In situ restoration of soil ecological function in a coal gangue reclamation area after 10 years of elm/poplar phytoremediation

2022 ◽  
Vol 305 ◽  
pp. 114400
Author(s):  
Dong-sheng Bai ◽  
Xu Yang ◽  
Jin-long Lai ◽  
Yi-wang Wang ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Ecological Function ◽  
Coal Gangue ◽  
Reclamation Area

Power Generation from Coal Gangue in China: Current Status and Development

2012 ◽  
Vol 550-553 ◽  
pp. 443-446 ◽  
Author(s):  
Jiang Long Yu ◽  
Fang Rui Meng ◽  
Xian Chun Li ◽  
Arash Tahmasebi
Keyword(s):  
Power Generation ◽  
Government Regulation ◽  
Thermal Power ◽  
Coal Gangue ◽  
Current Status ◽  
Particulate Matter Emission ◽  
The Government ◽  
Efficient Power ◽  
Plant Efficiency

This paper provides an overview on the current status of power generation in China using coal gangue. 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 industry firing coal gangue. Particulate matter emission control is a problem due to the high ash content. Sulfur emissions from these units are easily controlled mostly through lime/limestone injection and in-situ capture. Overall, efficient power generation using coal gangue is a promising approach to reduce the use of coal resources and reduce the environmental impacts.

Phase and Microstructure Evolution of Mullite Synthesized from Coal Gangue and γ-Al2O3

2012 ◽  
Vol 624 ◽  
pp. 17-21 ◽  
Author(s):  
Hai Peng Ji ◽  
Zhao Hui Huang ◽  
Kai Chen ◽  
Ming Hao Fang ◽  
Jun Tong Huang ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Microstructure Evolution ◽  
Coal Gangue ◽  
Total Consumption

Mullite with puncheon-like grains was synthesized by sintering the mixtures of coal gangue and γ-Al2O3 at 1400 °C~1550 °C for 4 h. The phase and microstructure evolution of the mullitization behavior were investigated by XRD, SEM and EDS. Phases of the sintered specimens were mullite, corundum and cristobalite at 1400 °C to 1450 °C. Arise of temperature would enhance mullitization, and total consumption of cristobalite occurred from 1500 °C upward. The in-situ produced primary mullite from gangue upon heating may be seeds for the growth of enenly dispersed mullite puncheons. Specimen sintered at 1550 °C consists of puncheons with an aspect ratio of 2~4, regionally forming an interlocking structure.

In Situ Burning Restores the Ecological Function and Structure of an Oil-Impacted Coastal Marsh

2010 ◽  
Vol 46 (5) ◽  
pp. 781-789 ◽  
Author(s):  
Joseph Baustian ◽  
Irving Mendelssohn ◽  
Qianxin Lin ◽  
John Rapp
Keyword(s):  
Ecological Function ◽  
Coastal Marsh

In-Situ Synthesis of (O′+β)-Sialon/Mullite Composite Materials from Coal Gangue

2015 ◽  
Vol 64 (3) ◽  
pp. 112-115
Author(s):  
H. Wang ◽  
J. Chen ◽  
Y. G. Liu ◽  
Z. H. Huang ◽  
M. H. Fang
Keyword(s):  
Composite Materials ◽  
In Situ Synthesis ◽  
Coal Gangue

Impact of coal gangue on the level of main trace elements in the shallow groundwater of a mine reclamation area

2011 ◽  
Vol 21 (5) ◽  
pp. 715-719 ◽  
Author(s):  
Wei Li ◽  
Longqian Chen ◽  
Tianjian Zhou ◽  
Qibao Tang ◽  
Ting Zhang
Keyword(s):  
Trace Elements ◽  
Shallow Groundwater ◽  
Mine Reclamation ◽  
Coal Gangue ◽  
Reclamation Area

scholarly journals Comprehensive Landscape Ecology Stability Assessment of a Coal Gangue Backfill Reclamation Area

2016 ◽  
Vol 25 (3) ◽  
pp. 1305-1314 ◽  
Author(s):  
Liu Xuan ◽  
Liu Wenkai ◽  
Zhang Hebing ◽  
Niu Haipeng
Keyword(s):  
Landscape Ecology ◽  
Coal Gangue ◽  
Stability Assessment ◽  
Reclamation Area
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