2014 EPRI Debris Management Interest Group Annual Workshop Abstract

The adoption of the new Clean Water Act 316b intake structure regulations issued in May 2014 adds a significantly expanded challenge to provide “green” technology in power plants while maintaining efficient and reliable plant operations. In developing compliance plans, a number of technologies have been endorsed by EPA as acceptable for use to control impingement mortality. In contrast, each plant will also need to develop its own program to find the Best Technology Available (BTA) to lower entrainment mortality based on site-specific factors. With the burden now on individual plants, the determination of BTA will also include consideration of economic and qualitative factors including plant efficiency. Current practice at many plants includes chemical-based programs to control a wide range of fouling problems and ensure reliable operations. These practices will come under increased scrutiny, but may in some cases constitute BTA compared to other technologies and be essential to ensure reliability of plant operations.

The role of chemical treatment programs in the context of comprehensive compliance planning will be examined. New regulations will allow state permit writer to look in every case at a wide variety of factors that will be discussed. They will also review more closely at the use of chemicals and justifications may need to be presented. Documentation on how the chemicals can be used alone or in combination with mechanical devices will need to be provided and documented as part of the compliance research and planning process. Comparisons with other chemicals in general and/or specific chemicals with regard to certain species of concern may be required.

For more information on Mexel and Clean Water Act 316(b) click here!

Leave a Reply