Multi-critical optimization of waste water treatment plant

Abstract

ABSTRACT

Wastewater treatment plant (WWTP) depends on many factors, in order to enhance the treatment efficiency of the plant, it is necessary to optimize the related parameters. The process of optimizing wastewater treatment plants has been developed quite a lot in recent years, however, this optimization usually only focuses on a specific criterion (parameter) and there are few optimization studies for many simultaneous criteria (multi-criteria). This study applies the theory of multi-criteria optimization based on the measurement data of the Benchmark Wastewater Treatment Station built, operated and tested by European researchers. The research results show that optimizing 2 criteria at the same time will reduce the operating cost of the WWTP by about 11.3% compared to optimizing 1 criterion. Compared with the actual operation of the wastewater treatment plant, after optimization, the operating cost is reduced by 40%.

Keywords: Optimization; multi criteria; waste water treatment plant; WWTP; Benchmark.