Next Article in Journal
A Psychological Approach to ‘Public Perception’ of Land-Use Planning: A Case Study of Jiangsu Province, China
Previous Article in Journal
Temporal Evolution and Influencing Factors of Energy Consumption and Related Carbon Emissions from the Perspective of Industrialization and Urbanization in Shanghai, China
Open AccessArticle

Potential Recovery Assessment of the Embodied Resources in Qatar’s Wastewater

1
Research Operation & Governance, Sidra Medical and Research Center, 26999 Doha, Qatar
2
Civil, Environmental and Architectural Engineering, University of Padua, 35131 Padua, Italy
*
Authors to whom correspondence should be addressed.
Sustainability 2018, 10(9), 3055; https://doi.org/10.3390/su10093055
Received: 15 July 2018 / Revised: 23 August 2018 / Accepted: 25 August 2018 / Published: 28 August 2018
(This article belongs to the Section Environmental Sustainability and Applications)
Due to the ever-growing demand for natural resources, wastewater is being considered an alternative source of water and potentially other resources. Using Qatar as an example, this study assesses the resources embodied in wastewater and paves the way to combine wastewater treatment with advanced resource recovery (water, energy, nitrogen, phosphorous, added value products) which can turn wastewater management from a major cost into a source of profit. In this sense, wastewater is no longer seen as a problem in need of a solution, rather it is part of the solution to challenges that societies are facing today. Based on estimated quantities of generated urban wastewater and its average composition, mass flow analysis is implemented to explore the maximum availability of major wastewater constituents (solids, organic compounds, nutrients, chloride, alkalinity, sulfide). An assessment analysis reveals that, in Qatar, more than 290,000 metric tons total solids, 77,000 metric tons organic compounds, 6000 metric tons nitrogen, 81,000 metric tons chloride, 2800 metric tons sulfide, and 880 metric tons of phosphorus are embedded in about 176 million m3 of urban wastewater annually. One promising valorization strategy is the implementation of anaerobic digestion with biogas production, and the organic materials contained in Qatar’s wastewater corresponds to more than 27 million m3 of methane (equivalent to an energy content of more than 270 GWh) per year. The results further suggest that the recovery of nitrogen, phosphorus, and sulfide should be given priority. View Full-Text
Keywords: wastewater; resource recovery; mass flow analysis; nutrients; organic compounds wastewater; resource recovery; mass flow analysis; nutrients; organic compounds
Show Figures

Figure 1

MDPI and ACS Style

Alsheyab, M.A.T.; Kusch-Brandt, S. Potential Recovery Assessment of the Embodied Resources in Qatar’s Wastewater. Sustainability 2018, 10, 3055.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop