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Operational, Monitoring, and Response Data from Unit Processes in Full-Scale Water Treatment, IPR, and DPR

Project: 14-16
Estimated Release: TBD
Type: Scientific Investigation

Program: Principal
Funding Partners: NA
Total Investment: $200,000

Principal Investigator: Andrew Salveson, Carollo Engineers


There is work underway in WRRF-13-03 and WRRF-13-13 to characterize operational failures and response; from this information, recommendations for operation, maintenance, and response plans are being developed. This project is designed to supplement and complement those efforts by assessing current full-scale operations. The research team is expected to analyze facilities that use treatment processes commonly used at potable reuse plants (e.g., MF, RO, UVAOP, GAC, etc.). The research team will determine how frequently failures and anomalies occur and how long it takes to respond. This project will contain a series of 4 to 10 case studies around each process to demonstrate quantitative impacts to water quality and process performance, including metrics such as mean time to failure, average response time, labor hours and equipment costs to respond to each event. Additionally, qualitative information regarding the types of responses, operator preparedness, recommendations for future response, and recommendations for future design considerations to avoid or mitigate such impacts will also be a part of these case studies. The project team will use this analysis to develop further recommendations that can assist with shaping regulations and design or operational considerations around the following unit process operations in a DPR context:

  • MF, RO, UV/AOP, Cl2 Disinfection
  • Floc/Sed, Ozone, BAC, GAC, UV-Disinfection, Cl2 Disinfection

Goals and Objectives

This project will:

  • Assess the failure mechanisms of potential DPR processes that could impact water quality/health risk and the range of times to a failure event associated with specific unit processes
  • Obtain qualitative operational information regarding failure or anomalous events to better understand failures
  • Develop recommendations for improving operational and response procedures and potential regulations

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