In this book, the authors gather and present current research in the study of the technological systems, management practices and environmental impact of recycling. Topics discussed in this compilation include road pavement recycling technologies; polymer-base waste materials for recycling; cheese whey recovery technologies; environmental indicators for the plastic recycling industry; glass fibre replacement with banana tree fibre in high density polyethylene composites; recycling of different spent earth from filtration in the production of ceramic materials; recycling and reusing fibre-reinforced composites; recycling of regenerated wastewater using water cascade analysis in pulp and paper mills; disaster waste generated after the Great East Japan Earthquake; the social and environmental responsibilities of recycling; thermal degradation of polymers during their mechanical recycling; and recycling of petroleum oily sludge to produce sustainable clay ceramics.