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首页> 外文期刊>Journal of Solid Waste Technology and Management >THE UTILIZATION AND STATUS OF STEEL INDUSTRY SLAGS: A PERSPECTIVE FROM FINLAND
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THE UTILIZATION AND STATUS OF STEEL INDUSTRY SLAGS: A PERSPECTIVE FROM FINLAND

机译：钢铁废料的利用与现状：芬兰的一个视角

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摘要

The world's production of steel, about 900 million tonnes in recent years, means the generation of around 400 million tonnes of co-products, solid waste and sludge. More than 80 % of the co-products arising from steel production are slags, the further processing of which into marketable products has been an object of research and product development throughout the steel producing world. The quantities and characteristics of these materials indicate that environmental loading from the steel industry is above all a matter of volume. The utilization of blast furnace and steel slags has long traditions and well-known applications in the building and road construction industries and in soil improvement. The product development has led to the almost 100 % utilization of blast furnace and also considerable amounts of steel slags. While new methods and applications are continuously being looked for and developed in order to utilize all types of steel industry co-products, there is at the same time an increasing debate over the status of the slags, whether they are products or waste material. This question has emerged mainly as a consequence of the recent changes in environmental legislation and regulations. This paper discusses the properties and utilization of slags and also the threats their utilization is facing at the moment in Finland.
机译：近年来，全球钢铁产量约为9亿吨，意味着产生了约4亿吨的副产品，固体废物和污泥。钢铁生产产生的副产品中，有80％以上是炉渣，其渣进一步加工成可销售产品一直是整个钢铁生产领域研究和产品开发的目标。这些材料的数量和特性表明，钢铁行业的环境负荷首先是数量问题。高炉和钢渣的利用在建筑和道路建设行业以及土壤改良方面具有悠久的传统和众所周知的应用。产品的开发导致高炉的利用率几乎达到100％，而且还产生了大量的钢渣。为了利用所有类型的钢铁工业副产品，不断寻找和开发新的方法和应用，与此同时，关于矿渣状态的争论日益加剧，无论矿渣是产品还是废料。这个问题的出现主要是由于环境法规的最新变化所致。本文讨论了矿渣的性质和利用，以及目前矿渣利用面临的威胁。

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