Biogas as a result of a fermentation process ( .... will produce the composition of methane ( CH4) is greater than 60% , CO2 and H2S little. Biogas Digester BD 7000L has the strength to withstand....
Recognizing that in the future chemical fertilizer ( anorganic) as non- renewable natural materials ( unrenewable) to the less availability, and, on the other hand, there is the health awareness of....