A study of the curing rate and stability of heavy metal chromium contaminated soil at electroplating sites

WANG Luyan; LIU Ganbin; ZHOU Ye; CHEN Hang; CHEN Bin

doi:10.16030/j.cnki.issn.1000-3665.202109004

2022 Vol. 49, No. 4

Article Contents

Article navigation > Hydrogeology & Engineering Geology > 2022 > 49(4): 183-189

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WANG Luyan, LIU Ganbin, ZHOU Ye, CHEN Hang, CHEN Bin. A study of the curing rate and stability of heavy metal chromium contaminated soil at electroplating sites[J]. Hydrogeology & Engineering Geology, 2022, 49(4): 183-189. doi: 10.16030/j.cnki.issn.1000-3665.202109004

Citation:

WANG Luyan, LIU Ganbin, ZHOU Ye, CHEN Hang, CHEN Bin. A study of the curing rate and stability of heavy metal chromium contaminated soil at electroplating sites[J]. Hydrogeology & Engineering Geology, 2022, 49(4): 183-189. doi: 10.16030/j.cnki.issn.1000-3665.202109004

A study of the curing rate and stability of heavy metal chromium contaminated soil at electroplating sites

1.
School of Civil and Environmental Engineering，Ningbo Unversity, Ningbo, Zhejiang　315211， China
2.
School of Building and Transporing，Ningbo Unversity of Technology, Ningbo, Zhejiang　315211， China

More Information

Corresponding author: CHEN Bin, 79967135@qq.com

Received Date: 02 September 2021

Revised Date: 21 October 2021

Publish Date: 25 July 2022

Abstract

Abstract

In order to solve the problem of heavy metal pollution at electroplating sites in Ningbo, toxic characteristic leaching procedure, unconfined compressive strength test, long-term stability test under dynamic load and scanning electron microscope test of chromium-contaminated soil were carried out by using self-formulated curing agent. On this basis, the change patterns of the mechanical properties and leaching characteristics of the cured soil with the maintenance age, curing agent dosing, curing agent ratio and heavy metal contamination level are analyzed. The results show that the curing rate of chromium-contaminated soil with self-formulated curing agents is more than 85%, and curing rate increases with the amount of curing agent, decreases with the concentration of chromium, and increases with the age of maintenance and then decreases. The curing rate and unconfined compressive strength of the cured soil after 28, 90 d curing compared with those before the application of dynamic load show a small decrease, but the influence pattern of each factor remained the same. The self-formulated curing agents have a good curing effect on chromium. This research may provide theoretical support for curing and remediation of contaminated electroplating sites based on the analysis of the variation pattern of each factor variable.
- heavy metal; chromium /
- unconfined compressive strength /
- toxicity leaching test /
- microscopic analysis

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References

[1]	尚会来, 张雷, 张静蓉. 电镀废水处理技术展望[J]. 给水排水,2012,48(增刊 1):260 − 263. [SHANG Huilai, ZHANG Lei, ZHANG Jingrong. Prospect of electroplating wastewater treatment technology[J]. Water & Wastewater Engineering,2012,48(Sup 1):260 − 263. (in Chinese) Google Scholar SHANG Huilai, ZHANG Lei, ZHANG Jingrong. Prospect of electroplating wastewater treatment technology [J]. Water & Wastewater Engineering, 2012, 48(Sup 1): 260-263. (in Chinese) Google Scholar
[2]	YU Y, WANG H, HU J H. Co-treatment of electroplating sludge, copper slag, and spent cathode carbon for recovering and solidifying heavy metals[J]. Journal of Hazardous Materials,2021,417:126020. doi: 10.1016/j.jhazmat.2021.126020 CrossRef Google Scholar
[3]	杜延军, 金飞, 刘松玉, 等. 重金属工业污染场地固化/稳定处理研究进展[J]. 岩土力学,2011,32(1):116 − 124. [DU Yanjun, JIN Fei, LIU Songyu, et al. Review of stabilization/solidification technique for remediation of heavy metals contaminated lands[J]. Rock and Soil Mechanics,2011,32(1):116 − 124. (in Chinese with English abstract) doi: 10.3969/j.issn.1000-7598.2011.01.019 CrossRef Google Scholar DU Yanjun, JIN Fei, LIU Songyu, et al. Review of stabilization/solidification technique for remediation of heavy metals contaminated lands[J]. Rock and Soil Mechanics, 2011, 32(1): 116-124. (in Chinese with English abstract) doi: 10.3969/j.issn.1000-7598.2011.01.019 CrossRef Google Scholar
[4]	全国土壤污染状况调查公报[J]. 中国环保产业, 2014（5）: 10 − 11 Google Scholar The Report on the national general survey of soil contamination[J]. China Environmental Protection Industry, 2014（5）: 10 − 11. （in Chinese） Google Scholar
[5]	李嘉蕊. 基于土壤-作物-人体系统的耕地重金属污染评价和健康风险评估[D]. 杭州: 浙江大学, 2019 Google Scholar LI Jiarui. Heavy metal pollution assessment and health risk assessment of cultivated land based on soil-crop-human system[D]. Hangzhou: Zhejiang University, 2019. （in Chinese with English abstract） Google Scholar
[6]	张显军, 胡悦, 朱超. 土壤重金属污染治理的化学固化研究进展[J]. 资源节约与环保,2021(5):21 − 22. [ZHANG Xianjun, HU Yue, ZHU Chao. Research progress in chemical solidification of soil heavy metal pollution control[J]. Resources Economization & Environmental Protection,2021(5):21 − 22. (in Chinese) doi: 10.3969/j.issn.1673-2251.2021.05.020 CrossRef Google Scholar ZHANG Xianjun, HU Yue, ZHU Chao. Research progress in chemical solidification of soil heavy metal pollution control [J]. Resources Economization & Environmental Protection, 2021(5): 21-22. (in Chinese) doi: 10.3969/j.issn.1673-2251.2021.05.020 CrossRef Google Scholar
[7]	李相国, 何超, 吕阳, 等. 铝酸三钙(C₃A)稳定/固化重金属Cr[J]. 武汉理工大学学报,2013,35(4):1 − 5. [LI Xiangguo, HE Chao, LV Yang, et al. Stabilization/solidification of heavy metal Cr using tricalcium aluminate (C₃A)[J]. Journal of Wuhan University of Technology,2013,35(4):1 − 5. (in Chinese with English abstract) doi: 10.3963/j.issn.1671-4431.2013.04.001 CrossRef Google Scholar LI Xiangguo, HE Chao, LV Yang, et al. Stabilization/solidification of heavy metal Cr using tricalcium aluminate(C₃A)[J]. Journal of Wuhan University of Technology, 2013, 35(4): 1-5. (in Chinese with English abstract) doi: 10.3963/j.issn.1671-4431.2013.04.001 CrossRef Google Scholar
[8]	张蕊. 六价铬在土壤中迁移转化影响因素研究及风险评价[D]. 长春: 吉林大学, 2013 Google Scholar ZHANG Rui. Influence factors of migration and transformation characters of Cr(Ⅵ) in soil and risk assessment[D]. Changchun: Jilin University, 2013. （in Chinese with English abstract） Google Scholar
[9]	杨瑞枝, 连海波, 李晓军, 等. 固化/稳定化重金属污染土力学及浸出特性试验研究[J]. 科学技术与工程,2020,20(16):6672 − 6677. [YANG Ruizhi, LIAN Haibo, LI Xiaojun, et al. Experimental study on mechanical properties and leaching characteristics of solidification/stabilization heavy metal contaminated soil[J]. Science Technology and Engineering,2020,20(16):6672 − 6677. (in Chinese with English abstract) doi: 10.3969/j.issn.1671-1815.2020.16.056 CrossRef Google Scholar YANG Ruizhi, LIAN Haibo, LI Xiaojun, et al. Experimental study on mechanical properties and leaching characteristics of solidification/stabilization heavy metal contaminated soil[J]. Science Technology and Engineering, 2020, 20(16): 6672-6677. (in Chinese with English abstract) doi: 10.3969/j.issn.1671-1815.2020.16.056 CrossRef Google Scholar
[10]	王菲, 徐汪祺. 固化/稳定化和软土加固污染土的强度和浸出特性研究[J]. 岩土工程学报,2020,42(10):1955 − 1961. [WANG Fei, XU Wangqi. Strength and leaching performances of stabilized/solidified (S/S) and ground improved (GI) contaminated site soils[J]. Chinese Journal of Geotechnical Engineering,2020,42(10):1955 − 1961. (in Chinese with English abstract) Google Scholar WANG Fei, XU Wangqi. Strength and leaching performances of stabilized/solidified(S/S) and ground improved(GI) contaminated site soils[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(10): 1955-1961. (in Chinese with English abstract) Google Scholar
[11]	刘锋, 王琪, 黄启飞, 等. 固体废物浸出毒性浸出方法标准研究[J]. 环境科学研究,2008,21(6):9 − 15. [LIU Feng, WANG Qi, HUANG Qifei, et al. Study on the standard methods of leaching toxicity of solid waste[J]. Research of Environmental Sciences,2008,21(6):9 − 15. (in Chinese with English abstract) Google Scholar LIU Feng, WANG Qi, HUANG Qifei, et al. Study on the standard methods of leaching toxicity of solid waste[J]. Research of Environmental Sciences, 2008, 21(6): 9-15. (in Chinese with English abstract) Google Scholar
[12]	孙叶芳, 谢正苗, 徐建明, 等. TCLP法评价矿区土壤重金属的生态环境风险[J]. 环境科学,2005,26(3):152 − 156. [SUN Yefang, XIE Zhengmiao, XU Jianming, et al. Assessment of toxicity of heavy metal contaminated soils by toxicity characteristic leaching procedure[J]. Environmental Science,2005,26(3):152 − 156. (in Chinese with English abstract) doi: 10.3321/j.issn:0250-3301.2005.03.031 CrossRef Google Scholar SUN Yefang, XIE Zhengmiao, XU Jianming, et al. Assessment of toxicity of heavy metal contaminated soils by toxicity characteristic leaching procedure[J]. Environmental Science, 2005, 26(3): 152-156. (in Chinese with English abstract) doi: 10.3321/j.issn:0250-3301.2005.03.031 CrossRef Google Scholar
[13]	刘恒凤, 张吉雄, 周楠, 等. 矸石基胶结充填材料重金属浸出及其固化机制[J]. 中国矿业大学学报,2021,50(3):523 − 531. [LIU Hengfeng, ZHANG Jixiong, ZHOU Nan, et al. Study of the leaching and solidification mechanism of heavy metals from gangue-based cemented paste backfilling materials[J]. Journal of China University of Mining & Technology,2021,50(3):523 − 531. (in Chinese with English abstract) Google Scholar LIU Hengfeng, ZHANG Jixiong, ZHOU Nan, et al. Study of the leaching and solidification mechanism of heavy metals from gangue-based cemented paste backfilling materials[J]. Journal of China University of Mining & Technology, 2021, 50(3): 523-531. (in Chinese with English abstract) Google Scholar
[14]	SONG F Y, GU L, ZHU N W, et al. Leaching behavior of heavy metals from sewage sludge solidified by cement-based binders[J]. Chemosphere,2013,92(4):344 − 350. doi: 10.1016/j.chemosphere.2013.01.022 CrossRef Google Scholar
[15]	朱晶晶. 基于磷矿粉的固化剂稳定锌铅污染黏土的环境安全性及路用性能研究[D]. 江苏: 东南大学, 2014 Google Scholar Zhu Jingjing. Environmental safety and road performance of phosphate rock-based binder stabilized/solidified Zn and Pb contamination soil[D]. Jiangsu: Southeast University, 2014. （in Chinese with English abstract） Google Scholar
[16]	刘干斌, 范思婷, 叶俊能, 等. 温控动三轴试验装置的研制及应用[J]. 岩石力学与工程学报,2015,34(7):1345 − 1352. [LIU Ganbin, FAN Siting, YE Junneng, et al. Development and application of a temperaturecontrolled dynamic triaxial test system[J]. Chinese Journal of Rock Mechanics and Engineering,2015,34(7):1345 − 1352. (in Chinese with English abstract) Google Scholar LIU Ganbin, FAN Siting, YE Junneng, et al. Development and application of a temperaturecontrolled dynamic triaxial test system[J]. Chinese Journal of Rock Mechanics and Engineering, 2015, 34(7): 1345-1352. (in Chinese with English abstract) Google Scholar
[17]	中国工程建设标准化协会. 道路固化土应用技术规程: T/CECS 737—2020[S]. 北京: 中国计划出版社, 2020 Google Scholar China Engineering Construction Standardization Association. Technical specification for application of road solidified soil: T/CECS 737—2020[S]. Beijing: China Planning Press, 2020. （in Chinese） Google Scholar