Primary Clarifier Process Modeling: Results from Full-Scale Stress Testing and an Overview of Successes and Challenges

摘要

An empirical equation developed and described by Wahlberg (2006) was successfully applied to a historical dataset at the San Jose-Santa Clara Regional Wastewater Facility (RWF) in San Jose, California. The equation is an empirical equation which utilizes primary influent pollutant concentrations and surface overflow rates (SOR) as inputs. Merlo et al. 2016 previously evaluated the use of this equation to predict primary clarifier performance at five full-scale facilities. Merlo showed that this equation could successfully predict primary clarifier performance over a range of conditions. Historical data from the RWF was used to develop a pollutant removal algorithm to predict primary clarifier performance at varying conditions. Extensive field testing at the RWF was conducted to verify that the pollutant removal algorithm accurately predicted performance over a range of conditions. Details of the comprehensive stress test of four full-scale primary clarifiers at the RWF are described.