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METHOD AND SYSTEM FOR QUANTIFYING GREENHOUSE GASES EMISSIONS PRODUCED IN A WASTEWATER TREATMENT PLANT AND METHOD OF MULTIVARIABLE CONTROL FOR OPTIMIZING THE OPERATION OF SUCH PLANTS
METHOD AND SYSTEM FOR QUANTIFYING GREENHOUSE GASES EMISSIONS PRODUCED IN A WASTEWATER TREATMENT PLANT AND METHOD OF MULTIVARIABLE CONTROL FOR OPTIMIZING THE OPERATION OF SUCH PLANTS
Method and system for quantifying greenhouse gases emissions produced by a reactor (100) in a WWTP, comprising: obtaining 2D images from three thermographic cameras, said 2D images corresponding to views of the plume of the greenhouse gases emitted by said reactor (100) at time t; obtaining (1010) a first 3D image of the plume of the emitted greenhouse gases from said 2D images; repeating at time t+1 and obtaining a second 3D image; obtaining (1020) differences between said first and second 3D images; obtaining (1030) from said differences a mass flow of the greenhouse gases emitted by said reactor (100) at time t+1. A method of multivariable control for optimizing the operation of a WWTP, comprising: gathering (2201) a set of optimization priorities established for the operation of the WWTP; gathering and virtualizing (2202) process data and discharge quality data (algorithm 700f), electric tariff (rate) data (algorithm 700d), meteorological data (algorithm 700e) and instant values of mass flow of the greenhouse gases (algorithm 700a) emitted by the reactor (100) obtained over time by the method previously described; optimizing (2400) at least one, preferably at least two, and more preferably all of the following operation variables of the WWTP: control loop setpoint for effluent ammonium (NH4+) concentration; control loop setpoint for ferric chloride dosage (FeCl3) for physicochemical phosphorus removal at the end of the biological treatment; control loop setpoint for DO concentration of aerobic reactors; control loop setpoint for nitrate (NO3-) concentration in the anoxic reactors or internal recirculation flow rate; control setpoint of mixed liquor solids concentration (MLSS) or SRT (solids retention time); HRT (hydraulic retention time); flow rate of the blowers; and operating pressure of the blowers.
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