The Study of Rice Husk as Co-Digestion Together with Cow Dung is Biogas Production of Anaerobic Digester

Sania Septiani Mulyawan,Elisabeth Rianawati,Marisa Handjani,Pornkamol Unrean,Tri Padmi,Bridgid Chin Lai Fui,Enri Damanhuri,Menandro Acda,Dini Widyani Aghnia,Hadiyanto Hadiyanto,Maryono Maryono,Budi Warsito

doi:10.1051/e3sconf/20187301013

Abstract

One of alternative waste-to-energy technologies to treat organic waste is anaerobic digestion. This study conducted by three stage of experiments using the laboratory scale biogas production from cow dung and rice husk as co-digestion. Based on the first stage experiments, TS 10% gave the highest accumulation of biogas 458 ml and 506,95 ml. In the second stage of the experiments, 10 ml media in TS 20% gave the highest accumulation of biogas production (743.1 ml). The last stage of experiments showe d that Blank TS 30% with 5 ml media gave the highest accumulation of biogas production (922.2 ml). From the last stage we can conclude that the presented of rice husk as a co-digestion didn’t give the significant effect to increase biogas production in anaerobic digestion, at least at room temperature. This caused by the high lignin and cellulose concentration in the rice husk that might resist or inhibit the production of biogas production. This is contrast situation when TS 40% occured, the existing of rice husk in AD will give positive impact to biogas produce.

Highlights

Anaerobic digestion performance is heavily influence by the characteristic of organic material such as food waste, manure, sewage sludge, organic fraction of municipal solid waste, and energy corps, and others [1]
This study conducted by three stage of experiments using the laboratory scale biogas production from cow dung and rice husk as co-digestion
From the last stage we can conclude that the presented of rice husk as a co-digestion didn’t give the significant effect to increase biogas production in anaerobic digestion, at least at room temperature. This caused by the high lignin and cellulose concentration in the rice husk that might resist or inhibit the production of biogas production

Summary

Introduction

Anaerobic digestion performance is heavily influence by the characteristic of organic material such as food waste, manure, sewage sludge, organic fraction of municipal solid waste, and energy corps, and others [1]. Anaerobic digestion could be an alternative option to treat the cow dung and reducing the cost of disposal and produce biogas for energy recovery. Methane and carbon dioxide which is mainly contained in biogas production, can be used as renewable energy sources [3]. Other type of organic waste that is abundant in rural area is agricultural waste, such as properly such as rice husk, rice residues and rice straw from the drying process. As a matter of fact, these wastes have high carbon content which can be used as for biogas production through anaerobic digestion process. As the rice residues are to optimize anaerobic digestion performance and obtaining energy by considering digestion of rice residues are difficult to degrade, the parameters of the anaerobic digestion should be set properly [4]

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Methods

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Discussion

Conclusion