Simultaneous nitrification-denitrification
Activated sludge
Nitrification
Aeration
Denitrification
Nonlinear system
Process (computing)
Control theory (sociology)
Nitrogen
Activated sludge model
Phase (matter)
Nitrogen cycle
Environmental engineering
Environmental science
Process engineering
Engineering
Computer science
Control (management)
Chemistry
Waste management
Sewage treatment
Physics
Organic chemistry
Quantum mechanics
Artificial intelligence
Operating system
