Wastewater Treatment and Water Purification

Microorganisms from sewage can cause human disease, but can also negatively affect important ecosystems on which humans rely.

Wastewater is treated in 3 phases: primary (solid removal), secondary (bacterial decomposition), and tertiary (extra filtration).

Water is purified with filters to remove larger protozoans, and by chemical or UV disinfection to kill bacteria and other small pathogens.