A Comparative Study of Ferric Nitrate and Citric Acid in Washing Heavy Metal-Contaminated Soil

被引:8
作者
Guo, Zhihong [1 ,2 ]
Zhang, Shuqin [1 ,2 ]
Ren, Dajun [1 ,2 ]
Zhang, Xiaoqing [1 ,2 ]
Liu, Shuang [1 ,2 ]
Pan, Zhiqiang [1 ,2 ]
Wang, Sha [1 ,2 ]
机构
[1] Wuhan Univ Sci & Technol, Coll Resources & Environm Engn, 947 Heping Ave, Wuhan 430081, Hubei, Peoples R China
[2] Wuhan Univ Sci & Technol, Hubei Key Lab Efficient Utilizat & Agglomerat Met, Wuhan, Peoples R China
关键词
Er index; soil properties; soil washing; washing mechanism; ZERO-VALENT IRON; REMOVAL; EDTA; SLUDGE; PB; REMEDIATION; COMBINATION; EXTRACTION; CHELATORS; ELEMENTS;
D O I
10.1089/ees.2020.0356
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The key to reducing the environmental and human health hazards of heavy metals is to choose proper washing agents to remediate heavy metal-contaminated soil. In this study, ferric nitrate and citric acid (CA) were used to remove Cu, Zn, Pb, and Cd from contaminated soil. The effects of concentration, liquid-solid ratio, and time of the washing processes were investigated. Besides, the effects of ferric nitrate or CA on soil fertility and the potential ecological risk of heavy metals after soil washing were also studied. In ferric nitrate remediation, the optimal removal efficiencies of Cu, Zn, Pb, and Cd were 78.68%, 58.96%, 48.53%, and 80.86%, respectively. On the contrary, in CA remediation, the optimal removal efficiencies of Cu, Zn, Pb, and Cd were 66.59%, 43.10%, 37.95%, and 77.48%, respectively. The washing with both ferric nitrate and CA significantly reduced the potential ecological risk of heavy metals in the soil, whereas ferric nitrate showed better performance in lowering the metal risks than CA. Soil properties had been improved to some extent, including invertase activity, acid phosphatase activity, available phosphorus, and available nitrogen. The washing results showed that ferric nitrate exhibited better performance than CA. This study suggests that ferric nitrate can be considered a suitable agent for washing soil contaminated by heavy metals.
引用
收藏
页码:764 / 776
页数:13
相关论文
共 34 条
  • [1] The copper carbonyl complexes revisited: Why are the infrared spectra and structures of copper mono and dicarbonyl so different?
    Alikhani, Mohammad Esmail
    Manceron, Laurent
    [J]. JOURNAL OF MOLECULAR SPECTROSCOPY, 2015, 310 : 32 - 38
  • [2] [Anonymous], 2018, GB15618 MIN EC ENV P
  • [3] Combined application of EDDS and EDTA for removal of potentially toxic elements under multiple soil washing schemes
    Beiyuan, Jingzi
    Tsang, Daniel C. W.
    Valix, Marjorie
    Baek, Kitae
    Ok, Yong Sik
    Zhang, Weihua
    Bolan, Nanthi S.
    Rinklebe, Jorg
    Li, Xiang-Dong
    [J]. CHEMOSPHERE, 2018, 205 : 178 - 187
  • [4] Fate of arsenic before and after chemical-enhanced washing of an arsenic-containing soil in Hong Kong
    Beiyuan, Jingzi
    Li, Jiang-Shan
    Tsang, Daniel C. W.
    Wang, Lei
    Poon, Chi Sun
    Li, Xiang-Dong
    Fendorf, Scott
    [J]. SCIENCE OF THE TOTAL ENVIRONMENT, 2017, 599 : 679 - 688
  • [5] Feasibility of nanoscale zero-valent iron to enhance the removal efficiencies of heavy metals from polluted soils by organic acids
    Cao, Yaru
    Zhang, Shirong
    Zhong, Qinmei
    Wang, Guiyin
    Xu, Xiaoxun
    Li, Ting
    Wang, Lilin
    Jia, Yongxia
    Li, Yun
    [J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, 2018, 162 : 464 - 473
  • [6] Reveal the response of enzyme activities to heavy metals through in situ zymography
    Duan, Chengjiao
    Fang, Linchuan
    Yang, Congli
    Chen, Weibin
    Cui, Yongxing
    Li, Shiqing
    [J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, 2018, 156 : 106 - 115
  • [7] Removal of lead, zinc and cadmium from contaminated soils with two plant extracts: Mechanism and potential risks
    Feng, Can
    Chen, Yue
    Zhang, Shirong
    Wang, Guiyin
    Zhong, Qinmei
    Zhou, Wei
    Xu, Xiaoxun
    Li, Ting
    [J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, 2020, 187
  • [8] Soil washing remediation of heavy metal from contaminated soil with EDTMP and PAA: Properties, optimization, and risk assessment
    Feng, Weijin
    Zhang, Shirong
    Zhong, Qinmei
    Wang, Guiyin
    Pan, Xiaomei
    Xu, Xiaoxun
    Zhou, Wei
    Li, Ting
    Luo, Ling
    Zhang, Yanzong
    [J]. JOURNAL OF HAZARDOUS MATERIALS, 2020, 381
  • [9] Effects of Permeable Reactive Composite Electrodes on Hexavalent Chromium in the Electrokinetic Remediation of Contaminated Soil
    Fu, Rong-Bing
    Liu, Fang
    Zhang, Chang-Bo
    Ma, Jin
    [J]. ENVIRONMENTAL ENGINEERING SCIENCE, 2013, 30 (01) : 17 - 22
  • [10] Effect of mixed chelators of EDTA, GLDA, and citric acid on bioavailability of residual heavy metals in soils and soil properties
    Guo, Xiaofang
    Zhao, Guohui
    Zhang, Guixiang
    He, Qiusheng
    Wei, Zebin
    Zheng, Wei
    Qian, Tianwei
    Wu, Qitang
    [J]. CHEMOSPHERE, 2018, 209 : 776 - 782