针对南桐矿业公司目前堆积在矸石山的煤矸石等煤炭固体废弃物进行取样分析，并根据其性质提出可有效利用的途经。
Based on analyzing of coal solid wastes such as refuse in heaps of Nantong Mining Corporation Ltd., this paper puts forward effective utilizing measure according to the property.
阐述了电厂废弃物粉煤灰精细利用的重要意义，介绍了粉煤灰的物理化学性质以及从粉煤灰中提取氧化铝的研究现状。
The significance of further utilization of fly ash is proposed. The physical and chemical properties of fly ash and the status of the research of extracting alumina from fly ash are introduced.
在炼钢污泥物性与物化分析的基础上，概述了我国炼钢污泥的资源化技术研究与进展，表明了转炉污泥所具有的固体废弃物与二次资源的双重性质。
Based on the properties and chemical analysis of steel-making sludge, the paper outlines the research and progress in China's resourcalization technology for steel-making sludge.
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