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Mostrando ítems 51-60 de 269
Sobre los materiales de encapsulado para electrodos selectivos de ionesOn the encapsulation materials for ion-selective electrodes
(Universidade Federal do Rio de Janeiro, 2020-09)
Los electrodos selectivos de iones (ISEs) con membranas de vidrios calcogenuros son sensores capaces de detectar iones demetales pesados en soluciones electrolíticas. Su uso in-situ y repetido plantea grandes desafíos a ...
Mechanical properties and microstructure of cement mortars incorporating Cd-zeolitized fly ash
(Springer, 2018-10)
A solid enriched with NaA zeolite was synthesized from a coal fly ash, and the so-obtained zeolitized material was used as ion exchanger for purifying aqueous solution containing cadmium cations. Mechanical strengths and ...
Differential effects of Zn concentrations on Cr(VI) uptake by two Salvinia species: involvement of thiol compounds
(Taylor & Francis, 2021-07)
Floating ferns of the genus Salvinia have great potential for phytoremediation of heavy metals. To date, the effect of essential metals on the accumulation and transport of toxic metals by aquatic ferns has not been suitably ...
Influence of pH on cadmium, copper, and lead removal from wastewater by steel slag
(Desalination Publ, 2016-09)
Steel slag is a byproduct of steel manufacturing which raises an important environmental concern due to the high volume of generation and, specially, its basicity. The aim of this work was to determine its recycling potential ...
Coulomb Lindhard approximation: non linear excitation effects for fast ions penetrating a free electron gas
(American Physical Society, 2003-12)
We introduce a distorted wave method to calculate the nonlinear excitation effects occurring when a fast bare ion penetrates a free-electron gas. The central scheme of this work is to replace the undistorted plane waves ...
Metal Removal from Wastewater Using Sludge from a Natural Stabilization Pond as Biosorbent
(University of Tehran, 2019-06)
The present work was focused on evaluating the potential use of a sludge produced in a municipal natural facultative pond as biosorbent to remove metal ions (Pb2+, Cd2+, Ni2+, and Cr6+) from aqueous solutions. The influences ...
Impact of metals exposure and resiliency values in wild filamentous fungi
(Biology, Pahrmacy and Allied Sciences, 2013-09)
Human activities result in environmental stress produced by heavy metals or organic contaminants, changing the community structure and tolerance. Fungal adaptation to metals, cotolerance and resilience or power to recuperate ...
Reusing Materials: Pb and Cr biosorption
(University of Zagreb, 2016-09)
The heavy metals such as chromium and lead are highly toxic and have high persistence in the environment. This has direct implications on the ecosystem and the health of populations not directly exposed to contaminated ...
Synthesis of geopolymers from fly and bottom ashes of a thermoelectrical power plant for metallic ions adsorption
(Springer Science + Business MediaGermany, 2022)