Results 51 to 60 of about 709,124 (306)

Thermoacidophilic Bioleaching of Industrial Metallic Steel Waste Product

open access: yesFrontiers in Microbiology, 2022
The continuous deposition of hazardous metalliferous wastes derived from industrial steelmaking processes will lead to space shortages while valuable raw metals are being depleted.
Denise Kölbl   +8 more
doaj   +1 more source

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

open access: yesAdvanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian   +4 more
wiley   +1 more source

Parâmetros operacionais no processamento de zeólitas desativadas por fusão com KHSO4 Experimental parameters for spent zeolites processing via fusion with KHSO4

open access: yesQuímica Nova, 2007
This work presents a study on the determination of the optimal experimental conditions for processing spent commercial zeolites in order to recover lanthanide elements and eventually other elements.
Luciano Aragão de Mendonça   +2 more
doaj   +1 more source

Smelting process of direct reduction iron bearing Ni and Cu to prepare Fe-Ni-Cu ternary alloy [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2019
The smelting behavior of direct reduction iron powder containing Ni and Cu from co-reduction followed by a magnetic separation of copper slag and nickel laterite was investigated in this paper.
Zhu D.-Q., Pan L.-T., Guo Z.-Q., Pan J.
doaj   +1 more source

Thermogravimetric and distillation studies on mercury, antimony and arsenic sulfides [PDF]

open access: yes, 1975
Thermogravimetric studies were made on naturally occurring sulfides of mercury, antimony and arsenic to determine activation energies and Arrhenius rates of reaction in vacuum and in atmospheres of air and nitrogen. Of the three sulfides only antimony
Rao, P.D., Town, J.W.
core  

Electrodialytic processes in solid matrices. New insights into batteries recycling. A review. [PDF]

open access: yes, 2019
Electrodialytic Remediation has been widely applied to the recovery of different contaminants from numerous solid matrices solving emerging issues of environmental concern.
Acar YB   +8 more
core   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

open access: yesAdvanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu   +8 more
wiley   +1 more source

Sustainable Recovery of Critical Minerals from Wastes by Green Biosurfactants: A Review

open access: yesMolecules
Biosurfactants have emerged as promising agents for environmental remediation due to their ability to complex, chelate, and remove heavy metals from contaminated environments.
Bita Deravian, Catherine N. Mulligan
doaj   +1 more source

Combined Gold Recovery and Nanoparticle Synthesis in Microbial Systems Using Fractional Factorial Design

open access: yesNanomaterials, 2022
Green synthesis of gold nanoparticles (AuNPs) using microorganisms has been generally studied aiming for high-yield production and morphologies appropriated for various applications, such as bioremediation, (bio)sensors, and (bio)catalysis.
Suanny Mosquera-Romero   +8 more
doaj   +1 more source

A review of acid recovery from acidic mining waste solutions using solvent extraction [PDF]

open access: yes, 2018
This is the peer reviewed version of the following article: Uchenna Kesieme, Andreas Chrysanthou, Maurizio Catulli, and Chu Yong Cheng, ‘A review of acid recovery from acidic mining waste solutions using solvent extraction’, Journal of Chemical ...
Catulli, Maurizio   +3 more
core   +2 more sources

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