Precious metal recycling technology in electronic waste: Progress, challenges, and sustainable development path
Available online 19 November 2025
To address resource waste and environmental pollution from electronic waste (e-waste), this study summarized the recycling technology for precious metals from e-waste based on bibliometrics and knowledge...
Machine-learning-assisted optimization of glutamate leaching followed by sulfide precipitation for base metal recovery from waste printed circuit boards
Available online 19 November 2025
Glutamic acid (or glutamate) is one of the most promising amino acids shown to recover base metals from e-waste in terms of cost, selectivity, and bulk availability. This study integrates machine learning...
Synthesis of porous SiO2 materials from steel slag for CO2 adsorption
Available online 17 November 2025
During carbon capture from steel slag, large amounts of calcium and magnesium are utilized, whereas silica is largely unutilized. In this study, porous SiO2 materials were synthesized from the silicon...
Comprehensive response analysis of stress wave propagation and energy dissipation of a cemented tailings backfill based on the relative dissipation factor
Available online 15 November 2025
The destruction of backfill under strong disturbances can be regarded as the result of stress waves propagating in the filling medium; however, accurately quantifying the stress wave attenuation and...
Study on the mechanism of permeability enhancement in coal beds fractured by HVEP: cross-scale transportation of CBM
Available online 14 November 2025
In this study, to investigate the mechanism through which high-voltage electrical pulses (HVEPs) enhance coal permeability and improve coalbed methane (CBM) extraction efficiency, liquid nitrogen adsorption...
Combined beneficiation process for wolframite and cassiterite from tungsten tailings: Mechanism and case study
Available online 14 November 2025
Owing to the lack of effective beneficiation technologies, valuable wolframite and cassiterite resources are lost in the tailings of tungsten–tin polymetallic mines. For Shizhuyuan polymetallic mine,...
Diffusion mechanism of splitting grouting in deep buried soft rock based on time-varying grout viscosity
Available online 14 November 2025
To address the fact that the mechanism of split grouting in deep weak rock formations lags far behind engineering practice, this study develops a theoretical model for splitting diffusion in a single...
Quantitative determination of CH4 production and CO2 storage in coal mine goaf: a CO2-ECBM recovery model that considers zonal permeability
Available online 7 November 2025
Injecting CO2 into coal mine goaf can not only recover the residual CH4 but can also satisfy the effect of CO2 geological storage in abandoned mines. To reveal the gas-solid couplings during the process...
Advancing Arsenic Contamination Detection in Boring Cores Using Hyperspectral Imaging and Convolutional Neural Networks
Available online 7 November 2025
The detection of hazardous arsenic contamination in geological formations is a critical challenge in construction and environmental monitoring. Traditional methods for identifying arsenic-containing...
Study on the mechanism and properties of new ionic liquid for zinc leaching: Experiment and molecular dynamics simulations
Available online 7 November 2025
In this paper, the innovative application of choline chloride-p-toluenesulfonic acid (Chcl-Ptsa) as a new type of leaching agent was investigated through zinc-containing dust sludge leaching experiments,...
Leaching of Lithium-Bearing Sedimentary Claystones Using Organic Acids
Available online 7 November 2025
Sedimentary claystones have become a significant lithium (Li) source. Currently, conventional sulfuric acid leaching is preferred for extracting Li from such claystones, but there are certain environmental...
Intelligent cemented paste backfill strength design framework: Interpretable machine learning and mix proportion optimization
Available online 7 November 2025
The rapid advancement of artificial intelligence has injected new vitality into cemented paste backfill (CPB) technology. However, current machine learning (ML) models for CPB strength prediction are...
Advancing arsenic contamination detection in boring cores using hyperspectral imaging and convolutional neural networks
September 2025
Detection of hazardous arsenic contamination in geological formations is a critical challenge in construction and environmental monitoring. Traditional methods for identifying arsenic-containing zones...
Artificial intelligence in shale gas and oil: A comprehensive review of applications and challenges
September 2025
This comprehensive review explores the integration of artificial intelligence (AI) in shale gas and oil resource management, with a focus on the application of machine learning and deep learning techniques....
Development and implementation of an intelligent early warning system for preventing environmental pollution from coal spontaneous combustion
September 2025
Coal spontaneous combustion fires threaten personal safety, increase carbon emissions, release toxic and harmful gases, and cause serious environmental pollution. The study of intelligent early warnings...
Intelligent cemented paste backfill-strength design framework: Interpretable machine learning and mix-proportion optimization
September 2025
The rapid advancement of artificial intelligence has introduced new vitality into cemented paste backfill (CPB) technology. However, current machine learning models for CPB-strength prediction are generally...
Analysis of China’s tin industry: Current state and developmental recommendations
September 2025
With the rapid development of industries such as fifth generation (5G), semiconductors, and electric vehicles, the exploitation and utilization of tin resources in China are advancing towards a greater...
Bacterial roles, genomic features, and their regulation in the cleaner recovery of low-grade chalcopyrite bioleaching: A critical review and future prospects
September 2025
Fluidized bioleaching is an efficient, environmentally friendly, and cost-effective mining method that has been widely explored and utilized for recovering low-grade copper sulfide minerals, such as...
Recycling municipal solid waste incineration fly ash and Si–Al based solid waste to prepare backfill materials for engineering applications: Insights into hydration mechanisms, carbon emissions, and costs
September 2025
Backfilling mining goafs with municipal solid waste incineration fly ash (MSWI FA) and industrial solid waste offers novel possibilities for advancing green mining engineering. However, the recycling...
Synergistic extraction of lithium, rubidium, and cesium from lepidolite: Steam roasting for defluorination and DFT calculation
September 2025
Lepidolites are important carriers of Li ores. Because of the strong positive correlation between the presence of Li and F, Li extracted from lepidolite must be defluorinated. Moreover, synergistically...
CO2 mineralization grouting into fractured gangue voids in post-mining goaf
September 2025
The treatment of post-mining goafs presents a significant challenge for the coal industry, grappling with environmental safety and carbon neutrality goals. To address issues such as abandoned goafs,...
Smart sensors, smart calibration: Applications in machine learning for coal dust monitoring
September 2025
The recent resurgence of pneumoconiosis among coal miners in the United States has been linked to their exposure to excessive levels of coal dust. PDM3700 monitors are used in the mining industry to...
In-situ cementation backfill of alkali-inspired ultrafine copper tailings: Performance and principles
June 2025
Ultrafine copper tailings (UTCT) are a type of bulk solid waste containing heavy metals, discharged from copper refining industries. Large stockpiles of these tailings pose significant environmental...
Quantitative determination of CH4 production and CO2 storage in coal mine goaf: A CO2-ECBM recovery model that considers zonal permeability
June 2025
Injecting CO2 into a coal mine goaf can not only recover residual CH4 but also satisfy the effect of CO2 geological storage in abandoned mines. To reveal the gas–solid couplings during CO2-enhanced...
Mechanical properties and damage evolution of rock–backfill composite under impact load
June 2025
The combined failure of rocks and backfills significantly affects the safety of underground mining. Based on the finite difference method (FDM)–discrete element method (DEM) coupled numerical simulation...
