Grass is an alternative to silage maize in biogas production

Production of biogas from silage maize booms. But this green energy production also has its drawbacks: Maize monocultures block increasingly large areas for food production and result in a monotonous landscape. So far unused ...

Study evaluates strategies for generating electricity from hog waste

(Phys.org) —Capturing methane gas from hog farms and piping it into existing natural gas pipelines may be a cost-effective way to meet North Carolina's Renewable Energy and Energy Efficiency Portfolio Standard (REPS), according ...

Using wastewater as fertilizer

Sewage sludge, wastewater and liquid manure are valuable sources of fertilizer for food production. Fraunhofer researchers have now developed a chemical-free, eco-friendly process that enables the recovered salts to be converted ...

page 2 from 2