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ABSTRACT
This study takes a look at the metal composition of some agricultural waste such as cassava peel, yam peel, plantain stem and Irish potato peel as potentials for black soap production. To study this, the agricultural waste was washed, dried, burnt and the metal composition from the leached ash was analyzed using an atomic absorption spectrophotometer and a flame photometer. The concentration of elements present were potassium 183.80mg/L, Magnesium 2.50mg/L, Calcium 59.80mg/L and sodium 3.40mg/L for cassava peel ash, that of plantain stem ash had Potassium 198.20mg/L , Magnesium 2.50mg/L , Calcium 58.80mg/L and Sodium 2.50mg/L, that of Irish potato peel ash Potassium 185.30mg/L, Magnesium 2.40mg/L, Calcium 4.70mg/L, and Sodium 2.9mg/L, while that of yam peel ash were Potassium 174.50mg/L, Magnesium 2.40mg/L, Calcium 9.50mg/L, Sodium 2.30mg/L. This result shows that some waste can be used for several beneficial purposes thereby reducing the harm and pollution they caused to the environment.
