Performance of Wood-Fiber Biocomposites

Spent coffee grounds (SCGs) and ammonium lignosulfonate (ALS) are promising renewable constituents for wood-fiber biocomposites, but the effect of their relative proportion within the binder phase remains insufficiently understood. This preliminary study evaluated wood-fiber panels produced at a constant dry-matter mat...

V. Savov, P. Antov, Aleksandrina Kostadinova-Slaveva et al. · Materials · 0 citations

Open access Sep 2026

Reagent-Assisted Phytoextraction Potential for Heavy and Critical Metals on a Contaminated Post-Mining Substrate as NBS

Restoring contaminated and degraded land, including post-mining sites, industrial areas, and urban brownfields, is central to sustainable land management, and nature-based solutions (NBSs) such as phytoextraction can combine soil remediation with wider landscape-restoration goals. This screening-stage pot study evaluat...

Petar Petrov, V. Stefanova, Yana Daskalova et al. · Processes · 0 citations

Open access Aug 2026

CIRCULAR ECONOMY IN MATERIAL ECODESIGN: BRICK PRODUCTION FROM MINE WASTE

The construction materials industry increasingly faces difficulties in securing high-quality raw materials for ceramic products such as bricks. In Bulgaria, natural clay resources are limited, while growing demand for building materials and the transition toward a circular economy re-quire alternative raw materials. Th...

Aleksandrina Kostadinova-Slaveva, Ekaterina Todorova, Nikolay Neykov · Innovation in woodworking in... · 0 citations