Publications by authors named "Temenuzhka Radoykova"
The speciation analysis of arsenic has consistently been a subject of great interest. However, it remains challenging to analyze complex matrix samples that contain both arsenic and interfering components. In this case, it can be hard to choose the right combinations of different instrumental methods, or a separation method followed by detection, which is usually done using a spectral approach (hybrid methods).
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- * The study analyzes various properties of the mine tailings, including particle size, chemical composition, and their reactivity in alkaline conditions, which are crucial for the geopolymerization process.
- * Results indicate that heavy metals in the tailings remain mostly inert during geopolymer creation, suggesting that the geopolymers produced will have a minimal negative impact on the environment.
The present study aimed at utilizing technically hydrolyzed lignin (THL), industrial biomass residue, derived in high-temperature diluted sulfuric acid hydrolysis of softwood and hardwood chips to sugars. The THL was carbonized in a horizontal tube furnace at atmospheric pressure, in inert atmosphere and at three different temperatures (500, 600, and 700 °C). Biochar chemical composition was investigated along with its HHV, thermal stability (thermogravimetric analysis), and textural properties.
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