The City of Hutchinson, Minnesota conducts audits on incoming raw feedstocks and the screened overs to measure contamination in curbside-collected residential organics.
AD & BiogasSee All
The U.S. Environmental Protection Agency’s AgSTAR program has been tracking development of farm-based anaerobic digestion (AD) facilities for many years. Its latest data — current through May 2022 — reports there are 331 manure-based AD systems, up from 272 in 2021.
Food WasteSee All
“An estimated 71 million metric tons per annum (tpa) of separately collected biowaste were treated through composting and anaerobic digestion (60 million tpa in the EU27 and 11 million in CH, NO and UK),” notes a summary of the report’s findings.
Top: Saccharomyces cerevisiae (Mogana Das Murtey and Patchamuthu Ramasamy, CC BY-SA 3.0, via Wikimedia Commons. Image has been cropped.) Brewer’s yeast used to make beer is typically discarded once it’s no longer needed. The yeast, known as Saccharomyces cerevisiae, absorb humolones, lupolones and other compounds from hops that contribute to beer’s flavor and aroma. Humolones and lupolones...