Results 41 to 50 of about 1,855 (214)

Carbón activado derivado de cáscara de zapallo (Cucurbita sp.) para la remoción de cloro total y residual de agua potable

Manglar, 2018
La presente investigación tuvo como objetivo producir carbón activado mediante activación química de un material no convencional, residuos de cáscara de zapallo “hueso” (Cucurbita sp.), con la finalidad de remover el cloro total y residual del agua ...
José Silva, John Rimaycuna, Eber Herrera, Dorian Aguirre, Miguel Puescas, Riitta Keiski, Gerardo Cruz   +6 more
doaj   +1 more source

Análisis comparativo de modelos cinéticos para un Filtro Biológico sin recirculación con medio de soporte en Luffa Cylindrica para el tratamiento de aguas residuales combinadas (domésticas y pecuarias) [PDF]

Logos Ciencia & Tecnología, 2018
El presente artículo considera un análisis de los diferentes modelos cinéticos para la estabilización de la materia orgánica en un filtro biológico con lecho en Luffa cylindrica, en donde el modelo que más influyó en la cinética con el modelo matemático ...
Juan Pablo Rodriguez Miranda, Sindy Yohana Castillo Ruiz, Diana Carolina Rubiano Castro   +2 more
doaj   +1 more source

A synthetic eco‐evolutionary proposal for the conservation of wild relatives of the olive tree

PLANTS, PEOPLE, PLANET, EarlyView.
Societal Impact Statement Crop wild relatives (CWR) are valuable sources of genetic diversity for plant breeding. However, the identification of wild untapped genetic resources (i.e., unexploited in crops) is not always straightforward. We propose a methodology to guide the identification and conservation of these resources that integrates both genetic
Andrés Barea‐Márquez, Guillaume Besnard, Miguel González Ximénez‐Embún, Carlos García‐Verdugo, Concepción M. Diez, José Carlos Pérez‐Girón, Rafael Rubio de Casas   +6 more
wiley   +1 more source

Photonic nanovoids for tailored optoelectronic response in silicon solar cells

Responsive Materials, EarlyView.
Optoelectronic workflow followed by experimental validation, demonstrating state‐of‐the‐art efficiency gains. Abstract As crystalline silicon (c‐Si) solar cells become thinner to reduce cost and weight, the optical design principles that govern light trapping (LT) must evolve.
Ivan M. Santos, Miguel Alexandre, Valentin D. Mihailetchi, Kezheng Li, António T. Vicente, Eva Almeida, Mónica Dyreby, Tiago Mateus, Tomás Calmeiro, Elvira Fortunato, Rodrigo Martins, Hugo Águas, Manuel J. Mendes   +12 more
wiley   +1 more source

Seasonal Variation in Carbon Dynamics in the Lower Tocantins River: Influence of Discharge and Environmental Drivers

River Research and Applications, EarlyView.
ABSTRACT Tropical rivers play a key role in regional carbon budgets, yet greenhouse gas (GHG) dynamics in regulated systems remain poorly understood. This study investigates the seasonal variability of carbon dioxide (CO2) and methane (CH4) concentrations, isotopic composition (δ13C), and river‐atmosphere fluxes in the lower Tocantins River, a ...
Maria Gabriella da S. Araújo, Vania Neu, Victor M. Guedes, Marcelo Z. Moreira, Nicholas D. Ward, Alex V. Krusche   +5 more
wiley   +1 more source

ANÁLISE DA ÁGUA RESIDUAL NO PROCESSO DE FRATURAMENTO HIDRÁULICO NA FORMAÇÃO MARCELLUS, WEST VIRGINIA, EUA

Revista Águas Subterrâneas, 2017
A Água Residual produzida no processo de Fraturamento Hidráulico foi o tipo de material mais comum relatado nos incidentes de derramamentos incluídos no relatório da Agência de Proteção Ambiental dos Estados Unidos (EPA).
Stephane Andry Reis Cerrato
doaj  

Water Losses and Environmental Efficiency in Urban Water Supply Systems: A Comparative Assessment for Spain and Portugal

Sustainable Development, EarlyView.
ABSTRACT Water losses are a critical environmental and operational challenge, especially in regions exposed to increasing water stress. This study assesses the environmental productivity of municipal water supply services in Spain and Portugal during the period 2014–2022, explicitly treating losses as an undesirable output.
Elisabet Zafra Gómez, Emilio José de la Higuera Molina, Rui Cunha Marques, Cristina María Campos Alba, Pablo Povedano‐Fernández   +4 more
wiley   +1 more source

The Employment of Hydrogen Peroxide in Water Disinfection Poses a Threat to Aquatic Ecosystems Because of Its Toxicity to Nontarget Organisms

Environmental Toxicology, EarlyView.
ABSTRACT Hydrogen peroxide is widely used in water and wastewater treatment, particularly in advanced oxidation processes that aid in the degradation of compounds and microbial disinfection. Despite concerns about potential environmental contamination, its impact on freshwater ecosystems remains inadequately studied.
Letícia Queiroz Almeida, Thayrine Dias Carlos, Leydiane Barbosa Bezerra, Rone S. Barbosa, Nelson Luís Gonçalves Dias Souza, Douglas Henrique Pereira, Renato Almeida Sarmento, Grasiele Soares Cavallini   +7 more
wiley   +1 more source

Validación experimental de modelos matemáticos de consorcio microalgasbacterias en aplicaciones para el tratamiento de agua residual institucional

Ingeniería del Agua
El objetivo de este trabajo es validar la representatividad de dos modelos matemáticos, para aplicaciones de tratamiento de agua residual con consorcios microalgas-bacterias.
David Santiago Herrera Santana, Diana Esmeralda Sarmiento Riaño, Gustavo Andrés Baquero Rodríguez   +2 more
doaj   +1 more source

DIVERSIDAD MICROBIANA PRESENTE EN AGUA RESIDUAL PROVENIENTE DE INDUSTRIA ATUNERA

REVISTA ESPAMCIENCIA, 2022
A study was carried out to identify the microbial diversity in wastewater from the tuna industry, the samples were obtained at different points in the tuna process, the analysis was carried out using molecular tools such as metagenomics, the Electrophoresis technique in Denaturation Gradient Gel (DGGE) and Polymerase Chain Reaction (PCR).
openaire   +1 more source