Date of Award


Document Type


Degree Name

Master of Science (MS)


Architectural Engineering

First Advisor

Dr. Rashed Khalifa Al Shaali

Second Advisor

Kheira A . Tabet Aoul

Third Advisor

Dr. Leicht, Robelt M


Water scarcity is a worldwide problem that called for a wiser and more sustainable resources' management. Grey waste water treatment is considered a widely spread technology that dominates water management in order to substitute the potential deficiencies.

Water use in the last three decades in the UAE has witnessed both a great increase and pressure on groundwater and desalinated water. This consequently has called for continuous, serious and diversified efforts to simultaneously improve the supply and sustain the water use by treatment and recycling. Besides UAE's natural population growth, the demand for water is also expected to increase significantly in UAE following the announcement of the award to Dubai to host the World Expo 2020 as it estimated that the event would help create 277,000 jobs and attract 25 million visitors from outside of the UAE. This therefore warrants the need for sustainable water resources to cater for this anticipated demand. Further, Expo 2020 would have a domino effect on trade, investment, technology, construction, and other related sectors and sub-sectors in Dubai and the UAE. This will also add to the need for additional water resources for construction activities. Without adequate supply of water the projected economic benefits associated with the Expo 2020 cannot be realized.

The main goal of this study was to provide an estimate of the benefits in Dirham's in cost savings through investigating recycling grey water so as to reduce water consumption within in Al Wagan residential neighborhood of Al Ain city in the Emirate of Abu-Dhabi. An extended objective was related to the energy savings which will be a byproduct and is resulted from reducing the amount of the pumped water to the neighborhood and to Sewage Treatment Plant (STP) by the government.

Within this context, the author adopted mixed research methodology. Theoretical background was highlighted for water resources in the UAE, Abu Dhabi Emirates and the Al-Wagan district. Water treatment systems were handled using a qualitative research approach while considered the case study in Al-Wagan District using the quantitative methodology.

The study revealed the escalation of the water supply by the TRANSCO for the residential sector in particular. An amount of 1,200,000 gallon was registered to be provided by TRANSCO for the whole district. Consuming 40.75 % in the residential and 40% as a grey water resulted from ablution, hand wash basins and showers gave a huge potential towards the recycling and reusing the treated resulted grey water.

Using a local water treatment company, a decentralized system with physical treatment technology revealed the savings of more than two million Dirhams on an annual basis that can be devoted for other developmental activities in Al Wagan district. This research gave a considerable weight for other relevant stu