I then fill my manure cart with as many fresh cow pies as I can comfortably pull to where I want to spread it. Stirring with a hoe, I then add enough water to make a spreadable slurry.

Cow manure is washed out as a slurry, and kept in covered lagoon tanks like the one on the right, where anaerobic digestion can turn it into biogas. CNH Industrial.

How it works. A pump transfers slurry – mixed by eight automatic submersible mixers overnight – from the underground store tank to a 7.5kW Bauer Green Bedding Separator 3.3-780.

Instead of letting cow manure decompose in open lagoons or settling ponds, farms send the nutrient-rich waste into an anaerobic digester, an enclosed system that decomposes manure and produces ...

With the average dairy farm’s herd size growing, it’s more important than ever to focus efforts on optimal manure management.

Photographs of (a) dried cow dung crust, (b) cellulose slurry after extraction, and (c–f) the cellulose material obtained using the homogenization process of 5, 10, 15, and 20 passes, respectively.

Owen explained: “Biochar has never been produced from livestock slurry, which is 95% water, but separating the solids and the dewatering processes we have developed have made that possible. “The ...

Farm slurry is a mixture of water and cow manure, which is spread on the land as a natural fertiliser. Huw Evans, an agricultural contractor, ...

Cow manure may soon help tackle pollution, greenhouse gases, and waste management issues—all while producing a versatile, eco-friendly manufacturing material. Researchers at UCL Mechanical ...