Assessment of the environmental impact of urban wastewater and the treatment capacity of the Saida activated sludge plant (North-western Algeria) on the occasion of Eid Al-Adha

Introduction/purpose: The slaughter of livestock during Eid Al-Adha generates significant quantities of wastewater rich in organic pollutants. However, the specific impact of these effluents on water quality remains poorly documented. This study aimed to assess the pollutant loads discharged into th...

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Main Authors: Souad Zairi, Boumediene Meddah, Miloud Slimani, Asmaa Rahmani
Format: Article
Language:English
Published: University of Defence in Belgrade 2025-04-01
Series:Vojnotehnički Glasnik
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Online Access:https://scindeks.ceon.rs/article.aspx?artid=0042-84692502575Z
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author Souad Zairi
Boumediene Meddah
Miloud Slimani
Asmaa Rahmani
author_facet Souad Zairi
Boumediene Meddah
Miloud Slimani
Asmaa Rahmani
author_sort Souad Zairi
collection DOAJ
description Introduction/purpose: The slaughter of livestock during Eid Al-Adha generates significant quantities of wastewater rich in organic pollutants. However, the specific impact of these effluents on water quality remains poorly documented. This study aimed to assess the pollutant loads discharged into the Saida Valley during Eid Al-Adha and evaluate the treatment capacity of the local activated sludge wastewater treatment plant (WWTP). Methods: Water samples were collected from different points in the sewerage system at various times throughout the day during three Eid Al-Adha events (2017, 2018, and 2019). Several physico-chemical parameters were analyzed, including temperature, pH, electrical conductivity, chemical oxygen demand (COD), five-day biochemical oxygen demand (BOD ₅), total suspended solids (TSS), ammonium, nitrates, nitrites, and phosphorus. The measured pollution levels were compared to the Algerian regulatory standards to assess compliance. Results: The analyses revealed a sharp increase in pollution levels in the morning, followed by a gradual decline in the evening. High pollutant loads from slaughter effluents significantly degraded the water quality of the Saïda River. The organic pollution index classified these discharges as very high pollution. The excessive input of organic matter and nutrients resulted in oxygen depletion and eutrophication risks. Conclusion: The discharge of untreated slaughter wastewater poses serious environmental and public health risks. Strengthening wastewater management strategies during Eid Al-Adha, enhancing treatment processes at the Saïda WWTP, and enforcing strict environmental regulations are essential to mitigating these impacts.
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spelling doaj-art-252bd6566da44b599eab9b0700133d2d2025-08-20T02:25:12ZengUniversity of Defence in BelgradeVojnotehnički Glasnik0042-84692217-47532025-04-0173257560410.5937/vojtehg73-55420Assessment of the environmental impact of urban wastewater and the treatment capacity of the Saida activated sludge plant (North-western Algeria) on the occasion of Eid Al-AdhaSouad Zairi0https://orcid.org/0000-0001-8119-7033Boumediene Meddah1https://orcid.org/0000-0001-7946-012XMiloud Slimani2https://orcid.org/0000-0003-1191-3924Asmaa Rahmani3https://orcid.org/0000-0003-3267-4862Mustapha Stambouli University, Faculty of Natural and Life Sciences, Department of Biology, Biology Laboratory, Mascara, People's Democratic Republic of Algeriab Mustapha Stambouli University, Faculty of Natural and Life Sciences, Department of Biology, Biology Laboratory, Mascara, People's Democratic Republic of AlgeriaDr. Tahar Moulay University of Saida, Faculty of Sciences, Department of Biology, Biology Laboratory, Saida, People's Democratic Republic of AlgeriaDr. Tahar Moulay University of Saida, Faculty of Technology, Department of Civil Engineering and Hydraulics, Modeling and Calculation Methods Laboratory, Saida, People's Democratic Republic of AlgeriaIntroduction/purpose: The slaughter of livestock during Eid Al-Adha generates significant quantities of wastewater rich in organic pollutants. However, the specific impact of these effluents on water quality remains poorly documented. This study aimed to assess the pollutant loads discharged into the Saida Valley during Eid Al-Adha and evaluate the treatment capacity of the local activated sludge wastewater treatment plant (WWTP). Methods: Water samples were collected from different points in the sewerage system at various times throughout the day during three Eid Al-Adha events (2017, 2018, and 2019). Several physico-chemical parameters were analyzed, including temperature, pH, electrical conductivity, chemical oxygen demand (COD), five-day biochemical oxygen demand (BOD ₅), total suspended solids (TSS), ammonium, nitrates, nitrites, and phosphorus. The measured pollution levels were compared to the Algerian regulatory standards to assess compliance. Results: The analyses revealed a sharp increase in pollution levels in the morning, followed by a gradual decline in the evening. High pollutant loads from slaughter effluents significantly degraded the water quality of the Saïda River. The organic pollution index classified these discharges as very high pollution. The excessive input of organic matter and nutrients resulted in oxygen depletion and eutrophication risks. Conclusion: The discharge of untreated slaughter wastewater poses serious environmental and public health risks. Strengthening wastewater management strategies during Eid Al-Adha, enhancing treatment processes at the Saïda WWTP, and enforcing strict environmental regulations are essential to mitigating these impacts.https://scindeks.ceon.rs/article.aspx?artid=0042-84692502575Zeid al-adhaactivated sludge wwtpbiodegradabilitypollutant loadreceiving environmentwastewater
spellingShingle Souad Zairi
Boumediene Meddah
Miloud Slimani
Asmaa Rahmani
Assessment of the environmental impact of urban wastewater and the treatment capacity of the Saida activated sludge plant (North-western Algeria) on the occasion of Eid Al-Adha
Vojnotehnički Glasnik
eid al-adha
activated sludge wwtp
biodegradability
pollutant load
receiving environment
wastewater
title Assessment of the environmental impact of urban wastewater and the treatment capacity of the Saida activated sludge plant (North-western Algeria) on the occasion of Eid Al-Adha
title_full Assessment of the environmental impact of urban wastewater and the treatment capacity of the Saida activated sludge plant (North-western Algeria) on the occasion of Eid Al-Adha
title_fullStr Assessment of the environmental impact of urban wastewater and the treatment capacity of the Saida activated sludge plant (North-western Algeria) on the occasion of Eid Al-Adha
title_full_unstemmed Assessment of the environmental impact of urban wastewater and the treatment capacity of the Saida activated sludge plant (North-western Algeria) on the occasion of Eid Al-Adha
title_short Assessment of the environmental impact of urban wastewater and the treatment capacity of the Saida activated sludge plant (North-western Algeria) on the occasion of Eid Al-Adha
title_sort assessment of the environmental impact of urban wastewater and the treatment capacity of the saida activated sludge plant north western algeria on the occasion of eid al adha
topic eid al-adha
activated sludge wwtp
biodegradability
pollutant load
receiving environment
wastewater
url https://scindeks.ceon.rs/article.aspx?artid=0042-84692502575Z
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AT boumedienemeddah assessmentoftheenvironmentalimpactofurbanwastewaterandthetreatmentcapacityofthesaidaactivatedsludgeplantnorthwesternalgeriaontheoccasionofeidaladha
AT miloudslimani assessmentoftheenvironmentalimpactofurbanwastewaterandthetreatmentcapacityofthesaidaactivatedsludgeplantnorthwesternalgeriaontheoccasionofeidaladha
AT asmaarahmani assessmentoftheenvironmentalimpactofurbanwastewaterandthetreatmentcapacityofthesaidaactivatedsludgeplantnorthwesternalgeriaontheoccasionofeidaladha