Article
Environmental Sciences
Haoxuan Yu, Izni Zahidi, Chow Ming Fai
Summary: This paper suggests that abandoned tailings ponds can be transformed into fertile agricultural land through effective reclamation efforts. Serving as a discussion paper, it explores the environmental and health risks associated with tailings ponds, as well as the potential and obstacles in repurposing them for agriculture. The discussion concludes that while there are significant challenges, there are encouraging prospects with the implementation of comprehensive efforts.
ENVIRONMENTAL RESEARCH
(2023)
Review
Geochemistry & Geophysics
Heidi L. Cossey, Anya E. Batycky, Heather Kaminsky, Ania C. Ulrich
Summary: The review discusses five mechanisms of geochemical change expected in tailings landforms: consolidation, chemical mass loading via pore water fluxes, biogeochemical cycling, polymer degradation, and surface water and groundwater interactions. Key considerations and knowledge gaps regarding the long-term geochemical stability of tailings landforms are identified, including salt fluxes and subsequent water quality, bioremediation and biogenic greenhouse gas emissions, and the biogeochemical implications of various tailings treatment methods meant to improve geotechnical properties of tailings, such as flocculant (polyacrylamide) and coagulant (gypsum) addition.
Article
Energy & Fuels
Natalia Araya, Yendery Ramirez, Luis A. Cisternas, Andrzej Kraslawski
Summary: The article evaluates the water-energy nexus in copper mining companies and finds trade-offs between water and energy by analyzing the balance of mine tailing facilities and water supply to the mine site using a water reduction model. The results show that improving water reuse through dewatering technologies can enhance the water-energy nexus, reduce energy consumption, and decrease treatment and transport costs.
Article
Geosciences, Multidisciplinary
Yanbo Zhu, Huitao Zheng, Hengxing Lan, Yaowen Liu, Langping Li, Boyu Fu, Changcheng Du
Summary: This study investigated the self-healing behavior of desiccation cracks in compacted clayey soils and found that it is influenced by the initial water content and dry density. Higher initial water content and lower dry density result in larger self-healing amount. This difference in self-healing is caused by the vertical anisotropic shrinkage of substrate soil below non-propagating cracks.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Environmental Sciences
Dongdong Li, Binbin Yang, Changde Yang, Zepeng Zhang, Mingming Hu
Summary: The study found that increasing sodium chloride content in saline soil reduces both water evaporation and crack development, as well as decreasing crack ratio, total length of crack network, average crack width, and fractal dimension of cracks. When the sodium chloride content reaches 16%, the soil surface is covered by salt and no cracks appear.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Review
Green & Sustainable Science & Technology
Zhang Xiaolong, Zhang Shiyu, Liu Hui, Zhao Yingliang
Summary: Mining plays a crucial role in human history, but also has negative impacts on the environment and health. Mine tailings are a significant threat from ore processing. Geopolymerization offers a promising approach to recycle mine tailings and convert waste into value.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Kamrul Islam, Shinsuke Murakami
Summary: Tailings are waste materials generated from mining activities and stored in large dams, failures of which can have serious environmental impacts. Despite the availability of safer technologies for waste management, most mining companies have yet to adopt them.
GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS
(2021)
Article
Engineering, Geological
Elodie Lieber, Isabelle Demers, Thomas Pabst, Emilie Bresson
Summary: This study evaluated three approaches to simulate climate change and compared the impact on reclamation performance. Results showed that the projected impact of climate change varied depending on the approach used, but a well-designed monolayer cover with elevated water table remained efficient in the long term.
CANADIAN GEOTECHNICAL JOURNAL
(2022)
Article
Construction & Building Technology
Alieh Saedi, Ahmad Jamshidi-Zanjani, Ahmad Khodadadi Darban, Mehdi Mohseni, Hamidreza Nejati
Summary: Using lead-zinc mine tailings as a cement substitute in concrete production can effectively stabilize heavy metals and improve compressive strength. However, high sulfide content affects the formation of hydration products and reduces the properties and strength of concrete.
JOURNAL OF BUILDING ENGINEERING
(2022)
Review
Materials Science, Ceramics
Xiang He, Zuhua Yuhua, Shaker Qaidi, Haytham F. Isleem, Osama Zaid, Fadi Althoey, Jawad Ahmad
Summary: This review paper discusses recent advances in the production of mine tailings-based geopolymer composites as a potential sustainable building material. It provides in-depth studies on the behaviors and characteristics of these composites and explores their physical properties, mechanical properties, durability properties, microstructural properties, thermal properties, leaching behavior, and potential applications. The article also highlights the need for further research on the environmental footprints and economic benefits of mine tailings-based geopolymer composites and outlines future study opportunities based on existing challenges.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Runjuan Zhou, Ming Zhang
Summary: This study successfully alleviated heavy metal pollution caused by copper tailings and the eutrophication of water caused by orthophosphate using a chemically active leaching solution and advanced treatment technology.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Environmental
Ian M. Power, Carlos Paulo, Hannah Long, Justin A. Lockhart, Amanda R. Stubbs, David French, Robert Caldwell
Summary: This study explores the potential for stabilizing brucite-bearing mine tailings through in situ cementation while sequestering CO2. The research shows that the abundance of brucite, water availability, and grain sizes are key factors influencing the carbonation process.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Geochemistry & Geophysics
Gabrielle Dublet-Adli, Thomas Pabst, Gudny Okkenhaug, Christian Saetre, Anna M. Varheim, Mari K. Tvedten, Samuel K. Gelena, Andreas B. Smebye, Marianne Kvennas, Gijs D. Breedveld
Summary: The study found that using pre-oxidized tailings as a moisture retention layer in cover systems can effectively reduce Cu concentrations. However, despite some improvements, the issue of acid drainage continued to persist in the leachate water.
Article
Environmental Sciences
Dominique Barrette, Philippe Marchand, Hermine Lore Nguena Nguefack, Marie Guittonny
Summary: In Canada, low-grade ore mines produce a significant amount of mineral waste. Re-vegetating the mine tailings with agronomic herbaceous plants is a common practice to control erosion. This study evaluates the impact of different herbaceous plants on soil properties and the growth and nutrient concentration of boreal tree species. The results suggest that combining legumes with willow cultivars produces the best seedling growth and survival in the harsh conditions of mine tailings.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Engineering, Environmental
A. Tuomela, V Pekkala, A. Rauhala, A. Torabi Haghighi, P. Leviakangas
Summary: The mining industry produces significant amounts of waste materials, which can be used as alternative civil engineering materials. This study evaluated the frost behavior of tailings from metal mines in northern Finland and Sweden, finding that finer tailings are more susceptible to frost.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Environmental
Ting Bao, Zhen Liu (Leo), John Bland
COLD REGIONS SCIENCE AND TECHNOLOGY
(2019)
Article
Thermodynamics
Ting Bao, Zhen (Leo) Liu
ENERGY CONVERSION AND MANAGEMENT
(2019)
Article
Thermodynamics
Ting Bao, Si Liu, Yinghong Qin, Zhen (Leo) Liu
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2020)
Article
Engineering, Geological
Ting Bao, Zhen Leo Liu
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2020)
Article
Energy & Fuels
Yinghong Qin, Yingpeng Li, Ting Bao
Article
Engineering, Civil
Ting Bao, Behnam Azmoon, Zhen (Leo) Liu
Summary: The study introduces a constrained optimization approach to predict freezing depth (FD) and thawing depth (TD) for accurate decision-making on spring load restrictions (SLR). Results show that the constrained optimization method outperforms non-constrained optimization in accurately predicting FD and TD, enabling precise SLR decisions. Additionally, the study questions the accuracy of using a Thawing Index (TI)/Freezing Index (FI) ratio of 0.3 for SLR removal dates in the U.S., suggesting that the FD and TD prediction model is more reliable for decision-making. This methodology presents a practical tool for road engineers and provides insights for preventing freeze-thaw induced damages in cold regions.
TRANSPORTATION GEOTECHNICS
(2021)
Article
Engineering, Environmental
Zhen (Leo) Liu, John Bland, Ting Bao, Michael Billmire, Aynaz Biniyaz
Summary: Pavement conditions are crucial for pavement performance and longevity. Developing a web-based pavement condition prediction tool can automate the prediction of Spring Load Restrictions, leading to cost savings in road maintenance.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2021)
Article
Construction & Building Technology
Yinghong Qin, Xijun Pang, Kanghao Tan, Ting Bao
Summary: The study found that replacing a portion of cement with biochar in pervious concrete has little impact on porosity and water permeability, but increases water absorption. When the biochar content is 0-6.5%, the compressive strength and splitting tensile strength of pervious concrete are higher than conventional concrete, but compromised above 6.5%.
CEMENT & CONCRETE COMPOSITES
(2021)
Article
Construction & Building Technology
Ting Bao, Zhen (Leo) Liu
Summary: This study introduces a novel method for bridge scour monitoring based on predominant natural frequency (PNF), allowing the prediction of the bridge scour characteristic curve (BSCC) using a few measured scour depth-PNF data points and estimation of the modulus of subgrade reaction. The proposed approach accurately predicts the whole BSCC in realistic scenarios and lays a solid foundation for frequency-based structural health monitoring methods.
STRUCTURAL CONTROL & HEALTH MONITORING
(2021)
Article
Environmental Sciences
Yunan Lu, Jinli Xie, Cheng Yang, Yinghong Qin
Summary: The buffer tank proposed in this study can effectively intercept surface runoff and control discharge to mitigate urban flooding, especially during heavy rains. It also helps in storing rainwater for future heavy rain events, providing a solution to the problem of urban flooding saturated by small long-lasting rains.
Article
Engineering, Geological
Ting Bao, Jeff Burghardt
Summary: This paper presents a Bayesian approach to quantify uncertainty in stress estimations for subsurface engineering applications. The approach provides an estimate of the 3D distribution of stress and its uncertainty, allowing for informed decision-making in engineering applications.
ROCK MECHANICS AND ROCK ENGINEERING
(2022)
Article
Engineering, Geological
Ting Bao, Xuanming Ding, Zhen Liu, Han Cao
Summary: This study proposes a novel physics-informed optimization approach for analyzing the dynamic response of engineering structures in complex nonlayered soil conditions involving soil-structure interaction. By utilizing a few measured data points, the nonlinear frequency-scour depth relationship can be accurately estimated, providing assistance in situations where field testing is difficult or the demand for field measurements needs to be reduced.
INTERNATIONAL JOURNAL OF GEOMECHANICS
(2022)
Article
Green & Sustainable Science & Technology
Ting Bao, Han Cao, Yinghong Qin, Guosheng Jiang, Zhen (Leo) Liu
JOURNAL OF CLEANER PRODUCTION
(2020)
Article
Engineering, Geological
Jie Jiang, Kaiwen Hou, Xiaoduo Ou
GEOTECHNICAL AND GEOLOGICAL ENGINEERING
(2020)
Article
Green & Sustainable Science & Technology
Lars odegaard Bentsen, Narada Dilp Warakagoda, Roy Stenbro, Paal Engelstad
Summary: This study investigates uncertainty modeling in wind power forecasting using different parametric and non-parametric methods. Johnson's SU distribution is found to outperform Gaussian distributions in predicting wind power. This research contributes to the literature by introducing Johnson's SU distribution as a candidate for probabilistic wind forecasting.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Xing Liu, Qiuchen Wang, Yunhao Wen, Long Li, Xinfang Zhang, Yi Wang
Summary: This study analyzes the characteristics of process parameters in three lean gas ethane recovery processes and establishes a prediction and multiobjective optimization model for ethane recovery and system energy consumption. A new method for comparing ethane recovery processes for lean gas is proposed, and the addition of extra coolers improves the ethane recovery. The support vector regression model based on grey wolf optimization demonstrates the highest prediction accuracy, and the multiobjective multiverse optimization algorithm shows the best optimization performance and diversity in the solutions.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Cairong Song, Haidong Yang, Xian-Bing Meng, Pan Yang, Jianyang Cai, Hao Bao, Kangkang Xu
Summary: The paper proposes a novel deep learning-based prediction framework, aTCN-LSTM, for accurate cooling load predictions. The framework utilizes a gate-controlled multi-head temporal convolutional network and a sparse probabilistic self-attention mechanism with a bidirectional long short-term memory network to capture both temporal and long-term dependencies in the cooling load sequences. Experimental results demonstrate the effectiveness and superiority of the proposed method, which can serve as an effective guide for HVAC chiller scheduling and demand management initiatives.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Zhe Chen, Xiaojing Li, Xianli Xia, Jizhou Zhang
Summary: This study uses survey data from the Loess Plateau in China to evaluate the impact of social interaction on the adoption of soil and water conservation (SWC) technology by farmers. The study finds that social interaction increases the likelihood of farmers adopting SWC, and internet use moderates this effect. The positive impact of social interaction on SWC adoption is more pronounced for farmers in larger villages and those who join cooperative societies.
JOURNAL OF CLEANER PRODUCTION
(2024)
Article
Green & Sustainable Science & Technology
Chenghua Zhang, Yunfei Yan, Kaiming Shen, Zongguo Xue, Jingxiang You, Yonghong Wu, Ziqiang He
Summary: This paper reports a novel method that significantly improves combustion performance, including heat transfer enhancement under steady-state conditions and adaptive stable flame regulation under velocity sudden increase.
JOURNAL OF CLEANER PRODUCTION
(2024)