 A full-scale landfill leachate treatment system was monitored and evaluated for the removal of major pollutants, energy consumption, and greenhouse gas emissions. The system included primary sedimentation, biological treatment and sequencing batch reactors, reverse osmosis, and mechanical vapor recompression of operation. Samples were taken over two years from different points of the system while power consumption was calculated based on available equipment and hours of operation. Greenhouse gas emissions were estimated using appropriate equations and operational characteristics of the system. Biological treatment resulted in significant removal of BOD5 and NH4N while reverse osmosis increased the removal of all pollutants. Power consumption was 35.3 kilowatt-hour per m3 of treated leachate with mechanical vapor recompression of operation accounting for 60.5 percent of total energy required. The roots blower vacuum pump and blowers providing air to sequencing batch reactors were the most energy-intensive pieces of apparatus. Greenhouse gas emissions were estimated at 27.7 kGCO2 eq per m3 of treated leachates with biological treatment and mechanical vapor recompression of operation contributing to 45.7 percent and 44.1 percent of total emissions respectively. The study reveals that an integrated landfill leachate treatment system can produce high-quality effluent while protecting the aquatic environment, but further research is needed on sustainable management of reverse osmosis concentrate. Mechanical vapor recompression of operation significantly contributes to the environmental footprint due to high energy consumption and elevated greenhouse gas emissions. This article was authored by Konstantinos Tsampinoglo, Olga P. Kautsu, and Athanasius S. Stassinakis. We are article.tv, links in the description below.