Session 16A: Facility Operations & Lessons Learned - Livestream
1:15pm - 2:00pm
Remotely Designed: Lessons Learned Designing during a Pandemic
1HDR; 2LOTT Clean Water Alliance;
This presentation will share lessons learned from the design of a complex WWTP upgrade project performed during the COVID-19 pandemic, forcing all parties to work remotely. It showed the importance of existing project management tools and the development of additional tools. In March of 2020, HDR was contracted to design and install new turbo blowers at the LOTT Clean Water Alliance Martin Way Reclaimed Water Plant. Due to stay-at-home” orders our team quickly pivoted to advancing the project with the use of remote tools to facilitate collaboration and communication among consultant team members as well as LOTT staff. Clear meeting topics and agendas are always key to project management and even more so with remote or virtual connections. The presentation will include a discussion of the following elements which contributed to this project’s success:
The project is currently under construction and is scheduled to be completed by June, 2021.
2:00pm - 2:45pm
Lessons from the Startup of Meridian WRRF’s New Primary and Secondary Treatment Systems
1Brown and Caldwell; 2City of Meridian, Idaho; ,
To meet stringent effluent ammonia and phosphorus requirements, the City of Meridian recently expanded its Wastewater Resource Recovery Facility (WRRF) capacity to 15 mgd (maximum month flow) with the addition of an influent pump station, a headworks facility, two primary clarifiers, four aeration basins, two secondary clarifiers, a return activated sludge (RAS) classifying selector/anoxic basin, and sludge pumping stations. With the new facilities in place, the City planned to shut down the existing primary and secondary treatment trains until the trains could be retrofitted to meet the more stringent effluent limits. To commission the new facilities and quickly shut down the existing facilities, the City needed to plan for a complex transfer procedure of the existing mixed liquor into the new aeration basins. Our team envisioned three options:
The City selected a quick transfer as the preferred method and extensive planning began. Beginning over a year in advance, the City, engineer, contractor, and systems integrator held a series of meetings to identify critical connections and key tasks to be completed before, during, and after the transfer. This presentation will discuss the successes, challenges, and lessons learned from the planning and startup of the new systems at the WRRF. It will also include WRRF performance data from startup and from a year into operation.