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ZEWA (Zero waste) process: a new way for co-processing steel Slag

机译：Zewa（零废物）工艺：共同加工钢渣的新途径

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摘要

This paper summarizes the results obtained in the frame of an European project involving eight partners from steel, coal and cement industry. Its objective is to set up a process to transform by products generated from the major industrial sectors into valuable mineral and metallic products enabling a reduction of CO2 emissions. The by products are steel slags, residues from scrap conditioning and car dismantling, fly ash from power plants and bottom ash from municipal incinerators. A pilot plant was erected at Vitkovice steelworks (Ostrava CZ) and 11 campaigns have been performed. The feasibility of the process and the suitability of the various by products have been assessed. The mineral and metallic products have been fully characterized. All mineral samples were chemically and mineralogical analyzed and submitted to the grinding test, reactivity test, leachability test for soluble chromium evaluation. All these test indicate that the synthetic slags obtained from the ZEWA process are not fundamentally different from an industrial granulated blast furnace slag and there would appear to be no technical obstacles to their use as additions to Portland cement clinker after obtaining a technical agreement from the official institutes.
机译：本文总结了涉及钢铁，煤炭和水泥行业的八个合作伙伴的欧洲项目框架中获得的结果。其目标是建立一个由主要工业领域产生的产品转化为有价值的矿物和金属产品，从而减少二氧化碳排放。由产品是钢渣，废渣和汽车拆解的残留物，从城市焚烧炉发电厂和底部灰烬的粉煤灰。在Vitkovice Steelworks（OSTrava CZ）和11个活动中均采用先导工厂。已经评估了该过程的可行性和各种产品的适用性。矿物质和金属产品已完全表征。所有矿物样品均在化学和矿物学分析并提交磨削试验，反应性试验，可浸润性试验，可溶性铬评价。所有这些测试表明，从ZEWA过程中获得的合成渣没有从工业造粒高炉渣的根本上不同，并且在从官员获得技术协议后，它们的使用似乎没有技术障碍物作为波特兰水泥熟料。研究所。

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