The target for removal

We should consider four parts, A, B, C, D, when a cleaning system work.

A.
Particle size
Particle characteristic：ion, metal, and non-metal particle

B.
Surface condition：hydrophilic and hydrophobic
Steric effect(roughness)

C.
Water：hydration effect, Zeta potential, pH value effect, coordinate chemistry…
Plasma
Inert gas

D.
Force or Energy source