Biological treatment applications
There are many applications of biological treatment in wastewater treatment. As a reminder, it is used to destroy organic compounds present in water. So, it is an important step after the mechanical filtration of water through drum filters. It will thus prevent contamination by pathogens at the entrance of a fish farm.
Moreover, the type of biological treatment adopted for the treatment depends on several parameters:
- aerobic treatment
- anaerobic treatment
Different forms of additional treatment for biological water treatment
The biological treatment can be accompanied by additional treatments such as:
- Chlorination: It adds chlorine to the water to eliminate parasites, bacteria, and viruses.
- UV treatment: It is a powerful method for disinfecting water. It is useful for:
- Domestic water
- municipal and industrial wastewater
Moreover, UV (Ultraviolet) technology is experiencing rapid growth as it represents a safe and cost-effective alternative to chemical disinfection.
As for biological treatment, it can operate in three distinct environments. :
- Aerobic: Microorganisms use oxygen to convert organic matter into carbon dioxide and biomass.
- Anaerobic: In this oxygen-free environment, specific bacteria break down organic matter.
- Anoxic: Microorganisms use compounds such as nitrates or sulfates instead of oxygen to grow.
And among the applications of biological treatment, we can mention :
- Nitrification/denitrification
- Biological treatment in aquaculture.
- Municipal and industrial wastewater treatment
- Wastewater reuse (REUSE)
