A Danish company’s plans to turn cow manure into renewable energy in Minnesota and Wisconsin’s dairy country have tanked, at least for now. Nature Energy planned to build several large-scale anaerobic ...
An anaerobic digester used by the city of Ames' Water Pollution Control Facility. One of two recent feasibility studies by an Iowa State University research team exploring using prairie grass to make ...
Technician Blake Iske looks out over farmland adjacent to the Marshall Ridge Renewable Energy Center in State Center on Sept. 18. The facility’s three anaerobic manure digesters extract methane from ...
Researchers from the University of Valladolid and the Technical University of Madrid in Spain have proposed to hybridize biogas and biomethane production systems from cattle manure anaerobic digestion ...
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