Utilization of ladle slag for soil stabilization

Abstract

This thesis contains material from 3 papers published in the following peer-reviewed journal in which I am listed as an author.Chapter 3 is published as Xu, B. and Yi, Y. Use of ladle furnace slag containing heavy metals as a binding material in civil engineering.

Research on the environmental stability performance of chromite ore processing residue solidified products

“…Technologies dealing with COPR could be divided into ve main categories: (I) Solidication/stabilization (S/S) technology, [7][8][9] which means that the chromium in COPR is transformed into states and forms that are insoluble, migratory or less toxic by physical and chemical means using some materials such as ordinary Portland cement or alkali-activated cementitious material; (II) chemical reduction technology, including dry-detoxication (utilizing some reducing gases, such as CO) and wet-detoxication (reduction of Cr(VI) to Cr(III) in the liquid phase); [10][11][12] (III) microbial techniques, [13][14][15] i.e. the reduction of Cr(VI) in COPR by microorganisms; (IV) resource utilization methods, 16,17 in which COPR is used as an alternative material to produce certain products, transforming it into useful substances that promote the recycling of waste, such as sintered iron and glass colorants; (V) compound treatment technology, [18][19][20] which refers to using multiple technologies at the same time.…”