Breaking critical barriers in soil formation of bauxite residues

打破铝土矿残渣土壤形成的关键障碍

• 批准号: LP190100975
• 负责人: Prof Dr Longbin Huang
• 金额: $ 56.04万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2020
• 资助国家: 澳大利亚
• 起止时间: 2020-12-17 至 2024-12-16
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP190100975
• 关键词: Breaking; critical; barriers; soil; formation

Conventional methods of bauxite residue rehabilitation require expensive and unsustainable covering topsoil. Building on recent breakthroughs in eco-engineering tailings into soil, the project aims to develop a field-based technology using marine microbes and halophytic plants to accelerate in-situ soil formation from bauxite residues (incl seawater neutralised bauxite residues) under field conditions. The technology will be underpinned by understanding the roles of marine microbe consortia and eco-engineering inputs in accelerating key mineralogical, geochemical, physical and biological changes in bauxite residues. This technology is expected to be transferable and adaptable across other alumina refineries in Australia.

铝土矿残渣复原的传统方法需要昂贵且不可持续的覆盖表土。基于最近在生态工程尾矿入土方面的突破，该项目旨在开发一种基于实地的技术，利用海洋微生物和盐生植物，在实地条件下加速铝土矿残渣（包括海水中和的铝土矿残渣）的原位土壤形成。该技术将通过了解海洋微生物联合体和生态工程投入在加速铝土矿残留物的关键矿物学，地球化学，物理和生物变化中的作用来支持。该技术有望在澳大利亚的其他氧化铝精炼厂推广和应用。