Results 71 to 80 of about 313 (161)

Mix proportion and microscopic characterization of coal-based solid waste backfill material based on response surface methodology and multi-objective decision-making

Scientific Reports
The mix proportion of multi-source coal-based solid waste (CSW) for underground backfilling affects transportation and support performance of backfill materials, and even the backfilling cost.
Xinyuan Zhao, Ke Yang, Xiang He, Zhen Wei, Jiqiang Zhang, Xiang Yu   +5 more
doaj   +1 more source

Moisture Reduction and Particle Charging Promotion for Enhanced Electrostatic Separation of Coal Gasification Fine Slag by Molecular Sieve

Separations
As an efficient dry separation technology, electrostatic separation exhibits significant potential for application in the sorting and recovery of carbon-rich resources from coal gasification fine slag (CGFS).
Chaoyong Li, Hui Zhou, Haisheng Li, Yinghua Chen, Ziyin Xu, Jie Li, Qiqiang Gao, Qiang Zhao   +7 more
doaj   +1 more source

Enhanced organic dye adsorption and recyclability of coal gasification fine slag via biomass modification and binder granulation

Materials Research Express
CGFS is typically generated as a fine powder that can disperse into air and water, creating dust pollution, material loss, and secondary contamination. During wastewater treatment, these ultrafine particles resist solid–liquid separation, making recovery
Jimin Xue, Gang He, Dongsheng Wu, Ling Zhang, Jing Yang   +4 more
doaj   +1 more source

Preparation and microstructure of coal gasification slag concrete for road construction

Meitan xuebao
In order to utilize the huge stock of coal gasification slag (CGS) as an alternative to river sand, the feasibility of coal gasification slag concrete for road construction is studied, and the influence of CGS on the performance of cement-based material ...
Yunlong XU, Changjun ZHOU, Xiaomin LIU, Junlong ZHOU, Yun ZHAO, Hexin JIN   +5 more
doaj   +1 more source

Soil reconstruction and water-salt transport mechanism of waste dump in arid open-pit coal mine in Northwest China

Meitan xuebao
The ecological restoration of mine dump is a major environmental problem faced by open-pit mining, and it is an important factor restricting the construction of green open-pit coal mine.
Kai ZHANG, Xiaonan LI, Kaikai BAO, Kaisheng JIANG, Xiaoyuan WANG, Xuying TAN   +5 more
doaj   +1 more source

Insights into the co-combustion attributes and mutual effects of high-alkali lignite and flotation carbon-rich fractions from coal gasification fine slag

Results in Engineering
The reutilization of waste coal gasification fine slag (GFS) as an energy source through co-combustion technology has been demonstrated to be a more economically and environmentally viable solution.
Yang Guo, Demian Wang, Xinjie Liu, Jianjun Wu, Fanhui Guo, Yixin Zhang, Shiling Yuan, Chunan Du, Meng Lin, Junliang Liu   +9 more
doaj   +1 more source

Optimizing Confined-Turbulence Conditioning for Enhanced Flotation of Coal Gasification Fine Slag

Minerals
Coal gasification fine slag (CGFS), a major solid by-product of coal gasification, contains substantial unburned carbon. However, efficient carbon–ash separation during CGFS flotation is often restricted by its complex surface properties. This study aims to enhance the flotation performance of CGFS by introducing a confined-turbulence pulp conditioning
Shuping Yang, Xiaoheng Li, Danlong Li, Haochun Hou, Jincai Ran, Xiaokang Yan, Haijun Zhang, Hainan Wang   +7 more
openaire   +1 more source

Ferro-aluminosilicate composite generated from coal gasification fine slag for the preconcentration and adsorptive removal of selected artificial sweeteners from water

Results in Chemistry
This study explores the beneficiation of coal waste, particularly transforming coal gasification fine slag (CGFS) into advanced nanomaterials with unique properties for water decontamination as a pivotal step towards achieving the United Nations ...
Xoliswa Cingo, Azile Nqombolo, Buhle Xakalashe, Xolisa Goso, Luthando Nyaba, Odwa Mapazi, Philiswa Nosizo Nomngongo   +6 more
doaj   +1 more source

EXAMINATION OF FUNDAMENTAL PROPERTIES OF CONCRETE USING COAL GASIFICATION SLAG FINE AGGREGATE

Cement Science and Concrete Technology, 2022
Yoshitaka MATSUURA, Masaki WASHIZU, Takuya MAESHIMA, Ichiro IWAKI   +3 more
openaire   +1 more source

Acid-base synergistic activation of coal gasification fine slag into hierarchical porous carbon for enhanced Cr(vi) adsorption and reduction. [PDF]

RSC Adv
Bai L, Wang H, Guo K, Li X, Bai K, Shi Z, Dang R.   +6 more
europepmc   +1 more source