The work of treating spills and sewers witn cardiovascular organisams to remove polluting substances. This ultimately results in a harmless ingredient.
healing sewage, spills, or waste, with air centered microorganisms that break down (biodegrade) the polluting compound into benign substances with time.
an activity wherein microbes decompose complex organic compounds in the existence of oxygen and employ the liberated energy for reproduction and development. These types of processes include prolonged aeration, trickling filtration, and turning biological contactors.