| 生物炭-凹凸棒土复合材料对水稻土锌镉的钝化及土壤养分和酶活性的影响研究 |
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| 引用本文： | 尤凌聪,汪玉瑛,刘玉学,吕豪豪,陈金媛,杨生茂. 生物炭-凹凸棒土复合材料对水稻土锌镉的钝化及土壤养分和酶活性的影响研究[J]. 核农学报, 2021, 35(7): 1717-1723. DOI: 10.11869/j.issn.100-8551.2021.07.1717 |
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| 作者姓名： | 尤凌聪 汪玉瑛 刘玉学 吕豪豪 陈金媛 杨生茂 |
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| 作者单位： | 浙江工业大学环境学院,浙江杭州310000;浙江省生物炭工程技术研究中心,浙江杭州310021;浙江省农业科学院环境资源与土壤肥料研究所,浙江杭州310021;浙江省生物炭工程技术研究中心,浙江杭州310021;浙江工业大学环境学院,浙江杭州310000 |
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| 基金项目： | 浙江省科技厅省级重点研发计划(2019C02045) |
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| 摘 要： | 为了比较生物炭、凹凸棒土以及生物炭-凹凸棒土复合材料3种钝化剂对锌镉复合污染水稻土的钝化修复效果,本研究利用傅立叶红外光谱(FT-IR)、X射线衍射(XRD)、比表面积表征(BET)和扫描电镜(SEM)等技术手段对稻壳生物炭和凹凸棒土样品进行表征,并采用土培试验研究稻壳生物炭、凹凸棒土及生物炭-凹凸棒土复合材料对实际重...
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| 关 键 词： | 稻壳生物炭 凹凸棒土 土壤修复 锌 镉 |
| 收稿时间： | 2020-06-01 |
Effects of Biochar-Attapulgite Composite on Zinc and Cadmium Passivation of Paddy Soil and Soil Nutrient and Enzyme Activities |
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| YOU Lingcong,WANG Yuying,LIU Yuxue,LYU Haohao,CHEN Jinyuan,YANG Shengmao. Effects of Biochar-Attapulgite Composite on Zinc and Cadmium Passivation of Paddy Soil and Soil Nutrient and Enzyme Activities[J]. Acta Agriculturae Nucleatae Sinica, 2021, 35(7): 1717-1723. DOI: 10.11869/j.issn.100-8551.2021.07.1717 |
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| Authors: | YOU Lingcong WANG Yuying LIU Yuxue LYU Haohao CHEN Jinyuan YANG Shengmao |
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| Affiliation: | 1College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310000; 2Institute of Environmental Resources and Soil Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang 310021; 3Zhejiang Biochar Engineering Technology Research Center, Hangzhou, Zhejiang 310021 |
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| Abstract: | In order to compare the remediation effect of biochar, attapulgite and attapulgite-biochar composite. FTIR, XRD, BET and SEM were used to characterize rice husk biochar and attapulgite samples, and soil incubation experiments were conducted to study the effects of rice husk biochar, attapulgite and attapulgite-biochar composites on the passivation effect and physicochemical properties of Zinc and Cadmium contaminated soil. The incubation results showed that these three passivation agents reduced the bioavailability of Cd and Zn, meanwhile improved the soil properties to varying degrees. Zn content was reduced by 86% and 51%, and Cd content was reduced by 25% and 8% for the treatment of 2.0% attapulgite and 2.0% biochar, respectively. The availabe content of Zn and Cd in the soil was reduced by 83% and 23%, respectively, the soil pH was increased to 5.8, and the organic carbon content increased by 39%. after the application of 2.0% biochar-attapulgite composite. Compared with individual applications of attapulgite and biochar, rice husk biochar-attapulgite composite could efficiently immobilize Cd and Zn, and improve physicochemical properties in Zinc and Cadmium contaminated paddy-growing soil. Therefore, attapulgite-biochar composite could be a potential new passivation agent for soil remediation providing some new ideas for soil heavy metal remediation. |
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| Keywords: | rice husk biochar attapulgite soil remediation zinc cadmium |
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