— Comprehensive Utilization of Coal Gangue. Zuo Peng-fei. Environmental Science, Engineering. 2009. The coal gangue is a kind of solid wastes from coal mining …

 — This paper summarizes the utilization of coal gangue in the preparation of chemical products such as alumina, aluminum chloride and polyaluminum chloride; New materials such as bricks, cement raw materials, ceramic materials, molecular sieves, ultra-fine kaolin, etc., can also be used for comprehensive utilization of roads, reclaimed fields ...

DOI: 10.1016/j.pnsc.2024.02.012 Corpus ID: 268401715; Environmental hazards and comprehensive utilization of solid waste coal gangue @article{Zheng2024EnvironmentalHA, title={Environmental hazards and comprehensive utilization of solid waste coal gangue}, author={Qinwen Zheng and Yi Zhou and Xin Liu and Meng Liu and Libing Liao and …

 — 1. Introduction. The coal gangue accounts for about 10–20% of coal production, and it is one of the largest industrial solid wastes emitted in China [1,2].It occupies land and pollutes the atmosphere and water [3,4], so carrying out comprehensive utilization of coal gangue is one of the important ways to solve these problems.The …

Coal gangue as one of the largest industrial solid wastes in China brings about very serious environmental, social and economic problems. Comprehensive utilization of coal gangue …

coal-gangue-based silicon fertilizer, and its reliability veri-ed, thereby providing a theoretical basis for use of coal-gangue-based silicon fertilizer in agriculture. Materials and methods Materials Coal gangue The coal gangue used in the experiment comes from the Shendong mining area in Inner Mongolia, China, with an ash content of~ 85.60%.

Oil and coal are abundant in China and it is a superiority for the development. Coal gangue come from the course of coal exploitation, and processing, which is one of the solid wastes of industry biggest in emission of our country. How to solve this environment pollution and effectively utilize the coal gangue is a main subject and difficult problem faced at …

 — Against the background of the carbon neutralization strategy, the treatment and utilization of coal gangue should focus on three aspects: its own carbon-free emissions; its carbon absorption ...

 — The Chinese government issued the Management Measures for Comprehensive Utilization of Coal Gangue, explicitly prohibiting permanent gangue dumps and encouraging underground filling, land reclamation and new sanitary landfill modes [15]. As a low-calorific-value fuel, full use of coal gangue's calorific value can be made to …

Download Citation | On Jan 1, 2022, published Overview of Comprehensive Utilization of Coal Gangue | Find, read and cite all the research you need on ResearchGate

 — Comprehensive utilization of coal gangue. Along with strict environment regulations, there is an increasing demand for the utilization of coal gangue in a more …

 — Coal gangue, a residue produced during the coal mining process, has found sparse utilization in civil engineering applications. To gauge the feasibility of using coal gangue for geotechnical and geoenvironmental applications, comprehensive characterization study was performed which include understanding the geotechnical, …

 — For comprehensive utilization of the coal gangue from different locations, coal gangues were calcined at temperatures of 800°C, 900°C, and 1,000°C for 2 h, respectively, and then blended in ...

The amount of coal gangue, a by-product of coal mining and washing, is rapidly increasing with the growing trend of energy consumption. The accumulated coal gangue without appropriate utilization has resulted in a squander of resources, waste disposal and environmental pollution issues. Over the past few decades, there has been wide …

 — The comprehensive utilization of coal gangue can be divided into two categories: one is directly mixed with other solid waste, with large consumption, simple process, mature technology, and easy industrialization, primarily used in the fields of building materials, agricultural production, green cover and backfilling of underground …

 — The government regulation towards the use of coal gangue for power generation is introduced. Emission of pollutants and low thermal power plant efficiency are the two major problems for the power ...

 — The comprehensive utilization of coal gangue is a severe problem that many countries and regions confront. Extracting strategic metals from coal gangue and adequately treating the residue ...

 — Abstract Among coal mining-related wastes, coal gangue (CG) is the heterogeneous waste generated during the mineral processing or coal washing phase of coal mining. A thorough understanding of environmental concerns associated with the current model of ...

 — The coal gangue in China is the core field of bulk solid waste comprehensive utilization due to its massive stock and emission, high concentration of output, small proportion of high-value-added utilization, …

 — To address the environmental issues and safety hazards caused by surface accumulation of gangue, research on comprehensive utilization and backfilling mining of coal gangue has been conducted both ...

 — Comprehensive utilization of coal gangue resources is primarily concentrated in landfills, pavement construction, power generation, brickmaking, and the chemical industries [3,8,9,10]. Although several applications have been conducted for its recovery, its utilization rate and added value are still low .

 — Previous researchers like Bouzza and Heerten [] and Damians et al. [] have established that methodology adopted in the evaluation of carbon emissions associated with the geotechnical works like MSE wall construction, subgrades and landfill liner works.The CFA has been performed for two cases, i.e., utilization of CG as a subgrade material …

Download Citation | On Sep 10, 2018, JIA HAN and others published Research of Comprehensive Utilization of Coal Gangue | Find, read and cite all the research you need on ResearchGate

This article briefly introduces the compose and harm of coal gangue,and integrates with the characteristics of coal gangue's chemic component of Pingdingshan Coal Mine,and analyzes the comprehensive utilization of the coal gangue approach,then carries out the comprehensive utilization of the coal gangue.

Currently, the comprehensive utilization rate of coal gangue remains at a relatively low level, and a standardized and feasible research system has yet to be established. Therefore, addressing the water, atmospheric, and soil environmental pollution caused by coal mining and coal gangue accumulation, this paper summarizes the relevant research ...

The utilization of coal gangue resources in our country has just started, and the overall utilization rate has not reached the ideal level. Therefore, the research on the utilization of coal gangue resources should be focused …

 — To make a comprehensive use of coal gangue, it is proposed to use this solid waste instead of fine aggregate to prepare gangue concrete pile for pile-net composite foundation. The influences from substitution ratio of fine coal gangue aggregate upon the mechanical parameters of concrete were analyzed through laboratory test, and the lab …

Currently, the comprehensive utilization rate of coal gangue remains at a relatively low level, and a standardized and feasible research system has yet to be established. Therefore, …

 — Coal gangue (CG), which accounts for about 10–20 % of coal output, is a kind of solid waste generated during the coal mining and washing processes. According to Fig. 2, the annual output of CG in China fluctuates between 600–800 million tons, with a utilization rate hovering around 70 %.

 — China's total coal production in 2021 exceeded 4.13 billion tons, 52% of the world's total. Coal gangue, a solid waste of coal mining accounts for 15–20% of coal production, when directly discharged on …