EVALUATION ON THE EFFECT OF RESOURCE CIRCULATION BY AN ALTERNATIVE RECYCLING TECHNOLOGY

COMPARISON BETWEEN HORIZONTAL RECYCLING AND CASCADE RECYCLING OF WOOD RESOURCE

Abstract

The purpose of this study is to evaluate the CO₂ reduction effect by a horizontal recycling and a cascade recycling of paper, which is one of the principal uses of wood resource. Production of recycled paper (horizontal recycling) and energy recovery by power generation (cascade recycling) were chosen as case studies. In order to evaluate the CO₂ reduction effect independently of the accounting method of biomass derived CO₂, biomass power generation was incorporated into the system boundary. The result showed that the CO₂ reduction effect varied by the range and quantity of functions provided during the life cycle of wood resource.