scholarly journals Leaching Behavior and Potential Environmental Effects of Trace Elements in Coal Gangue of an Open-Cast Coal Mine Area, Inner Mongolia, China

Minerals ◽  
2016 ◽  
Vol 6 (2) ◽  
pp. 50 ◽  
Author(s):  
Liu Yang ◽  
Jianfei Song ◽  
Xue Bai ◽  
Bo Song ◽  
Ruduo Wang ◽  
...  
2009 ◽  
Vol 59 (5) ◽  
pp. 1043-1051 ◽  
Author(s):  
X. W. Wang ◽  
N. N. Zhong ◽  
D. M. Hu ◽  
Z. Z. Liu ◽  
Z. H. Zhang

The concentrations of polycyclic aromatic hydrocarbons (PAHs) in the leachate from the gangue and 20 groundwater samples, which were collected from the 12th Coal Mine around gangue piles in Henan Province, China, were determined by SPE-GC-MS. The characteristics of PAHs pollutants in groundwater were investigated, and compared with the concentrations of PAHs in the leachate from different weathered gangues to discuss the pollution effects of PAHs from coal gangue on groundwater. The results showed that total concentrations of the 16 EPA preferentially controlled PAHs ranged from 146.9 ng/L to 1220.6 ng/L.The components of PAHs such as chrysene, benzo[a]anthracene, benzo[b + k]fluoranthene, indeno[1,2,3-c,d]–pyrene, and dibenz[a,h]anthracene were fairly high. The 2–4 rings PAHs such as naphthalene, phenanthrene, fluorene and chrysene were dominant in groundwater, which was similar to those of the leachate from the different weathered gangues. Therefore, it should be paid much more attention on the transport of lower ring numbered PAHs leached by rains from the coal mines after landfilling and dumping. Based on the spatial distribution of PAHs and the high concentrations of PAHs with 2–4 rings in groundwater and leaching samples, there might be other pollution sources of PAHs except for penetration from coal gangue into groundwater in the Pingdingshan coal mine area.


2016 ◽  
Vol 27 (5) ◽  
pp. 891-900 ◽  
Author(s):  
Xubo Gao ◽  
Mo Xu ◽  
Qinhong Hu ◽  
Yanxin Wang

Fuel ◽  
2021 ◽  
Vol 305 ◽  
pp. 121595
Author(s):  
Xiaoshuai Wang ◽  
Yuegang Tang ◽  
Harold H. Schobert ◽  
Tengda Ma ◽  
Sarma V. Pisupati ◽  
...  

2013 ◽  
Vol 63 (2) ◽  
pp. 271-281 ◽  
Author(s):  
Magdalena Kokowska-Pawłowska ◽  
Jacek Nowak

Abstract Kokowska-Pawłowska, M. and Nowak, J. 2013. Phosphorus minerals in tonstein; coal seam 405 at Sośnica- Makoszowy coal mine, Upper Silesia, southern Poland. Acta Geologica Polonica, 63 (2), 271-281. Warszawa. The paper presents results of research on tonstein, which constitutes an interburden in coal seam 405 at the Sośnica- Makoszowy coal mine, Makoszowy field (mining level 600 m), Upper Silesia, southern Poland. The mineral and chemical compositions of the tonstein differ from the typical compositions described earlier for tonsteins from Upper Silesia Coal Basin area. Additionally, minerals present in the tonsteins include kaolinite, quartz, kaolinitised biotite and feldspars. The presence of the phosphatic minerals apatite and goyazite has been recognized. The presence of gorceixite and crandallite is also possible. The contents of CaO (5.66 wt%) and P2O5 (6.2 wt%) are remarkably high. Analysis of selected trace elements demonstrated high contents of Sr (4937 ppm) and Ba (4300 ppm), related to the phosphatic minerals. On the basis of mineral composition the tonstein has been identified as a crystalline tonstein, transitional to a multiplied one.


2018 ◽  
Vol 196 ◽  
pp. 317-334 ◽  
Author(s):  
Bengen Gong ◽  
Qirun Yong ◽  
Zhuo Xiong ◽  
Chong Tian ◽  
Jianping Yang ◽  
...  

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