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Search results for: CEMENT KILN DUST

  • Cement kiln dust

    Publication

    - Year 2021

    The volume of cement production in the world has remained at the level of approxi mately 4.1 billion tons/year. The cement production process is energy intensive and is the world’s leading emitter of carbon dioxide. Therefore, the main activities cement plants are aimed at introducing technologies changes in production of clinkier.The construction industry is responsible for the majority of CO2 emissions to the atmosphere: the...

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  • Influence of Rock Dust Additives as Fine Aggregate Replacement on Properties of Cement Composites—A Review

    Publication
    • M. Dobiszewska
    • O. Bagcal
    • A. Beycioğlu
    • D. Goulias
    • F. Köksal
    • M. Niedostatkiewicz
    • H. Ürünveren

    - Materials - Year 2022

    Concrete production consumes enormous amounts of fossil fuels, raw materials, and is energy intensive. Therefore, scientific research is being conducted worldwide regarding the possibility of using by-products in the production of concrete. The objective is not only to identify substitutes for cement clinker, but also to identify materials that can be used as aggregate in mortar and concrete productions. Among the potential alternative...

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  • Comprehensive stabilization of all streams of solid residues formed during sewage sludge thermal treatment – Case study

    Publication

    Modern wastewater treatment plants are currently struggling with the problem of processing and ecological management of sewage sludge. Thermal utilization is a frequently used practice of excess sludge utilization especially in large wastewater treatment plants, which seems to be a quite promising concept. However, during thermal treatment, fractions of ashes and dusts are generated. Such wastes, especially the dust fraction, can...

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  • The cement-bone bond is weaker than cement-cement bond in cement-in-cement revision arthroplasty. A comparative biomechanical study

    Publication

    - PLOS ONE - Year 2021

    This study compares the strength of the native bone-cement bond and the old-new cement bond under cyclic loading, using third generation cementing technique, rasping and contamination of the surface of the old cement with biological tissue. The possible advantages of additional drilling of the cement surface is also taken into account. Femoral heads from 21 patients who underwent a total hip arthroplasty performed for hip arthritis...

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  • Experiments and numerical modeling of meat and bone meal pyrolysis in a rotary kiln

    Publication
    • P. Ziółkowski
    • M. Kantorek

    - Year 2012

    The paper presents aspects of modelling the pyrolysis of meat and bone meal (MBM) in a rotary kiln. The pyrolysis of MBM produces a solid fraction which can be used as a fuel, a liquid fraction with potential chemical applications and a low heating value gas. The meat and bone meal pyrolysis was carried out at the temperature of 900 oC. Main features of experiments and numerical model of the pyrolysis were described. The model...