José Luis Sánchez‐Salas

Universidad de las Américas Puebla

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Erick R. Bandala

University of Nevada, Reno

M.A. Méndez-Rojas

Universidad de las Américas Puebla

Marco A. Quiróz

Universidade Federal do Rio Grande do Norte

Joel Molina‐Reyes

National Institute of Astrophysics, Optics and Electronics

Oscar Daniel Máynez Navarro

Universidad de las Américas Puebla

Peter Setlow

UConn Health

Deborah Xanat Flores‐Cervantes

Universidad de las Américas Puebla

Alejandra Romero‐Morán

Benemérita Universidad Autónoma de Puebla

T. Palacios-Hernández

Center for Devices and Radiological Health

Aarón Pérez‐Benítez

Benemérita Universidad Autónoma de Puebla

Cooperative Institutions

Universidad de las Américas Puebla

Instituto Politécnico Nacional

Center for Research and Advanced Studies of the National Polytechnic Institute

Benemérita Universidad Autónoma de Puebla

Universidad Nacional Autónoma de México

UConn Health

National Institute of Astrophysics, Optics and Electronics

Tecnológico de Monterrey

Universidade do Estado do Rio Grande do Norte

Consejo Superior de Investigaciones Científicas

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Biogranulation as an Option for Wastewater Treatment Improvement

CRC Press eBooks (2024)

M.A. Gomez-Gallegos Ernestina Moreno Rodriguez Erick R. Bandala José Luis Sánchez‐Salas

The rise in world population demands increased use of goods and services. Water and food demand to satisfy the increasing population is increasing significantly and, as a consequence, high-quality water is needed in big quantities. The increased population will also use and discard different kinds of waste. Particularly, one of the biggest concerns is wastewater coming from different anthropogenic sources (e.g., urban agriculture, textile industry, automotive industry) with high pollutant load, affecting receiving water bodies and risking contamination of freshwater sources. To improve wastewater quality for reuse, different strategies are required to clean significant water volumes, and cost-effective technologies are preferred able to reduce the environmental impact of these contaminated effluents in less time and renew water as an essential commodity. One of these new technologies is biogranulation, able to improve wastewater treatment by removing different types of organic matter along with micronutrients (e.g., nitrogen, phosphorus). The special characteristic of these biogranules is their microbial consortium with a capacity to use different wastewater types with different pollutants and generate the microenvironments needed for such tasks within the biogranule. Because of the well-defined and compact shape of biogranules, it possesses different advantages such as biomass retention conditions, high sedimentation rates, and short sedimentation times, allowing a fast and reduced suspended solids in wastewater effluents. This review offers an updated vision of biogranulation methodology, its applications, and perspectives.

10.1201/9781003441007-13

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Key parameters to enhance the antibacterial effect of graphene oxide in solution

RSC Advances (2021)

Grecia Guadalupe Montes-Duarte Guillermo Tostado-Blázquez Kelly L.S. Castro Joyce R. Araújo Carlos A. Achete

Graphene oxide (GO) has lately become an interesting biomaterial due to its stunning properties and versatility, its claimed antimicrobial activity holds promise for potential health applications. Nonetheless, multiple reports investigating GO antibacterial activity lack rigor and uniformity on several aspects which are crucial when evaluating this effect. In this work, we highlight and address these parameters: morphology of the materials, exposure time, exposure methodology and concentration. We investigate the effect of GO and GO-based metallic composites observing these parameters on two pathogenic bacteria. Our nanomaterials have been characterized by means of SEM, EDX, DLS, FTIR and Raman spectroscopies. Escherichia coli and Salmonella Typhimurium suspended in saline solutions (no growth medium) have been exposed to GO (lateral size = 100 nm), silver nanoparticles, ceria nanoparticles, GO/silver and GO/ceria aqueous solutions for 0, 5, 15, 30, 60 and 90 minutes, before plating. Our experiments indicate that no prior exposure of the materials to bacteria (0 min) results in poor inactivation rates independently of concentration, while increasing times of interaction enhance inactivation. Moreover, our experiments show concentration-dependent results showing higher activity for concentrations of 100 μg mL-1; and prove that 30 minutes of exposure are sufficient to deploy the antimicrobial effects of these materials. GO possesses the lowest inactivation rate, and the presence of silver and ceria nanoparticles in the GO surface boosts its antimicrobial effect. Thus, the enhancement of the antibacterial activity of graphene oxide relies on 30 minutes of interaction in water, concentration of 100 μg mL-1, and its decoration by silver/ceria nanoparticles.

Nanomaterials

Silver nanoparticle

10.1039/d0ra07945f

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Citations (12)

Identification of collagenese, NADPH:oxidoreductase like and a putative transcriptional regulatory sequences of Entamoeba histolytica

Parasitology International (1998)

Gerardo Pérez‐Ponce de León Ma Isabel Salazar José Luis Sánchez‐Salas M. Coral Del Val Muñoz

Identification

10.1016/s1383-5769(98)80269-9

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Study on the photocatalytic activity of titanium dioxide nanostructures: Nanoparticles, nanotubes and ultra-thin films

Catalysis Today (2018)

Joel Molina‐Reyes Alejandra Romero‐Morán Héctor Uribe-Vargas Beatriz López Ruíz José Luis Sánchez‐Salas

Titanium Dioxide

10.1016/j.cattod.2018.05.033

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Citations (42)

Solar photocatalytic disinfection of water contaminated with Escherichia coli using nitrogen-doped titanium dioxide.

José Luis Sánchez‐Salas Juán Manuel Barbarín Castillo Erick R. Bandala

Titanium Dioxide

Water disinfection

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Differential display of mRNAs from Entamoeba histolytica during electron dense granules secretion.

PubMed (1997)

Ma Isabel Salazar Arturo Ortega Priyanka Das José Luis Sánchez‐Salas Muñoz Ml

Entamoeba

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Citations (3)

Enhanced photocatalytic bacterial inactivation of atomic-layer deposited anatase-TiO2 thin films on rutile-TiO2 nanotubes

Photochemical & Photobiological Sciences (2020)

Joel Molina‐Reyes Alejandra Romero‐Morán José Luis Sánchez‐Salas

Rutile

Titanium Dioxide

10.1039/c9pp00348g

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Citations (7)

Solar Water Disinfection Using NF-codoped TiO2 Photocatalysis: Estimation of Scaling-up Parameters

International Journal of Chemical Reactor Engineering (2013)

Jordana H. Castillo Alba Bueno Miguel Pelaez José Luis Sánchez‐Salas Dionysios D. Dionysiou

Abstract In this work, the use of previously reported figures-of-merit is proposed for the comparison of solar-driven photocatalytic disinfection technologies using NF-codoped TiO 2 . These figures-of-merit are based on the solar collection area per order ( A CO ) through the understanding of the overall kinetic behavior of the disinfection process under the tested conditions: pH 7, four different catalyst concentrations (0.0, 0.10, 0.25 and 50 mgmL − 1 ) and two solar radiation types (UV+visible and visible radiation alone). The results provide a direct link to the accumulated energy efficiency (the lowest the value the highest the efficiency) of the inactivation process, allowing the comparison between the efficiencies of a broad range of processes evaluating different experimental conditions.

Visible spectrum

Figure of Merit

10.1515/ijcre-2012-0051

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Petrochemical effluent treatment using natural coagulants and an aerobic biofilter

Advances in environmental research (2013)

Erick R. Bandala Juan Bernardo Tiro Mariana Lujan Francisco J. Camargo José Luis Sánchez‐Salas

Coagulation-flocculation (CF) was tested coupled with an aerobic biofilter to reduce total petroleum hydrocarbon (TPHs) concentration and toxicity from petrochemical wastewater. The efficiency of the process was followed using turbidity and chemical oxygen demand (COD). The biofilter was packed with a basaltic waste (tezontle) and inoculated with a bacterial consortium. Toxicity test were carried out using Lactuca sativa var. capitata seeds. Best results for turbidity removal were obtained using alum. Considerable turbidity removal was obtained when using Opuntia spp. COD removal with alum was 25%, for Opuntia powder it was 36%. The application of the biofilter allowed the removal of 70% of the remaining TPHs after 30 days with a biodegradation rate (BDR) value 47 $mgL^{-1}d^{-1}$. COD removal was slightly higher with BDR value 63 $mgL^{-1}d^{-1}$. TPH kinetics allowed a degradation rate constant equal to $4.05{\times}10^{-2}d^{-1}$. COD removal showed similar trend with $k=4.23{\times}10^{-2}d^{-1}$. Toxicity reduction was also successfully achieved by the combined treatment process.

Biofilter

Turbidity

Alum

10.12989/aer.2013.2.3.229

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Citations (9)

ANOVA analysis of lignin degradation by the different ligninolytic yeasts

Zenodo (CERN European Organization for Nuclear Research) (2022)

Anaid Bautista‐Guerrero Rene A. Lara‐Diaz Valérie Pihen Erick R. Bandala José Luis Sánchez‐Salas

The ANOVA analysis shows us that, according to the type of treatment, that is, yeast, the amount of degraded lignin will be.

Degradation

10.5281/zenodo.7023388

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