Results 81 to 90 of about 1,674,066 (285)

Evaluation of Gas Migration and Rock Damage Characteristics for Underground Nuclear Waste Storage Based on a Coupled Model

Science and Technology of Nuclear Installations, 2018
In the deep geological repository of nuclear waste, the corrosion of waste generates gas, which increases the storage pressure, changes the properties of the rock strata, and affects the stability of nuclear waste repository.
Yi Xue, Faning Dang, Fang Shi, Rongjian Li, Zhengzheng Cao   +4 more
doaj   +1 more source

Heavy Medium Separation of Spodumene Waste Rock in Sichuan

Kuangchan zonghe liyong
This is an article in the field of mineral processing engineering. The study objects are a spodumene waste rock in Sichuan. According to the mineral characteristics of thisspodumene waste rock, heavy medium separation tests were carried out at three ...
Ting HE, Xiaojun YANG, Wei WEN, Wei ZHANG, Xinwen YU   +4 more
doaj   +1 more source

Gradation and stress transmission mechanism of mixed backfill in the waste dump

矿业科学学报
The structural stability of waste dumps is critically important to the safety of mine production. Taking the mixed tailings-waste rock dump of a specific mine as the research object, this study systematically analyzed the particle gradation ...
ZHANG Xiaodong, LING Jiahong, CHEN Qian, LI Xinyang   +3 more
doaj   +1 more source

Kinetic Model Evaluation of Arsenic and Selenium Sources in Waste Rock of the Powder River Basin, USA

Mining
Groundwater quality can be impacted by the backfilling of coal pits with waste rock containing new mineral surfaces and nanomaterials. This study was implemented to identify newly available arsenic and selenium sources in waste rock from the Cordero Rojo
Jeff B. Langman
doaj   +1 more source

Catalytic Pyrolysis of Waste Polystyrene Over Fe–B Composite Catalyst for Enhanced Liquid Fuel Production

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Healthcare derived polystyrene waste represents a growing and under addressed fraction of plastic waste streams due to contamination risks and limited recyclability. This study aims to investigate the valorization of waste polystyrene foam through catalytic and noncatalytic pyrolysis pathways to evaluate product yield distribution and identify
Salman Khan, Zahid Hussain, Bilal Ahmad, Naveed Ahmad, Shohreh Azizi   +4 more
wiley   +1 more source

Synergistic Effect on Enhanced Oil Recovery in High Salinity Carbonate Reservoirs Using a Novel PEI‐Functionalized Carbon Nanotube Nanocomposite

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Enhancing oil recovery (EOR) in mature reservoirs is hindered by high interfacial tension (IFT) and oil‐wet rock formations, especially under harsh, high‐salinity conditions. This study aims to overcome these limitations by synthesizing a novel carbon nanotube nanocomposite covalently grafted with polyethylenimine and non‐covalently ...
Mohamed Abu Shuheil, Dilipkumar S. Patel, N. Beemkumar, Tariq Abdulkader Alrihaim, Dhirendra Nath Thatoi, Ripendeep Singh, Rohit Kumar, Parminder Singh, Ahmad Khalid   +8 more
wiley   +1 more source

Design of a New Technology for Stockpile of Open Pit Dumps During Integrated Development of Man-Made Waste

Environmental and Climate Technologies
In case of open-pit mineral resources mining development on the earth’s surface, there is an accumulation of overburden rocks, the volume of which is comparable to the size of the open pit being developed.
Altynbayeva Gulnara, Kuzmin Sergey, Lezhnev Sergey, Melentyev Sergey   +3 more
doaj   +1 more source

Structural characterization and mechanical properties of basalt-based glasses and fibers with Fe2O3 addition

Results in Engineering
This study systematically investigates the impact of Fe₂O₃ addition on the structure and properties of basalt-based glasses and fibers prepared from SDZB-2008 raw material.
Chuncheng Yang, Xingyu Liu, Yusheng Jiang, Teng Li, Hankun Zhang, Lingtao Zeng, Ding Wang, Jiaqi Liu, Hongchao Li, Changjiang Liu, Yan Li   +10 more
doaj   +1 more source

Valorization of Post‐Consumer Waste From Metallized Flexible Packaging and Industrial EPM Waste: Development of Sustainable Composites

Journal of Applied Polymer Science, EarlyView.
Post‐consumer metallized flexible packaging waste and industrial EPM waste are transformed into sustainable composites through mechanical recycling. The incorporation of 30 wt% EPM provides the most favorable balance between stiffness, ductility, and impact resistance, achieving 53.36 kJ/m2.
Tiago O. Oliveira, Samara L. Santos, Ruth M. C. Santana   +2 more
wiley   +1 more source

Physical and Numerical Modeling of a Flow Control Layer Made with a Sludge and Slag Mixture for Use in Waste Rock Pile Reclamation

Mining
The reclamation of waste rock piles (WRPs) is complex, requiring adaptation of existing mine site reclamation techniques. An alternative approach has been developed for waste rock piles reclamation which involves installing finer materials on the top of ...
Nelcy Carolina Otalora Vasquez, Abdelkabir Maqsoud, Tikou Belem   +2 more
doaj   +1 more source