Effect of Wastewater Discharge From Coffee Processing Plant on River Water Quality, Sidama Region, South Ethiopia

In Ethiopia, most of the coffee processing plants are generating large amounts of wastewater with high pollutant concentrations and discharge directly into the water bodies untreated or partially treated. The main objective of this study was to assess the effects of coffee wastewater discharged to r...

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Autores principales: Wubalem Genanaw, Girum Gebremeskel Kanno, Dawit Derese, Mekonnen Birhanie Aregu
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Publicado: SAGE Publishing 2021
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Acceso en línea:https://doaj.org/article/6bda75b1954d47e8aaab57f08334459f
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spelling oai:doaj.org-article:6bda75b1954d47e8aaab57f08334459f2021-12-01T00:03:44ZEffect of Wastewater Discharge From Coffee Processing Plant on River Water Quality, Sidama Region, South Ethiopia1178-630210.1177/11786302211061047https://doaj.org/article/6bda75b1954d47e8aaab57f08334459f2021-11-01T00:00:00Zhttps://doi.org/10.1177/11786302211061047https://doaj.org/toc/1178-6302In Ethiopia, most of the coffee processing plants are generating large amounts of wastewater with high pollutant concentrations and discharge directly into the water bodies untreated or partially treated. The main objective of this study was to assess the effects of coffee wastewater discharged to river water quality using physicochemical parameters and macro-invertebrate indices. This study was conducted from November to the end of December 2019. Ten wastewater and river water samples were taken from coffee the processing plant and river. The macro-invertebrate samples were collected by kick sampling technique using a standard hand net. Shannon and Simpson diversity indices were examined at 3 sampling stations. The Pielou evenness index was also determined. It was found that except for TDS all the parameters of the raw wastewater and river water did not comply with the international discharge limit. The mean concentration of Faro coffee processing plant wastewater were BOD 5 (2409.6 ± 173.1 mg/L), COD (4302 ± 437 mg/L), TSS (2824.6 ± 428.4 mg/L), TDS (3226 ± 623.6 mg/L), and TS (4183.3 ± 432.9 mg/L). Whereas from Bokaso coffee processing plant were BOD 5 (3770 ± 604.4 mg/L), COD (4082.6 ± 921.9 mg/L), TSS (2766 ± 501.7 mg/L), TDS (3017 ± 747.6 mg/L), and TS (3874 ± 471.1 mg/L). A total of 392 macroinvertebrates belonging to 24 families and 7 orders were collected. The benthos assemblage communities in this river were 40, 56, and 296 at downstream 1, downstream 2, and upstream respectively. The value of the Simpson diversity index varies from 0.4 to 0.75. In the same manner, the value of the Shannon diversity index also varied from 0.5 to 1.36. Most of the physicochemical parameters of the raw wastewater were beyond the national and international discharge limits. The quality of Orsha river water downstream was more adversely affected compared to upstream.Wubalem GenanawGirum Gebremeskel KannoDawit DereseMekonnen Birhanie AreguSAGE PublishingarticleEnvironmental sciencesGE1-350Public aspects of medicineRA1-1270ENEnvironmental Health Insights, Vol 15 (2021)
institution DOAJ
collection DOAJ
language EN
topic Environmental sciences
GE1-350
Public aspects of medicine
RA1-1270
spellingShingle Environmental sciences
GE1-350
Public aspects of medicine
RA1-1270
Wubalem Genanaw
Girum Gebremeskel Kanno
Dawit Derese
Mekonnen Birhanie Aregu
Effect of Wastewater Discharge From Coffee Processing Plant on River Water Quality, Sidama Region, South Ethiopia
description In Ethiopia, most of the coffee processing plants are generating large amounts of wastewater with high pollutant concentrations and discharge directly into the water bodies untreated or partially treated. The main objective of this study was to assess the effects of coffee wastewater discharged to river water quality using physicochemical parameters and macro-invertebrate indices. This study was conducted from November to the end of December 2019. Ten wastewater and river water samples were taken from coffee the processing plant and river. The macro-invertebrate samples were collected by kick sampling technique using a standard hand net. Shannon and Simpson diversity indices were examined at 3 sampling stations. The Pielou evenness index was also determined. It was found that except for TDS all the parameters of the raw wastewater and river water did not comply with the international discharge limit. The mean concentration of Faro coffee processing plant wastewater were BOD 5 (2409.6 ± 173.1 mg/L), COD (4302 ± 437 mg/L), TSS (2824.6 ± 428.4 mg/L), TDS (3226 ± 623.6 mg/L), and TS (4183.3 ± 432.9 mg/L). Whereas from Bokaso coffee processing plant were BOD 5 (3770 ± 604.4 mg/L), COD (4082.6 ± 921.9 mg/L), TSS (2766 ± 501.7 mg/L), TDS (3017 ± 747.6 mg/L), and TS (3874 ± 471.1 mg/L). A total of 392 macroinvertebrates belonging to 24 families and 7 orders were collected. The benthos assemblage communities in this river were 40, 56, and 296 at downstream 1, downstream 2, and upstream respectively. The value of the Simpson diversity index varies from 0.4 to 0.75. In the same manner, the value of the Shannon diversity index also varied from 0.5 to 1.36. Most of the physicochemical parameters of the raw wastewater were beyond the national and international discharge limits. The quality of Orsha river water downstream was more adversely affected compared to upstream.
format article
author Wubalem Genanaw
Girum Gebremeskel Kanno
Dawit Derese
Mekonnen Birhanie Aregu
author_facet Wubalem Genanaw
Girum Gebremeskel Kanno
Dawit Derese
Mekonnen Birhanie Aregu
author_sort Wubalem Genanaw
title Effect of Wastewater Discharge From Coffee Processing Plant on River Water Quality, Sidama Region, South Ethiopia
title_short Effect of Wastewater Discharge From Coffee Processing Plant on River Water Quality, Sidama Region, South Ethiopia
title_full Effect of Wastewater Discharge From Coffee Processing Plant on River Water Quality, Sidama Region, South Ethiopia
title_fullStr Effect of Wastewater Discharge From Coffee Processing Plant on River Water Quality, Sidama Region, South Ethiopia
title_full_unstemmed Effect of Wastewater Discharge From Coffee Processing Plant on River Water Quality, Sidama Region, South Ethiopia
title_sort effect of wastewater discharge from coffee processing plant on river water quality, sidama region, south ethiopia
publisher SAGE Publishing
publishDate 2021
url https://doaj.org/article/6bda75b1954d47e8aaab57f08334459f
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