Top: Photo courtesy of Vermeer How you set up your trommel screen for processing compost and mulch directly impacts the efficiency of the screen. A new “pro-tips” guide from Vermeer describes four machine settings that can be adjusted to get the most out of material being fed into the screen: the angle, drum speed, hopper...
AD & BiogasSee All
Natural Gas Vehicles for America (NGVAmerica) and Coalition for Renewable Natural Gas (RNG Coalition) data found that 53% of all on-road fuel used in natural gas vehicles in calendar year 2020 — 345 million gasoline gallon equivalent (GGE) of the 646 million GGE used — was renewable natural gas.
Food WasteSee All
An amended permit issued to a dairy farm that codigests depackaged food waste with manure has no allowance for “visible plastics” in the solids or liquids that are beneficially used.
A new law in Washington State (SB 5345) will help create industrial symbiosis networks that provide collaborative opportunities where the underutilized resources of one company, such as waste, byproducts, energy, water, logistics, capacity, expertise, equipment, and materials may be used as a resource by another.
President Joe Biden’s January 27 Executive Order on tackling the climate crisis included a section the role that America’s farmers, ranchers and forestry landowners play in combating the climate crisis and reducing greenhouse gas emissions, “by sequestering carbon in soils, grasses, trees, and other vegetation and sourcing sustainable bioproducts and fuels.”
Survey of about 300 Wisconsin facilities that either have or had digesters on site, or support digesters with potential feedstock sheds light on status of biogas operations, energy markets and more.
Michigan State University Extension (MSUE) recently released a report, “An Assessment of Manure-based Compost Markets in Michigan,” to inform farmers about demand in the state for compost made from manure and other agricultural byproducts and to help them determine if making and selling the compost can increase farm income.
Cré, the Composting & Anaerobic Digestion Association of Ireland, announced that the country’s Environmental Protection Agency (EPA) published Research 375: Development of Quality Standards for Compost and Digestate in Ireland in May.