disposing their waste into these centralised fermenters. the composition of biogas is mainly methane, carbon dioxide and tiny amounts of hydrogen sulphide. the biogas composition is about % methane and % carbon dioxide (co ). the process of upgrading is done by separating the co and purifying the methane...
broccoli has its origins in primitive cultivars grown in the roman empire . [ ] it is eaten raw or cooked. broccoli is a particularly rich source of vitamin c and vitamin k . contents of its characteristic sulfur -containing glucosinolate compounds, isothiocyanates and sulforaphane , are diminished by...