Results 41 to 50 of about 243 (127)

OXIDACIÓN POR VÍA HÚMEDA CATALÍTICA DE EFLUENTES INDUSTRIALES EMPLEANDO UN CATALIZADOR DE Pt SOPORTADO EN NANOTUBOS DE CARBONO DE PARED MÚLTIPLE

open access: yesAvances en Ciencias e Ingeniería, 2011
En el presente trabajo se ha estudiado la efectividad de la oxidación por vía húmeda catalítica para tratar aguas residuales industriales en un reactor por lote.
Gabriel Ovejero   +4 more
doaj  

Data gaps and heterogeneity limit our understanding of human–wildlife interactions: A continental study of Andean bears

open access: yesPeople and Nature, Volume 8, Issue 5, Page 1499-1519, May 2026.
Abstract The expansion and intensification of human activities have increased interactions between people and wildlife. Interactions involving bears and other large carnivores are complex and can lead to conflicts. Promoting positive coexistence requires managing information, which is not always available.
Roxana Rojas‐VeraPinto   +2 more
wiley   +1 more source

The War of the Pacific and Chilean public revenues: Reallocation of the tax burden and institutional change

open access: yesThe Economic History Review, Volume 79, Issue 2, Page 575-599, May 2026.
Abstract A substantial body of literature has considered warfare a fundamental driver of fiscal capacity. We argue that the nature of the tax base available to governments can either foster or constrain the ability and incentives of central elites to impose their legitimacy once the war is over.
Oriol Sabaté, José Peres‐Cajías
wiley   +1 more source

Remoción de Metales de Aguas Residuales Industriales

open access: yesRevista Colombiana de Química, 2009
En este trabajo se evalúa la tasa de remoción de cuatro metales pesados, comúnmente encontrado en Aguas Residuales Industriales (A,R,I,): Cobre, Cromo, Mercurio y Plata, mediante el empleo de plantas acuáticas vasculares "Jacintos de Agua".
Carlos Alberto Guerrero Fajardo
doaj  

Development and Application of a Simplified Method for Preliminary Assessment of Enhanced Oil Recovery and CO2 Geological Storage in Petroleum Reservoirs

open access: yesGreenhouse Gases: Science and Technology, Volume 16, Issue 2, Page 238-252, April 2026.
ABSTRACT Geologic carbon storage in depleted oil and gas reservoirs is a key CO2 mitigation strategy, utilizing existing infrastructure such as injection wells and pipelines, while capitalizing on well‐characterized subsurface properties. This article introduces a versatile methodology designed to estimate critical parameters, including the number of ...
Nívia Morgana de Oliveira   +2 more
wiley   +1 more source

REACTORES DISCONTINUOS SECUENCIALES: UNA TECNOLOGÍA VERSÁTIL EN EL TRATAMIENTO DE AGUAS RESIDUALES

open access: yesCiencia e Ingeniería Neogranadina, 2014
El interés en eliminar contaminantes de las aguas residuales se ha incrementado en los últimos años. Existe una constante búsqueda de nuevos y mejores diseños que permitan la implementación de sistemas de tratamiento confiables, de bajo costo y que ...
Juan Fernando Muñoz Paredes   +1 more
doaj   +3 more sources

Influence of Hornification Treatment and Fiber Length on the Performance of Recycled Polypropylene Composites

open access: yesPolymer Composites, Volume 47, Issue 5, Page 4793-4803, 10 March 2026.
Study of the influence of hornification treatment and jute and mallow fiber length on the physical, thermal, and mechanical properties of recycled polypropylene (PP) composites. ABSTRACT The growing accumulation of plastic waste has driven its reuse in the development of new composites, with natural fibers emerging as promising reinforcements. However,
Raquel de Sousa Freire   +4 more
wiley   +1 more source

Evaluación de Fotocatalizadores Ti02/ZnO para el Tratamiento de Aguas Residuales Industriales

open access: yesQuimica Hoy, 2015
Las mezclas de catalizadores pueden ser utilizadas a escala industrial como un método de preparar mejores catalizadores.Este estudio aborda la evaluación de mezclas TiOi/ZnO en reacciones fotocatalíticas para el tratamiento de efluentes de una industria flexográfica colombiana con el uso de colectores parabólicos cilíndricos CPC.
Mónica Almansa Ortegón   +3 more
openaire   +2 more sources

Phosphogypsum Doses and Subsoil Contamination: A Study on the Mobility of Rare Earth Elements, Uranium, and Thorium

open access: yesEuropean Journal of Soil Science, Volume 77, Issue 2, March–April 2026.
Experiment setup view. ABSTRACT Soil conditioners are commonly used by producers aiming to enhance agricultural productivity, and among these products, phosphogypsum has gained increasing attention. As an agricultural amendment, phosphogypsum contains rare earth elements (REE), uranium (U), and thorium (Th), raising environmental concerns regarding its
Luís Paulo P. Tanure   +7 more
wiley   +1 more source

Achieving Transboundary Water Security Through Water Innovations: A Framework and Cases

open access: yesWorld Water Policy, Volume 12, Issue 1, February 2026.
ABSTRACT Alternative sources of freshwater, provided by various innovations, have long been available to countries facing acute water stress. We hypothesize that avoiding and/or resolving conflict with neighbors—caused by the uncertainty of continued access to shared surface water and groundwater sources—is another driver of innovation adoption ...
David Lewis Feldman
wiley   +1 more source

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