Wednesday 10:30 AM
[Presentation PDF]

Room: Ruby

A Case Study of Wastewater Treatment Plant Effluent Disinfection with Peracetic Acid (PAA)

The objective of this presentation is to investigate the effectiveness of PAA as a disinfectant for secondary wastewater effluent based on a plant-scale study. Bacteriological samples were collected and analyzed for fecal coliform and the results for the treated effluent are compared to the results for untreated effluent. Bench-scale testing was also conducted to compare the effectiveness of PAA to hypochlorite. With PAA dosages varying in a range of 0.5 mg/L to 3.0 mg/L, f. coliform concentrations of less than 100 #/100 mL were achieved. The full data set shows the correlation of effluent f. coliform levels to disinfectant concentration x contact time (CT) for this site.

Moderator:  Dennis Priewe


John Boll - Carus Corporation

The Carus Water Technologies Group provides products and services in support of municipal drinking water and wastewater treatment operations.

As the Technical Services Manager, John works with one Senior Technical Service Representative and one Laboratory Research Technician.  This staff co-ordinates laboratory testing and field trials with the company’s core product lines: permanganate(s) and phosphate(s).  The group also helps to answer customer’s technical questions, conducts technical training and safety presentations and recommends safe chemical handling and dosing systems.

This position also recommends and oversees water treatment research projects, assisting with new product development testing. 

In 2012, John Boll will have been with Carus Corporation for 39 years in different commercial and technical positions.

John is a life-member of the American Water Works Association (AWWA) and served as the AWWA Illinois Section Chair, 1992-1993.
B.S. Engineering, Purdue University, West Lafayette, IN