Chapter 3 - Adsorption: A cost-effective treatment process for chemical contaminants

3.2 How adsorption works

Figure 3.3 helps to understand how a chemical pollutant molecule migrates from being dissolved in solution to being adsorbed in a pore deep within a granule of biochar. This process is called mass transfer, as in the transfer of mass of pollutant from the liquid state in bulk solution to the solid state adsorbed on the biochar surface. We divide mass tr…