Chlorination has been the preferred disinfection method used for treating WWTP effluent, but concerns about worker and public safety and the potential for chlorinated effluent to be toxic to aquatic life have called its use into question. Although chlorine, sometimes followed by dechlorination, continues to be used at most municipal WWTPs, use of other means, such as UV disinfection, is increasing. UV is a technology capable of providing effective WWTP effluent disinfection while reducing safety and environmental toxicity issues. A host of issues must be carefully considered to verify that UV facilities are safe, reliable and economical. These issues include the cost of power and lamp replacement, lamp fouling, ability of the water to allow transmission of UV radiation, tailing, photoreactivation and regrowth of disinfected microorganisms, and dose selection.
This course is suited for wastewater treatment engineers and professionals seeking to gain an understanding of UV disinfection technologies. A complete description of UV science is described along with its application to the disinfection of wastewater. The three major UV technology options are fully presented and compared. Results of a pilot demonstration are looked at to give the student a real world example for evaluating UV technologies as an option for disinfecting wastewater at an existing plant.
This course is also an excellent overview for those professionals working in the field of wastewater treatment.
The student is expected to read and review the material contained in the report titled; Evaluation of Ultraviolet (UV) Radiation Disinfection Technologies for Wastewater Treatment Plant Effluent, NYSERDA Report No. 04-07, 2004.
The student must take a multiple-choice quiz consisting of forty (40) questions at the end of this course to earn PDH credits.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- General Requirements of the USEPA Clean Water Act
- UV Science
- Current UV Disinfection Technologies Used in Wastewater Treatment
- Variations of Alternative Lamps and UV Equipment
- Design and Dose Requirements of UV Systems
- O&M Requirements and Costs of UV Systems
- Support Information for Determining UV Disinfection Options
Click on the following link to the PDF document to review the course material before taking the quiz for credit.
Having trouble downloading the PDF file?
If clicking the link does not bring you to the PDF file, then right-click the link. Click "Save Target As" and save on your desktop. To view the file, double-click the icon on your desktop and return to this page to take the quiz. You may want to bookmark this page for your convenience. If you have questions, Live Support Chat can help.
To receive PDH credit for this course, you must pass a multiple-choice quiz. Click the button below to Purchase Course and Take Quiz. To take the quiz, your computer must be set to accept cookies. See how to check your cookie settings.