钢渣处理技术的环境性能比较

随着钢铁工业的快速发展,大量钢渣弃置堆积,不仅成为环境污染源,而且占用大量的土地。目前钢渣处理技术较多,其中主要的处理方法有冷弃法、热闷法、热泼法、浅盘法、水淬法、风淬法等。本研究采用生命周期评价方法,对主要钢渣处理技术进行评估,定义了生命周期评估边界和清单指标,建立了清单计算模型,得到了不同钢渣处理技术的生命周期清单。为了提高结果的可信性,对模型进行了不确定性分析。结果表明滚筒法和风淬法的环境性能较好,是值得推广的钢渣处理技术。

COMPARISONS OF ENVIRONMENTAL PERFORMANCE AMONG DIFFERENT SLAG TREATMENT SYSTEMS

As iron and steel industry developing rapidly,a large amount of slag was stocked.They are not only the pollution sources,but also occupy large land area.At present,lots of slag treatment systems are developed,such as cold disposal method,hot disintegration method,hot splashing method,instantaneous slag chill process,water quenching method and air quenching method,etc.In this paper,the methodology of life cycle assessment is utilized to evaluate five selected slag treatment systems.System boundary and major ...