The Pollution Load of Fish Wastewater of El Marsa Laayoune Industrial Area

Elaouani, H.; Salama, Lina; Taouallah, A.; Mailainine, S.; Jaafari, K.; Benkhouja, K.

doi:10.17654/hm024010131

Cited by 1 publication

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“…The high temperature can be explained by the use of heat by these factories during various stages of flour production, such as cooking, drying, pressing, etc. (Elaouani et al, 2019) found values ranging from 21 to 31 °C in industrial liquid discharges in Agadir.…”

Section: Principal Component Analysis Of Physicochemical Parameters A...mentioning

confidence: 92%

Physico-Chemical And Microbiological Pollution Of Industrial Wastewater From Levrier Bay In Mauritania

Abdel Maleck,

Cheikh Zamel,

Ahmed Elmamy

et al. 2024

J. Ecol. Eng.

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The objective of this study was to conduct a preliminary assessment of the potential impacts of effluents from freezing plants and fishmeal and oil factories in the Levrier Bay on the aquatic environment through physicochemical and microbiological characterization. Effluent samples from various factories were collected and characterized by pH, dissolved oxygen (DO), electrical conductivity (EC), total dissolved solids (TDS), salinity, temperature (T), phosphate (PO 4 ), nitrate (NO 3 ), nitrite (NO 2 ), biochemical oxygen demand (BOD 5 ), total coliforms (TC), Escherichia coli (EC), and fecal streptococci (FS). The concentration ranges of the effluents were as follows: pH (6.75 to 8.57), DO (1.56 to 4.66 mg/l), EC (26620 to 78520 µS/cm), TDS (13.15 to 38.70 g/l), salinity (16.26 to 49.68 PSU), T (7.67 to 32.7 °C), PO 4 (0.25 to 80.6 mg/l), NO 3 (1.77 to 74.03 mg/l), NO 2 (0.02 to 1.84 mg/l), and BOD 5 (0.5 to 7150 mg/l). TC (2.3×10 3 to 4.6×10 6 CFU/100 ml), EC (50 to 2×10 6 CFU/100 ml), and FS (3.4×10 3 to 2.3×10 7 CFU/100 ml). The evaluated characteristics of these effluents are likely to contaminate and degrade the receiving water bodies (exceeding international standards). Hence, pretreatment of the effluent discharge is indispensable.

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Section: Principal Component Analysis Of Physicochemical Parameters A...mentioning

confidence: 92%