Secrets to Co-Digestion Success

A Clean Start and a Closed Loop: Roseville’s Organics-to-Vehicle-Fuel Story

Wednesday, April 18
2:00 PM - 2:50 PM
Location: Meeting Room 304/305, Sacramento Convention Center

CWEA: 1 Contact Hour

Practice Area: Team Challenge Area: The Big Shift to Co-digestion

This project includes co-digestion, biogas upgrading to RNG, an RNG fueling facility, and microturbines, creating a closed-loop solution for the City of Roseville by fueling the City’s collection vehicles with renewable fuel generated from the digestion of those organics and powering the processes with electricity generated from the microturbines.

Learner Outcomes:

Level: Intermediate; working knowledge of subject matter / journeyman level staff

Alison C. Nojima

Senior Staff Engineer
Brown and Caldwell

Biography:

Alison has more than 5 years of experience as an engineer specializing in wastewater and renewable energy projects. Alison has served as an engineer focusing on anaerobic digestion and beneficial reuse of digester gas. She has wastewater treatment plant design experience in digestion, alternative waste digestion (food waste and fats oils and grease), sludge screening, combined heat and power, and digester gas upgrading to biomethane.

Presentation(s):

Send Email for Alison Nojima

Adam Ross

Project Manager
Brown and Caldwell

Biography:

Adam Ross is a Senior Manager at Brown and Caldwell, focusing on anaerobic digestion and waste-to-energy projects. He is currently managing projects that include engine-based cogeneration, microturbines, gas upgrading for vehicle fuel, high strength waste receiving, gas storage, boilers, and digesters. He hopes to win the Sludge Trudge this year.

Presentation(s):

Send Email for Adam Ross

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Todd Jordan

Senior Engineer
City of Roseville

Presentation(s):

Send Email for Todd Jordan

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Ken Glotzbach

Wastewater Utility Manager
City of Roseville

Presentation(s):

Send Email for Ken Glotzbach

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George Hanson

Senior Engineer
City of Roseville

Presentation(s):

Send Email for George Hanson

Brian Peck

Director of Engineering
South Orange County Wastewater Authority

Biography:

Brian Peck has been the Director of Engineering with the South Orange County Wastewater Authority (SOCWA) since the year 2000. SOCWA operates three wastewater treatment plants and two ocean outfalls in Orange County. Mr. Peck graduated from the University of Illinois in 1984 (and left long frigid winters behind shortly thereafter). He has been active in professional organizations including AWPCA (now AZ Water), the Tri-State Seminar, CWEA and SARBS since 1986. Mr. Peck is married to Tricia Butler, the Chief Engineer of the Santa Margarita Water District. Based on the dinner conversation topics it is easy to understand why their three sons left home at the earliest opportunity.

Presentation(s):

Send Email for Brian Peck


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A Clean Start and a Closed Loop: Roseville’s Organics-to-Vehicle-Fuel Story

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