TREATMENT OF WASTEWATER FROM THE ELECTROPLATING INDUSTRY USING INTENSIFIED WETLANDS AT THE MICROCOSM LEVEL

TREATMENT OF WASTEWATER FROM THE ELECTROPLATING INDUSTRY USING INTENSIFIED WETLANDS AT THE MICROCOSM LEVEL

Constructed wetland (CW) prototypes were tested as a non-conventional treatment of wastewater from an electroplating industry, the systems worked with the subsurface vertical flow with water recirculation. Two types of substrates were evaluated, natural zeolite and metallurgical slag. The prototypes were designated as PCW-Z and PCW-E, respectively. The PCWs were vegetated with Phragmites australis and worked for 29 weeks including a plant adaptation period and a treatment period. Industrial wastewater was added for 16 weeks and the initial and final values of copper, COD, TSS, detergents, electrical conductivity, and pH were evaluated. The contact of the wastewater with the plants generated a reduction in their population, at the end of the process the PCW-Z had an average loss of 9 plants, however, new shoots continued to be generated, showing the high resistance of the plants to copper-contaminated effluents. The wastewater treatment results showed copper removal percentages of 95.8 % for PCW-Z and 96.7 % for PCW-E, values corresponding to the first four weeks of treatment. After 16 weeks, the percentage of removal decreased in a range of 0 to 10% on average for both substrates. PCWs proved to be efficient in the removal of TSS and detergents during the whole treatment process with percentages of 95.1 % and 94.8 %, respectively. Based on the results, it can be said that PCWs are efficient in the treatment of wastewater from the electroplating industry when low copper concentrations are present; however, a key aspect to be taken care of is the high salinity that this type of water contains since it was not possible to reduce the concentration with these systems, generating negative effects on the plants and the substrate; therefore, prior treatment is recommended before applying the effluent to the constructed wetlands.

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Main Authors: González-Pereyra, Daniela, Cisneros-Almazán , Rodolfo, Cisneros-Pérez, Rodolfo, Guadiana-Alvarado, Z. Arturo, Soto-Peña, Gerson A.
Format: Digital revista
Language:spa
Published: Instituto de Ingeniería, Universidad Nacional Autónoma de México 2022
Online Access:https://www.revistas.unam.mx/index.php/aidis/article/view/80492
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language spa
format Digital
author González-Pereyra, Daniela
Cisneros-Almazán , Rodolfo
Cisneros-Pérez, Rodolfo
Guadiana-Alvarado, Z. Arturo
Soto-Peña, Gerson A.
spellingShingle González-Pereyra, Daniela
Cisneros-Almazán , Rodolfo
Cisneros-Pérez, Rodolfo
Guadiana-Alvarado, Z. Arturo
Soto-Peña, Gerson A.
TREATMENT OF WASTEWATER FROM THE ELECTROPLATING INDUSTRY USING INTENSIFIED WETLANDS AT THE MICROCOSM LEVEL
author_facet González-Pereyra, Daniela
Cisneros-Almazán , Rodolfo
Cisneros-Pérez, Rodolfo
Guadiana-Alvarado, Z. Arturo
Soto-Peña, Gerson A.
author_sort González-Pereyra, Daniela
title TREATMENT OF WASTEWATER FROM THE ELECTROPLATING INDUSTRY USING INTENSIFIED WETLANDS AT THE MICROCOSM LEVEL
title_short TREATMENT OF WASTEWATER FROM THE ELECTROPLATING INDUSTRY USING INTENSIFIED WETLANDS AT THE MICROCOSM LEVEL
title_full TREATMENT OF WASTEWATER FROM THE ELECTROPLATING INDUSTRY USING INTENSIFIED WETLANDS AT THE MICROCOSM LEVEL
title_fullStr TREATMENT OF WASTEWATER FROM THE ELECTROPLATING INDUSTRY USING INTENSIFIED WETLANDS AT THE MICROCOSM LEVEL
title_full_unstemmed TREATMENT OF WASTEWATER FROM THE ELECTROPLATING INDUSTRY USING INTENSIFIED WETLANDS AT THE MICROCOSM LEVEL
title_sort treatment of wastewater from the electroplating industry using intensified wetlands at the microcosm level
description Constructed wetland (CW) prototypes were tested as a non-conventional treatment of wastewater from an electroplating industry, the systems worked with the subsurface vertical flow with water recirculation. Two types of substrates were evaluated, natural zeolite and metallurgical slag. The prototypes were designated as PCW-Z and PCW-E, respectively. The PCWs were vegetated with Phragmites australis and worked for 29 weeks including a plant adaptation period and a treatment period. Industrial wastewater was added for 16 weeks and the initial and final values of copper, COD, TSS, detergents, electrical conductivity, and pH were evaluated. The contact of the wastewater with the plants generated a reduction in their population, at the end of the process the PCW-Z had an average loss of 9 plants, however, new shoots continued to be generated, showing the high resistance of the plants to copper-contaminated effluents. The wastewater treatment results showed copper removal percentages of 95.8 % for PCW-Z and 96.7 % for PCW-E, values corresponding to the first four weeks of treatment. After 16 weeks, the percentage of removal decreased in a range of 0 to 10% on average for both substrates. PCWs proved to be efficient in the removal of TSS and detergents during the whole treatment process with percentages of 95.1 % and 94.8 %, respectively. Based on the results, it can be said that PCWs are efficient in the treatment of wastewater from the electroplating industry when low copper concentrations are present; however, a key aspect to be taken care of is the high salinity that this type of water contains since it was not possible to reduce the concentration with these systems, generating negative effects on the plants and the substrate; therefore, prior treatment is recommended before applying the effluent to the constructed wetlands.
publisher Instituto de Ingeniería, Universidad Nacional Autónoma de México
publishDate 2022
url https://www.revistas.unam.mx/index.php/aidis/article/view/80492
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spelling rev-aidis-mx-article-804922022-12-06T18:51:46Z TREATMENT OF WASTEWATER FROM THE ELECTROPLATING INDUSTRY USING INTENSIFIED WETLANDS AT THE MICROCOSM LEVEL TRATAMIENTO DE AGUAS RESIDUALES DE LA INDUSTRIA GALVANOPLÁSTICA MEDIANTE HUMEDALES INTENSIFICADOS A NIVEL MICROCOSMOS TRATAMIENTO DE AGUAS RESIDUALES DE LA INDUSTRIA GALVANOPLÁSTICA MEDIANTE HUMEDALES INTENSIFICADOS A NIVEL MICROCOSMOS González-Pereyra, Daniela Cisneros-Almazán , Rodolfo Cisneros-Pérez, Rodolfo Guadiana-Alvarado, Z. Arturo Soto-Peña, Gerson A. cobre escoria metalúrgica Phragmites australis zeolita copper metallurgical slag Phragmites australis zeolite cobre escoria metalúrgica Phragmites australis zeolita Constructed wetland (CW) prototypes were tested as a non-conventional treatment of wastewater from an electroplating industry, the systems worked with the subsurface vertical flow with water recirculation. Two types of substrates were evaluated, natural zeolite and metallurgical slag. The prototypes were designated as PCW-Z and PCW-E, respectively. The PCWs were vegetated with Phragmites australis and worked for 29 weeks including a plant adaptation period and a treatment period. Industrial wastewater was added for 16 weeks and the initial and final values of copper, COD, TSS, detergents, electrical conductivity, and pH were evaluated. The contact of the wastewater with the plants generated a reduction in their population, at the end of the process the PCW-Z had an average loss of 9 plants, however, new shoots continued to be generated, showing the high resistance of the plants to copper-contaminated effluents. The wastewater treatment results showed copper removal percentages of 95.8 % for PCW-Z and 96.7 % for PCW-E, values corresponding to the first four weeks of treatment. After 16 weeks, the percentage of removal decreased in a range of 0 to 10% on average for both substrates. PCWs proved to be efficient in the removal of TSS and detergents during the whole treatment process with percentages of 95.1 % and 94.8 %, respectively. Based on the results, it can be said that PCWs are efficient in the treatment of wastewater from the electroplating industry when low copper concentrations are present; however, a key aspect to be taken care of is the high salinity that this type of water contains since it was not possible to reduce the concentration with these systems, generating negative effects on the plants and the substrate; therefore, prior treatment is recommended before applying the effluent to the constructed wetlands. Se probaron prototipos de humedales construidos (CW por sus siglas en inglés) como tratamiento no convencional del agua residual de una industria galvanoplástica, los sistemas trabajaron con flujo vertical subsuperficial con recirculación de agua. Se evaluaron dos tipos de sustratos, zeolita natural y escoria metalúrgica. Los prototipos se denominaron como PCW-Z y PCW-E, respectivamente. Los PCW fueron vegetados con Phragmites australis y trabajaron durante 29 semanas incluyendo un periodo de adaptación de las plantas y un periodo tratamiento. Durante 16 semanas se adicionó agua residual industrial evaluando los valores iniciales y finales de cobre, DQO, SST, detergentes, conductividad eléctrica y pH. El contacto del agua residual con las plantas generó una reducción en su población, al final del proceso los PCW-Z tuvieron una pérdida promedio de 9 plantas, sin embargo, siguieron generándose nuevos brotes, dejando ver a alta resistencia de las plantas frente a efluentes contaminados con cobre. Los resultados de la depuración del agua residual mostraron porcentajes de remoción de cobre del 95.8 % para PCW-Z y 96.7 % para los PCW-E, valores correspondientes a las primeras cuatro semanas de tratamiento. Después de 16 semanas el porcentaje de remoción disminuyó en un rango de 0 a 10% en promedio para ambos sustratos. Los PCW resultaron ser eficientes en la remoción de SST y detergentes durante todo el proceso de tratamiento con porcentajes de 95.1 % y 94.8 %, respectivamente. Basado en los resultados se puede decir que los PCW resultan eficientes en el tratamiento de agua residual de la industria galvanoplástica cundo se presentan bajas concentraciones de cobre, sin embargo, un aspecto clave que se debe cuidar es la alta salinidad que contiene este tipo de agua, ya que no fue posible disminuir la concentración con estos sistemas generando efectos negativos sobre las plantas y el sustrato, por lo que se recomienda un tratamiento previo antes aplicar el efluente a los humedales construidos. Se probaron prototipos de humedales construidos (CW por sus siglas en inglés) como tratamiento no convencional del agua residual de una industria galvanoplástica, los sistemas trabajaron con flujo vertical subsuperficial con recirculación de agua. Se evaluaron dos tipos de sustratos, zeolita natural y escoria metalúrgica. Los prototipos se denominaron como PCW-Z y PCW-E, respectivamente. Los PCW fueron vegetados con Phragmites australis y trabajaron durante 29 semanas incluyendo un periodo de adaptación de las plantas y un periodo tratamiento. Durante 16 semanas se adicionó agua residual industrial evaluando los valores iniciales y finales de cobre, DQO, SST, detergentes, conductividad eléctrica y pH. El contacto del agua residual con las plantas generó una reducción en su población, al final del proceso los PCW-Z tuvieron una pérdida promedio de 9 plantas, sin embargo, siguieron generándose nuevos brotes, dejando ver a alta resistencia de las plantas frente a efluentes contaminados con cobre. Los resultados de la depuración del agua residual mostraron porcentajes de remoción de cobre del 95.8 % para PCW-Z y 96.7 % para los PCW-E, valores correspondientes a las primeras cuatro semanas de tratamiento. Después de 16 semanas el porcentaje de remoción disminuyó en un rango de 0 a 10% en promedio para ambos sustratos. Los PCW resultaron ser eficientes en la remoción de SST y detergentes durante todo el proceso de tratamiento con porcentajes de 95.1 % y 94.8 %, respectivamente. Basado en los resultados se puede decir que los PCW resultan eficientes en el tratamiento de agua residual de la industria galvanoplástica cundo se presentan bajas concentraciones de cobre, sin embargo, un aspecto clave que se debe cuidar es la alta salinidad que contiene este tipo de agua, ya que no fue posible disminuir la concentración con estos sistemas generando efectos negativos sobre las plantas y el sustrato, por lo que se recomienda un tratamiento previo antes aplicar el efluente a los humedales construidos. Instituto de Ingeniería, Universidad Nacional Autónoma de México 2022-12-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículos evaluados por pares Artículos evaluados por pares Artículos evaluados por pares application/pdf https://www.revistas.unam.mx/index.php/aidis/article/view/80492 10.22201/iingen.0718378xe.2022.15.3.80492 Revista AIDIS de Ingeniería y Ciencias Ambientales. Investigación, desarrollo y práctica; Vol. 15, No. 3, 6 de diciembre de 2022; 1080-1094 Revista AIDIS de Ingeniería y Ciencias Ambientales. Investigación, desarrollo y práctica; Vol. 15, No. 3, 6 de diciembre de 2022; 1080-1094 Revista AIDIS de Ingeniería y Ciencias Ambientales. Investigación, desarrollo y práctica; Vol. 15, No. 3, 6 de diciembre de 2022; 1080-1094 0718-378X 10.22201/iingen.0718378xe.2022.15.3 spa https://www.revistas.unam.mx/index.php/aidis/article/view/80492/73871 Derechos de autor 2022 Revista AIDIS de Ingeniería y Ciencias Ambientales. Investigación, desarrollo y práctica https://creativecommons.org/licenses/by-nc-nd/4.0

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