Sewage Sludge Disposal – Land Application -environmental Problems – an OverviewMost wastewater treatment processes produce a sludge which has to be disposed of. Conventional secondary sewage treatment plants typically generate a primary sludge in the primary sedimentation stage of treatment and a secondary, biological, sludge in final sedimentation after the biological process. The characteristics of the secondary sludge vary with the type of biological process and, often, it is mixed with primary sludge before treatment and disposal. Approximately one half of the costs of
What Is The Problem With Northern Virginia And Washington D.C. Water?Northern Virginia is growing in population rapidly and as more people move into the area, a question that is asked more and more frequently is - what is the quality of my drinking water?Individuals and families are naturally concerned with their health and drinking water is an important element of...
