Sidestream Treatment for Nutrient Removal and Recovery
12/09/2009 - Past Webcast
Introduction:
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This webcast focused on removal and recovery of nutrients such as nitrogen and phosphorus from sidestream recycle processes at wastewater treatment plants.
Agenda:
- Introduction to Sidestream Treatment – Sudhir Murthy
- Sidestream Treatment Nutrient Removal – Beverley Stinson
- Sidestream Treatment Nutrient Recovery Strategies – Rob Baur
- Question & Answers – All Presenters
Topics:- Why and when sidestream treatment should be implemented
- Nutrient removal and recovery from sidestreams – theory, issues and challenges
- Impacts of biosolids processes on sidestream characteristics
- System treatment options: design and operational factors
- Examples of sidestream systems for removal of nutrients
- Examples of recovery systems for nutrients from recycle streams
Speakers:
Sudhir Murthy, DC Water and Sewer Authority
Dr. Sudhir Murthy is Manager, Research and Laboratory at the District of Columbia Water and Sewer Authority. The Authority has been interested in sustainable technologies for nitrogen removal and has therefore been investigating several types of sidestream treatment processes that use less energy or less external carbon at the Blue Plains AWTP. This planning effort has resulted in a patent for a bioaugmentation process and a NACWA 2009 Research and Technology award for development of a sidestream treatment concept. Dr. Murthy is a professional engineer and a licensed wastewater treatment plant operator. He received his MS and PhD degrees in environmental engineering from Virginia Tech.
Beverley Stinson, AECOM
Dr. Beverley Stinson is a Vice-President & Wastewater Technology leader with AECOM Water. She has a Bachelors and Doctorate in Engineering from Queens University in Belfast and Imperial College in London. She has had the pleasure of working with several municipal agencies challenged with the goal of meeting Enhanced Nutrient Removal Standards and is a member of WERF’s Research Council. Her background includes work on several proven, highly effective, efficient and sustainable sidestream centrate treatment projects. These projects have reduced nitrogen and phosphorus loads, energy and chemical requirements, as well as tank volume and embedded carbon. Additionally, sidestream centrate treatment installations have lead to stabilization of plant performance and facilitated nutrient recovery.
Rob Baur, Clean Water Services, Portland, OR
Rob Baur has worked for Clean Water Services for over 33 years, currently as a Senior Operation Analyst. He has published and presented papers on hypochlorite, struvite and nutrient recovery. He was the lead to bring nutrient recovery to the Durham treatment plant. He received patents on the UFAT fermentation and on WASSTRIP struvite prevention and nutrient recovery.
Moderator:
Sudhir Murthy, DC Water and Sewer Authority
Cooperating Organizations:
Organized with the support of the Water Environment Research Foundation (WERF) Nutrient Challenge