Self-adaptive method for regulating an effluent treating plant, in particular for waste water

The invention concerns a method for regulating a wastewater or sludge treating plant. Ponds and cells provided with aerating means are used for eliminating carbonaceous, nitrogenous, and phosphate pollutants. The invention is characterized in that an automaton uses periods during which the plant is underloaded to impose on it abnormal operating conditions. The automaton analyses the response of the plant to the abnormal operating conditions to simulate and optimize the plant operating parameters for heavy-load periods, by automatically adjusting the parameters of the automaton logic.