Abstract

The rice chaff with co-digestion of cow dung for biogas production at laboratory scale was the subject of this investigation. The study was carried out at mesophilic condition between (26-30o C) for a period of 60 days with seven percent total solid concentration was taken for the fermentation slurry. Experiment study was conducted for three different proportion case (i) 50% weight of boiled rice chaff plus 50% weight of cow dung (ii) 75% weight of rice chaff (boiled) plus 25% weight of cow dung (iii) 50% weight of raw rice chaff (without boiled) plus 50% of cow dung. The result showed a cumulative biogas production of 161.5ml in case (i) for the retention time of 60 days. In case (ii) showed the biogas production of 140.5 ml for the retention time of 70 days and in case (iii) there was no significant gas production due to high percent of lignin in raw rice chaff. Keywords: Biogas, Co-digestion, fermentation, agriculture waste and rice chaff.

Highlights

  • 125kg of rice chaff result from every one hectare of crop connecting tube, the produced gas passed through brine cultivation

  • This work was carried out to explore the solution, was collected by water displacement method to potential of biogas production from rice chaff as co- avoid the dissolution of biogas in water, which was digestion with cow dung

  • There is a drop in gas production after the 36th day, followed by dome production on the 38th day of 26.5ml, after which no appreciable production of biogas occurred

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Summary

Introduction

Rice chaff is an agricultural waste which remains brewery sludge, among many others, have resulted in after the processing of the rice crop, like rice straw and improved methane yield by as much as 60% compared rice husk. A set of 3 fixed dome plastic bio-digester with a added benefit of solving major environmental problems capacity of 1 L was used and the digestion of different posed by the waste used as substrates is well proportion for rice chaff with cow dung, was undertaken established. 125kg of rice chaff result from every one hectare of crop connecting tube, the produced gas passed through brine cultivation.

Results
Conclusion
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