Advances in studies investigating the comprehensive utilization of coal gangue: a visualization analysis based on CiteSpace DOI Creative Commons
Yichao Lin,

Meiyan Si,

Huijie Han

и другие.

Deleted Journal, Год журнала: 2024, Номер 7(1)

Опубликована: Дек. 23, 2024

Coal gangue, as a byproduct of coal mining and washing, has experienced significant surge in production due to escalating energy demands. The extensive accumulation gangue resulted challenges, including resource wastage severe environmental contamination. To better understanding the current research landscape, hotspots, emerging trends comprehensive utilization we employed CiteSpace bibliometric software visually analyze 200 articles published Web Science Core Collection from 2004 2023. majority these publications (85%) were between 2019 2023, with most originating China. This study used cooperative network analysis examine synthesize contributions different institutions scholars on examining gangue. By employing advanced techniques such keyword co-occurrence cluster analysis, our delves into dynamic hotspots this field over time periods. Through trend situation analyses, future directions for are proposed, aim inspiring relevant guiding policy formulation.

Язык: Английский

Towards carbon neutrality: A comprehensive study on the utilization and resource recovery of coal-based solid wastes DOI Creative Commons
Zhiguo Zhang, Xumei Cui, Cheng Gan

и другие.

International Journal of Coal Science & Technology, Год журнала: 2025, Номер 12(1)

Опубликована: Апрель 19, 2025

Abstract Coal-based soild wastes (CBSWs) are industrial byproducts that can be harmful to the environment. The exploitation and utilization of CBSWs offer societal advantages such as resource conservation, pollution reduction, cost-effective production. However, environmentally sustainable management remains a worldwide challenge due substantial production volume limited disposal capacity CBSWs. physicochemical properties summarized, including fly ash, coal gangue gasification slag. It also presents current global applications status resources examines market supply demand. Subsequently, paper provides an overview studies on ways utilise CBSWs, highlighting primary avenues which mainly from fields chemical materials, metallurgy agriculture. Furthermore, comparative evaluation various methods for recovery is conducted, outlining their respective disadvantages. future development recycling processes discussed. review concludes while there growing need attention in recycling, its will involve combination both large-scale treatment refinement processes. aims references insights effective environmental protection Future direction focus collaborative emphasizing high-value utilization. In addition, establish comprehensive database based on-site practices, explore solutions reduce transportation costs, improve during process.

Язык: Английский

Процитировано

2

Recycling efficiency mechanism of recycled concrete aggregate to improve the CO2 uptake and anti-leakage properties of CO2 sequestration functional backfills DOI
Tianqi Jiang, Xiaoxiao Cao, Huabo Duan

и другие.

Construction and Building Materials, Год журнала: 2024, Номер 458, С. 139663 - 139663

Опубликована: Дек. 24, 2024

Язык: Английский

Процитировано

6

Impacts of Thermal Activation on Physical Properties of Coal Gangue: Integration of Microstructural and Leaching Data DOI Creative Commons

Wangtao Fan,

Yuan Chen,

Runxia Zhang

и другие.

Buildings, Год журнала: 2025, Номер 15(2), С. 159 - 159

Опубликована: Янв. 8, 2025

The recycling of coal gangue has considerable potential to produce secondary environmental hazards, which significantly influence the high-end application in practical engineering. present study investigates effects activation treatment on physical, chemical properties and leaching behavior gangue. mineral composition, micro-pore structure element were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Thermogravimetry Analysis (TG), Low-Temperature Nitrogen Adsorption (LTNA) Inductively Coupled Plasma (ICP). results indicate that kaolinite pyrite experienced reconstruction after 600 °C during thermal activation. density thermally activated is increased with calcination temperature as well alkalinity (from 4.8–7.1) due burning organic oxidation pyrite. induced reduction macropore volume (>50 nm), enhancement mesopore (<5 nm) volume. Leachable Ni, Cd, Mn, Cu, Zn Pd decreased 99%, 67%, 86%, 40%, 99% 93% at 800 °C, respectively. Si Al calcined exhibited a high ability solution; leachable reached 106.4 mg/kg, while 86.1 mg/kg 48 h dynamic leaching.

Язык: Английский

Процитировано

0

Study on the synergistic preparation of functional soil from multiple coal-based solid wastes DOI Creative Commons
Yanan Liu, Fenglan Han, Ning Li

и другие.

Frontiers in Environmental Science, Год журнала: 2025, Номер 12

Опубликована: Янв. 17, 2025

Three coal-based solid wastes—fly ash (FA), gasification slag (GS), and coal gangue (CG)—were used to prepare functional soil (FGC) for the ecological restoration of mining areas. It not only solves problem shortage resources in area, but also realizes resourceful use waste. Investigating physicochemical properties oatgrass growth characteristics revealed optimal ratios. Compared with control (CK) at 30 d, average pH FGC3 (FA: 50wt%; GS: 25wt%; CG: 25wt%) decreased from 9.54 8.54, organic matter content increased 2.57% 7.60%, available potassium ammonium nitrogen 38.02 2.83 mg⋅kg −1 53.46 3.21 , respectively. Functional bulk density porosity were superior Sandy somewhere Ningxia (SL) GS CG contents &lt;25wt%. significantly improved agronomic traits. CK plant height, stem thickness, fresh weight, dry weight 17.68 cm, 0.99 mm, 0.09 g, 0.02 g 27.0 1.26 0.24 0.04 And chlorophyll was by 20.39% compared CK. This study verified feasibility synergistic preparation soils three wastes provides reference large-scale utilization wastes.

Язык: Английский

Процитировано

0

Quality assessment of new constructed technosols: Key findings on their biogeochemical and environmental characteristics DOI
Faten Khelifi, Xinyuan Zhao, Giovanna Antonella Dino

и другие.

Journal of Hazardous Materials, Год журнала: 2025, Номер 489, С. 137571 - 137571

Опубликована: Фев. 11, 2025

Язык: Английский

Процитировано

0

Outer space migration, soil first: Preparation of soil like matrix by co-pyrolysis of coal gangue and biomass DOI Creative Commons
Qiang Niu,

Fenghui Wu,

Guojun Chen

и другие.

Industrial Crops and Products, Год журнала: 2025, Номер 226, С. 120733 - 120733

Опубликована: Фев. 18, 2025

Язык: Английский

Процитировано

0

Experimental Study on the Liquid-Enhanced Infrared Recognition of Gangue Mixed Ratio in Dust Environment at Longwall Top Coal Caving Mining Face DOI
Jinwang Zhang, Geng He, Lianghui Li

и другие.

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0

Preparation and properties of CaO-Al2O3-SiO2 based porous insulation ceramics with addition of Phosphogypsum and Coal Gangue DOI

Dunxi Chen,

Nanyan Hu,

Yi Wu

и другие.

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0

Pedogenesis of Coal Gangue Heaps in High-altitude Plateau Areas driven by the In-situ Formation of Layered Double Hydroxides DOI Creative Commons

Wenqing Ma,

Shuteng Diao,

Chen Li

и другие.

Environmental Technology & Innovation, Год журнала: 2025, Номер unknown, С. 104145 - 104145

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0

A review of coal solid waste-based catalytic materials in wastewater treatment: Preparation and application DOI
Sheng Dong, Jinpeng Qiao, Chao Kang

и другие.

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 132800 - 132800

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0