Method for biomass assisted separation of particulate matter from a liquid stream and upgrading of the combined solids

摘要

The present invention relates to a method of wastewater treatment in which a filter aid prepared by extrusion of freshly harvested wet lignocellulosic feedstocks or by extrusion of wet lignocellulosic feedstocks having dry matter content 30-75% (w/w) is used to collect sewage sludge and the combined spent filter aid with collected sewage sludge is used for hydrothermal conversion.