工业固体废物释放重金属(以哈扎尔炼钢厂为例)

Zahra Zamiraei, M. Panahandeh, Habib Fathidokht
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引用次数: 0

摘要

关于工业固体废物中重金属释放的信息对于更可靠地管理其环境危害具有重要意义。本研究旨在探讨固体废物组织对炼钢厂重金属排放的影响。通过对桂兰哈扎尔炼钢厂的调查,分析了该厂废弃物的种类、来源、数量和质量。KSS厂产生的主要废物是炉渣、炉灰和废耐火材料。KSS固体废物中重金属含量不同,Mn、Cu、Zn、Ni、Cr、Co、Cd、Pb和As的含量分别为1500 ~ 2200、80 ~ 114、6172 ~ 11100、88 ~ 82、48 ~ 29、56 ~ 60、4 ~ 14、144 ~ 370和0.6 ~ 1.0 mg/kg−1。这些废物中铁的浓度很高(109900-672000 mg/kg−1)。结果证实,除砷外,其他重金属浓度较高。KSS粉尘和矿渣的TCLP结果显示,除Fe (524.5 ~ 187.6 mg/kg-1)和Mn (14 ~ 10.10 mg/kg-1)外,其余重金属浓度均低于检测限。结果表明,KSS厂产生的废弃物均可重复利用和回收利用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Heavy Metal Release from Industrial Solid Wastes (Case Study: Khazar Steel Smelting Plant)
Information about the heavy metals release from industrial solid wastes is important for more reliable management of their environmental hazards. This study was conducted to investigate the effect of tissue of solid waste on the release of heavy metals from the steel smelting plant. After the investigation at the Khazar steel smelting (KSS) plant in Guilan province, its waste type, source, quantity and quality were characterized. The major wastes generated from the KSS plant were characterized to be the slag, furnace dust, and spent refractories. KSS solid wastes contained heavy metals in varying amounts, with the ranges of 1500-2200, 80–114, 6172-11100, 88-82, 48-29, 56-60, 4-14, 144-370 and 0.9-1.0 mg/kg−1 for Mn, Cu, Zn, Ni, Cr, Co, Cd, Pb and As, respectively. The concentration of the iron was high in these wastes (109900-672000 mg/kg−1). The results confirmed the high concentration of heavy metals except for Arsenic. The TCLP results of the KSS dust and slag showed the almost all the heavy metals concentrations by the leaching test were lower than the detection limits except Fe (524.5-187.6 mg/kg-1) and Mn (14-10.10 mg/kg-1). According to the results, all the wastes generated by the KSS plant were reusable and recyclable.
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