Tag Archives: Anaerobic Digestion

Grand Junction Powers City Vehicles With Digester Gas

August 13, 2015

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Rather than flaring methane, digester gas at the Persigo facility enters conditioning equipment, which removes hydrogen sulfide, siloxanes, and carbon dioxide and then compresses the gas. Photo courtesy of City of Grand Junction, Colo.

In what is thought to be the largest projects of its kind in the U.S., the City of Grand Junction, Colo., began using biogas from its water resource recovery facility to fuel 38 city-owned vehicles. As part of a $2.8-million project completed in April, the city began conditioning and compressing digester gas to improve its […]

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Biological Nutrient Removal Featured in Most Attended Technical Session at WEFTEC 2014

April 29, 2015

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The City of Kelowna, British Columbia installed the world’s first fermenter at the Kelowna Wastewater Treatment Facility. Photo courtesy of Gerry Stevens and the City of Kelowna.

James L. Barnard shares his summary of the session   Looking back at the most-attended technical session of WEFTEC® 2014 can give a taste of the type of information and education that will be available at WEFTEC 2015 in Chicago. Technical Session 206, “The Complete Guide to Fermentation for Biological Nutrient Removal,” drew 220 attendees […]

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Innovation for the Next Generation at WEF/IWA Residuals and Biosolids Conference 2015

April 28, 2015

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Residuals and Biosolids 2015 Thumb

The Water Environment Federation (WEF; Alexandria, Va.) and International Water Association (IWA; London) present a multitude of residuals- and biosolids-related topics at the WEF/IWA Residuals and Biosolids Conference 2015. Being held at the Walter E. Washington Convention Center in Washington, D.C., June 7–10, the educational event will feature 22 technical sessions covering topics such as […]

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Bio-Bus Hits the Streets of England

April 2, 2015

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The annual waste from five people produces enough biomethane to fill the fuel tank of the 40-passenger Bio-Bus once, enough for a 300 km journey. The bus now travels a route that carries an average of 46,500 passengers every week. Photo courtesy of Wessex Water, Julian James Photography.

The green movement is gaining momentum in the United Kingdom (U.K.). On Nov. 20, the Bio-Bus, which runs on biomethane gas, picked up its first passengers. The 40-seat bus can travel as much as 300 km (186 mi) on a tank of gas and emits 20% to 30% less carbon dioxide than a standard diesel […]

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Victor Valley Sets Its Sights on Energy Neutrality

August 27, 2014

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Victor Valley Wastewater Reclamation Authority (VVWRA; Victorville, Calif.) will host a ribbon-cutting ceremony celebrating the Omnivore™ system, which will help the authority become 90% to 100% energy neutral by 2015. Photo courtesy of VVWRA.

Wastewater reclamation authority unveils retrofitted anaerobic digester In 2008, the Victor Valley Wastewater Reclamation Authority (VVWRA; Victorville, Calif.) set two goals: offset operation and maintenance expenses and increase revenue. After reviewing its entire facility, VVWRA came up with an idea of repurposing its anaerobic digesters to produce energy and developed a holistic energy-management plan. These […]

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Moving Into a Resource Recovery Paradigm

April 29, 2014

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Sandino explained that the sector is moving into a resource recovery paradigm to luncheon attendees. WEF photo/Jennifer Fulcher.

Water sector leader presents a vision for the future at WEF headquarters   The future requires that wastewater treatment processes move into uncharted waters. Julian Sandino, a vice president at CH2M Hill (Englewood, Colo.), presented his vision of the sector’s future during a luncheon at the Water Environment Federation (WEF; Alexandria, Va.) headquarters on Feb. […]

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