Ahlstrom DD-Washer

Energy Abatement and Modernization for Washing Process

Abstract

Ahlstrom has developed Drum Displacer Washer^TM (DD washer), which is a new generation washer having up to 4-washg stages in one unit. Low Consistency Drum Displacer^TM (LCDD) and Meddium Consistency Drum Displacer^TM (MCDD) have shown excellent washing performance in brownstock wash, post-oxygen wash and bleach systems.