·Copper slag a waste solid produced in the copper smelting process is a high quality secondary resource with huge output The recycling and utilization of copper slag is of great interest because it avoids the loss of valuable metals and the threat of harmful metals and saves a lot of natural resources and energy This paper firstly reviews the main methods for the
·The paper presents an overview of the present state of coal gangue production and utilization and investigates the environmental impact caused by the practice of stacking coal gangue The comprehensive utilization of coal gangue can be divided into two categories one is directly mixed with other solid waste with large consumption simple
·This article presents a comprehensive literature review of the main trends in utilizing stone dust in recycled aggregates in the past decade and its influence on concrete properties
·In this paper we selected copper tailings as a representative case study First we used material flow analysis for copper tailings in Tongling City and then constructed a life cycle assessment model The results show that 1 the current comprehensive utilization of tailings is relatively single with low added value a common problem in
·The relevant research on the comprehensive utilization of red mud has obtained a certain scientific value With the pace of constructing resource saving and environment friendly model being accelerated it is particularly important to realize the value of secondary development and utilization of resources
·This approach indubitably generates dual benefits of promoting ecological preservation and supporting sustainable economic growth This review provides possibilities for the comprehensive utilization of abalone shell resources suggesting positive outcomes for the high value utilization of abalone shells
·It is much preferred over the current methods This method significantly increases the added value of the product and greatly reduces energy consumption This paper reviews the comprehensive utilization of copper slag and provides some recommendations for the large scale and green utilization of copper slag in the future
·The main component of titanium iron concentrate is magnetite For titanium iron concentrate in Panzhihua the content of iron is about 50% and the content of TiO 2 is about 12% Three process methods namely the Blast Furnace iron making process the rotary kiln electric furnace process and the reduction magnetic separation process dominate the titanium
DOI /MIN9060362 Red mud RM is a by product of extracting of alumina from bauxite Red mud contains high quantities of alkali generating minerals and metal ions which can cause significant environmental damage Many valuable components such as rare earth elements Al and Fe in RM are difficult to be utilized owing to their particle size and alkalinity Thus
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