Results 21 to 30 of about 8,295 (264)

Ecological and health risks from heavy metal sources surrounding an abandoned mercury mine in the island paradise of Palawan, Philippines

Heliyon, 2023
A recent survey that determined heavy metal concentrations in an abandoned Hg mine in Palawan, Philippines, found the occurrence of Hg with As, Ba, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Sb, Tl, V, and Zn.
Reymar R. Diwa, Custer C. Deocaris, Lhevy D. Geraldo, Lawrence P. Belo   +3 more
doaj   +1 more source

Pumped storage hydropower in an abandoned open-pit coal mine: Slope stability analysis under different water levels

Frontiers in Earth Science, 2022
Many coal mines are being abandoned for economic and environmental reasons in China. The repurposing of abandoned open-pit coal mines into pumped storage hydropower (PSH) can help with the storage of renewable energy, improve mine environments, and ...
Feiyue Liu, Feiyue Liu, Feiyue Liu, Ke Yang, Tianhong Yang, Yuan Gao, Jinduo Li, Qinjie Liu, Qiang Fu   +8 more
doaj   +1 more source

Study on Complexity Planning Model of Pumped Storage in Abandoned Open-Pit Mine: A Case Study of Fushun Open-Pit Mine

Frontiers in Earth Science, 2022
Open-pit mining is one of the main exploiting methods for solid mineral resources. After more than 100 years of high-intensity development, there are a large number of abandoned open-pit mines and related mining relics in the world. The reconstruction of
Pingjia Luo, Xueqi Han, Ning Chen
doaj   +1 more source

Lichens of abandoned zinc-lead mines

Acta Mycologica, 2013
A list of lichens from areas of zinc-lead ores in Southern Poland and a review of the characteristic lichen biota of these sites is provided. In spite of the devastated and heavy metal contaminated environment, a highly diverse epigeic and epilithic lichen biota was found, including species characteristic of various anthropogenic habitats, particularly
Bielczyk, Urszula, Jędrzejczyk-Korycińska, Monika, Kiszka, Józef   +2 more
openaire   +6 more sources

Evaluation and composition analysis of coal abandonment in abandoned mines

, 2022
Abstract The development and utilisation of gas resources in closed mines is based on statistics of coal reserves that have been abandoned for a variety of reasons, with the evaluation method and procedure playing a crucial role as the core technology.
Jinzhao Liu, Xiangjun Chen, Shuailong Feng, Xinjian Li   +3 more
openaire   +1 more source

Dilatancy and compaction characteristics of deep high-stressed coal under multiple disturbance behaviors

Meitan kexue jishu
The mechanical and deformation behavior of deep high-stressed coal seams under ambient disturbance is different from that of shallow coal seams.
Chao LIU, Jiabao TIAN, Jinghua QI, Liang WANG, Minke DUAN, Beichen YU, Zhongzhong LIU   +6 more
doaj   +1 more source

A method for arranging a network of surface boreholes for abandoned gob methane extraction

Energy Exploration & Exploitation, 2019
To optimize the arrangement of a network of surface boreholes for abandoned gob methane extraction, a method for regional division of abandoned gobs based on their connectivity is proposed.
Wei Qin, Jialin Xu, Guozhong Hu, Jie Gao, Guang Xu   +4 more
doaj   +1 more source

Smart microgrid construction in abandoned mines based on gravity energy storage

Heliyon, 2023
The share of new energy in China's energy consumption structure is expanding, posing serious challenges to the national grid's stability and reliability.As a result, it is critical to construct large-scale reliable energy storage infrastructure and smart
Qinggan Yang, Qinjie Liu, Qiang Fu, Ke Yang, Man Zhang, Qiang Chen   +5 more
doaj   +1 more source

Crop Cultivation in Abandoned Mines

International Journal of Energy, 2023
Expounds the current status of the rising number of abandoned mines, sums up some mainstream of abandoned mine reuse idea, put forward the idea of cultivation of crops in the shaft, through the analysis of roadway surrounding rock stability, residual gas extraction and various key factors needed to make crops grow, and so on, this is a feasible and ...
Shihao Guo, Bangbang Mu, Mingyang Zhao, Huiyan Wang   +3 more
openaire   +1 more source

CO₂-Modified Bentonite-Based Multifunctional Sealing Material for Carbon-Negative Mine Fire Prevention and Gas Sequestration

Applied Sciences
The prevention of coal mine fires and the sequestration of CO2 represent two grand challenges that have traditionally been addressed separately. Here we report a CO2-modified bentonite-based sealing material that concurrently achieves fire resistance ...
Wenxin Dong, Zhuohang Zhang, Shizhou Zhu, Yalina Qi, Fei Gao, Minke Duan   +5 more
doaj   +1 more source