Municipal solid waste final disposal represent an environmental burden worldwide since landfilling, or open dumping, is still the preferred solution for solid discarded materials end of life. This study aims to review the technological innovations applied for landfill leachate treatment, taking into consideration the experiences obtained during the past years and the solutions which have been implemented. The review showed that both biological and physiochemical treatments are not able to achieve the requested water quality level, according to the limits established by regulations, whether applied in single treatment. In order to respect sustainable release limits to guarantee environmental protections, the construction of depuration systems, combining biological and physiochemical treatment methods, is considered of utmost importance. The review looks at possible joint applications of different treatment techniques reviewed by other studies and considers the state of the art on current researches. Combined technical solutions suggested within 2016 per-reviewed papers are presented and discussed as a sustainable way to treat effectively landfill leachate giving particular attention on feasible solutions for developing countries.
Novel and conventional technologies for landfill leachates treatment: a review
TORRETTA, VINCENZO;FERRONATO, NAVARRO;
2017-01-01
Abstract
Municipal solid waste final disposal represent an environmental burden worldwide since landfilling, or open dumping, is still the preferred solution for solid discarded materials end of life. This study aims to review the technological innovations applied for landfill leachate treatment, taking into consideration the experiences obtained during the past years and the solutions which have been implemented. The review showed that both biological and physiochemical treatments are not able to achieve the requested water quality level, according to the limits established by regulations, whether applied in single treatment. In order to respect sustainable release limits to guarantee environmental protections, the construction of depuration systems, combining biological and physiochemical treatment methods, is considered of utmost importance. The review looks at possible joint applications of different treatment techniques reviewed by other studies and considers the state of the art on current researches. Combined technical solutions suggested within 2016 per-reviewed papers are presented and discussed as a sustainable way to treat effectively landfill leachate giving particular attention on feasible solutions for developing countries.
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