installed 4 44 million small scale biogas plants
installed 4 44 million small scale biogas plants: ... at least million s kept livestock, suf wira, 2009). Most rural biogas plants have no moving parts to mix the feedstock and water, so this is usually done by hand; this can take up to 30 min each day, time Floating layer formation, ing, and microbial .Effective mixing in fullscale biogas plants is crucial to avoid .