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International Journal of Innovation and Applied Studies
ISSN: 2028-9324     CODEN: IJIABO     OCLC Number: 828807274     ZDB-ID: 2703985-7
 
 
Wednesday 18 September 2019

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STEP purifying performance of Dar El Gueddari (Natural lagoons)


[ Performance épuratoire de STEP de Dar El Gueddari (Lagunage naturel) ]

Volume 16, Issue 4, June 2016, Pages 704–717

 STEP purifying performance of Dar El Gueddari (Natural lagoons)

Mohamed ALLAOUI1, ELH. Mohati2, M. Saadallah3, and Ahmed El Harfi4

1 Department of Chemistry, Laboratory of Agro-resources, Polymers and Process Engineering (LAPPE), Team of Organic Chemistry and Polymers (TOCP), University Ibn Tofail, Faculty of Science, Kenitra, Morocco
2 Quality Control Division of Waters, Purification Service Water Pollution, Branch Water, ONEE, Rabat, Morocco
3 Quality Control Division of Waters, Purification Service Water Pollution, Branch Water, ONEE, Rabat, Morocco
4 Laboratory of Polymers, Radiation and Environment (LPRE) - Team of Organic and Macromolecular Chemistry (TOMC), Department of Chemistry, University Ibn Tofail, Faculty of Sciences, Kenitra, Morocco

Original language: French

Received 12 February 2016

Copyright © 2016 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract


Most domestic wastewater in urban and rural centers is dismissed without prior treatment or in the sewage system or directly into the aquatic environment. This often causes an alteration and a biological imbalance. In this study we will work on the natural lagoon treatment plant wastewater city of Dar ElGueddari with a nominal capacity of 700 m3/ day. The present work aims to: Analyze the results of monitoring campaigns carried out at the entrance and exit of STEP in 2012-2013 for pollution parameters BOD5, COD and TSS. Analyze the purification performance of the station and offer recommendations to improve their treatment efficiency according to national standards or European. Furthermore, we will also perform a qualitative analysis through: The evaluation of the quality of the effluent based on domestic Moroccan discharge standards and compliance in terms of BOD5, COD and TSS. The confirmation of the characteristic of waste water by comparing the DCO reports/BOD5 and TSS/BOD5 with the usual ratios of urban wastewater. Comparison of the abatement of pollution parameters compared to those set by the European directive.

Author Keywords: Wastewater treatment plant, dejection, Nominal Flow, TSS, BOD5, COD.


Abstract: (french)


La plupart des eaux usées domestiques des centres urbains et ruraux sont rejetés sans traitement préalable, soit dans le réseau d’assainissement, soit directement dans les milieux aquatiques. Ce qui provoque souvent une altération et un déséquilibre biologique. Dans la présente étude nous allons travailler sur le lagunage naturel de la station d’épuration des eaux usées de ville de Dar ElGueddari, d’une capacité nominale de 700 m3/j. Le présent travail a pour objectifs de : Analyser les résultats des compagnes de suivi réalisés à l’entrée et à la sortie de la STEP en 2012-2013 pour les paramètres de pollution MES, DBO5 et DCO. Analyser les performances épuratoires de la station et proposer des recommandations afin d’améliorer leur rendement épuratoire selon les normes nationales voire Européennes. Par ailleurs, nous allons effectuer aussi une analyse qualitative à travers : L’évaluation de la qualité de l’effluent en se basant sur les normes de rejet marocaines domestiques et leur conformité en termes de MES, DBO5 et DCO. La confirmation de la caractéristique des eaux usées, en comparant les rapports DCO/DBO5 et MES/DBO5 avec les ratios habituels des eaux usées urbaines. La comparaison de l’abattement des paramètres de pollution par rapport à ceux fixés par la directive Européenne.

Author Keywords: Station d’épuration, Abattement, Débit nominale, MES, DBO5, DCO.


How to Cite this Article


Mohamed ALLAOUI, ELH. Mohati, M. Saadallah, and Ahmed El Harfi, “STEP purifying performance of Dar El Gueddari (Natural lagoons),” International Journal of Innovation and Applied Studies, vol. 16, no. 4, pp. 704–717, June 2016.