30 Questions
What are the two key strategies discussed for low-carbon filling and sequestration of coal-based waste?
Aligning with policies aimed at pollution reduction and emission control, transforming the issue of coal-based mine waste into an avenue for innovation
What are the main challenges faced by the coal industry according to the text?
Unprecedented challenges and opportunities due to China's carbon neutrality goals
Where is the Ministry of Education's Key Laboratory of Safe and Efficient Coal Mine Mining jointly built?
Anhui University of Science and Technology, Huainan, China
Which university is associated with the School of Civil, Environmental and Mining Engineering mentioned in the text?
The University of Adelaide, Australia
What is coal gangue?
Coal gangue is a rock layer stripped from above the coal seam during coal mining.
What is the chemical composition of coal gangue mainly dependent on?
The chemical composition of coal gangue is mainly dependent on the nature of the original coal and the rock types encountered during mining.
What unique property does the composition of coal gangue impart to it?
The unique composition of coal gangue imparts certain hardness, making it combustible.
What directive was issued by China's National Development and Reform Commission in 2021 regarding solid waste utilization?
The directive stated that by 2025, the comprehensive utilization rate of newly added bulk solid waste will reach 60%.
Why is a thorough understanding of the characteristics of coal-based waste necessary?
A thorough understanding is necessary as a prerequisite for the rational and effective development and disposal of coal-based waste.
What can prolonged exposure to water and air lead to in coal gangue?
Prolonged exposure to water and air can lead to the production of acidic substances in coal gangue.
What is one factor considered under Economic Viability for the assessment of coal-based waste as filling material?
Reduction in material costs
What aspect of Environmental Impact assessment focuses on preventing acidification of groundwater and surface water?
Reducing soil pollution
Why is Efficiency an important indicator in the assessment of waste materials for filling?
It affects mine stability and material utilization
What specific factor of Efficiency is important to evaluate for waste materials?
Carbon sequestration efficiency
Why are potential economic benefits like improved land value considered in the assessment?
To evaluate the overall financial impact of the technology
What additional expenses may be incurred when using coal-based waste as filling material?
Additional treatment expenses
What is the title of the article authored by A.Aguilar-Garrido et al.?
Remediation potential of mining, agro-industrial, and urban wastes against acid mine drainage.
Which authors focused on achieving a carbon-neutral society by reconciling peak carbon strategy and thermal power generation?
N.Y.Jiang, C.H.Zhang, W.H.Su, H.H.Jin, T.Balezentis
Who conducted a study on ultra-fast adsorption of radioactive technetium (99mtc) using mining waste clay samples from Abu-Tartur, Egypt?
A.S.Ahmed, W.A.Hassan, M.A.M.Mohamed, E.A.Ahmed, N.M.Shaalan, M.R.Abukhadra
In which journal did Z.Y.Fang et al. publish their work on carbonation curing of modified magnesium-coal based solid waste backfill material for CO2 sequestration?
Process Saf.Environ.Protect.
Who worked on the construction of a mine water recycling performance evaluation index system under the Internet of Things environment?
M.Z.Lei, Y.Li, N.Zhou, Y.Zhao
Which authors investigated the mechanical and microstructural properties of iron mining tailings stabilized with alkali-activated binder produced from agro-industrial wastes?
W.M.K.Levandoski, S.T.Ferrazzo, G.J.Bruschi, N.C.Consoli, E.P.Korf
How can sustainable mining development enhance competitive edge?
Through emission reduction and sequestration in the carbon market, reducing carbon credit purchases and trading additional allowances.
What role do relevant policies play in attracting social capital investment in coal enterprises?
Supporting research and development and technological innovation.
What is the significance of industry collaboration in technological innovation?
It simplifies the transformation steps from research to application.
How can industry collaboration help in driving resource allocation?
By strengthening partnerships between academic institutions and businesses.
What benefits can be reaped from encouraging industry collaboration?
Fast track for technological innovation and application.
How can policy support and collaboration within the industry promote the development of talent?
By attracting social capital investment.
Study Notes
- China's National Development and Reform Commission aims for a 60% utilization rate of newly added bulk solid waste by 2025 and reduction of stockpiled waste.
- Understanding coal-based waste characteristics is essential for its effective utilization, with coal gangue being a key type formed during coal mining.
- Coal gangue consists of silicates, aluminates, iron oxides, sulfates, and pyrites, making it combustible but susceptible to acidic substance production.
- Evaluation criteria for coal-based waste utilization include economic viability, environmental impact, efficiency, and policy support/industry collaboration.
- Economic viability assessment covers costs like capital expenditure, material procurement, and potential benefits like improved land value and carbon credit income.
- Environmental impact assessment considers effects on soil pollution, groundwater acidification, greenhouse gas emissions, and the importance of proper technology implementation.
- Efficiency evaluation involves filling efficiency, carbon sequestration capacity, and the importance of promoting sustainable mining practices through technological innovation and collaboration.
Test your understanding of the arrangement of content in a manuscript file. Challenge yourself with this quiz on the sequence of numbers from 11 to 64 found in the manuscript file.
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