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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 ...
Environmental risk assessment of low molecule benzotriazoles in urban road rainwaters in Poland

Struk-Sokołowska, Joanna; Gwoździej-Mazur, Joanna; Jurczyk, Łukasz; Jadwiszczak, Piotr; Kotowska, Urszula; Piekutin, Janina; Canales, Fausto; Kaźmierczak, Bartosz (ElsevierNetherlands, 2022-08-15)

This study aimed to identify and quantify benzotriazoles (BTRs) emissions from road traffic and paved areas in an urban environment. Heterocyclic organic compounds BTRs are an emerging threat, under-recognized and ...
Evaluation of areal monthly average precipitation estimates from MERRA2 and ERA5 reanalysis in a colombian caribbean basin

Vega-Durán, Jean; Escalante-Castro, Brigitte; Canales, Fausto; Acuña Robles, Guillermo Jesús; Kaźmierczak, Bartosz (MDPI Multidisciplinary Digital Publishing InstituteSwitzerland, 2021-10-29)

Global reanalysis dataset estimations of climate variables constitute an alternative for overcoming data scarcity associated with sparsely and unevenly distributed hydrometeorological networks often found in developing ...

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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.

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Environmental risk assessment of low molecule benzotriazoles in urban road rainwaters in Poland
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Struk-Sokołowska, Joanna | 2022-08-15

This study aimed to identify and quantify benzotriazoles (BTRs) emissions from road traffic and paved areas in an urban environment. Heterocyclic organic compounds BTRs are an emerging threat, under-recognized and under-analyzed in most environmental and water legislation. They are hazardous, potentially mutagenic, and carcinogenic micropollutants, not susceptible to effective biodegradation, and they move easily through the trophic chain, contaminating the environment and water resources. Traffic activities are a common source of BTR emissions in the urban environment, directly polluting human habitats through the different routes and numerous vehicles circulating in the cities. Using twelve heterogeneous locations scattered over a metropolitan area in Poland as a case study, this research analyzed the presence of BTRs in water samples from runoff produced from rainwater and snowmelt. 1H-BTR, 4Me-BTR, 5Me-BTR and 5Cl-BTR were detected in the tested runoff water. 5Cl-BTR was present in all samples and in the highest concentrations reaching 47,000 ng/L. Risk quotients calculated on the basis of the determined concentrations indicate that the highest environmental risk is associated with the presence of 5Cl-BTR and the sum of 4Me-BTR and 5Me-BTR, and the most sensitive organisms are bacteria and invertebrates. The results indicate that it is possible to associate the occurrence of these contaminants with the type of cover, traffic intensity, and vehicle type.

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Evaluation of areal monthly average precipitation estimates from MERRA2 and ERA5 reanalysis in a colombian caribbean basin
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Vega-Durán, Jean | 2021-10-29

Global reanalysis dataset estimations of climate variables constitute an alternative for overcoming data scarcity associated with sparsely and unevenly distributed hydrometeorological networks often found in developing countries. However, reanalysis datasets require detailed validation to determine their accuracy and reliability. This paper evaluates the performance of MERRA2 and ERA5 regarding their monthly rainfall products, comparing their areal precipitation averages with estimates based on ground measurement records from 49 rain gauges managed by the Institute of Hydrology, Meteorology, and Environmental Studies (IDEAM) and the Thiessen polygons method in the Sinu River basin, Colombia. The performance metrics employed in this research are the correlation coefficient, the bias, the normalized root mean square error (NRMSE), and the Nash–Sutcliffe efficiency (NSE). The results show that ERA5 generally outperforms MERRA2 in the study area. However, both reanalyses consistently overestimate the monthly averages calculated from IDEAM records at all time and spatial scales. The negative NSE values indicate that historical monthly averages from IDEAM records are better predictors than both MERRA2 and ERA5 rainfall products.

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

Environmental risk assessment of low molecule benzotriazoles in urban road rainwaters in Poland ﻿

Evaluation of areal monthly average precipitation estimates from MERRA2 and ERA5 reanalysis in a colombian caribbean basin ﻿

Envíos recientes

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

Environmental risk assessment of low molecule benzotriazoles in urban road rainwaters in Poland

Evaluation of areal monthly average precipitation estimates from MERRA2 and ERA5 reanalysis in a colombian caribbean basin

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

Environmental risk assessment of low molecule benzotriazoles in urban road rainwaters in Poland

Evaluation of areal monthly average precipitation estimates from MERRA2 and ERA5 reanalysis in a colombian caribbean basin