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Walki Group


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Biomass cover improves drying process and energy content of logging residue

Logging residue is an inexpensive and easily accessible source of biofuel but to improve the energy content it must first dry on the ground. After that it can be stored in piles for several months. To shelter the piles from moisture due to rain, snow and ice, Finnish-based Walki has developed a paper-based, waterproof cover that can be chipped and burned together with the residue.