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“Where We Bridge the Gap Between Water Plant Operators and Engineers”
In Episode 18, Heather Jennings, PE, explores moving bed biofilm reactors (MBBRs) with her guest, Dan Turner, president of Blue Whale Technologies. MBBRs biologically treat wastewater by incorporating specialized media that increase surface area on which microorganisms can grow and consume organic material. Heather and Dan discuss MBBR applications, equipment, sizing and design, as well as process optimization.
Links: Blue Whale Technologies
Wanda’s Water Tidbit: The Mpemba Effect
- Arxiv.org—Monwhea Jeng (2005): Hot Water Can Freeze Faster Than Cold?
- SciShow—YouTube: Does Hot Water Freeze Faster Than Cold Water?
- The Weather Network—YouTube: The Mpemba Effect and Why Hot Water Freezes Faster Than Cold

Abstract
In this podcast episode, host Heather Jennings, PE, interviews Fred Black and Ray Ramos of the New Mexico Rural Water Association on the topic of Troubleshooting Water and Wastewater Systems. Fred and Ray troubleshoot water and wastewater systems in the state of New Mexico, and together they have more than 50 years of experience in the water/wastewater industry.




A plastic manufacturer in Taiwan needed a new process to efficiently treat elevated incoming chemical oxygen demand (COD) to comply with stringent 