Environmental Impact Assessment of Taza City’s Wastewater: Application through Principal Component Analysis

Autor: Ibrahim Touzani, Mohammed Machkor, Otmane Boudouch, Imane El Machrafi, Rachid Flouchi, Kawtar Fikri-Benbrahim
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Scientifica, Vol 2020 (2020)
Druh dokumentu: article
ISSN: 2090-908X
DOI: 10.1155/2020/9168569
Popis: Taza City is among the Moroccan cities which is in full urban expansion, with a daily wastewater discharge volume estimated at 16534 m3/d in 2020, and expected to reach 20056 m3/d by 2030. These waters, collected in a combined sewerage network, are directly released into the natural environment without any treatment. Indeed, a large part of this water is discharged into Oued Defali, the main tributary of Oued Larbâa. In order to manage and better understand these discharges impact on the streams crossing this city, wastewater sampling campaigns were carried out for one year from May 2018 to April 2019 at domestic (S1) and industrial (S2) sites. The wastewater physicochemical characterization revealed that these discharges are highly loaded with organic matter in terms of chemical oxygen demand (S1 avg = 1231.44 mg/l and S2 avg = 933.03 mg/l), biochemical oxygen demand (S1 avg = 511.87 mg/l and S2 avg = 464.35 mg/l), and suspended matter (S1 avg = 744.11 mg/l and S2 avg = 578.13 mg/l). The use of principal component analysis (PCA) has allowed us to collect as much information as possible from the database of the physicochemical analyses performed for the studied parameters.
Databáze: Directory of Open Access Journals
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