What is Removed from Water During the Tertiary Wastewater Treatment Nutrient Removal?
Wastewater treatment includes three main stages: Primary Treatment, Secondary Treatment, and Tertiary Treatment. After the primary and secondary wastewater treatment processes, the wastewater still has residual suspended matter and fine particulates making the tertiary treatment process important for wastewater nutrient removal.
The first step in the tertiary treatment process is filtration. This helps to remove the residual suspended matter remaining and assist in wastewater nutrient removal. However, after filtration, there may still be some fine particulate matter present in the wastewater, so it is transferred to lagoons for further wastewater nutrient removal.
With potentially dangerous levels of nutrients like Nitrogen and phosphorus, the lagoon’s aerobic and biologically enriched environment is a crucial step. The microbes present in these lagoons will remove the remaining particulate matter that can pose a threat to the environment.
The final step in the tertiary treatment of wastewater is removing undesirable microbes by disinfection and removing odors from wastewater itself. Once the wastewater completes the tertiary treatment and wastewater nutrient removal process, it is subjected to a series of tests. If the wastewater passes all of the necessary tests, it can be released into the environment for re-use.
This tertiary treatment process is used to improve the quality of sewage that resulted from the primary and secondary treatments. It removes all of the remaining inorganic compounds, including nitrogen and phosphorus, bacteria, viruses, and parasites. It is during the final tertiary treatment cleaning stage that the wastewater quality level is high enough to be reused, recycled, and discharged into the environment.
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