关键词: 层次分析, 钢渣, 资源化利用途径

Abstract: According to the principle of the Analytic Hierarchy Process，a ladder hierarchical structure model was built from three factors of economy index，environment index and steel slag index. Taking steel slags from a Shandong Iron and Steel Company as a case，and along with the specific demand in exploring ways of steel slag as resources，the relationship between the attributes of steel slag and reusing approaches of it was investigated from the chemical composition and phase composition of the steel slag，and the different nature of resources were found out as a structural model index of resource. Then the three related factors on modeling were processed qualitatively and semi-quantitatively. In consequences，the decision-making analysis and evaluation on optimum schemes for steel slag utilization were realized，which can be referred by government and environmental policies' makers.

Key words: Analytic hierarchy process, Steel slag, Approaches of resources utilization