维普中文期刊产品整合服务

Two-step calculation method to enable the ecological and human health risk assessment of remediated soil treated through thermal curing

查看全文 作　　者：Shaowen [1,2]Xie;Fei [2]Wu;Zengping [3]Ning;Manjia [2]Chen;Chengshuai [2,3]Liu;Qiang [5]Huang;Fangyuan [3,4]Meng;Yuhui [3,4]Liu;Jimei [3,4]Zhou;Yafei [3,4]Xia 高影响力作者 机构地区：[1]School of Environmental and Chemical Engineering,Foshan University,Foshan 528000,China;[2]National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China,Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management,Institute of Eco-environmental and Soil Sciences,Guangdong Academy of Sciences,Guangzhou 510650,China;[3]State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550081,China;[4]University of Chinese Academy of Sciences,Beijing 100049,China;[5]School of Food Science and Engineering,Foshan University,Foshan 528000,China高影响力机构 出　　处：《Soil Ecology Letters》索引2021年第3卷第3期,共13页高影响力期刊 基　　金：the National Key Research and Development Program of China(2018YFC-1801402);GDAS’Project of Science and Technology Development(2020GDASYL-20200103083 and 2020GDASYL-20200301003). 摘　　要：The centralized utilization of heavy-metal-contaminated soil has become the main strategy to remediate brownfield-site pollution.However,few studies have evaluated the ecological and human health risks of reusing these remediated soils.Considering Zn as the target metal,systematic pHdependent leaching and the Community Bureau of Reference(BCR)extraction were conducted at six pH values(pH=2,4,6,8,10,12)for the remediated soil treated through thermal curing.The pHdependent leaching results showed that with the formation of ZnCr2O4 spinel phases,the remediated soil exhibited strong inherent resistance to acidic attack over longer leaching periods.Furthermore,the BCR extraction results showed that the leaching agent pH value mainly affected the acid-soluble fraction content.Moreover,a strong complementary relationship was noted between the leaching and acid-soluble fraction contents,indicating that the sum of these two parameters is representative of the remediated soil risk value.Therefore,we proposed a two-step calculation method to determine the sum of the two heavy metal parameters as the risk value of remediated soil.In contrast to the traditional one-step calculation method,which only uses the leaching content as the risk value,this two-step calculation method can effectively avoid underestimating the risk of remediated soil. 关 键 词：Remediated soil Heavy metal Leaching agent pH value Fraction distribution Ecological and human health risk
相关文献

参考文献(57)

引证文献(1)

耦合文献(9)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费