Table 1 Comparison for the removal of arsenic by different technologies
From: Specifically designed magnetic biochar from waste wood for arsenic removal
Method | Operation | Cost | As removal efficiency |
|---|---|---|---|
Ion exchange | Complex | Expensive | Good |
Coagulation precipitation | Complex | Expensive | Average |
Membrane separation | Complex | Expensive | Good |
Biological treatment | Complex | Average | Average |
Oxidation | Complex | Expensive | Average |
Activated carbon adsorption | Easy | Average | Average |
Biochar adsorption | Easy | Cheap | Good |