Njengoba amamajini emikhiqizweni ye-ethanol aqina noma anyamalale, abakhiqizi abaningi be-ethanol bakhetha ukugxila ekudalweni kwenani kusuka kumakhemikhali. Izinhlamvu ezomisiwe ze-distillers ezinama-solubles (DDGS) sekuyisikhathi eside bengabalulekile

I-Bauxite yidwala le-sedimentary elicebile nge-alumina, isisekelo sokwenza i-aluminium. It is generally easy to mine because it is found near the surface of the