Producción Limpia Y Biorremediación Para Disminución De La Contaminación Por Cromo en La Industria De Curtiembres

Benítez-Campo, Neyla

doi:10.25100/ays.v1i1.4335

Cited by 7 publications

(6 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…En América Latina las curtiembres causan contaminación especialmente en el agua dando dificultades ambientales, intoxicando la biodiversidad por la descarga de altas concentraciones de material inorgánico especialmente cromo hexavalente y la realidad ecuatoriana de algunas ciudades donde el sustento económico prima, ante todo, las curtiembres no presentan planes de cuidado y protección ambiental en cumplimiento de la normativa vigente para crear un compromiso social y responsable [22]. Por otra parte, es importante incluir medidas de recuperación del cromo con enfoque preventivo basándose en programas de producción más limpia (PML) en el sector de las curtiembres [23]. La estrategia de PML es un punto de encuentro entre la productividad y el manejo ambiental en la que se aplica en concepto de prevención de la contaminación y eficiencia energética mediante la implementación de las tres R's (Reciclaje, Reúso, Recuperación) tratamiento y disposición final de desechos [24].…”

Section: Resultados Y Discusiónunclassified

Hexavalent Chromium in Waters for Human Consumption and Irrigation in the Guano Canton

Castillo-López

Salas-Cisneros

Logroño-Veloz

et al. 2021

espoch

View full text Add to dashboard Cite

Introduction: Considering the geographical location and industrial activities of the county Guano, which lies on an aquifer that supply water for both consumption and crop irrigation, it is necessary to examine the levels of chromium (Cr) in its watershed and tributaries. Objective: To evaluate the amount of Cr existing in the surface waters of the Guano river basin and aquifer. Methods: Several samples of the river and aquifer were taken and the amount of Cr present was measured. Using Z-test, Cr levels found in the water were compared with those recommended as normal by the World Health Organization (WHO), national standards of the Texto Unificado de Legislación Secundaria de Medio Ambiente (TULSMA) and the Servicio Ecuatoriano de Normalización 1108 ( INEN 1108). Results: Relatively high Cr values were found when compared with those established by the WHO. However, they were normal when compared with TULSMA and INEN 1108. Conclusion: The levels of Cr found in the Guano river and the aquifer were higher than those recommended by the WHO. It is recommended to replicate our findings in order to corroborate the results and to take appropriate measures in order to reduce water contamination. Keywords: chromium, water, Guano, Ecuador. Resumen Introducción: Considerando la ubicación geográfica y actividades industriales del cantón Guano el cual yace sobre un acuífero que sustenta las necesidades de agua tanto para consumo y riego de la población es necesario examinar los niveles de Cromo (Cr) en su vertiente como sus afluentes. Objetivo: Evaluar la cantidad de Cr existente en las aguas superficiales de la cuenca del río Guano y en pequeños ojos de agua provenientes del acuífero. Métodos: Se tomó varias muestras de agua del río y ojos de agua y se midió la cantidad de Cr presente. Por medio de la prueba Z se comparó los niveles de Cr con los recomendados como normales por la Organización Mundial de la Salud (OMS), normas nacionales del Texto Unificado de Legislación Secundaria de Medio Ambiente (TULSMA) y Servicio Ecuatoriano de Normalización 1108 (INEN 1108). Resultados: Se encontró valores relativamente altos de Cr al compararlos con los establecidos por la OMS. Sin embargo, estos se encontraron dentro de rangos normales al compararlos con TULSMA e INEN 1108. Conclusiones: Los niveles de Cr encontrados en el río Guano y ojos de agua del acuífero son superiores a los recomendados por la OMS. Se recomienda replicar los hallazgos para corroborar los resultados y tomar las medidas adecuadas para reducir la contaminación del agua. Palabras clave: cromo, agua, Guano, Ecuador.

show abstract

Section: Resultados Y Discusiónunclassified

Hexavalent Chromium in Waters for Human Consumption and Irrigation in the Guano Canton

Castillo-López

Salas-Cisneros

Logroño-Veloz

et al. 2021

espoch

View full text Add to dashboard Cite

show abstract

“…This option demonstrated not only technical and environmental advantages but also social benefits by decreasing water contamination and providing the possibility of increasing the number of jobs generated to improve the treatment process efficiency. Not only does the cost of the technology decrease, but greater economic benefits can result by applying CP, with a focus on pollution prevention, better resources management and minimal production of pollutant wastes, since this alternative reduces the consumption of raw materials and produces effluents with low chromium concentrations that can be treated by biological methods [2,30].…”

Section: Discussionmentioning

confidence: 99%

“…These companies were able to reduce their environmental impact, improve employee working conditions and increase the productivity and quality of their products by introducing improvements based on an ecoefficiency program, thus demonstrating the benefits of the interaction between the productive process and the care for the natural environment. The new approach proposed in this paper, which complements CP practices with chromium bioremediation, is a novel one for the case of the tanneries in Colombia [30]. These methods can be replicated very well in other settings where a complex scenario predominates, characterized by elements that interact with the surrounding environment and flows of matter, energy, economic resources or information and influenced by regional, national and international policies, according to Garcia [31].…”

Section: Discussionmentioning

confidence: 99%

Selection of a sustainable alternative for the reduction of chromium pollution in leather tanning wastewater

Campo

Salamarca

2019

DYNA

View full text Add to dashboard Cite

Various solutions that have been proposed to address the contamination problem of leather tanning wastewater at El Cerrito (Valle del Cauca, Colombia), have generated conflicts between stakeholders. Therefore, with the purpose of selecting a sustainable alternative for the reduction of chromium present in liquid effluents of the local tanning sector, the Social Multi-Criteria Evaluation (SMCE) method was used to analyze three proposed treatment options. These consisted of a physicochemical treatment based on MgO precipitation and acid re-dissolution, a biotechnological treatment with native yeasts coupled to Cleaner Production (CP) and a non-treatment option. During the evaluation, the social, economic, environmental and technical criteria considered, allowed for the selection of the biotechnology alternative, as the treatment option with the highest sustainability. The physicochemical alternative demonstrated a low acceptance while the non-treatment option proved unfeasible, by affecting the natural environment and social component and was favored only by the economic criterion

show abstract

“…Elmis García Zare, Doctor 1 , Patricia Isabel Mejía Pardo, Magister 1 , Segundo Eloy Soto Abanto, Doctor 1 , Noelia Patricia Rodriguez Paredes, Magister 1 and Marco Antonio Cerna Vásquez, Magister 1 1 Universidad Cesar Vallejo, Perú, ejgarciaz@ucvvirtual.edu.pe, pamejiap@ucvvirtual.edu.pe, ssotoa@ucv.edu.pe, nrodriguezpa95@ucvvirtual.edu.pe, mcernav@ucvvirtual.edu.pe…”

Section: Concentración De áCido Clorhídrico Y Tiempo Para Maximizar L...mentioning

confidence: 99%

Hydrochloric acid concentration and time to maximize lead and cadmium removal in laboratory wastewater

Zare¹,

Pardo²,

Abanto³

et al. 2023

Proceedings of the 21th LACCEI International Multi-Conference for Engineering, Education and Technology (LACCEI 2023): “Leaders

View full text Add to dashboard Cite

The bioadsorption treatment was performed on the wastewater from a university chemical analysis laboratory using Chondracanthus chamissoi algae, commonly known as "mococho," as the biomass. The study factors included the concentration of hydrochloric acid ranging from 1 to 2 N and contact times ranging from 2 to 7 hours in a continuous flow bioreactor. The objective was to determine the combination of factors that maximizes the removal of Lead (Pb) and Cadmium (Cd). A 2k factorial design with central points and the response surface method were used. From the results, it was found that the combination of factors, hydrochloric acid concentration (HCl), and contact time that maximizes the removal of Pb ions is 2.5 N and 6.8 hours, while the combination of factors that maximizes the removal of Cd ions is 2.1 N and 22 hours. It was determined that the study factors generate statistically significant differences in the removal of Pb compared to Cd.

show abstract

Producción Limpia Y Biorremediación Para Disminución De La Contaminación Por Cromo en La Industria De Curtiembres

Cited by 7 publications

References 9 publications

Hexavalent Chromium in Waters for Human Consumption and Irrigation in the Guano Canton

Hexavalent Chromium in Waters for Human Consumption and Irrigation in the Guano Canton

Selection of a sustainable alternative for the reduction of chromium pollution in leather tanning wastewater

Hydrochloric acid concentration and time to maximize lead and cadmium removal in laboratory wastewater

Contact Info

Product

Resources

About