Chapter 4 - Summary of research on biochar adsorption of chemical pollutants

4.1.4 Feedstock and process modifications for pseudo-activation

Wet-quenching gasifier drum oven biochar at workshops, Weligepola Women’s Federation (left) and Rajanganaya (right), Sri Lanka, April 2016.

The manufacture of activated carbon (AC) is often accomplished by a two-step process. In the first step, the feedstock (e.g., wood, coconut shells, bituminous coal) is carbonized by heating in an anaerobic environmen…