铬污染场地土壤修复中化学协同高温固化技术的应用研究  

Research on the Application of Chemical Cooperative High Temperature Curing Technology in Soil Remediation of Chromium Contaminated Sites

作　　者：苗进辉 Miao Jinhui(The Eighth Engineering(Hunan)Co.,Ltd.,Third Navigation Bureau of China Communications,Zhuzhou 412000,China)

机构地区：[1]中交三航局第八工程(湖南)有限公司,湖南株洲412000

出　　处：《皮革制作与环保科技》2023年第5期90-91,共2页Leather Manufacture and Environmental Technology

摘　　要：采用室内模拟实验的方法,以某铬污染场地为研究对象,选用硫酸亚铁、硫化钠和多硫化钙三种还原剂将六价铬还原为三价铬,然后利用稳定剂固化与高温固化的手段将铬元素固定在土壤中。重点探究不同修复手段下场地土壤重金属的浸出毒性及经济适用性,分析六价铬在不同修复方式下的毒性浸出特征,从而为铬污染场地土壤修复固化机理的探究提供理论依据。Using the method of indoor simulation experiment,taking a chromium contaminated site as the research object,three reducing agents,ferrous sulfate,sodium sulfate and calcium polysulfi de,were selected to reduce hexavalent chromium as trivalent chromium,and then the chromium element was fi xed in the soil by means of stabilizer curing and high temperature curing.Focus on exploring the leaching toxicity and economic applicability of heavy metals in the soil under different remediation methods,and analyze the toxic leaching characteristics of hexavalent chromium under different remediation methods,so as to provide a theoretical basis for the exploration of soil remediation and curing mechanism in chromium contaminated sites.

关 键 词：铬污染场地 土壤修复 化学还原 高温固化 

分 类 号：TS5[轻工技术与工程—皮革化学与工程]