Solar homogeneous catalysis to the removal of organic matter from slaughterhouse effluents undergone to a prior biological process

This study shows the effectiveness of the wastewater treatment from a municipal slaughterhouse that has undergone a previous biological treatment applying a sequence of stages, reaching a 75% of elimination of the chemical oxygen demand (COD) using sedimentation in combination with coagulation–flocc...

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Main Authors: J. A. Hurtado, L. F. Valdez, C. J. Escudero
Format: Article
Language:English
Published: IWA Publishing 2021-11-01
Series:Water Science and Technology
Subjects:
Online Access:http://wst.iwaponline.com/content/84/9/2242
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author J. A. Hurtado
L. F. Valdez
C. J. Escudero
author_facet J. A. Hurtado
L. F. Valdez
C. J. Escudero
author_sort J. A. Hurtado
collection DOAJ
description This study shows the effectiveness of the wastewater treatment from a municipal slaughterhouse that has undergone a previous biological treatment applying a sequence of stages, reaching a 75% of elimination of the chemical oxygen demand (COD) using sedimentation in combination with coagulation–flocculation, using 0.5 g/L FeCl3 which is one of the best known inorganic coagulants. Then, the elimination of COD was around 98% adding the Fenton process in which 1,000 mg/L H2O2 and FeSO4 were used. In addition to the COD, other water quality parameters were measured to evaluate the level of purification of the test samples, such as solids of different types, pH, DOC and so on. With the above process, it can be noted that the Fenton process produced a slight improvement in the effluent quality by using a solar concentrator in the now-called photo-Fenton process, reaching around 99% of COD removal (0.36 g/L), 91% of total suspended solids (0.32 g/L) and 89% of dissolved organic carbon (0.20 g/L). These results were the best achieved within a proposed treatment train for this type of complex wastewater. Moreover, this last part of the process adds an improvement by the usage of renewable energy sources such as sunlight. HIGHLIGHT This article deals with work on real wastewater treatment under real working conditions, such as the use of sunlight. In addition, a parabolic solar concentrator built from reused material was used. So the project has elements of sustainability.;
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spelling doaj.art-7928d3cc454b4529bd395ea1966d2de32022-12-21T23:13:20ZengIWA PublishingWater Science and Technology0273-12231996-97322021-11-018492242225110.2166/wst.2021.438438Solar homogeneous catalysis to the removal of organic matter from slaughterhouse effluents undergone to a prior biological processJ. A. Hurtado0L. F. Valdez1C. J. Escudero2 Departament of Biotechnology and Environmental, Universidad Autónoma de Guadalajara, Av. Patria 1201, 45129 Zapopan, Mexico Departament of Biotechnology and Environmental, Universidad Autónoma de Guadalajara, Av. Patria 1201, 45129 Zapopan, Mexico Departament of Biotechnology and Environmental, Universidad Autónoma de Guadalajara, Av. Patria 1201, 45129 Zapopan, Mexico This study shows the effectiveness of the wastewater treatment from a municipal slaughterhouse that has undergone a previous biological treatment applying a sequence of stages, reaching a 75% of elimination of the chemical oxygen demand (COD) using sedimentation in combination with coagulation–flocculation, using 0.5 g/L FeCl3 which is one of the best known inorganic coagulants. Then, the elimination of COD was around 98% adding the Fenton process in which 1,000 mg/L H2O2 and FeSO4 were used. In addition to the COD, other water quality parameters were measured to evaluate the level of purification of the test samples, such as solids of different types, pH, DOC and so on. With the above process, it can be noted that the Fenton process produced a slight improvement in the effluent quality by using a solar concentrator in the now-called photo-Fenton process, reaching around 99% of COD removal (0.36 g/L), 91% of total suspended solids (0.32 g/L) and 89% of dissolved organic carbon (0.20 g/L). These results were the best achieved within a proposed treatment train for this type of complex wastewater. Moreover, this last part of the process adds an improvement by the usage of renewable energy sources such as sunlight. HIGHLIGHT This article deals with work on real wastewater treatment under real working conditions, such as the use of sunlight. In addition, a parabolic solar concentrator built from reused material was used. So the project has elements of sustainability.;http://wst.iwaponline.com/content/84/9/2242coagulation–flocculationfentonorganic matterslaughterhouse wastewatersolar photo-fenton
spellingShingle J. A. Hurtado
L. F. Valdez
C. J. Escudero
Solar homogeneous catalysis to the removal of organic matter from slaughterhouse effluents undergone to a prior biological process
Water Science and Technology
coagulation–flocculation
fenton
organic matter
slaughterhouse wastewater
solar photo-fenton
title Solar homogeneous catalysis to the removal of organic matter from slaughterhouse effluents undergone to a prior biological process
title_full Solar homogeneous catalysis to the removal of organic matter from slaughterhouse effluents undergone to a prior biological process
title_fullStr Solar homogeneous catalysis to the removal of organic matter from slaughterhouse effluents undergone to a prior biological process
title_full_unstemmed Solar homogeneous catalysis to the removal of organic matter from slaughterhouse effluents undergone to a prior biological process
title_short Solar homogeneous catalysis to the removal of organic matter from slaughterhouse effluents undergone to a prior biological process
title_sort solar homogeneous catalysis to the removal of organic matter from slaughterhouse effluents undergone to a prior biological process
topic coagulation–flocculation
fenton
organic matter
slaughterhouse wastewater
solar photo-fenton
url http://wst.iwaponline.com/content/84/9/2242
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AT lfvaldez solarhomogeneouscatalysistotheremovaloforganicmatterfromslaughterhouseeffluentsundergonetoapriorbiologicalprocess
AT cjescudero solarhomogeneouscatalysistotheremovaloforganicmatterfromslaughterhouseeffluentsundergonetoapriorbiologicalprocess