Results 1 to 10 of about 1,044,333 (178)

BIOTECNOLOGÍA APLICADA A LA DEGRADACIÓN DE COLORANTES DE LA INDUSTRIA TEXTIL

Ecosistemas y Recursos Agropecuarios, 2014
La presencia de colorantes en las aguas residuales representa un problema ambiental, ya que este tipo de compuestos no puede eliminarse con los métodos de tratamiento convencionales.
A Cortazar-Martínez, CA González-Ramírez, C Coronel-Olivares, JA Escalante-Lozada, J Castro-Rosas, JR Villagómez-Ibarra   +5 more
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Recent Advances in the Use of Transition-Metal Porphyrin and Phthalocyanine Complexes as Electro-Catalyst Materials on Modified Electrodes for Electroanalytical Sensing Applications

Solids, 2021
Metalloporphyrins (MP) and metallophtalocyanines (MPc) are innovative materials with catalytic properties that have attracted attention for their application for diverse electrochemical purposes. The presence of metallic centers in their structure offers
J. Antonio Cruz-Navarro, Fabiola Hernández-García, Luis Humberto Mendoza-Huizar, Verónica Salazar-Pereda, J. Ángel Cobos-Murcia, Raúl Colorado-Peralta, Giaan Arturo Álvarez-Romero   +6 more
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Earliest Results in the Use of Activated Composite Membranes for the Transport of Silver Ions from Aqueous Solutions

Journal of Chemistry, 2014
This paper presents the results concerning the first use of activated composite membranes (ACMs) for the facilitated transport of silver ions containing di-(2-ethylhexyl)-dithiophosphoric acid (DTPA) as the carrier.
Yucundo Mendoza-Tolentino, Carlos Andrés Galán-Vidal, Giaan Arturo Álvarez-Romero, M. T. Ramírez-Silva, Ma. Elena Páez-Hernández   +4 more
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AVALIAÇÃO DA QUALIDADE DE PILHAS ALCALINAS E ZINCO-CARBONO DE DIFERENTES PROCEDÊNCIAS

Eclética Química, 2018
This work presents a study on the chemical composition of spent batteries manufactured in Brazil and Asian countries. The goal was to compare the quality of these products. Samples were disassembled prior to chemical characterization. The Asian batteries
Leonardo Henrique Coimbra Vieira, Rafael Gundim Silva, Bruno Oliveira da Silva, Sérgio de Souza Henrique Júnior, Sílvio Carrielo Câmara, Júlio Carlos Afonso   +5 more
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Determination of Lipoxygenase Activity in Cereals Grains Using a Silver Nanoparticles Assay

Journal of Chemistry, 2015
A spectrophotometric method based on the use of silver nanoparticles is presented for the determination of lipoxygenase activity in cereal grains.
Raybel Muñoz, Jose A. Rodriguez, M. Elena Páez-Hernández, Irais Sánchez-Ortega, Eva M. Santos   +4 more
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BENEFICIAMENTO E CARACTERIZAÇÃO DE QUARTZO PARA OBTENÇÃO DE SILÍCIO GRAU METALÚRGICO

Holos, 2012
Este trabalho descreve as etapas de caracterização e purificação de quartzo para obtenção de um silício grau metalúrgico (SiGM) com baixo nível de impurezas.
Livia Gonçalves Leida Soares, Érika Batista Silva, Francisco Manoel Santos Garrido, Fernanda Arruda Nogueira Gomes Silva, Roberto Salgado Amado, João Alves Sampaio   +5 more
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Use of Peperomia scandens for phytoremediation of contaminants in wastewater from the Salado River, Hidalgo

Desalination and Water Treatment
Peperomia scandens (Ps.), an aquatic plant from the Piperaceae family with over 1500 species, has not been previously studied for its ability to remove contaminants from wastewater. Notably, Ps.
A. Hernández-Sánchez, C. Romo-Gómez, C. Camacho-López, O.A. Acevedo-Sandoval, C.A. González-Ramírez, F. Salas-Martínez   +5 more
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SINTESE DA FASE SODALITA COM O USO DO CAULIM DA REGIÃO BORBOREMA-SERIDÓ (RN/PB) ATIVADO TERMICAMENTE

Holos, 2012
A fase mineral sodalita foi obtida com sucesso a partir de reações hidrotérmicas com o uso de caulim proveniente da região Borborema-Seridó (RN/PB), hidróxido e carbonato de sódio.
Cássia Guerra Marques Santos, Patrick Maximo Paraizo Braune Lane, Adriana Aquino Soeiro Silva, Carla Napoli Barbato, João Alves Sampaio, Francisco Manoel Santos Garrido, Fernanda Arruda Nogueira Gomes Silva   +6 more
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Estimación de los volúmenes históricos de las aguas residuales exportados por la megaciudad de México al Valle del Mezquital de 1985 a 2020

Tecnología y ciencias del agua
El sistema de drenaje de la Ciudad de México es muy complejo y cuenta con cuatro salidas artificiales de desalojo: el Gran Canal de Desagüe, y los Emisores Central, Poniente y Oriente, que transportan agua residual y pluvial hacia el Valle del Mezquital.
Ana Karen Hernández-Espinosa, Elena María Otazo-Sánchez, Alma Delia Román-Gutiérrez, Claudia Romo-Gómez   +3 more
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Mineralogía y condiciones de cristalización en el complejo subvolcánico de Barcarrota (Badajoz, España)

Estudios Geologicos, 1987
Se estudian las características químicas de los minerales más significativos del Complejo subvolcánico de Barcarrota, formado por litologías subalcalinas consistentes en: gabros olivínicos, dioritas, cuarzo-monzonitas y granitos anfibólicos, así como por
C. Galindo, C. Casquet
doaj   +1 more source