Results 91 to 100 of about 105,036 (232)

Adsorção de selênio em latossolos Selenium adsorption in oxisols

open access: yesRevista Brasileira de Ciência do Solo, 2008
A retenção de Se pelos colóides do solo constitui importante processo para a manutenção da sanidade ambiental. A informação sobre a adsorção de Se em solos altamente intemperizados é restrita e existem poucos padrões quantitativos disponíveis para a ...
Ernesto Rinaldi Mouta   +4 more
doaj   +1 more source

Study on iron anchoring methods for magnetic biochar: Characterization, functional mechanism, and RBBR dye removal

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Magnetic biochar (MBC) is a novel bio‐metallic composite material with high potential in sustainable water cleaning. Iron anchoring is critical in forming iron‐based MBC and will fundamentally impact its characteristics and functionality in dye removal applications. However, the mechanism is not well‐revealed.
Soumik Chakma   +4 more
wiley   +1 more source

Factors affecting Hg (II) adsorption in soils from the Rio Negro basin (Amazon)

open access: yesQuímica Nova, 2005
Mercury (II) adsorption studies in top soils (top 10 cm) from the Rio Negro basin show this process depends strongly on some selected parameters of the aqueous phase in contact with the soils.
Patricia Miretzky   +3 more
doaj   +1 more source

The adsorption of adsorbable organic halide onto biological solids : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Technology in Environmental Engineering [PDF]

open access: yes, 1994
Chlorinated organic molecules may be removed from wastewaters by adsorption onto the biomass present in biological treatment systems. This study assessed the adsorption onto biological solids of Adsorbable Organic Halide (AOX) from two New Zealand kraft ...
Gapes, Daniel James
core  

Interfacial adsorption characteristics of surfactant‐modified nanoparticles: Equilibrium and dynamic effects of salinity at the oil–water interface

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Surfactant‐modified nanoparticles adsorb at the oil–water interface, enabling interfacial stabilization and microemulsion formation. Abstract This study systematically investigated the interfacial behaviour of silicon dioxide (SiO2) and aluminium oxide (Al2O3) nanoparticles (NPs) functionalized with cationic (CTAB), anionic (SDS), and nonionic (Triton ...
Behrooz Ahmadi   +2 more
wiley   +1 more source

Star formation across cosmic time

open access: yesFundamental Plasma Physics
The interstellar medium of galaxies is composed of multiple phases, including molecular, atomic, and ionized gas, as well as dust. Stars are formed within this medium from cold molecular gas clouds, which collapse due to their gravitational attraction ...
Jonathan Freundlich
doaj   +1 more source

Adsorption evaluation of Rhodamine WT, lithium and chloride in batch reactors inoculated with anaerobic sludge

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2013
The aim of this study is to evaluate trace’s mass adsorptive property of anaerobic sludge in batch reactors. Three types of tracers were prepared, i.e. Rhodamine WT (RWT), lithium and chlorine.
Jhonny Pérez   +2 more
doaj   +1 more source

Microwave‐Assisted Synthesis of Chitosan–Iron Oxide (CS@Fe3O4) Nanocomposite for Removal of Cationic and Anionic Dyes

open access: yesMacromolecular Materials and Engineering, EarlyView.
A novel chitosan–iron oxide nanocomposite synthesized via microwave‐assisted technique demonstrates rapid and efficient removal of both cationic and anionic dyes from water. Comprehensive characterization and adsorption studies reveal high capacity, reusable performance, and robust removal mechanisms, positioning this material as a promising, scalable ...
Gautam Priyadarshi   +8 more
wiley   +1 more source

Evaluación de la adsorción de rodamina WT, litio y cloruro en reactores por carga inoculados con lodo anaerobio

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2011
La presente investigación tiene como propósito evaluar la adsorción de la Rodamina WT (RWT), litio y cloruro en contacto con lodo anaerobio usando reactores por lotes. Se instalaron 4 reactores de 1 L (uno para cada trazador y un blanco).
Jhonny Pérez   +2 more
doaj  

From Computational Screening to Enhanced Adsorption: Optimized Removal of Toxic Congo Red by Nitrogen‐rich Triazine Polymers

open access: yesMacromolecular Materials and Engineering, EarlyView.
This study validates a DFT‐employed screening approach for discovering new adsorbent materials for organic dyes, successfully identifying CCTAT POP as a highly effective adsorbent for Congo red dye. The POP material exhibits a superior adsorption capacity (46.51 mg g−1) and maintains a regeneration ability, achieving over 90% removal efficiency in ...
Silpa Elizabeth Peter   +4 more
wiley   +1 more source

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