文献类型： 外文期刊
作者： Zhang, Fangyu 1 ; Su, Baokun 1 ; Liao, Shangqiang 2 ;
作者机构： 1.Qingdao Agr Univ, Sch Resources & Environm, Qingdao Engn Res Ctr Rural Environm, Qingdao 266109, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Inst Plant Nutr Resources & Environm, Beijing 100097, Peoples R China
关键词： Biochar; Graphene-modified biochar; Cadmium (Cd); Lead (Pb); Soil remediation; Plant uptake
期刊名称：FRESENIUS ENVIRONMENTAL BULLETIN （ 影响因子：0.618； 五年影响因子：0.583 ）
ISSN： 1018-4619
年卷期： 2022 年 31 卷 10 期
页码：
收录情况： SCI
摘要： The biochar addition to heavy metals-contaminated soil can increase the soil adsorption capacity of heavy metals and thereby decreasing plant heavy metals uptake. In this study, graphene-modified and unmodified rice straw biochar were added to Cd- and Pb-contaminated soil to reduce the peanut heavy metals accumulation. The results showed that compared with the control, the Pb and Cd content and the enrichment factor in peanuts were significantly reduced by the addition of the two biochar. The modified biochar performed better than rice straw biochar. The accumulation of Cd and Pb in the underground part for alkaline soil was reduced by 59.8% and 64.3%, respectively, while those for neutral soil by 58.7% and 53.3%, respectively. The research recommends the graphene-modified rice straw biochar for the neutral and alkaline soil remediation with Cd- and Pb-combined pollution at a level of 0.5%.
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