HUBEI AGRICULTURAL SCIENCES ›› 2019, Vol. 58 ›› Issue (1): 10-14.doi: 10.14088/j.cnki.issn0439-8114.2019.01.002

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Advances in Remediation of Heavy Metal Contaminated Soils by in Situ Chemical Fixation

XU Hui-ting, ZHANG Wei-wen, SHEN Xu-yang, FU Ju-yang, CHEN Fei-fei, WANG Yan, YANG Meng, ZHAO Tong-he, ZHU Wei-qin   

  1. Key Laboratory of Hangzhou City for Ecosystem Protection and Restoration,Hangzhou Normal University,Hangzhou 310036,China
  • Received:2017-11-29 Online:2019-01-10 Published:2019-11-26

Abstract: In situ chemical immobilization remediation means that adding different allogenic materials to fix heavy metal element in soil, which is an important method to reduce the mobility and bioavailability of heavy metals. Now the passivating fixators used for in situ chemical immobilization present various types and distribute widely. There are inorganic passivators, organic passivators as well as organic- inorganic complexed passivators. The characteristics, immobilization mechanisms and remediation effects of different types of passivating fixators are summarized, the problems existing in the application process of various passivators and its development trend are analyzed at the same time, aiming to provide the reference for exploring some new multifunctional passivators.

Key words: heavy metal, in situ chemical immobilization remediation, passivators

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