结合国内外研究现状,对秸秆生物炭的制备原料、制备方法和改性途径进行了梳理,综述了秸秆生物炭对水体中有机染料、重金属离子、氮、磷、抗生素等污染物的吸附性能及吸附机理。针对现有研究中存在的不足,对生物炭结构和功能缺陷的改善、高稳定性和低生态风险生物炭的研制、高效低耗回收与再生、实际污水处理效能等未来研究方向进行了展望,以期为秸秆生物炭在污水处理领域的应用和发展提供有益参考。
The raw materials,preparation methods and modification pathways of straw biochar were sorted out in the light of the current research status at home and abroad.The adsorption performance and adsorption mechanism of straw biochar for organic dyes,heavy metal ions,nitrogen,phosphorus,antibiotics and other pollutants in water were reviewed.In view of the shortcomings in the existing research,future research directions such as improvement of the structure and functional defects of biochar,development of highly stable and low ecological risk biochar,efficient and low consumption recovery and regeneration,and actual wastewater treatment efficacy were discussed,with a view to providing useful references for the application and development of straw biochar in the field of wastewater treatment.
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基金资助
国家自然科学基金(21705133);国家环境保护水土污染协同控制与联合修复重点实验室开放基金项目(GHBK-2021-004);四川省科技计划项目(2022YFG0307,2022NSFSC0393)
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