Results 81 to 90 of about 160,458 (330)

Eggshell‐Based Biochar for Superior Adsorption of Crystal Violet Dye and Fluoride From Wastewater

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Present study investigates the efficiency of eggshell biochar as a low‐cost and ecofriendly adsorbent for the simultaneous removal of fluoride ions and crystal violet (CV) dye from wastewater. The eggshell waste was pyrolyzed to produce biochar, which was thoroughly characterized and subsequently employed for contaminant adsorption.
T. Mounika, A. Vijaya Bhaskar Reddy, V. Madhavi, K. V. Santhee Devi   +3 more
wiley   +1 more source

Rethinking the landslide risk assessment for socio-ecological systems using the example of the northern Bulgarian Black Sea coast [PDF]

One Ecosystem
In recent years, society become much more interested in nature disasters that cause damage. The consequences of these destructive processes of a meteorological, hydrological and geological nature sometimes remain for years until the affected areas are ...
Antoaneta Frantzova, Plamen Ivanov, Nikolai Dobrev, Boyko Berov, Rosen Nankin, Miroslav Krastanov, Boyko Ranguelov   +6 more
doaj   +3 more sources

Earth science field work: Role and status [PDF]

, 1988
This essay contends that the outstanding contributions currently being made to the earth sciences by theoretical and laboratory endeavors increase rather than decrease the need for sound field observations.
Sharp, Robert P.
core   +1 more source

Stability and Behavior of Bulk Nanobubbles Under Reservoir Conditions

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Compared with microbubbles, nanobubbles exhibit superior stability, higher specific surface area, and smaller size. These characteristics have increasingly attracted the attention of petroleum researchers. However, existing literature lacks studies on nanobubble concentration and size under harsh reservoir conditions. To address this gap, this
Chuanying Zhang, Junjian Li, Yangyang Li, Miao Zhang, Pengxiang Diwu, Guorui Sun   +5 more
wiley   +1 more source

A metaverse-based visual analysis approach for 3D reservoir models

Open Geosciences
Creating three-dimensional (3D) geological models is important for advancing our understanding and visualization of geological structures and phenomena.
Ding Zupeng, Zhang Yuqing, Wang Zongjun, Fang Hongfeng, Chen Qiyu   +4 more
doaj   +1 more source

Mechanism of Hydrogen Sulfide Generation and Prevention Strategies in Oil and Gas Fields: A Case Study of the Sickle Bay Operation Area

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT To address the persistent exceedance of hydrogen sulfide (H2S) concentrations and the limited effectiveness of existing treatments in the Sickle Bay oil production area, this study deeply analyzes the mechanism of H2S generation in the Sickle Bay oil production area and proposes targeted prevention and control strategies. The results show that
Bo Lei, Yao‐long Li, Bao‐ping Bai, Xiang‐de Zhang, Guan‐tao Shi, Yong‐long Xie, Chen‐xiao Hou, Cong‐Yu Ke   +7 more
wiley   +1 more source

GROSS CHEMICAL COMPOSITION OF LOESS AND THE AREA OF ROCKS AND THEIR ROLE IN THE FORMATIONOF GROUNDWATER MINERALIZATION

RUDN Journal of Engineering Research, 2016
Distribution of loess and loesslike breeds and main factors of forming of минерализации of subsoil and superficial waters of Uzbekistan are lighted up in the article.The processes of dissolution, lixiviating, are examined.
I A Agzamova, A A Adilov
doaj  

Nonlinear phenomena at geological reaction fronts with energy applications [PDF]

, 1989
Interaction of aqueous fluids with the rock matrix within which they reside can yield a variety of phenomena due to the coupling of reaction transport and mechanical processes; many of these have potentially important implications for exploration and exploitation of energy and mineral resources.
openaire   +2 more sources

Characterization and Modeling of Industrial Phosphoric Acids' Rheological Behavior: Impact of Magnesium Monoxide on Viscosity

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study investigates the rheological behavior of industrial phosphoric acids (H3PO4) produced at the JORF–LASFAR phosphoric plant in Morocco, with P2O5 concentrations of 18%, 29%, 42%, and 54%. Rheological measurements were performed using a rotary cylinder rheometer over a shear rate range of 1–1000 s−1.
Hamza Belbsir, Abderrahim Benzaouia, Said Kounbach, Abdelghani Laamaoui, Said Laassiri, Khalil El‐Hami, Rachid Benhida   +6 more
wiley   +1 more source

Modeling seismic wave propagation and amplification in 1D/2D/3D linear and nonlinear unbounded media

, 2010
To analyze seismic wave propagation in geological structures, it is possible to consider various numerical approaches: the finite difference method, the spectral element method, the boundary element method, the finite element method, the finite volume ...
Bard P. Y., Bard P. Y., Bonnet M., Bonnet M., Bouchon M., Chaljub E., Chopra A. K., Dobry R., Frankel A., Hughes T. J. R., J. F. Semblat, Komatitsch D., Manolis G. D., Sanchez-Sesma F. J., Sanchez-Sesma F. J., Semblat J. F., Sommerville P. G., Sánchez-Sesma F. J., Wirgin A., Wolf J. P.   +19 more
core   +6 more sources