Results 1 to 10 of about 9,806 (193)

Microstructure and mechanical behaviors of coal gangue - Coal slime water backfill cementitious materials

Journal of Materials Research and Technology, 2022
Coal gangue and slime water are difficult to dispose and utilize on a large scale, which could cause environmental pollution and waste of resources. Therefore, the co-treatment of coal gangue and slime water can serve as an environmentally friendly and ...
Lingling Shen, Jixiong Zhang, Wanan Lai, Meng Li, Binbin Huo   +4 more
doaj   +4 more sources

Insight into the Enhanced Removal of Water from Coal Slime via Solar Drying Technology: Dewatering Performance, Solar Thermal Efficiency, and Economic Analysis [PDF]

ACS Omega, 2022
In this work, solar drying technology was applied for the deep dewatering of coal slime to save thermal energy and reduce the dust produced during the hot drying process of coal slime. Solar drying technology is used to dry coal slime to realize its resource utilization.
Xin Guo, Kan Li, Pin Zhou, Jianxing Liang, Jia-nan Gu, Yixin Xue, Mingming Guo, Tonghua Sun, Jinping Jia   +8 more
doaj   +4 more sources

Research on influence of CPAM ionic degree on settling characteristics of high muddied coal slime water

Meitan kexue jishu, 2023
In order to study the sedimentation characteristics and action mechanism of cationic polyacrylamide (CPAM) with different ionic degrees on the high muddied coal slime water, the particle size composition and mineral composition of the high muddied coal ...
FAN Youlin, CHANG Ting, ZHANG Jinlong, XU Hongxiang, CUI Jiahua, TIAN Han, YIN Yanan   +6 more
doaj   +2 more sources

Quantitative investigation of moisture migration during microwave drying of coal slime dough through simulation and tracer analysis [PDF]

Scientific Reports
Moisture migration during the microwave drying process of coal slime is critical for improving drying efficiency and reducing energy consumption. Nevertheless, current methods for quantifying these migration behaviors remain insufficient.
Fei Wang, Nan Tian, Lei Ren, Kai Zhang, Jing Wang, Yuanyuan Zhang   +5 more
doaj   +2 more sources

Impact of Fire and Heat Stress on Soil Microorganisms: A Review of Community Changes, Molecular Responses and Plant-Beneficial Roles. [PDF]

Environ Microbiol Rep
This work reviewed the direct and indirect effects of fires on microbial communities and the resilience strategies microbes use to withstand high temperatures . ABSTRACT Fire, whether occurring on the surface or underground, significantly influences soil microbial dynamics by reshaping community composition, functional diversity and overall soil and ...
Orozco-Mosqueda MDC, Flores-Piña A, Kumar A, Parra-Cota FI, de Los Santos-Villalobos S, Mitra D, Babalola OO, Santoyo G.   +7 more
europepmc   +2 more sources

Preparation of CaCl2-heat treated coal slime based composite catalytic material and its performance toward phenol degradation by activating peroxymonosulfate

矿业科学学报, 2023
Based on the current situation of comprehensive utilization of coal slime in China and the urgent need for water pollution control in coal mining areas, this paper uses coal slime(CS)as raw material and CaCl2 as the activator, different proportions of ...
Wang Qizhou, Li Chunquan, Yin Shuaijun, Sun Zhiming   +3 more
doaj   +1 more source

Effect of the Polymerized Titanium Ferric Sulfate (PTFS) Coagulant on Sedimentation of Coal Slime Water [PDF]

Minerals, 2021
High efficiency slime water settlement is very important for ensuring washing water recycling in coal preparation plants. In order to improve the sedimentation of coal slime water, an iron ion-based coagulant was prepared by titanium ion complexation action using titanium sulfate as a main raw material, Fe3+ and NaH2PO3 as a stabilizer and NaHCO3 as an
Changsheng Shi, De Guo, Yang Li, Zhenxing Zhang, Ligang Tang   +4 more
openaire   +1 more source

Experimental Research into the Ultrasonic P-Wave Velocity of Coal Slime Based Backfill Material

Applied Sciences, 2023
To study the influences of different mix proportions of materials on the ultrasonic p-wave velocity of coal slime based backfill materials, influences of four factors on the p-wave velocity of specimens were investigated by designing orthogonal tests and
Baifu An, Chenghao Cui, Jinfang Ren, Dongda Wang, Jiale Wang, Qiaomei Yi   +5 more
doaj   +1 more source

Research on Optimization Experiment of Preparing 13X Molecular Sieve

Kuangchan zonghe liyong, 2022
Coal slime was a solid waste generated from raw coal washing, with large output and serious harm. The 13X molecular sieve was prepared from Huangling coal slime by alkali fusion-hydrothermal method. Through orthogonal experiments, it was found that n(H2O/
Yucheng Si, Tao Wu
doaj   +1 more source

A fast detection method for slime water flocculation and sedimentation rate based on image grayscale recognition

Gong-kuang zidonghua, 2023
At present, there is a lack of effective online detection methods for important parameters such as mineral composition that affect the flocculation and sedimentation effect of slime water.
GENG Yanbing, WANG Zhangguo
doaj   +1 more source