| Summary: | Sewage. Not your most popular topic, but certainly an important one; especially since it's created every day, not just by individuals in homes and apartments, but also by institutions, hospitals and commercial and industrial establishments. Fortunately, sewage treatment, or domestic waste water treatment, is a modern-age triumph of technology, and people can take heart that a marriage between nature and modern sewage treatment technology has taken place. In this informative program we learn of the stages involved in sewage treatment, as well as the physical, chemical and biological processes required for removing contaminants from waste water.
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