Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Titre : A Field Study on Treating Wastewater Using Bioretention and Permeable Pavement Systems

Auteur : Rubab Ammad

Université de soutenance : United Arab Emirates University

Grade : Master of Science (MS) 2017

Résumé
The wastewater treatment study was conducted as a part of the efforts initiated by the UAE government for combating water shortage in the country by adopting the strategy of water conservation and reuse. This study investigated the performance of two water sensitive urban design systems, the Permeable Pavement and the Bioretention System, in improving the wastewater quality from fish tanks. Conventionally, these systems are used for storm water treatment but as UAE is situated in an arid climatic zone and experiences minimal rainfall, the two systems in undertaken study have been used in treatment of wastewater to gage their performance abilities. Field scale Bioretention and Permeable Pavement units were constructed at the Falaj Hazza campus of the UAE University. Wastewater from fish tanks was supplied to these units from the existing fish tanks in the Aquaculture Research Center, located in close proximity to these units. During the study, a number of physical and chemical water quality parameters were monitored, including pH, conductivity, salinity, total nitrogen, total phosphorus, total organic carbon, chemical oxygen demand, and heavy metals (lead and chromium). The outcomes of the study have delineated the performance capabilities of both systems in treating the wastewater from the fish tanks and have also provided an insight into the systems’ mechanics which could be addressed to enhance these capabilities of both systems. Bioretention System was able to remove phosphate, chemical oxygen demand, turbidity, and oxidation reduction potential from the influent water, whereas Permeable Pavement System was very effective in removing lead and reducing salinity of fish tank wastewater.

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