Potential Of Floriculture Residue For Biogas Production

Production of methane reach biogas through anaerobic digestion of organicrnmaterial provides versatile carrier of renewable energy, as methane can bernused in replacement for fossil fuels. Thus contributing to cutting down thernemission of green house gasses and slowing down the climate change.rnThis calls for widening the scope of the technology by tapping organicrnmaterial like plant waste, industrial waste, and floriculture residues.rnFloriculture farms produce huge amount of residues and this can be usedrnas feedstock for biogas production. In this study floriculture residue wererncharacterized for their physical properties such as total solid, volatile solid,rnheavy metal concentration and the biogas potential was assessed in sixrndifferent treatments with a cow dung The heavy metal concentration inrnthe floriculture residue is below the standard for biogas and it can be usedrnas a feedstock for biogas production. On the batch experiments of eightrnweek digestion, the combination of floriculture residue and cow dung in thernratio 2:1 produced the maximum biogas of 14,127±155 ml in 52 days,rnfollowed by floriculture residue and cow dung in the ratio 1:1 11,776 ±164rnml in 51 days, the combination floriculture residue and cow dung in thernratio 3:1 as 8,461 ± 129ml 53 days, and the least with cow dung as 4,428rn± 57 ml in 43 days. The floriculture residue (flower only) produced the leastrnamount of biogas 345 ± 8.36 ml for 19 days.rnKey words: Anaerobic digestion, biogas, floriculture residues, physicalrnProperties, heavy metal concentration

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