Assessment of the Pollution Load by Raw Waste Waters from Mechraa BelKsiri (Morocco)

Authors

  • HRAIRA Thami

    Laboratory of Natural Resources and Sustainable Development, Faculty of Sciences, University Ibn Tofail, P.B. 133, Kenitra 14000, Morocco
  • Khalid FARIRI

    Laboratory of Natural Resources and Sustainable Development, Faculty of Sciences, University Ibn Tofail, P.B. 133, Kenitra 14000, Morocco
  • Manal MAAROUFI

    Laboratory of Natural Resources and Sustainable Development, Faculty of Sciences, University Ibn Tofail, P.B. 133, Kenitra 14000, Morocco
  • Ilyass LAZAAR

    Laboratory of Natural Resources and Sustainable Development, Faculty of Sciences, University Ibn Tofail, P.B. 133, Kenitra 14000, Morocco
  • Dounia BASSIR

    ONEP, National Water and Electricity Office, Avenue Mohammed Belhassan El Ouazzani, BP. Rabat-Chellah, Rabat 10002, Morocco
  • Jalal ETTAKI

    Laboratory of Natural Resources and Sustainable Development, Faculty of Sciences, University Ibn Tofail, P.B. 133, Kenitra 14000, Morocco
  • Kamal HAMMOUALI

    Laboratory of Natural Resources and Sustainable Development, Faculty of Sciences, University Ibn Tofail, P.B. 133, Kenitra 14000, Morocco
  • Hamid SLIMANE

    Laboratory of Natural Resources and Sustainable Development, Faculty of Sciences, University Ibn Tofail, P.B. 133, Kenitra 14000, Morocco
  • Fatiha AALAMA

    Laboratory of Natural Resources and Sustainable Development, Faculty of Sciences, University Ibn Tofail, P.B. 133, Kenitra 14000, Morocco
  • Salah AIT-SI

     Laboratory of Natural Resources and Sustainable Development, Faculty of Sciences, University Ibn Tofail, P.B. 133, Kenitra 14000, Morocco
  • Soufiane SABER

    Laboratory of Natural Resources and Sustainable Development, Faculty of Sciences, University Ibn Tofail, P.B. 133, Kenitra 14000, Morocco
  • Elismaili IFAKKOU

    Laboratory of Natural Resources and Sustainable Development, Faculty of Sciences, University Ibn Tofail, P.B. 133, Kenitra 14000, Morocco
  • Driss BELGHYTI

    Laboratory of Natural Resources and Sustainable Development, Faculty of Sciences, University Ibn Tofail, P.B. 133, Kenitra 14000, Morocco

DOI:

https://doi.org/10.30564/jees.v7i7.8422
Received: 15 January 2025 | Revised: 28 February 2025 | Accepted: 5 March 2025 | Published Online: 30 June 2025

Abstract

Population growth and the industrial production modernization have generated considerable water needs. This consumption has led to a disproportionate discharge of untreated wastewater, directly into receiving environments (Oceans, Rivers, Lakes, Surfaces waters, etc.) and leads to thus promote the spread of waters-borne diseases. The main objective of our present work is the description of the pollutant load of wastewater from the city of Mechraa Belksiri (Kénitra - Morocco), to classify them and identify their composition and their intensity to seek an adequate treatment allowing their subsequent reuse and reducing their dangerousness on their receiving environment Oued Sebou. The analysis of temperature, pH, redox potential, electrical conductivity, dissolved oxygen and salinity are recorded in the field using a portable multiparametric analyzer. The wastewater samples intended for analysis in the laboratory were preserved following the general conservation protocol and handling of samples according to ISO 5667/3. Total Suspended Solids (TSS) are measured by filtration. The analysis of the BOD5 is determined using a BODmeter and the COD, according to DIN 38409-H52. Wastewater from Belksiri town has a pH of 7.2 and an average temperature of 20.5°C and an electrical conductivity of 3145 µs/cm. The average concentration of oxygen is very weak at 0.35 mg/L. Wastewater is loaded with organic matter estimated by Suspended Solid matter (average 446 mg/L), BOD5 (280 mg/L) and COD (557 mg/L). The overall pollutant load of wastewater presents satisfactory biodegradability and is well prepared for suitable biological treatment with activated sludge plant.

Keywords:

Wastewater; Analysis; Pollution; BOD; COD; Belksiri; Morocco

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HRAIRA Thami, FARIRI, K., MAAROUFI, M., Ilyass LAZAAR, Dounia BASSIR, Jalal ETTAKI, Kamal HAMMOUALI, Hamid SLIMANE, Fatiha AALAMA, Salah AIT-SI, Soufiane SABER, Elismaili IFAKKOU, & Driss BELGHYTI. (2025). Assessment of the Pollution Load by Raw Waste Waters from Mechraa BelKsiri (Morocco). Journal of Environmental & Earth Sciences, 7(7), 130–143. https://doi.org/10.30564/jees.v7i7.8422

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Vol. 7 , Iss. 7 (July 2025): In Progress

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Copyright © 2025 HRAIRA Thami, Khalid FARIRI, Manal MAAROUFI, Ilyass LAZAAR, Dounia BASSIR, Jalal ETTAKI, Kamal HAMMOUALI, Hamid SLIMANE, Fatiha AALAMA, Salah AIT-SI, Soufiane SABER, Elismaili IFAKKOU, Driss BELGHYTI

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