Wastewater treatment is the process of removing contaminants and creating an effluent that
can be returned to the water cycle with minimal impacts. Municipal wastewater treatment includes
streams from household sewage and sometimes industrial wastewater. Physical, chemical, and
biological processes can be used to remove contaminants, including excessive nutrients, to produce
an effluent that is safe enough to be released to the environment.
Excessive nutrients (e.g. phosphorus, nitrogen) in the ...