Abstract: The present invention relates generally to stable percarboxylic acid compositions comprising, inter alia, at least two stabilizing agents, and various uses for water treatments, including water treatments in connection with oil- and gas-field operations. The present invention also relates to slick water compositions and gel based compositions that comprise stable percarboxylic acid compositions and the use thereof in oil- and gas-field operations.

Abstract: A hand-held buffing device having a body with at least two portions, a handle portion and a head portion is provided. The handle portion is preferably ergonomically shaped and/or oriented for convenient, comfortable handling and may preferably have a control interface for allowing an operator to control the operation of buffing device. The head portion may preferably accommodate at least a portion of a drive assembly and operatively connect with one or more buffing pads or disks that are driven by the drive assembly to move in relatively rapid, reciprocating movements in short strokes in simultaneously different directions for hair removal, massaging and exfoliating with efficiency. The buffing device enables relatively lightweight motors and components to be used.