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| Research progress of biochar immobilized microorganism in soil pollution remediation |
| Received:November 15, 2022 Revised:December 06, 2022 |
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| KeyWord:biochar;microorganism;immobilization;soil remediation |
| Author Name | Affiliation | E-mail | | DU Zhaolin | Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China | | | CHEN Hong'an | Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China | | | YAO Yanpo | Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China | yao7707@126.com | | AN Yi | Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China | anyi@aepi.org.cn |
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| Abstract: |
| The biochar immobilized microorganism technology is a highly efficient, low cost, and environmentally friendly technology. As it demonstrates great potential in soil remediation application, it has drawn tremendous research interest. This study systematically summarized the latest research progress of biochar immobilized microbial technology for remediation of contaminated soil in China and abroad. Based on this, the suitability of biochar as a carrier was analyzed, importance of microbial screening was discussed and comparative analysis of immobilization methods（such as adsorption, embedding, crosslinking, and covalent binding, among others）was carried out. Following this, the effects of different environmental factors on soil remediation performance by biochar immobilized microbial technology were investigated. The synergistic effect of multiple mechanisms of biochar and microbial remediation towards heavy metals and organic pollutants in soil was thus revealed. The mechanisms included the protection and rapid colonization of microorganisms by biochar as the immobilized carrier, the adsorption of pollutants by biochar, and the degradation of pollutants by microorganisms. Finally, the study put forward prospects and suggestions for the application of biochar immobilization microbial technology in soil pollution remediation. |
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