2025 WEF Residuals & Biosolids and Innovations in Treatment Technology Conference

Join us in Baltimore, Maryland, for the 2025 Water Environment Federation: Residuals & Biosolids and Innovations in Treatment Technology Conference – the leading international event in advancing the role of biosolids and resource recovery.  

We are proud to be the online registration and conference program sponsors. We hope to see you at any of our technical sessions where you can meet our residuals and biosolids experts, and discuss the latest developments in the aspects of biosolids treatments and management.  

Our Technical Sessions

Tuesday, May 6

8:30 a.m.-5 p.m. | Tour-Shop A: Poop to Power! Piscataway BioEnergy Facility – Overview and Tour of WSSC’s Innovative Biosolids to Energy Facility
This workshop and tour will provide an overview of the WSSC Piscataway BioEnergy Facility. The workshop will start at the Convention Center where speakers from WSSC and the Consulting firms who assisted with project implementation will provide an overview of the drivers behind this groundbreaking program and the selection of the technologies implemented for thermal hydrolysis, anaerobic digestion, biogas utilization, and the first application of AnitaMox for sidestream treatment of a THP recycle stream in the United States. The late-morning and afternoon will be a comprehensive tour of these facilities that will have been in operation for over a year. Attendees will be divided into four groups and will visit four stations for 30 minutes each, comprised of 15 minutes overview presentation and then 15 minutes of Q&A.

• Speaker: Stephanie Spalding  

8:30 a.m.-5 p.m. | Workshop B: Thickening Optimization – Process Improvements and Plant Benefits

• Speakers: Mario Benisch, Elaine Leonard and Luke Thompson

1:30-5 p.m. | Workshop D: The Intersection of Collaborative Delivery and Biosolids Resource Recovery Projects

• Speaker: Brian Balchunas

Wednesday, May 7

10:45-11:45 a.m. | RB Session 03: Exploring Pathways to Dried Biosolids 
Successful Commissioning and Operation of a New Regional Biosolids Drying Facility 

• Speakers: Nelson Heringer and Adam Parmenter

10:45-11:45 a.m. | RB Session 04: Practical Considerations in Digestion 
Beneath the Surface: Comprehensive Condition Assessment Techniques to Fortifying Tankage for the Future

• Speakers: Teigan Gulliver, Sean Hoss and Brad Stuart  

1:30-4:45 p.m. | RB Session 07: Case Studies for Optimizing THP, Dewatering, and Digestion 
A Week Becomes a Day: New Ideas and O&M Collaboration Leads to the Shortest THP Shutdown on Record 

• Speaker: Stephanie Spalding

1:30-4:45 p.m. | RB Session 07: Case Studies for Optimizing THP, Dewatering, and Digestion
Piscataway WRRF Bioenergy Project – Owner and PDB Collaborative Sampling during Startup and the Transition into Operational Sampling 

• Speaker: Eric Krentel

1:30-4:45 p.m. | RB Session 07: Case Studies for Optimizing THP, Dewatering, and Digestion
Centrifuge Operational Adjustments Result in Cost Saving Opportunities at NEORSD

• Speaker: Adam Parmenter

Thursday, May 8

8:30-11:45 a.m. | RB Session 10: Innovations in Sludge Management: Enhancing Anaerobic Digestion and Phosphorus Control 
Pima’s Plural Purposes for PONDUS 

• Speaker: Adam Parmenter

10:45 a.m.-12:15 p.m. | ITT Session 14: Intensification of Anaerobic Digestion 
Pushing Feed Rates Beyond Limits to Accelerate Startup of THP Digestion: Insights from an In-Situ Pilot Study 

• Speakers: Brian Balchunas and Chris Moline

1:30-3 p.m. | ITT Session 18: Different Approaches to Diverting COD Upstream of Nutrient Removal Facilities
Innovative Approach for Replacing Chemically Enhanced with Optimal Conventional Primary Treatment 

• Speakers: Hany Gerges and Michael Falk  

3:45-4:45 p.m. | RB Session 19: Optimizing Biogas Production and RNG: Microaeration and Sulfur Management 
Overcoming Sulfur Challenges in the Anaerobic Lagoon Startup in South Sioux City, NE

• Speaker: Dillon Devitt and Matthew Thompson

Friday, May 9

8:30-10:00 a.m. | RB Session 23: Advancements in Thickening Technologies: Operational Optimization and Cost Savings 
Advanced Thickening Upgrades: Maximizing Existing Assets by Integration of New Technology

• Speakers: Jeffrey Zahller, Oskar Agustsson and Patrick Roe  

10:15-11:45 a.m. | RB Session 26: Advancing Biogas and RNG: Innovations and Regulatory Challenges
Biogas/RNG Project Lifecycle

• Speakers: John Maley and Brian Bakke