2018/6/2/ · where B R – organic load, kg/m 3 /d; m – the required amount of the substrate per day, kg/d; c – the concentration of organic matter, %; V R – bioreactor volume, m 3.. The optimal load of cow manure is approximately 4.5–6 kgSOM/m 3, that of pig manure is 3–4 kgSOM/m 3 per day and that of poultry manure is 1.5–2.5 kgSOM/m 3
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