Assessing the Water Energy Nexus and Sustainability Benefits of a Closed Loop Water Treatment System in Qatar
MetadataShow full item record
Qatar has very limited freshwater resources. This paper assesses the sustainability implications of using bore water and treated sewage effluent (TSE) for residential water supply (for non-drinking purposes) in a residential compound in Doha, Qatar. The treated bore water was considered for non-drinking domestic applications in kitchens and bathrooms, while the TSE was considered for use in air conditioning cooling systems. Excess TSE was also considered for irrigation use. Water quality from the aquifer in the Al Waab area of Doha was used to design a pre-treatment and desalination process to produce potable water for a local residential compound consisting of 113 villas. The wastewater from these villas consisted of both grey and black water and was proposed to be treated in a sewage treatment plant to produce TSE to operate the cooling systems in the compound. The reject brine from the desalination process was designed to be discharged to sea through the storm water network and the blowdown water from the cooling systems was considered for use in irrigation in surrounding areas. A lifecycle assessment of this closed loop water recycling system was conducted to assess the potential sustainability benefits of reduced greenhouse gas emissions, embodied energy consumption, and water consumption, together with cost savings and employment generation from these water recycling options.
Showing items related by title, author, creator and subject.
Effect of iron corrosion on the fate of dosed copper to inhibit nitrification in chloraminated water distribution systemZhan, Weixi (2011)Nitrification has been acknowledged as one of the major barriers towards efficient chloramination in water supply distribution systems. Many water utilities employing monochloramine as the final disinfectant have been ...
Fazakerley, Victor William (2005)This study makes a contribution to the Australian urban water supply industry because it highlights some of the critical issues the industry faces in the future. Through the scenarios it illuminates an alternative method ...
Basnayaka, Amila Prasad (2012)With the rapid urbanization happening around the world, the nature of the natural hydrological cycle has been changed and it causes many adverse effects like urban flooding, erosion and degradation of water quality in ...