Chemical substances present in discharge water generated by laundry industry: Analytical monitoring

To our knowledge, precise data concerning the pollution in terms of qualitative and quantitative fluctuations in discharge water from the laundry sector have seldom been reported. This study investigated the chemical composition of the discharge water from a laundry industry. Over 160 chemical subst...

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Main Authors: Dario Lacalamita, Chiara Mongioví, Grégorio Crini
Format: Article
Language:English
Published: Elsevier 2023-12-01
Series:Water Science and Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1674237023000807
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author Dario Lacalamita
Chiara Mongioví
Grégorio Crini
author_facet Dario Lacalamita
Chiara Mongioví
Grégorio Crini
author_sort Dario Lacalamita
collection DOAJ
description To our knowledge, precise data concerning the pollution in terms of qualitative and quantitative fluctuations in discharge water from the laundry sector have seldom been reported. This study investigated the chemical composition of the discharge water from a laundry industry. Over 160 chemical substances and 15 standard water parameters were monitored. The results showed that the discharge water presented both inorganic and organic polycontamination with a high degree of qualitative and quantitative variability. However, of all monitored substances, only five metals (Al, Cu, Fe, Sr, and Zn), five minerals (P, Ca, K, Na, and S), and alkylphenols were systematically present and quantifiable. For a daily average water flow of 129 m3, the released metal flux was 356 g/d. Substances, such as trichloromethane, brominated diphenyl ether (BDE) 47, and fluorides, were occasionally found and quantified. Other substances, such as chlorophenols, organo-tins, and pesticides were never identified. All the samples had quantifiable levels in the chemical oxygen demand (COD), biological oxygen demand (BOD), and hydrocarbons. Only the concentrations of Zn (8.3 g/d), Cu (21.4 g/d), and BOD (57.4 g/d) were close to or above the regulatory values: 74.0 g/d for Zn, 9.0 g/d for Cu, and 57.0 kg/d for BOD. The data obtained from this study are useful to the choice of additional treatments for the reduction of pollutant fluxes.
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spelling doaj.art-c75875d4803e4f3993060f2d86a8a9372023-11-19T04:34:31ZengElsevierWater Science and Engineering1674-23702023-12-01164324332Chemical substances present in discharge water generated by laundry industry: Analytical monitoringDario Lacalamita0Chiara Mongioví1Grégorio Crini2Chrono-environnement Laboratory, University of Franche-Comté, 16 Route de Gray, Besançon 25000, FranceChrono-environnement Laboratory, University of Franche-Comté, 16 Route de Gray, Besançon 25000, FranceCorresponding author.; Chrono-environnement Laboratory, University of Franche-Comté, 16 Route de Gray, Besançon 25000, FranceTo our knowledge, precise data concerning the pollution in terms of qualitative and quantitative fluctuations in discharge water from the laundry sector have seldom been reported. This study investigated the chemical composition of the discharge water from a laundry industry. Over 160 chemical substances and 15 standard water parameters were monitored. The results showed that the discharge water presented both inorganic and organic polycontamination with a high degree of qualitative and quantitative variability. However, of all monitored substances, only five metals (Al, Cu, Fe, Sr, and Zn), five minerals (P, Ca, K, Na, and S), and alkylphenols were systematically present and quantifiable. For a daily average water flow of 129 m3, the released metal flux was 356 g/d. Substances, such as trichloromethane, brominated diphenyl ether (BDE) 47, and fluorides, were occasionally found and quantified. Other substances, such as chlorophenols, organo-tins, and pesticides were never identified. All the samples had quantifiable levels in the chemical oxygen demand (COD), biological oxygen demand (BOD), and hydrocarbons. Only the concentrations of Zn (8.3 g/d), Cu (21.4 g/d), and BOD (57.4 g/d) were close to or above the regulatory values: 74.0 g/d for Zn, 9.0 g/d for Cu, and 57.0 kg/d for BOD. The data obtained from this study are useful to the choice of additional treatments for the reduction of pollutant fluxes.http://www.sciencedirect.com/science/article/pii/S1674237023000807LaundryDischarge waterChemical analysisWater parameterChemical substance
spellingShingle Dario Lacalamita
Chiara Mongioví
Grégorio Crini
Chemical substances present in discharge water generated by laundry industry: Analytical monitoring
Water Science and Engineering
Laundry
Discharge water
Chemical analysis
Water parameter
Chemical substance
title Chemical substances present in discharge water generated by laundry industry: Analytical monitoring
title_full Chemical substances present in discharge water generated by laundry industry: Analytical monitoring
title_fullStr Chemical substances present in discharge water generated by laundry industry: Analytical monitoring
title_full_unstemmed Chemical substances present in discharge water generated by laundry industry: Analytical monitoring
title_short Chemical substances present in discharge water generated by laundry industry: Analytical monitoring
title_sort chemical substances present in discharge water generated by laundry industry analytical monitoring
topic Laundry
Discharge water
Chemical analysis
Water parameter
Chemical substance
url http://www.sciencedirect.com/science/article/pii/S1674237023000807
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