Results 71 to 80 of about 8,502 (265)
Deep Underground Science and Engineering, EarlyView.The permeability variation of rocks during complete stress–strain processes was investigated. A mathematical model describing the influence of rock damage on permeability was constructed. The permeability–stress relationship between soft rock and hard rock was proposed.
Zhen Huang +6 more
wiley +1 more source
A framework for capturing indirect impacts in site‐level screening for biodiversity risks
Methods in Ecology and Evolution, EarlyView.Abstract Site‐based industrial operations such as mining, oil and gas extraction and renewable energy development are associated with many direct and indirect impacts on biodiversity. Consideration of the full range of these impacts when selecting a buffer distance to approximate the Area of Influence (AoI) of a project is critical for effective ...
Divya Narain +6 more
wiley +1 more source
Enhanced Aluminium Extraction from Gibbsitic Bauxite by Electroreduction in the Bayer Process
MetalsThe Bayer process is used to extract alumina from bauxite, resulting in the formation of a highly alkaline solid residue known as bauxite residue (BR). However, such residue contains insufficient iron (
Andrei Shoppert +2 more
doaj +1 more source
Preliminary Characterization of Three Metallurgical Bauxite Residue Samples
Materials Proceedings, 2021 Bauxite Metallurgical Residue (BR) is a highly alkaline and very fine-grained by-product of the Bayer process for alumina production. Its huge global annual production has resulted in increasing accumulation of BR, causing deposition problems and serious
Panagiotis Angelopoulos +11 more
doaj +1 more source
Conceptualizing and contextualizing “large‐scale” and “scaling‐up” ecological restoration
Restoration Ecology, EarlyView.Current restoration efforts are lagging behind the extent and pace of environmental degradation. This emphasizes the need and urgency to scale up ecological restoration. This study sought to understand the context of “large‐scale” and “scaling‐up” ecological restoration, that is, what it means, entails, where, and how it is implemented by ...
Duduzile K. Ngwenya +3 more
wiley +1 more source
Rare Earths and the Balance Problem: How to Deal with Changing Markets? [PDF]
, 2018 The balance between the market demand and the natural abundance of the rare-earth elements (REEs) in ores, often referred to as the Balance Problem (or the Balancing Problem), is a major issue for REE suppliers.
Binnemans, Koen +3 more
core +2 more sources
5 years leaching experiments to evaluate a modified bauxite residue. Part 2: Remediation of sulfidic mine tailings [PDF]
, 2023 Patricia Merdy +3 more
openalex +1 more source
Limited contribution by non‐volant small mammals to regeneration in ironstone rocky outcrops
Restoration Ecology, EarlyView.Abstract Introduction Animal‐mediated seed dispersal contributes substantially to natural regeneration in degraded areas. However, the role of seed dispersal by non‐volant small mammals (NVSM), mainly marsupials and rodents, in contributing to regeneration remains underexplored, especially in mountaintop, open‐canopy ecosystems.
Maria Fernanda Regiolli Godoi +3 more
wiley +1 more source
Bauxite Residue: A viable filler for asphalt mix
Građevinar, 2022 Bauxite residue or red mud is used as surrogate filler for stone dust in asphalt concrete mixes. Asphalt mixes with both fillers were designed and strength, volumetric properties, and performance against various distresses (rutting, cracking, long-term ...
Jayvant Choudhary +2 more
doaj +1 more source
High Temperature Treatment of Selected Iron Rich Bauxite Ores to Produce Calcium Aluminate Slags
Materials Proceedings, 2021 The Pedersen process is a method to produce alumina from Al-containing sources, and it is a more material-efficient method than the current commercial Bayer process, since the formation of bauxite residue (red mud) is avoided, and the bauxite can be ...
Adamantia Lazou +7 more
doaj +1 more source