Waste-to-energy: Dehalogenation of plastic-containing wastes

Waste Management
Yafei ShenMindong Chen

Abstract

The dehalogenation measurements could be carried out with the decomposition of plastic wastes simultaneously or successively. This paper reviewed the progresses in dehalogenation followed by thermochemical conversion of plastic-containing wastes for clean energy production. The pre-treatment method of MCT or HTT can eliminate the halogen in plastic wastes. The additives such as alkali-based metal oxides (e.g., CaO, NaOH), iron powders and minerals (e.g., quartz) can work as reaction mediums and accelerators with the objective of enhancing the mechanochemical reaction. The dehalogenation of waste plastics could be achieved by co-grinding with sustainable additives such as bio-wastes (e.g., rice husk), recyclable minerals (e.g., red mud) via MCT for solid fuels production. Interestingly, the solid fuel properties (e.g., particle size) could be significantly improved by HTT in addition with lignocellulosic biomass. Furthermore, the halogenated compounds in downstream thermal process could be eliminated by using catalysts and adsorbents. Most dehalogenation of plastic wastes primarily focuses on the transformation of organic halogen into inorganic halogen in terms of halogen hydrides or salts. The integrated process of MCT or HTT w...Continue Reading

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Citations

Feb 24, 2019·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Hongmei ZhuJianhua Yan
Jul 9, 2020·Environmental Science and Pollution Research International·Maria Anna CharitopoulouDimitriοs S Achilias
Sep 13, 2018·Reviews on Environmental Health·Muhammad IlyasShah Nazir
Mar 9, 2018·Journal of Environmental Management·Yafei ShenMindong Chen
Jul 21, 2021·Environmental Science and Pollution Research International·Jinbao HuangBaosheng Lai

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