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基于植物采矿的“绿色冶镍”研究进展

发布时间:2018-09-18 20:08
【摘要】:基于植物采矿的理念,利用镍超富集植物将低品位红土镍矿或镍污染土壤中的镍吸收并转运到植物的地上部分,而后将收获的镍超富集植物视为镍资源的二次来源,经由焚烧镍超富集植物获得w(镍)约20%的"高镍生物矿砂"。通过综述镍超富集植物吸收转运镍的机理、种植镍超富集植物的农艺调控研究,以及现有的从镍超富集植物或"高镍生物矿砂"中制备纯镍、易斯酸催化剂、六水硫酸镍铵以及镍纳米材料工艺技术等,展望今后可能的"绿色冶镍"研究方向。期望在使用镍超富集植物修复环境镍污染,降低环境中镍对人类和其它生物的潜在危害的同时,开发新型的"绿色冶镍"技术,缓解我国镍资源紧缺的重要问题。
[Abstract]:Based on the concept of plant-based mining, nickel from low-grade laterite nickel ores or nickel-contaminated soils is absorbed and transported to the aboveground part of the plant by nickel super-enrichment plants, which are then treated as secondary sources of nickel resources. About 20% of "high nickel biological ore" was obtained by incineration of nickel-enriched plants. By summarizing the mechanism of nickel absorption and transport by nickel superenrichment plants, the agronomic regulation of nickel superenrichment plants, and the preparation of pure nickel and easy acid catalysts from nickel superenriched plants or "high nickel biological ore sands", The technology of ammonium nickel sulfate hexahydrate and nickel nanomaterials are discussed, and the possible research direction of green nickel smelting in the future is prospected. It is expected that new "green nickel smelting" technology will be developed to alleviate the shortage of nickel resources in China, while using nickel super-enriched plants to remediate environmental nickel pollution and reduce the potential harm of nickel to human beings and other organisms in the environment.
【作者单位】: 河南师范大学环境学院∥黄淮水环境与污染防治教育部重点实验室∥河南省环境污染控制重点实验室;环境污染治理与生态修复河南省协同创新中心;中山大学环境科学与工程学院;
【基金】:国家自然科学基金(51604099) 河南省高等学校重点科研项目(17A610007) 环境污染治理与生态修复河南省协同创新中心开放性基金(XTCX-023) 河南师范大学博士后启动项目(5101219170109)
【分类号】:TD983;X173


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