In-Situ Remediation of Cadmium and Atrazine Contaminated Acid Red Soil of South China Using Sepiolite and Biochar

  • Xu Qin
  • Yetong Liu
  • Qingqing Huang
  • Yiyun Liu
  • Lijie Zhao
  • Yingming XuEmail author


The in-situ immobilization effect of sepiolite and biochar on the compound pollution of cadmium (Cd) and atrazine in acid red soil of south China was studied. Results showed that in a certain concentration range, sepiolite and biochar can improve the germination rate, ensure normal growth and increase biomass of pakchoi, reduce the content of Cd in edible parts of pakchoi in different degrees and meet international standards, and restrain absorption of atrazine in pakchoi completely. Sepiolite was more effective than biochar for the immobilization of Cd, while biochar was more effective than sepiolite for the immobilization of atrazine. Combined application of sepiolite and biochar in soil contaminated by Cd and atrazine was better than individual applications of sepiolite or biochar. The remediation method applied in this research can effectively repair the acid red soil with combined pollution of Cd and atrazine in south China, while also providing ideas for in-situ remediation of farmland soil with combined pollution of pesticides and metals.


Compound pollution In-situ immobilization Sepiolite Biochar Pakchoi 



This study was supported by the Transformation and Popularization Project of Agricultural Scientific and Technological Achievements of Tianjin, China (Project Number: 201502290). We thank Janani Sargunam for his linguistic assistance during the preparation of this manuscript.


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Xu Qin
    • 1
  • Yetong Liu
    • 2
  • Qingqing Huang
    • 1
  • Yiyun Liu
    • 1
  • Lijie Zhao
    • 1
  • Yingming Xu
    • 1
    Email author
  1. 1.Innovation Team of Remediation for Heavy Metal Contaminated Farmland of Chinese Institute of Agricultural Sciences, Agro-Environmental Protection InstituteMinistry of AgricultureTianjinChina
  2. 2.Tianjin Institute of Agricultural Quality Standard and Testing Technology ResearchTianjinChina

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