What are they used for?
Biological wastewater treatment is the most common method of sanitation in the world. This technology uses different types of bacteria and other micro-organisms for the treatment and cleaning of polluted water.
Wastewater treatment is as essential to human health as it is to environmental protection. Indeed, the use of these bacteria accelerates the treatment of pollution on a small surface: the purification plant. And the river has its own purification process, exactly the same as occurs in the environment. However, atmospheric pollution levels are currently too high and can disrupt the natural cycle. Thus, sewage treatment plants can prevent eutrophication of rivers, for example, but also prevent the diffusion of diseases.
Municipal and industrial effluent is the main source of wastewater. Microorganisms are used to break down organic waste. These micro-organisms use the wastes as a source of food and energy to develop and reproduce.
You got it, bacteria are the heart of the process. And finally, a wastewater treatment plant represents a small farm where micro-organisms are cultivated on a large scale.