Earthwise Navigation

2021

Disinfection Operations for Water and Wastewater Systems

7.0

Drinking Water and Wastewater

Delaware Technical Community College

Kyrstyn Hernandez

kgolacin@dtcc.edu

3022596380 Ext.

Partner Website

Course is designed to teach the small water and wastewater system operator about chlorine and its alternatives for the primary disinfection of drinking water and treated wastewater. These alternatives may reduce disinfection by-products and eliminate the need for dechlorination. The course will describe the key criteria for disinfectant selection, including cost, safety, maintainability, control and monitoring considerations. Also presented are the pros and cons of chlorine dioxide and chloramine as alternatives to help reduce disinfection by-products and the benefits and features of alternative disinfectants like ozone, ultraviolet, mixed-oxidant systems, and peroxide. The course includes a look at the various laboratory methods to determine residuals and demonstrations of some of the practical simplified test protocols. Some class time is devoted to hands-on practice of a number of residual test methods

Basic thru Intermediate

I. Why we disinfect? II. Comparing Gas, Liquid and Powder base chlorine III. Residual Measurements IV. Other chlorine based systems V. Ozone VI. Ultroviolet VII. Mixed OXidant Systems VIII Ultrafiltration/Nanofiltration IX Other Disinfection Systems

Operators, public works directors, utility supervisors, engineers.

Classroom