Leachate Treatment from Sarimukti Landfill Using Ozone with Sludge from Water Treatment Plant as a CatalystMuhammad Yudha Ramdhani, M. Rangga Sururi and Siti AinunMATEC Web Conf., 147 (2018) 04006DOI: https://doi.org/10.1051/matecconf/201814704006