In this episode of the Cities of the Future series, our host, Paul Brown, talks with Dr. David L. Parry, P.E., BCEE. Dr. Parry, a CDM vice president, has more than 25 years of experience in wastewater treatment, solids processing, and energy management. He is currently serving as the chair of the High Performance Digestion Technology team for the Water Environment Federation's bioenergy subcommittee.
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