Sewage Treatment

Sewage treatment is the process that removes the majority of the contaminants from waste-water or sewage and produces both a liquid effluent suitable for disposal to the natural environment and a sludge. To be effective, sewage must be conveyed to a treatment plant by appropriate pipes and infrastructure and the process itself must be subject to regulation and controls. Other wastewaters require often different and sometimes specialized treatment methods. Nuisance algae in lakes and rivers, chlorine and ammonia that are toxic to fish, growing populations and high operating costs - these are challenges facing many municipalities with sewage treatment plants.