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Composting, Operations

Trommel Screening Efficiency

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 & Biogas

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AD & Biogas, Climate

RNG Use Increases 267% Over Last Five Years

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.


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Business+Finance, Climate, Policies + Regulations

Washington State’s Industrial Symbiosis Law

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.

AD & Biogas, Climate, Composting, Food Waste, Markets, Soil Health

USDA Climate Smart Ag Strategy Neglects Compost As A Tool

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.”

AD & Biogas, Business+Finance, Climate, Facilities, Food Waste, Markets, Operations

Wisconsin Biogas And Feedstock Survey Report

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.


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Business+Finance, Composting, Markets, Soil Health

Manure-Based Compost Market Assessment

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.

Food Waste, Markets

Trash Pies

Scrolling the headlines in a roundup of articles on food waste, I was drawn in by one that read “San Francisco pizzeria utilizing food waste is relocating to the Mission District.”

AD & Biogas, Composting, Markets, Policies + Regulations

Quality Standards For Compost And Digestate In Ireland

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.

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