Activated sludge
Airflow
Environmental science
Pollutant
Degradation (telecommunications)
Environmental engineering
Mass transfer
Sensitivity (control systems)
Wastewater
Sewage treatment
Activated sludge model
Mass transfer coefficient
Biochemical oxygen demand
Residence time (fluid dynamics)
Bioreactor
Chemical oxygen demand
Process engineering
Chemistry
Computer science
Engineering
Chromatography
Mechanical engineering
Telecommunications
Organic chemistry
Electronic engineering
Geotechnical engineering
