Partially dehydrated digestate from biogas plant. Properties and use based on its sorption characteristics

      Аннотация: Digestate beside biogas is next product of anaerobic digestion process. It is traditionally used for agricultural purposes, especially as liquid fertilizer. Though digestate contains important nutrients and is a valuable mineral and organic fertilizer, it is liquid product which has to be utilized immediately or it has to be transported, stored or disposed. Transport and spreading costs can exceed the value of the fertilizer it same, so there are efforts to use this product by another way. This book is focused on this issue, especially to describe the physico-mechanical properties of digestate briquettes in relation to unknown pages of its sorption properties. Three targets have been stated namely: to increase awareness of basic, mainly mechanical, properties of the compressed digestate; to determine by laboratory experiments sorption potential of the digestate briquettes, in comparison with a different material; and last is based on gained properties and measured values changes in digestate briquettes properties depended on water uptake. This study should help next researchers or anyone else who is interested in question of biomass briquettes properties and uses.

Ключевые слова: dehydrated digestate, briquettes from digestate, mechanical properties of digestate, biogas plants, sorption of water by biomass briquettes