Friday, October 02, 2015

Implementing Low-Cost Modifications to Improve Nutrient Reduction at Wastewater Treatment Plants

Nutrient pollution is one of America’s costliest and most challenging environmental problems. However, many of the nation’s wastewater plants were not designed for nutrient removal and major retrofits may be a significant hurdle.
EPA recently released draft report on “Case Studies on Implementing Low-Cost Modifications to Improve Nutrient Reduction at Wastewater Treatment Plants.” The recent EPA draft report showcases a number of communities that were able to achieve better nutrient treatment at WWTPs through relatively low-cost modifications without requiring costly infrastructure upgrades. Nitrogen discharge levels in 12 case study plants were reduced by about 20 to 70%. In many cases, these facilities also reduced energy consumption and lowered operational costs.
Case Studies include:
  • City of Bozeman, Montana
  • City of Chinook, Montana
  • City of Flagstaff, Arizona
  • City of Layton, Florida
  • City of Montrose, Colorado
  • City of Tampa, Florida
  • City of Titusville, Florida
  • Florida Keys Aqueduct Authority
  • Hampden Township, Pennsylvania
  • Town of Crewe, Virginia
  • Town of Wolfeboro, New Hampshire
  • Victor Valley Wastewater Reclamation Authority, California

EPA is interested in learning of additional communities’ successes and intends to update this document to help more of the nation’s wastewater treatment plants make progress towards additional nutrient reductions. Interested parties are invited to comment and recommend additional case studies by December 15, 2015 to


Source: Water Headlines & US EPA website

EPA Launches New Tool to Support Community Interest in Green Infrastructure

EPA is releasing a new web-based tool that helps local officials and other community members consider the benefits and uses of green infrastructure. The Green Infrastructure Wizard, or GIWiz, responds to growing community interest in using green infrastructure as a means of addressing water quality and a range of other local goals. Using a self-guided format, users can find EPA tools and resources to:
  • Learn the basics of green infrastructure;
  • Explore options for financing green infrastructure;
  • Visualize and design rain gardens, permeable pavement, and other types of green infrastructure;
  • Understand how other communities are using green infrastructure to revitalize neighborhoods and enhance land use; and
  • Develop green infrastructure public education and outreach campaigns.
EPA developed the Green Infrastructure Wizard with input from local, state and tribal partners. EPA is inviting additional input on this Beta version of the product, with the goal of making continued improvements going forward.
Read more here
Source: Water Headlines