Breaking critical barriers in soil formation of bauxite residues

传统的铝土矿残渣修复方法需要昂贵且不可持续的表层覆盖。在生态工程尾矿转化为土壤的最新突破的基础上，该项目旨在开发一种基于现场的技术，利用海洋微生物和盐生植物在现场条件下加速铝土矿残渣(包括海水中和铝土矿残渣)的就地土壤形成。这项技术将通过了解海洋微生物联盟和生态工程投入在加速铝土矿残渣的关键矿物学、地球化学、物理和生物变化方面的作用而得到支持。这项技术预计将在澳大利亚的其他氧化铝精炼厂之间进行转移和改造。

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.