Optimizing Wastewater Disinfection with Peracids and Chlorine: An Advanced Control Strategy Integrating Batch Kinetics and Hydrodynamics for Reliable Treatment Performance
摘要
Chlorine-based disinfectants are widely used in North America and can achieve the desired microbiological limits. However, these disinfectants are highly toxic and produce potentially hazardous by-products. The present work examines the efficacy of PFA against a wide range of fecal indicators and compares its performance against peracetic acid and sodium hypochlorite. Later, the results of demand/decay and inactivation kinetics are employed in the process modelling where we have considered four dosing control schemes. The result anticipates that the advanced dosing scheme, accounting for wastewater variability and hydraulic characteristics in the contact chamber, demands a lesser disinfectant while meeting regulatory compliance. In addition, the advance control scheme demonstrated steady and reliable performance throughout its operation.