PENGARUH PENGGUNAAN LIMBAH CAIR TEPUNG TAPIOKA DAN FESES SAPI PERAH SEBAGAI SUBSTRAT BIOGAS TERHADAP PRODUKSI METAN DAN KECERNAAN BAHAN ORGANIK

Abstract

The research aimed was to determine the effect of co-subtrat tapioca waste water and dairy feces on methane production andvolatile solid (VS) reduction. The results showed that there was a positive effect of treatment (FC) compared to control (dairy feces was diluted with water/FA). Methane production of FC (301.53 ml/gVS/day)washigher (p<0.05) than the FA (184.88 ml/gVS/day). However, co-substrate of tapioca waste water and dairy feces gave no effect (p>0.05) on the volatile solid reduction ofFC (23.06%)andFA (33.33%).It can be concluded that tapioca waste water can be used to increase (p< 0.05) methane production of the biogas from digester treating dairy feces, however there was no effect on the volatile solid reduction.