Medicament feeding optimization method and system for mining and beneficiation wastewater pollutant treatment

The invention belongs to the technical field of water treatment, and particularly relates to a medicament feeding optimization method and system for mining and beneficiation wastewater pollutant treatment. The system comprises a water inlet on-line monitoring unit, a reaction system on-line monitoring unit, an upper computer, a medicament adding unit, a medicament meter and a water outlet on-line monitoring unit; and the water inlet on-line monitoring unit is used for monitoring the water inlet condition, the upper computer adopts a calculation model, the total amount of pollutants is calculated through the water inlet flow and the pollutant concentration, the medicament set adding amount is given, and a design algorithm is corrected through feedback signals of the reaction system on-line monitoring unit and the water outlet on-line monitoring instrument, so the purposes that the water treatment medicament is not added excessively and the effluent pollutant index is within the set range are achieved, and the