Preparation and Characterization of Biochars from Plant and Animal Waste Under Different Pyrolysis Temperature

Abstract

Biochar is widely used for environmental and agricultural purposes due to its positive effect on soil fertility, immobilization of pollutants and sequestration of carbon. This research produced biochar from plant waste (palm fronds PFB) and animal waste (sheep manure SMB) at different pyrolysis temperatures (300 and 700 °C) and compared their physicochemical properties. The results showed the biochars produced at a low temperature (300 °C) had higher yield. However, the increasing pyrolysis temperature led to increased surface area, pore volume, EC, pH, ash content, carbon content, and negative zeta protentional. Sheep manure biochar (SMB) was higher elements (phosphorus, potassium, calcium). Therefore, it can be suggested to use sheep manure biochar as organic fertilizer for soil treatment rather than used for the removal of contaminants as preferred for palm fronds biochar produced at higher pyrolysis temperatures depending on their properties.