Treatment of agar waste expired by composting process

Treatment of agar waste expired by composting process

Waste generated in the laboratories of higher education institutions (HEIs) is often considered hazardous due to its physicochemical characteristics, as well as other materials that represent a high organic load if inadequately disposed. The objective of this work, was to treat residual agar generated in the microbiology laboratories of the multifunctional building of the Academic Division of Biological Sciences (DACBiol), through traditional composting. To know the viability of the composting process, was worked with two compost piles made of 95.95 kg sludge and 141.5 kg plant residues (a total of 237.45 kg), to one of them (stack 1), 25 kg of waste agar was added. Physicochemical and analytical parameters were monitored for 63 days. A maximum temperature of 57.71±5.07 °C was obtained, in the agar cell and in the second cell of 50.23±4.30 °C. The initial pH values were 5.93±0.02 and 7.02±0.01, stabilizing at the end with values of 8.00 ± 0.07 and 7.95±0.11. The electrical conductivity presented final values of 6.87±0.46 dS m-1 and 3.02±0.09 dS m-1. Composting is an optional technology for the treatment of residual agar since the values of pH and temperature were not affected during the process, only a increase of electrical conductivity is presented. In addition, DACBiol, for having a certification in environmental quality and have a program of waste management of laboratories, must meet the objective of minimizing the generation of waste.

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Main Authors: Sosa Olivier, José Aurelio, Laines Canepa, José Ramón, De La Cruz Pérez, Ana Guadalupe, Martínez Domínguez, Lucia Guadalupe, Pérez Méndez, Miguel Ángel, Bautista Gómez, Jorge Abisaí, Hérnandez Lázaro, Cristina
Format: Digital revista
Language:spa
Published: Universidad Nacional de Colombia - Sede Bogotá - Instituto de Biotecnología 2017
Online Access:https://revistas.unal.edu.co/index.php/biotecnologia/article/view/65970
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country Colombia
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libraryname Sistema Nacional de Bibliotecas de la UNAL
language spa
format Digital
author Sosa Olivier, José Aurelio
Laines Canepa, José Ramón
De La Cruz Pérez, Ana Guadalupe
Martínez Domínguez, Lucia Guadalupe
Pérez Méndez, Miguel Ángel
Bautista Gómez, Jorge Abisaí
Hérnandez Lázaro, Cristina
spellingShingle Sosa Olivier, José Aurelio
Laines Canepa, José Ramón
De La Cruz Pérez, Ana Guadalupe
Martínez Domínguez, Lucia Guadalupe
Pérez Méndez, Miguel Ángel
Bautista Gómez, Jorge Abisaí
Hérnandez Lázaro, Cristina
Treatment of agar waste expired by composting process
author_facet Sosa Olivier, José Aurelio
Laines Canepa, José Ramón
De La Cruz Pérez, Ana Guadalupe
Martínez Domínguez, Lucia Guadalupe
Pérez Méndez, Miguel Ángel
Bautista Gómez, Jorge Abisaí
Hérnandez Lázaro, Cristina
author_sort Sosa Olivier, José Aurelio
title Treatment of agar waste expired by composting process
title_short Treatment of agar waste expired by composting process
title_full Treatment of agar waste expired by composting process
title_fullStr Treatment of agar waste expired by composting process
title_full_unstemmed Treatment of agar waste expired by composting process
title_sort treatment of agar waste expired by composting process
description Waste generated in the laboratories of higher education institutions (HEIs) is often considered hazardous due to its physicochemical characteristics, as well as other materials that represent a high organic load if inadequately disposed. The objective of this work, was to treat residual agar generated in the microbiology laboratories of the multifunctional building of the Academic Division of Biological Sciences (DACBiol), through traditional composting. To know the viability of the composting process, was worked with two compost piles made of 95.95 kg sludge and 141.5 kg plant residues (a total of 237.45 kg), to one of them (stack 1), 25 kg of waste agar was added. Physicochemical and analytical parameters were monitored for 63 days. A maximum temperature of 57.71±5.07 °C was obtained, in the agar cell and in the second cell of 50.23±4.30 °C. The initial pH values were 5.93±0.02 and 7.02±0.01, stabilizing at the end with values of 8.00 ± 0.07 and 7.95±0.11. The electrical conductivity presented final values of 6.87±0.46 dS m-1 and 3.02±0.09 dS m-1. Composting is an optional technology for the treatment of residual agar since the values of pH and temperature were not affected during the process, only a increase of electrical conductivity is presented. In addition, DACBiol, for having a certification in environmental quality and have a program of waste management of laboratories, must meet the objective of minimizing the generation of waste.
publisher Universidad Nacional de Colombia - Sede Bogotá - Instituto de Biotecnología
publishDate 2017
url https://revistas.unal.edu.co/index.php/biotecnologia/article/view/65970
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spelling oai:www.revistas.unal.edu.co:article-659702017-09-01T20:09:19Z Treatment of agar waste expired by composting process Tratamiento de residuos de agar caduco mediante el proceso de compostaje Sosa Olivier, José Aurelio Laines Canepa, José Ramón De La Cruz Pérez, Ana Guadalupe Martínez Domínguez, Lucia Guadalupe Pérez Méndez, Miguel Ángel Bautista Gómez, Jorge Abisaí Hérnandez Lázaro, Cristina electric conductivity aerobic oxidation pH waste treatment conductividad eléctrica oxidación aerobia pH residuos tratamiento Waste generated in the laboratories of higher education institutions (HEIs) is often considered hazardous due to its physicochemical characteristics, as well as other materials that represent a high organic load if inadequately disposed. The objective of this work, was to treat residual agar generated in the microbiology laboratories of the multifunctional building of the Academic Division of Biological Sciences (DACBiol), through traditional composting. To know the viability of the composting process, was worked with two compost piles made of 95.95 kg sludge and 141.5 kg plant residues (a total of 237.45 kg), to one of them (stack 1), 25 kg of waste agar was added. Physicochemical and analytical parameters were monitored for 63 days. A maximum temperature of 57.71±5.07 °C was obtained, in the agar cell and in the second cell of 50.23±4.30 °C. The initial pH values were 5.93±0.02 and 7.02±0.01, stabilizing at the end with values of 8.00 ± 0.07 and 7.95±0.11. The electrical conductivity presented final values of 6.87±0.46 dS m-1 and 3.02±0.09 dS m-1. Composting is an optional technology for the treatment of residual agar since the values of pH and temperature were not affected during the process, only a increase of electrical conductivity is presented. In addition, DACBiol, for having a certification in environmental quality and have a program of waste management of laboratories, must meet the objective of minimizing the generation of waste. Los residuos generados en los laboratorios de las instituciones de educación superior (IES) suelen ser considerados peligrosos por sus características fisicoquímicas, al igual de otros materiales que representan una alta carga orgánica si son dispuestos inadecuadamente. El objetivo del presente trabajo, fue tratar agar residual generado en los laboratorios de microbiología del edificio multifuncional de la División Académica de Ciencias Biológicas (DACBiol), mediante compostaje tradicional. Con la finalidad de conocer la viabilidad del proceso de compostaje, se trabajó con dos pilas de composta conformadas de 95.95 kg lodos y 141.5 kg residuos vegetales (un total de 237.45 kg), a una de ellas (pila 1), se le añadió 25 kg de agar caduco. Se monitorearon los parámetros fisicoquímicos y analíticos durante 63 días. Se obtuvo una temperatura máxima de 57.71±5.07 °C, en la pila con agar y en la segunda pila de 50.23±4.30 °C. Los valores de pH inicial fueron de 5.93±0.02 y 7.02±0.01, estabilizándose al final con valores de 8.00±0.07 y 7.95±0.11. La conductividad eléctrica presentó valores finales de 6.87±0.46 dS m-1 y 3.02±0.09 dS m-1. El compostaje es una tecnología opcional para el tratamiento de agar residual ya que los valores de pH y temperatura no se afectaron durante el proceso, solo se presenta un valor elevado de conductividad eléctrica. Además, la DACBiol, por contar con una certificación en calidad ambiental y contar con un programa de manejo de residuos de laboratorios, debe cumplir el objetivo de minimizar la generación de residuos. Universidad Nacional de Colombia - Sede Bogotá - Instituto de Biotecnología 2017-01-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares application/vnd.openxmlformats-officedocument.wordprocessingml.document application/pdf https://revistas.unal.edu.co/index.php/biotecnologia/article/view/65970 10.15446/rev.colomb.biote.v19n1.65970 Revista Colombiana de Biotecnología; Vol. 19 No. 1 (2017); 101-107 Revista Colombiana de Biotecnología; Vol. 19 Núm. 1 (2017); 101-107 1909-8758 0123-3475 spa https://revistas.unal.edu.co/index.php/biotecnologia/article/view/65970/doc https://revistas.unal.edu.co/index.php/biotecnologia/article/view/65970/pdf Derechos de autor 2017 Revista Colombiana de Biotecnología https://creativecommons.org/licenses/by/4.0

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