High efficiency sedimentation tank is the key process unit for urban reclaimed water plant to reach the standard and provide high quality reclaimed water.Aiming at the problems of large fluctuation of influent load and high effluent demand,the intelligent control and management system of efficient sedimentation tank was studied on a pilot plant with a treatment scale of 240 m3/d,and a multi-parameter coupled PID control strategy based on discrete model was developed to achieve fine control and management of the dosing of phosphorus removal chemicals.When the target orthophosphate value is 0.14 mg/L,the effluent TP is stable below 0.3mg/L,the average concentration of orthophosphate in effluent is(0.13±0.02)mg/L,while and the amount of phos-phorus removal chemicals is saved by 27％.
关键词
化学除磷/智能控制/高效沉淀池/减污降碳
Key words
Chemical phosphorus removal/Intelligent control/High-efficiency sedimentation tank/Pollution and carbon reduction
维普
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