为探究底泥修复领域未来研究方向,利用CiteSpace文献计量工具,以Web of Science数据库和知网中收录的期刊作为数据来源,对2000~2022年底泥修复研究领域的相关文献进行分析。底泥修复领域发文数量整体呈现逐年上升的趋势。关键词突现词...为探究底泥修复领域未来研究方向,利用CiteSpace文献计量工具,以Web of Science数据库和知网中收录的期刊作为数据来源,对2000~2022年底泥修复研究领域的相关文献进行分析。底泥修复领域发文数量整体呈现逐年上升的趋势。关键词突现词分析和关键词聚类分析结果表明当前底泥修复的目标是削减与去除水体和底泥中重金属、氮、磷和多环芳烃;底泥修复的手段主要是以生物修复和材料修复为代表的原位修复技术。中外文献被引频次分析结果可知,近20年来生物修复技术一直是底泥修复领域研究的重点。原位修复技术在底泥修复领域极具应用前景,微生物-植物联合修复、生物炭材料修复、硝酸钙和过氧化钙修复作为行之有效的原位修复手段备受学者青睐。展开更多
Biochar is a carbon-neutral or even carbon-negative material produced through thermal decomposition of plant-and animal-based biomass under oxygen-limited conditions.Recently, there has been an increasing interest in ...Biochar is a carbon-neutral or even carbon-negative material produced through thermal decomposition of plant-and animal-based biomass under oxygen-limited conditions.Recently, there has been an increasing interest in the application of biochar as an adsorbent, soil ameliorant and climate mitigation approach in many types of applications.Metal-contaminated soil remediation using biochar has been intensively investigated in small-scale and pilot-scale trials with obtained beneficial results and multifaceted effects.But so far, the study and application of biochar in contaminated sediment management has been very limited, and this is also a worldwide problem. Nonetheless, there is reason to believe that the same multiple benefits can also be realized with these sediments due to similar mechanisms for stabilizing contaminants. This paper provides a review on current biochar properties and its use as a sorbent/amendment for metal-contaminated soil/sediment remediation and its effect on plant growth, fauna habits as well as microorganism communities. In addition, the use of biochar as a potential strategy for contaminated sediment management is also discussed, especially as regards in-situ planning. Finally, we highlight the possibility of biochar application as an effective amendment and propose further research directions to ensure the safe and sustainable use of biochar as an amendment for remediation of contaminated soil and sediment.展开更多
文摘为探究底泥修复领域未来研究方向,利用CiteSpace文献计量工具,以Web of Science数据库和知网中收录的期刊作为数据来源,对2000~2022年底泥修复研究领域的相关文献进行分析。底泥修复领域发文数量整体呈现逐年上升的趋势。关键词突现词分析和关键词聚类分析结果表明当前底泥修复的目标是削减与去除水体和底泥中重金属、氮、磷和多环芳烃;底泥修复的手段主要是以生物修复和材料修复为代表的原位修复技术。中外文献被引频次分析结果可知,近20年来生物修复技术一直是底泥修复领域研究的重点。原位修复技术在底泥修复领域极具应用前景,微生物-植物联合修复、生物炭材料修复、硝酸钙和过氧化钙修复作为行之有效的原位修复手段备受学者青睐。
基金supported by the Science and Technology Project of Beijing (No. D161100000216001)the Fundamental Research Funds for the Central University (No. 2014KJJCB23)the Youth Scholars Program of Beijing Normal University (No. 2014NT32)
文摘Biochar is a carbon-neutral or even carbon-negative material produced through thermal decomposition of plant-and animal-based biomass under oxygen-limited conditions.Recently, there has been an increasing interest in the application of biochar as an adsorbent, soil ameliorant and climate mitigation approach in many types of applications.Metal-contaminated soil remediation using biochar has been intensively investigated in small-scale and pilot-scale trials with obtained beneficial results and multifaceted effects.But so far, the study and application of biochar in contaminated sediment management has been very limited, and this is also a worldwide problem. Nonetheless, there is reason to believe that the same multiple benefits can also be realized with these sediments due to similar mechanisms for stabilizing contaminants. This paper provides a review on current biochar properties and its use as a sorbent/amendment for metal-contaminated soil/sediment remediation and its effect on plant growth, fauna habits as well as microorganism communities. In addition, the use of biochar as a potential strategy for contaminated sediment management is also discussed, especially as regards in-situ planning. Finally, we highlight the possibility of biochar application as an effective amendment and propose further research directions to ensure the safe and sustainable use of biochar as an amendment for remediation of contaminated soil and sediment.
