Pengaruh macam limbah organik dan pengenceran terhadap produksi biogas dari bahan biomassa limbah peternakan ayam

Abstract

Luthfianto D, Mahajoeno E, Sunarto. 2012. The impact of various organic waste and dilution to the biogas production of biomass waste of poultry farms. Bioteknologi 9: 18-25. The scarcity of fuel currently becomes a popular issue, so that it takes many alternative problem solving. Through biodigester anaerobe system, the chicken’s feces by the addition of organic waste can result biogas, a renewable energy. The objectives of the research are (1) Examining biogas production resulted from biodigester anaerobe process of chicken’s feces. It was executed by dilution treatment and the addition of organic waste substrate on a laboratory scale (2) Identifying biogas production resulted from biodigester anaerobe of chicken’s feces bulk system on a semi pilot scale with different agitation frequency. The research was done using two scales: a laboratory scale and a semi pilot scale. Experimental design used in this research was complete random design. It consists of two factors, they are dilution ratio, and the addition of substrate. The best result of biogas production was recommended to be used on a semi pilot scale research. The digester of bulk system was used in the experiment to identify the number of biogas production. Steering in the treatment on the semi pilot scale was at intervals of 4 hours/day and 8 hours/day. The parameter of observation included COD, TSS, VS, pH, and gas production. The data were analyzed using one way ANOVA and 5% DMRT test. Based on the research on a laboratory research scale, the highest biogas production resulted from a compound of chicken’s feces and water hyacinth by the dilution of 1:1 was 0,60 L. The highest efficient change COD, TSS, VS by the dilution of 1:1 was 68,99% (straw), 32,05% (stray), 75, 14% (water hyacinth). On the semi pilot scale, the frequencies of steering were difference: 4 hours/day and 8 hours/day. And the highest biogas production of 8 hours/day steering for 6 weeks was 624,99 L.