Amado Enrique Navarro Frómeta

Universidad Tecnológica de Izúcar de Matamoros · Food Technology

Plastic pollution is a worldwide problem. Its extended use has led to human exposure to micro and nanoplastics (MNPs) through inhalation, ingestion, and also through contact with the skin, by direct contact, or because of the pollution of water and air. In general, the adverse effects produced by MNPs on human health are well known, however, they a...

Samples of total suspended particles were taken at points located in the vicinity of two polluted rivers of Puebla, México, an affluent of the Atoyac River (UPMP), the Nexapa River (ICATEP), a point at some distance from the Nexapa River (UTIM) and one point far from this stream (sCarlos). 1 L water samples were taken from the two streams (aAtoyac...

El objetivo de esta investigación es el de sentar las bases de una política de rescate y conservación de los humedales mexicanos para que los seres humanos que coexisten con ellos se relacionen simbióticamente con ese entorno, ofreciendo y recibiendo beneficios mutuos. Debe considerarse el proyecto denominado PentaHélice para que esta política func...

Contamination by heavy metals and metalloids in water resources, soil, and air is one of the most severe problems that compromise food and water safety and public health globally and locally. Water naturally contains heavy metals; however, its increase, although sometimes also determined by natural enrichment when passing through aquifers containin...

Resumen. Los humedales del planeta están sujetos a una fuerte presión por parte de las comunidades humanas y, por ello, en la Convención realizada en la ciudad de Ramsar en Irán en enero-febrero de 1971, se creó un tratado intergubernamental que sirve de marco para la acción nacional y la cooperación internacional. Con él se busca la conservación y...

Prólogo En este libro electrónico los autores han hecho un recuento de las celebraciones realizadas bajo los aupicios de las campañas organizadas por la Convención de Ramsar para concientizar a los ciudadanos del mundo sobre la importancia de los humedales naturales para preservar el ambiente y reducir los estragos que el cambio climático está cau...

El libro tiene como enfoque principal analizar de manera detallada los Pasivos Ambientales Mineros (PAM) en Colombia, con énfasis en la problemática derivada de la minería aurífera en distintas zonas del país y las alternativas basadas en la naturaleza como estrategias para la remediación de los PAM. A través de una serie de capítulos específicos,...

Las corrientes de agua superficial pequeñas, por lo general están sometidas en la actualidad a múltiples presiones derivadas de los cambios hidrogeomórficos, el manejo de su vegetación riparia, el cambio climático, en general de la presión antrópica sobre estos ecosistemas y de la insuficiente atención a la restauración ecológica , siendo el objeto...

The presence of Emerging Pollutants (EPs) on the beaches of Acapulco, Mexico, is evaluated for the first time. Samples were taken from the discharge of the wastewater treatment plant at Olvidada beach, and at three beaches that receive contributions from different streams that cross through the city in Santa Lucia Bay (SLB). Using solid phase extra...

Sargassum algae has become a major environmental issue due to its abundance in the Pacific Ocean with hundreds of tons reaching the beaches of the Mexican Caribbean every year. This generates large quantities of decomposing organic matter that have a negative impact on the re-gion's economy and ecosystems. Sargassum valorization has turned out to b...

Oil contamination of ecologically sensitive aquifer systems is a major global environmental problem. Depending on their availability, there is a trend to seek sorbent materials based on natural fibers, for their high adsorption capacity and biodegradability. The objective of this work was to obtain a sorbent material, by carbonizing sugarcane bagas...

This work studied the application of adsorption with activated carbons (ACs) and photodegradation to reduce the concentration of triclosan (TCS) in aqueous solutions. Concerning the adsorption, the ACs (Darco, Norit, and F400) were characterized in detail, and batch experiments were applied to elucidate the effect of pH on the equilibrium. The resu...

Due to the demands of oxygenated derivatives of hydrocarbons for the industry, the methane (CH4) to methanol (MeOH) conversion through solid-state catalysis is a current topic, with definite questions and specific challenges. This work shows a statistical model that predicts the quantity of methanol produced through a batch conversion process emplo...

Sea cucumbers are fished worldwide for export to Asia, but few studies have evaluated metal pollution and risk assessment. This study assessed concentration of trace metals and the potential ecological risk in sea cucumber (Holothuria floridana) and sediments at the Cispatá Bay, in the Caribbean Coast of Colombia. The trace metal concentrations in...

It was evaluated the performance of French vertical flow constructed wetlands of different configurations, for the treatment of domestic residual water in the Tarn Department in France. Likewise, the functioning of these systems, at the mesocomos level, for the removal of emerging contaminants in the tertiary treatment of the effluent of a municipa...

Implications of Fracking on water consumption

This chapter discusses the main reasons for viewing non-steroidal anti-inflammatory drug (NSAIDs) as emerging contaminants. Their access routes into the environment are specified, in particular into natural and wastewater, and current evidence about their possible toxic effects is described. Mention is made of the most commonly used methods for rou...

After a brief description of the most relevant aspects of hydraulic fracturing technology, the main threats involved in its use for the environment, society, and human health are reviewed. Based on the situation of unconventional reserves in Mexico, an assessment is made of the risks involved in the use of technology for the country. It is conclude...

The largest volume of water that humanity uses is dedicated to agricultural irrigation, vital to ensure food for the growing population of our planet. This poses many challenges since the concentration of the population in urban areas confers a new dynamic on the relations between the countryside and the city. Additionally, climate change creates s...

Water resources in Mexico show different scenario depending on the region, from high scarcity in the north to abundance in the south. The central to northern parts of the country are semiarid and arid regions with water stress due to agriculture, industry, and domestic demands. Pollution is a common threat by the growing industry and population, wi...

A review of some of the stressors to river water quality shows that the inappropriate use of water in agriculture and the use of rivers as sinks for agricultural, industrial and domestic pollution are the main stressors of water quality. The above is aggravated by the effects of climate change on water availability. Often, authorities at all levels...

In the original publication of this book, the volume number was incorrect. It should read “88” instead of “999”. This has now been corrected.

This book presents several complex case studies related to water management and planning in the context of pollution, growing demands, and global climate change in Mexico, but which are also relevant for other countries in Latin America. These concerns are of critical importance for policymakers who are coping with multiple conflicting interests. W...

The book includes original works by a group of authors, members of the Thematic Network on Quality Management and Availability of Water, of the National Council of Science and Technology of Mexico.

Las fragancias son sustancias que comúnmente se agregan a muchos productos de consumo para enmascarar el olor de otros productos químicos y dar al consumidor una sensación agradable. Están presentes, por ejemplo, en los cosméticos, detergentes, suavizantes de telas, productos de limpieza para el hogar, fragancias finas, ambientadores e incluso alim...

The authors had an academic meeting to face the challenge to provide clean water and to dispose of wastewaters once treated to reduce pollution impacts and to recycle the treated effluent. Chemistry plays a substantial role to the solution of removing pollutants since chemical reactions are crucial to increase the final quality of the treated efflu...

One of the environmentally friendly options for decentralized treatment of wastewaters from communities with less than 2000 inhabitants is the constructed wetlands (CW). These are semi-terrestrial systems with high moisture contents and vegetation with auto-depuration potential. Natural wetlands are mimicked by CW with minimum or even null energy c...

Constructed wetlands (CWs) are a viable technology that can remove organic micropollutants (OMPs) through synergic processes that involve interactions between vegetation biomass and microorganisms, such as hydrolysis, volatilization, sorption, biodegradation, and photolysis. This is accomplished through a combination of design conditions of the wet...

Sugarcane and bioethanol production is a very important socioeconomic activity in subtropical and tropical countries. Nevertheless, the high volume of water used and the high strength of the sugarcane effluents demand adequate strategies for water consumption minimization and suitable treatment and reuse. In this regard, constructed wetlands (CWs)...

In this chapter, for articles addressing drugs as pollutants of natural and wastewater, we discuss the temporal distribution of studies, as well as the main countries of origin for such studies. Focus is given to those articles with more than 200 citations. The main sampling techniques, sample extraction, and detection methods accepted by the USEPA...

The concentrations of polycyclic aromatic hydrocarbons and heavy metals were evaluated in shallow sediments, water, fish and seabird samples from the Cispata Bay, Colombia. The heavy metals concentrations in the sediment was in the following order: Cu > Pb > Hg > Cd. The heavy metal concentration was different (p < 0.05) in juvenile and adult birds...

p>Ectoparasite control in the livestock sector involves the use of chemicals to prevent production losses. In small farms that produce milk in the Córdoba department, the use of the pumping system for the cattle bath is common between farmers. In this work, cypermethrin degradation efficiency was evaluated in three lab-scale subsurface flow constru...

Ectoparasite control in the livestock sector involves the use of chemicals to prevent production losses. In small farms that produce milk in the Córdoba department, the use of the pumping system for the cattle bath is common between farmers. In this work, cypermethrin degradation efficiency was evaluated in three lab-scale subsurface flow construct...

The performance of horizontal subsurface flow constructed wetlands in the removal of micropollutants from a wastewater treatment plant effluent was evaluated at mesocosm level. Fifteen mesocosms were studied following a modified Latin Square experimental design with six additional points. Three variables at three levels were studied: porous media -...

Objective. The aim of this study was to monitor the total mercury (T-Hg) concentrations in fish from the Urrá reservoir, after impoundment. Materials and methods. Five fish species at different trophic levels were sampled from 2004 to 2009 and analyzed by cold-vapor atomic absorption spectroscopy for T-Hg concentrations in muscle tissue. Water qual...

After decades of intensive application to the croplands of the lower and middle Sinu River valleys in Cordoba Department, an area of important agricultural activity, organochlorine pesticides (OCPs) were officially banned from agricultural use in Colombia in the 1990s. Until now, no studies of the OCP residue levels and their vertical distributions...

La contaminación de las fuentes de agua superficial y subterránea representa una problemática real y de interés general, aún más cuando el uso de estos recursos está asociado con la producción de alimentos, como es el caso de la región de la subcuenca del Rio Nexapa, donde los problemas se agudizan por el uso de las fuentes de agua natural para el...

En este trabajo se presentan algunas experiencias relacionadas con el uso de los humedales de tratamiento (HT) para mitigar la contaminación del agua superficial en la subcuenca del río Nexapa, en el suroeste del estado de Puebla, México. Se describe la remoción de la carga orgánica (DBO5) y de la fragancia galaxolide (GAL), como modelo de contamin...

Commercial-grade limestone used in whitewashing which is a low-cost material has been used as a catalyst for the synthesis of fatty acid methyl esters. The catalyst was characterized by differential thermal analysis/thermogravimetric analysis, X-ray diffraction, and Fourier transform infrared spectroscopy for the study of its physicochemical nature...

In present communication, waste frying oil (WFO) has been used as a feedstock for biodiesel synthesis. WFO, procured from a local Indian restaurant possessed an acid value of 0.84 mg KOH/g, which is low enough for single step transesterification reaction. Biodiesel (fatty acid methyl esters) was washed after transesterification reaction and the yie...

The removal efficiency of selected emerging pollutants, total (TotCol) and faecal (FecCol) coliforms in surface (SF) and subsurface (SSF) flow constructed wetlands (CWs) was compared. The pilot plant (located in southeastern Mexico) consisted of eight CWs: four with SF and four with SSF. Two cells of each type were planted with Typha sp. and two we...

FAX +57 2434362313. Molecular markers selection for biomass burning impact assessment Recibido 21 mayo 2007, revisado 25 septiembre 2007, aceptado 19 noviembre 2007 Molecular markers selection to assess the impact of biomass burning. Abstract Biomass burning, a common agricultural practice for sugarcane harvesting, increases atmospheric particulate...

Resumen Como parte del estudio de la geoquímica del medio ambiente en ecosistemas de la región de Izúcar de Matamoros se realizó la caracterización del material particulado en la matriz aire y las emisiones industriales aplicando el concepto de estudio integral para el control de la contaminación, desde la fuente de emisión hasta las soluciones tec...

Palabras claves: contaminación, suelos, hidrocarburos RESUMEN La gestión medioambiental de las empresas de CUPET, surgida en los últimos años, ha generado la necesidad de solucionar los problemas del manejo y la disposición de los residuales sólidos de origen orgánico que se generan en los tanques de almacenamiento de productos ligeros y pesados (f...