PRODUKSI BIOGAS DARI ECENG GONDOK (EICCHORNIA CRASSIPES) : KAJIAN KONSISTENSI DAN pH TERHADAP BIOGAS DIHASILKAN

Arnold Yonathan, Avianda Rusba Prasetya, Bambang Pramudono

Abstract


Water hyacinth (Eicchornia crassipes) is one of the weeds type which has the fastest growth among
others, but it can be used in the biogas production because it contains large number of
hemiselulosa. Anaerobic digestion is a process where the microorganism is doing a biodegradable
material split within the oxygen devoid. The biogas making process begins at cutting up the water
hyacinth, to be added with the water and to be blended with cow dung later. When the mixed
solution is already well-suited with the operation variable, pour it into the pre-treatment
biodigester by adding the H2SO4 into the (substrat). The process will present the result at
composition variable, which is showing the largest biogas production at 2:2,5 composition in
1.162,97mL, and the smallest biogas production at 2:1 composition in 12,85mL. The best
composition from the fermentation process has done before is used as the dependent variable with
a pH variable change. The result shows at the pH interval 4 -7, the biogas production is
increasing, and will decrease at the pH 8. The largest biogas production is at the variable pH 7 in
the amount of 1.162,97mL. The GC analysis result shows the metana that contains inside the
biogas is 0,03mol/100gr water hyacinth.

Keywords


biogas; Anaerobic digestion; water hyacinth.

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