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SFBS and SCVS Joint December Dinner Meeting - Development and Implementation of a Stepwise Commissioning Approach for a Major Thickening and Temperature Phased Anaerobic Digestion (TPAD) Project

December 15, 2022
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SFBS and SCVS Members! Join us at the Chef’s Experience for our December Dinner meeting with a presentation by Lance P. Salerno on Development and Implementation of a Stepwise Commissioning Approach for a Major Thickening and Temperature Phased Anaerobic Digestion (TPAD) Project

The San José Santa Clara Regional Wastewater Facility recently completed a Digester and Thickener Facilities upgrade (DTFU) project. The project converted and upgraded dissolved waste activated sludge air flotation thickeners (DAFTs) to co-thickening capability and the mesophilic digestion process to a temperature phased (thermophilic/mesophilic) anaerobic digestion (TPAD) process.

While the project was still in early construction, the team modified the original approach from starting up the entire construction contract as one massive new system to a stepwise sequenced approach, that commissioned different process functions and areas over about a two-year period. The objective of the stepwise approach was to simplify the amount of startup activities that occurred at one time and mitigate impacts to day-to-day plant operations with process changeovers, control system integration, plant staff time for training, new operations and maintenance activities, and it allowed engineering and construction teams to focus efforts sequentially rather than solving problems with the entire system at once. 

The commissioning approach included a series of smaller system startups that were progressed in a stepwise manner and generally consist of: (1) New DAFT startup and thickening of only waste activated sludge (WAS), (2) Primary sludge screening and co-thickening WAS in the new DAFTs, (3) Co-thickening operations with polymer in the new DAFTs, (4) New TPAD digester operations (startup initially in a fully mesophilic arrangement), (5) TPAD digester operations using thermophilic digestion followed by mesophilic digestion operations, (6) Fully integrating gas systems with cogeneration, and (7) Optimization of long term operations through post commissioning activities.

This discussion will present a high-level case study of the approach used to commission this complex project.

Speakers Bio:

Lance is a Managing Principal with Brown and Caldwell, out of Irvine California. His experience includes over 20 Years wastewater and water treatment O&M experience with Brown and Caldwell, 10 Years experience with Malcolm/Pirnie Arcadis in O&M and process engineering and 2 Years as a Manhattan College graduate school laboratory staff member.

His current role is Brown and Caldwell’s National Operations and Maintenance (O&M) Specialty Practice Leader and works with both utilities and private sector clients throughout North America.

As a startup manager and O&M expert, Lance has led numerous major wastewater plant new construction startups at large municipal WWTPs around North America including, San Jose, CA, Orange County, CA, Vancouver, BC, Fulton County Georgia, Salisbury Maryland, and numerous projects with the NYCDEP.   His O&M consulting experience also includes; leading a private sector Contract O&M Services group, conducting staff training, troubleshooting wastewater operations, conducting wastewater treatment plant (WWTP) operability reviews, odor control, unit process operations, and wastewater permitting.

He holds an MS in Environmental Engineering, an MBA in Management, and a BS in Environmental Biology all from Manhattan College, in the Bronx, NY.

Lance is a Qualified Environmental Professional (QE), holds an N-4 and C-1 as a licensed wastewater operator, has presented and/or coauthored 10 nationally published papers on wastewater operations topics, contributed to editing of two WEF Textbook publications including Operations of Water Resource Recovery Facilities, Manual of Practice No. 11, and is a member of the Water Environment Federation Plant O&M Committee.  

Lance is active with several WEF State Associations and operator training programs including California, New York, and the New Jersey. His work in NJ has includes being on the program committee and chairing an operator training workshop for the past 15 years. Lance is a past recipient of the W. Wesley Eckenfelder Award from Manhattan College for Excellence and Professionalism, is a Qualified Environmental Professional, and is a member of the Select Society of Sanitary Sludge Shovelers.

Alicia Alba

Alicia has been with the City of San Jose for 10 years and is currently a Principal Engineer overseeing the Biosolids Package at the RWF-CIP program. She has worked both in private and public sectors with overall 19 years of professional experience managing projects related to recycled water, sanitary sewer collection systems, and upgrades to wastewater treatment facilities in the secondary and biosolids process areas. Alicia earned a BS and MS from San Jose University and University of Maryland of Baltimore County, respectively. 


Chinese Chicken Salad, BBQ Pork Spareribs, Vegetable Spring Rolls, Garlic Chicken Wings, Honey Walnut Shrimp, Spicy Basil Fish, Black Pepper Beef, Honey Sesame Chicken, Asparagus Chicken, Sauteed Deluxe Vegetables, Combination Hong Kong, Chow Mein, and White Rice.

Cost: $40 members, $60 non-members, $25 students 

Event Contact Info:
Nick Steiner

Sessions information is not available at this time.

Speaker information is not available at this time.