Dec 01 2014 Burning of briquettes made from a mixture of the crushed carbonized maize stover with cassava solution 2 as the binder at no specific mixing ratio Fig. 5A. The briquettes burn producing no or little smoke and also for a long time. Burning of briquettes made from a mixture of 97 of char dust with 3 of red soil Fig. 5B. The briquettes emit some smoke on burning but burns for a long time.