Method and system for utilising waste

摘要

Waste that contains fibers and combustible material is slushed in a continuous-operation high-consistency pulper ( 10 ) to suspend in water the fibers contained in the waste. From the pulper ( 10 ) are discharged substantially continuously a fiber suspension (P₁) through a screen plate; and non-defibrable material (R₁) by means of a mechanical transfer device ( 22 ). The fiber suspension (P₁) is sorted and cleaned for use as raw material in paper or board. The non-defibrable material (R₁) and the rejects (R₂-R₄) separated from the fiber suspension (P₁) in the sorting and cleaning stages are used as fuel in energy production and/or utilized as raw material.