Biogas Production from Dining Hall Waste and Landfill Leachate in a Two Stage R&D Facility

Year 2018, Volume: 1 Issue: 1, 1 - 5, 31.05.2018

Kadri Süleyman Yiğit

https://doi.org/10.34088/kojose.397512

Cited By: 1

Abstract

Taking into consideration recovery dining hall waste from university cafeteria and nutrient reduction of landfill leachate, they were mixed at a temperature of 36±1°C and for a period of 90 days in a two stage biogas production R&D facility with a total volume of 5m3, and then experiments were done. Experiment-I was performed to engage the second digester as a priority, and Experiment-II was performed to engage the first digester. After the required bacteria formation was ensured, the first digester was daily fed with mixture of dining hall waste with 10% solid matter content and landfill leachate weighing 167 kg in total regularly feeding in Experiment-III. Analyses and measurements of total solids (TS), total volatile solids (TVS), C% and N% percentages, pH, volatile fatty acid (VFA) and inhibitive of the organic waste samples were measured from the feedstock, digesters, and fertilizer tanks. In addition, daily biogas samples were taken and concentrations of CH4(%) with mass flow rate of the biogas were measured. The results showed that in case dining hall waste and landfill leachate was mixed, the first digester worked at pH values of around 4.5–5.5 and performed the task of hydrolysis and acidification. The second digester performed the task of bio-methanation successfully.

Keywords

Anaerobic process, Two stage biogas, Dining hall waste, Landfill leachate

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