Mostrando ítems 1-4 de 4

Application of a 2k–p fractional experimental design in coagulation-flocculation processes in the treatment of wastewater from a slaughterhouse

Carpintero Durango, Javier Andrés; Villa-Dominguez, Jennifer; Tavera Quiroz, Maria Jose; Tavera, Humberto; Kaźmierczak, Bartosz; Fábregas Villegas, Jonathan; Canales, Fausto (MDPI AGSwitzerland, 2022-08-21)

Determining the optimal dose of coagulant required to perform flocculation is critical in most water treatment plants’ planning and operation. This study implemented a 2k–p fractional factorial design of experiments to ...
Assessment of carwash wastewater reclamation potential based on household water treatment technologies

Canales, Fausto; Plata-Solano, Diego; Cantero Rodelo, Ruben Dario; Ávila Pereira, Yoleimy; Díaz-Martínez, Karina; Carpintero Durango, Javier Andrés; Kaźmierczak, Bartosz; Tavera-Quiroz, Humberto (Elsevier BVNetherlands, 2021)

This paper assesses a bench-scale carwash wastewater treatment system's removal efficiency based on coagulation-flocculation and a household-type activated carbon filter and water ozonator. For the experiment, the wastewater ...
Computational fluid dynamicsmodeling of microchannels cooling for electronic microdevices

Fábregas, Jonathan; Santamaria, Henry; Buelvas, Edgardo; Perez, Saul; Díaz, Carlos; Carpintero Durango, Javier Andrés; Mendoza, Ricardo; Villa, Jennifer (Malaysia, 2022-01-04)

A simulation of the cooling of electronic devices was carried out by means of microchannels, using water as a coolant to dissipate the heat generated from a computer processor, and thus stabilize its optimum operating ...
Evaluation of walking as sustainable transport and energy generator - case study: Barranquilla, Colombia

Mattos-Rodríguez, Adriana Carolina; Figueroa, Miguel; Mora, Otto; Carpintero Durango, Javier Andrés; Villadiego Rojas, Leydis; Rodríguez Fernández, Andrea Carolina; Barreto Jiménez, Jorge Andrés; Parada de la Cruz, Marlon Jesús (Horizon Research PublishingUnited States, 2022)

Pedestrian traffic in public space is associated with a level of service (LOS) that qualitatively describes the operating conditions according to the spaces available in square meters per pedestrian. Daily, people need to ...

Envíos recientes

Application of a 2k–p fractional experimental design in coagulation-flocculation processes in the treatment of wastewater from a slaughterhouse
...
Carpintero Durango, Javier Andrés | 2022-08-21

Determining the optimal dose of coagulant required to perform flocculation is critical in most water treatment plants’ planning and operation. This study implemented a 2k–p fractional factorial design of experiments to identify the factors influencing the color decrease of wastewater from a slaughterhouse. The variables assessed were the velocity gradient, residence time, primary coagulant dosage, chlorine dosage, and coagulation adjuvant dosage. The results indicate that the primary coagulant dose and the velocity gradient significantly affect the samples’ color and that the other factors can be run at a low technical-economic level to start up the water treatment plant. The fractional factorial design allowed reducing the number of experimental points without affecting the minimum information required to identify which factors are significant in reducing the color of a wastewater sample.

LEER
Assessment of carwash wastewater reclamation potential based on household water treatment technologies
...
Canales, Fausto | 2021

This paper assesses a bench-scale carwash wastewater treatment system's removal efficiency based on coagulation-flocculation and a household-type activated carbon filter and water ozonator. For the experiment, the wastewater that went through an oil/water separator (OWS) from a medium-sized carwash facility located in a dense commercial area in Barranquilla, Colombia, was collected. The study evaluates the following parameters: water quality indicators recommended by the U.S. Environmental Protection Agency and literature related to carwash water reclamation. The treatment results are compared to related regional studies in Latin America and Colombian legislation in force. Experimental results evidence that reclaimed water's characteristics are similar to those of a groundwater source for most analyzed variables, and the system was able to reduce organic matter concentrations considerably. Regarding the organoleptic characteristics, the system eliminated foaming and generated a transparent and odorless product. The coliform test showed that reclaimed water has an average total coliform count of around 5800 MPN/100 ml, which is above the proposed health risk limit per most international standards for water reuse; but as it complies with industrial wastewater and non-food irrigation purposes in Colombia, additional disinfection is recommended depending on the reuse purpose. The results from this research may assist future carwash wastewater reclamation regulations in Colombia and the Latin American region.

LEER
Computational fluid dynamicsmodeling of microchannels cooling for electronic microdevices
...
Fábregas, Jonathan | 2022-01-04

A simulation of the cooling of electronic devices was carried out by means of microchannels, using water as a coolant to dissipate the heat generated from a computer processor, and thus stabilize its optimum operating temperature. For the development of this study, computational fluid mechanics modeling was established in order to determine the temperature profiles, pressure profiles, and velocity behavior of the working fluid in the microchannel. In the results of the study, the operating temperatures of the computer processor were obtained, in the ranges of 303 K to 307 K, with fluid velocities in the microchannels of 5 m/s, apressure drop of 633.7 kPa, and a factor of safety of the design of the microchannel of 15. From the results, the improvement of the heat transfer in a cooling system of electronic deviceswas evidenced when using a coolant as a working fluid compared to the cooling by forced air flow traditional

LEER
Evaluation of walking as sustainable transport and energy generator - case study: Barranquilla, Colombia
...
Mattos-Rodríguez, Adriana Carolina | 2022

Pedestrian traffic in public space is associated with a level of service (LOS) that qualitatively describes the operating conditions according to the spaces available in square meters per pedestrian. Daily, people need to travel to their workplaces, schools, and universities, or to carry out any other activity using means of transportation such as walking, bicycle, car, or public transport, among others. In many cases, at least one walkable path is required regardless of the type of transport means selected to make a trip according to its accessibility. This article presents the analysis of piezoelectric power generation on the main street in the city of Barranquilla, Atlántico (Colombia), considering the pedestrian volume and the level of service of the sidewalks, according to the geometry of the road an energy consumption is estimated, then this data is compared with pedestrian accessibility indices (walkability index) of the city, with the aim of defining the functionality and applicability of the measure for the generation of energy from innovative and environmentally friendly sources. The results show that the city requires substantial modifications to make it more walkable, promoting active transportation and the inclusion of piezoelectric power generation strategies is an option to make a public space potentially sustainable.

LEER

Listar por autor "f6d978e99948c03a86a5c4e89e680a5b"

Application of a 2k–p fractional experimental design in coagulation-flocculation processes in the treatment of wastewater from a slaughterhouse ﻿

Assessment of carwash wastewater reclamation potential based on household water treatment technologies ﻿

Computational fluid dynamicsmodeling of microchannels cooling for electronic microdevices ﻿

Evaluation of walking as sustainable transport and energy generator - case study: Barranquilla, Colombia ﻿

Envíos recientes

Application of a 2k–p fractional experimental design in coagulation-flocculation processes in the treatment of wastewater from a slaughterhouse

Assessment of carwash wastewater reclamation potential based on household water treatment technologies

Computational fluid dynamicsmodeling of microchannels cooling for electronic microdevices

Evaluation of walking as sustainable transport and energy generator - case study: Barranquilla, Colombia

Application of a 2k–p fractional experimental design in coagulation-flocculation processes in the treatment of wastewater from a slaughterhouse

Assessment of carwash wastewater reclamation potential based on household water treatment technologies

Computational fluid dynamicsmodeling of microchannels cooling for electronic microdevices

Evaluation of walking as sustainable transport and energy generator - case study: Barranquilla, Colombia