04/12/2022
What is a biological wastewater treatment system?
In a simplified, top-level answer to this question, a biological wastewater treatment system is a technology that primarily uses bacteria, some protozoa, and possibly other specialty microbes to clean water. When these microorganisms break down organic pollutants for food, they stick together, which creates a flocculation effect allowing the organic matter to settle out of the solution. This produces an easier-to-manage sludge, which is then dewatered and disposed of as solid waste.
Typically broken out into three main categories, biological wastewater treatment can be:
1. aerobic, when microorganisms require oxygen to break down organic matter to carbon dioxide and microbial biomass
2. anaerobic, when microorganisms do not require oxygen to break down organic matter, often forming methane, carbon dioxide, and excess biomass
3. anoxic, when microorganisms use other molecules than oxygen for growth, such as for the removal of sulfate, nitrate, nitrite, selenate, and selenite
For More details
https://sritejatechnologies.co.in
