Planning for Future Droughts — Lessons Learned at Water Resource Recovery Facilities
The California drought has presented unexpected challenges to water resource recovery facilities (WRRF). This paper will provide detailed examples of…
There’s More to Chemical Precipitation for Phosphorus Removal than Meets the Eye
In response to Utah State’s introduction of nutrient removal regulations, the Central Valley Water Reclamation Facility initiated an evaluation of…
The Right Tools for Process Control
Water resource recovery facilities often implement process automation to improve treatment performance and decrease operational costs. However, successful automation requires…
A Critical Review of Nuisance Foam Formation and Biological Methods for Foam Management or Elimination in Nutrient Removal Facilities
The classifying selector was introduced to the wastewater industry in 2001, after several successful full-scale applications. The classifying selector concept…
A Biological Selector for Preventing Nuisance Foam Formation in Nutrient Removal Plants
The Classifying Selector was introduced to the wastewater industry in 2001, after several successful full-scale applications. The Classifying Selector concept…
Introduction of New Process Technology into the Wastewater Treatment Sector
Innovative wastewater treatment technologies are developed to respond to changing regulatory requirements, increase efficiency, and enhance sustainability or to reduce…
PFAS Technical and Regulatory Guidance Document and Fact Sheets
This Interstate Technology and Regulatory Council (ITRC) online document includes the PFAS Technical and Regulatory Guidance Document, PFAS Fact Sheets…
Fiber Separation Using Innovative Circular Gravity Flotation and Fiber Detector
The theories, principles, specific engineering design, potential applications, and practical applications of circular gravity flotation process, a floated fiber detector,…
Operation and Performance of Clari-DAF® System for Water Purification
ITT (now Xylem) Water & Wastewater Leopold Business Unit that has provided Dissolved Air Flotation (DAF) systems to the municipal…
Operation and Performance of the AquaDAF® Process System for Water Purification
This chapter of Evolutionary Progress in Science, Technology, Engineering, Arts, and Mathematics (STEAM) introduces the high-rate AquaDAF® clarification system, a…
Anticipating Trade-Offs of Using Alternative Water Supplies
As populations shift and the climate changes, water utilities need to diversify their water supply portfolios to provide long-term reliability,…
Cake Pumping with Progressing Cavity Pumps: Case Studies and Design Considerations
Owners and Engineers have turned to the progressing cavity (PC) pump technology for the pumping of sludge at water and…