New Data Released on Biogas Production at U.S. Wastewater Treatment Plants
Source: 
North East Biosolids and Residuals Assn.

New website provides updated data regarding biogas production as renewable fuel

The North East Biosolids and Residuals Assn. (NEBRA) unveiled a new website that provides updated data on anaerobic digestion and biogas production at wastewater treatment facilities across the United States. The website, www.biogasdata.org, provides policymakers, market analysts, project developers and water quality professionals with key information about the potential for biogas production as a renewable fuel. Biogas can be used in place of natural gas in boilers and engines to produce heat and electricity.

The data, which build on U.S. Environmental Protection Agency (EPA) data, show that the wastewater solids (sludge) from more than 1,200 U.S. wastewater treatment facilities undergo anaerobic digestion and produce biogas. Almost all of this wastewater biogas production occurs at facilities that treat from 1 to hundreds of millions of gal per day (mgd) of wastewater. However, two-thirds of these 3,300 major facilities do not send solids to anaerobic digestion and produce biogas.  In addition, there are more than 13,000 minor facilities (less than 1 mgd in size); a small number of these operate anaerobic digesters. There is clearly potential for considerably more biogas production from wastewater.

The use of biogas at wastewater facilities is also under-developed: the data show that one-third of the treatment facilities that produce biogas do not put it to use for energy, and only about 300 use it to generate electricity. The EPA, other policy makers and renewable energy developers are enthusiastic about the potential for reaping more energy from biogas, thus displacing reliance on fossil fuels.

The new website presents data collected over the past year by a team of biosolids and biogas organizations across the country. Seed funding for the data collection was provided by the Water Environment Federation. Funding for the initial website development was provided by Cambi, the New York State Energy Research & Development Authority and the National Biosolids Partnership, with significant in-kind contributions by project team members, including American Biogas Council, Mid-Atlantic Biosolids Assn., NEBRA, Black & Veatch, and 350 Technologies.

“The goal was to develop and present a consensus-driven data set—data that everyone in the field could rely on,” said Lori Stone, global practice and technology leader at Black & Veatch, one of the principal investigators on the project. “It took hundreds of phone calls to wastewater treatment facilities to ensure the accuracy of the data. The teamwork made the daunting task more manageable.” 

“This field has needed quality, shared data,” said Ned Beecher, executive director of NEBRA, co-principal investigator. “The data we present today are not perfect, but they are a major step forward.  And, thanks to 350 Technologies, we now have a central web-based platform for biogas and biosolids data that we hope will be expanded and improved over the years, through the same collaboration.”

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