Cost estimation of COD and color removal from landfill leachate using combined coffee-waste based activated carbon with advanced oxidation processes

Advanced oxidation processes (AOPs) effectively treat landfill leachate, but high energy demands and capital costs mean that further research is needed to improve AOP viability. In the present study, two AOPs (ultrasound + O3 and solar/O3; with and without H2O2) were compared in terms of landfill leachate depuration, specific energy consumption, and associated reagent and operational costs. Solar/O3/H2O2 attained 59.7% color elimination and...