Results 31 to 40 of about 5,444,424 (222)

Treatment of Leachate from the Technical Landfill Centre Aïn Defla (Algeria) by Oxidation and Biosorption Process [PDF]

open access: yesKemija u Industriji, 2021
The aim of this study was the treatment of leachate from the Technical Landfill Centre Aïn Defla in Algeria, which presents a serious threat to the environment.
Brahim Feraoun   +3 more
doaj   +1 more source

Slowly modulated oscillations in nonlinear diffusion processes [PDF]

open access: yes, 1977
It is shown here that certain systems of nonlinear (parabolic) reaction-diffusion equations have solutions which are approximated by oscillatory functions in the form R(ξ - cτ)P(t^*) where P(t^*) represents a sinusoidal oscillation on a fast time scale t*
Cohen, Donald S.   +2 more
core   +1 more source

Ternary Multicomponent Adsorption Modelling Using ANN, LS-SVR, and SVR Approach – Case Study [PDF]

open access: yesKemija u Industriji, 2021
The aim of this work was to develop three artificial intelligence-based methods to model the ternary adsorption of heavy metal ions {Pb2+, Hg2+, Cd2+, Cu2+, Zn2+, Ni2+, Cr4+} on different adsorbates {activated carbon, chitosan, Danish peat, Heilongjiang ...
Amina Yettou   +6 more
doaj   +1 more source

Mutual Influence of Some Flavonoids and Classical Nonionic Surfactants on Their Adsorption and Volumetric Properties at Different Temperatures

open access: yesMolecules, 2022
Due to the increasing practical use of mixtures of flavonoids with nonionic surfactants the presented studies were based on the measurements of surface tension and conductivity of aqueous solution of the quercetin (Q) and rutin (Ru) in the mixtures with ...
Anna Taraba   +3 more
doaj   +1 more source

Progress in understanding the four dominant intra-particle phenomena of lignocellulose pyrolysis: chemical reactions, heat transfer, mass transfer, and phase change

open access: yesGreen Chemistry, 2019
Four principal intra-particle phenomena occur in a highly concerted manner during the pyrolysis of lignocellulosic materials: heat transfer, mass transfer, chemical reactions, and phase changes.
M. B. Pecha   +4 more
semanticscholar   +1 more source

Adsorption Properties of Hydrocarbon and Fluorocarbon Surfactants Ternary Mixture at the Water-Air Interface

open access: yesMolecules, 2021
Measurements were made of the surface tension of the aqueous solutions of p-(1,1,3,3-tetramethylbutyl) phenoxypoly(ethylene glycols) having 10 oxyethylene groups in the molecule (Triton X-100, TX100) and cetyltrimethylammonium bromide (CTAB) with Zonyl ...
Bronisław Jańczuk   +2 more
doaj   +1 more source

Rehydrogenation of Sodium Borates to Close the NaBH4-H2 Cycle: A Review

open access: yesEnergies, 2021
In 2007, the US Department of Energy recommended a no-go on NaBH4 hydrolysis for onboard applications; however, the concept of a NaBH4-H2-PEMFC system has the potential to become a primary source for on-demand power supply.
Helder X. Nunes   +3 more
doaj   +1 more source

Optimization of Biodiesel Production Using Immobilized Candida Rugosa Lipase on Magnetic Fe3O4-Silica Aerogel [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2019
Hydrophobic magnetic silica aerogel was used as a support to immobilize Candida rugosa lipase by adsorption method. Physical and chemical properties of the support and immobilized lipase were determined by Field Emission Scanning Electron Microscope ...
Leila Amirkhani   +2 more
doaj  

Extraction of Bioactive Compounds from C. vulgaris Biomass Using Deep Eutectic Solvents

open access: yesMolecules, 2023
C. vulgaris microalgae biomass was employed for the extraction of valuable bioactive compounds with deep eutectic-based solvents (DESs). Particularly, the Choline Chloride (ChCl) based DESs, ChCl:1,2 butanediol (1:4), ChCl:ethylene glycol (1:2), and ChCl:
Maria Myrto Dardavila   +7 more
doaj   +1 more source

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