Mathematical Modelling and Statistical Approach to Assess the Performance of Anaerobic Fixed Bed Reactor for Biogas Production from Piyungan Sanitary Landfill Leachate

Sanitary landfill method to treat solid waste offered cheaper operational cost but created environmental problems, one of which was leachate accumulation. Treatment of leachate to meet the environmental standard for disposal to the water bodies was mandatory by regulation. One way to treat leachate is using anaerobic bioreactor to digest the leachate and to produce biogas besides cleaner water to be disposed. To achieve stability in the bioreactor performance, zeolite was as microbial immobilization media. Zeolite was proven to be useful in stabilizing the growth of the microorganism and reducing the inhibitors in the leachate. The growth behavior of the microorganism before and after the zeolite addition was identified through the mathematical modelling and the statistical approach. (C) 2017 The Authors. Published by Elsevier Ltd.