Nonlinear PI Control with Adaptive Interaction Algorithm for Multivariable Wastewater Treatment Process

Table 2

Influent data.

Variables	Descriptions
	Soluble inert organic matter
	Suspended solids
	Dissolve oxygen
	Nitrate
	Ammonium and ammonia nitrogen
	Soluble biodegradable organic nitrogen
	Alkalinity
	Particulate inert organic matter
	Slowly biodegradable substrate
	Active heterotrophic biomass
	Active autotrophic biomass
	Particulate products arising from biomass decay
	Particulate biodegradable organic nitrogen
	Input flow rate