A Mass Balanced Approach to Process Control of a High Density Sludge ProcessThe high density sludge (HDS) process was developed for neutralization and precipitation of heavy metals found in iron-bearing acid mine drainage, as well as in diluted waste pickle liquor from steel finishing operations. The HDS process removes dissolved heavy metals in wastewater through chemical precipitation. This process uses an aqueous alkaline neutralizing agent that is introduced with a...Author(s)Tom SandyGuy GoettschRock RaifordMara HollinbeckSourceProceedings of the Water Environment FederationSubjectSession 7 – Physical/Chemical TreatmentDocument typeConference PaperPublisherWater Environment FederationPrint publication date Jan, 2002ISSN1938-6478SICI1938-6478(20020101)2002:7L.392;1-DOI10.2175/193864702785073064Volume / Issue2002 / 7Content sourceIndustrial Wastes (IW) ConferenceFirst / last page(s)392 - 412Copyright2002Word count479