Simultaneous valorization of polyvinyl chloride and eggshell wastes by a semi-industrial mechanochemical approach

A semi-industrial approach for simultaneous treatment of eggshell and industrial polyvinyl chloride waste utilizing tools of ball milling is reported therein. On a hundred-gram scale, it is possible to transfer more than 55% of chlorine present in the polyvinyl chloride representing an environmental...

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Published inEnvironmental research Vol. 170; pp. 332 - 336
Main Authors Baláž, Matej, Bujňáková, Zdenka, Achimovičová, Marcela, Tešinský, Matej, Baláž, Peter
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier Inc 01.03.2019
Subjects
Animals
Chlorine
Egg Shell
Eggshell
Halogenation
Kinetics
Mechanochemistry
Polyvinyl Chloride
PVC
Waste Products
Waste valorization
Eggshell
Waste valorization
PVC
Mechanochemistry
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Summary:A semi-industrial approach for simultaneous treatment of eggshell and industrial polyvinyl chloride waste utilizing tools of ball milling is reported therein. On a hundred-gram scale, it is possible to transfer more than 55% of chlorine present in the polyvinyl chloride representing an environmental burden, into harmless soluble form. On a laboratory scale, a complete dechlorination was achieved. The ratio of eggshell-to-polyvinyl chloride plays a significant role for the effective dechlorination and the kinetics of semi-industrial process follows zero-order kinetics with the rate constant 1.23 × 10−5 s−1. Chlorine is mainly in the form of calcium chloride. This study is an example of efficient simultaneous valorization of two waste materials on a semi-industrial scale, as the products can be utilized again. [Display omitted]
Bibliography:ObjectType-Article-1
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ISSN:0013-9351
1096-0953
DOI:10.1016/j.envres.2018.12.005