Definitions for "Pretreatment"
Various treatments applied to seed prior to sowing in order to increase the rapidity or completeness of germination ( BCFT).
Conditioning of effluent prior to dispersal by drip system.
preliminary treatment of wastewater to remove easily separated contaminants, typically by screening and settling.
Chemical alteration of a surface to make it suitable for application of paint or powder.
Keywords:  acid, conditioning, see
See Acid Conditioning.