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4 hasil untuk "Litha Yapi"

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  1. Artikel Jurnal

    Adsorption of tetracycline using silica nanoparticles: a comparative study of sodium silicate-derived and fly ash-derived silica nanoparticles

    Eric E. Houghton; Litha Yapi; Shepherd M. Tichapondwa

    Results in Engineering, Vol. 27 · 2025 · Inggris · DOAJ Scopus

    Fly ash (FA), a fine particulate residue produced from the combustion of coal in thermal power plants, is generated in substantial quantities and presents significant challenges related to its environmental management and disposal. Repurposing FA can mitigate waste accumulation while contributing…

  2. Artikel Jurnal

    Evaluating the effect of different types of dried Automotive Paint Sludge as cement-based composite

    Athi-enkosi Mavukwana; Litha Yapi; Julia Molto-Berenguer dkk.

    Journal of Building Materials and Structures, Vol. 12 No. 1 · 2025 · Inggris · DOAJ

    In this project, we aim to probe four different automotive paint sludge (APS) types­­­­; primer coat, phosphate pretreatment coat, base coat and clear coat sludge, as potential additives in cement paste. Specifically, Portland Cement paste was doped with the different APS types which only underwent…

  3. Artikel Jurnal Teks lengkap

    Coal Fly Ash-Based Adsorbents for Tetracycline Removal: Comparative Insights into Modification and Zeolite Conversion

    Eric E. Houghton; Litha Yapi; Nils Haneklaus dkk.

    Journal of Xenobiotics, Vol. 15 No. 2 · 2025 · Inggris · DOAJ Scopus

    Emerging xenobiotics, such as tetracycline (TC), pose significant risks to both the environment and human health. Adsorption is a recognized method for removing these contaminants, and in this study, fly ash (FA), a by-product of coal combustion, was modified to develop adsorbents. Acid-modified FA…

  4. Artikel Jurnal

    Thermal Decomposition Behavior and Characterization of Automotive Paint Sludge

    Pfulwani Kalani; Ines Oliver; Julia Molto-Berenguer dkk.

    International Journal of Chemical Engineering, Vol. 2025 · 2025 · Inggris · DOAJ Scopus

    Automotive paint sludge (APS) is a ubiquitous, recalcitrant waste product of the vehicle manufacturing process. The potential of APS for energy and chemical production via pyrolysis and gasification is undermined by the absence of methodologically consistent, cross-stream physicochemical…