Will coastal reservoirs dominate future Australian water supplies?

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Shu-Qing Yang


Next to air, fresh water has been always considered as the most important resource, central to economic development as well as to human physiological needs. Currently the total world population is about 7 billion, and, by 2050, it is projected to be 9 billion. By that time an additional 40 Nile Rivers will be needed. Historically, inland dams have successfully solved the water deficit problems in many places, but more and more countries are resorting to emerging technologies like desalination, wastewater recycling and rainwater tanks which are needed to replace inland dams for a number of geomorphological, environmental and societal reasons. These new technologies require a paradigm shift in the water supply industry: global water consumption is only 5~6% of annual runoff—as it is in Australia—so the coming shortage is not of water, but of storage.

A coastal reservoir is a reservoir designed to store floodwaters in a seawater environment. The first generation of this technology has been successfully applied in China, Singapore, Hong Kong and Korea, but the water quality is generally not as good as that from inland reservoirs. The second generation of coastal reservoirs has been developed and its water quality is comparable with the water available from conventional urban water supply reservoirs. The conceptual design of coastal reservoirs for Australia’s capital cities is outlined.


urban water supply; coastal reservoir; inter-basin water diversion; inland dams; water quality

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Kummu M, Guillaume J H A, de Moel H, et al., 2016, The world’s road to water scarcity: shortage and stress in the 20th century and pathways towards sustainability. Scientific Reports, 6: 38495.


Alavian V, Qaddumi H M, Dickson E, et al., 2009, Water and climate change : understanding the risks and making climatesmart investment decisions. World Bank, Washington DC, 21-24.


Finlayson B L and Mcmahon T A, 1988, Australia v the world: a comparative analysis of streamflow characteristics, in Fluvial Geomorphology of Australia, Academic Press, Sydney, 17-40.

Puckridge J T, Sheldon F, Walker K F, et al., 1998, Flow variability and the ecology of large rivers. Marine and Freshwater Research, vol.49(1): 55-72.


Australia Bureau of Meteorology, 2015, Water in Australia 201314, Bureau of Meteorology, Melbourne.


Lahnsteiner J and Lempert G, 2007, Water management in Windhoek, Namibia. Water Science & Technology, vol.55(1-2): 441-448.


Lawson J D and Russell-Head D S, 2016, Augmentation of urban water by Antarctic icebergs. Proceedings of 18th International Conference on Coastal Engineering, November 14-19, 1982, Cape Town, South Africa.


Dam hard: water storage is a historic headache for Australia, n.d., The Conversation, viewed June 30, 2017.


United States Department of the Interior, Bureau of Reclamation, Technical Service Center, 2006, Erosion and sedimentation manual , Sedimentation and River Hydraulics Group, Denver.

Batuca D G and Jordaan J M, 2000, Silting and Desilting of Reservoirs. A.A. Balkema, Rotterdam.

Kondolf G M, Gao Y, Annandale G W, et al., 2014, Sustainable sediment management in reservoirs and regulated rivers: Experiences from five continents. Earth’s Future, vol.2(5): 256-280.


White R, 2001, Evacuation of Sediments from Reservoirs. Thomas Telford, London.

Australian Bureau of Statistics, 2008, Population Projections, Australia, 2006 to 2101. ABS, Canberra.

Liu J, Yang S Q and Jiang C, 2013, Coastal reservoirs strategy for water resource development: A review of future trend. Journal of Water Resource and Protection, vol.5(3A): 336-342.

Bae Y H, Kim K O and Choi B H, 2010, Lake Sihwa tidal power plant project. Ocean Engineering, vol.37(5-6): 454-463.


Chu J, Yan S W, and Li W, 2012, Innovative methods for dike construction: An overview. Geotextiles and Geomembranes, vol.30: 35-42.


Yan S W and Chu J, 2010, Construction of an offshore dike using slurry filled geotextile mats. Geotextiles and Geomembranes, vol.28(5): 422-433.

Yang S Q and Lin P Z, 2011, Coastal reservoir by soft-dam and its possible applications. Recent Patents on Engineering, vol.5(1): 45-56.

Yang S Q and Liu P W, 2010, Strategy of water pollution prevention in Taihu Lake and its effects analysis. Journal of Great Lakes Research, vol.36(1): 150-158.


Yang S Q, Zhang Z, Ng B C, et al., 2001, Coastal Reservoirs, Singapore Patent No. 200504653-7.

Lammens E, van Luijn F, Wessels Y, et al., 2008, Towards ecological goals for the heavily modified lakes in the IJsselmeer area, The Netherlands. Hydrobiologia, vol.599(1): 239-247.


Turner A J, Hausler G, Carrard N R, et al., 2007, Review of water supply-demand options for South East Queensland. Institute for Sustainable Futures, UTS and Cardno (Brisbane), Sydney.

Stamatov V and Stamatov A, 2010, Long-term impact of water desalination plants on the energy and carbon dioxide balance of Victoria, Australia: a case study from Wonthaggi. Water and Environment Journal, vol.24(3): 208-214.


N.D., viewed on June 30, 2017.

http://news.hexun.com/ 2011-06-09/130379841.html

Yang S Q, 2003, Potential Water Resources in Singapore. Journal of Water Supply: Research and Technology - AQUA, vol.52(6): 425-434.

Yang S Q, 2004, Global and China’s Water Crisis and its Solutions in the 21st Century (in Chinese). Tianjin University Press, Tianjin.

Yang S Q, 2016, Why may coastal reservoir dominate future water supply? Proceedings of ANCOLD/NZCOLD Conference, October 18-19, 2016, Adelaide.

Seqwater, 2015, Connecting with customers. Annual Report 2014-2015, Seqwater, Brisbane.

Yang S Q, 2015, A preliminary feasibility study for a backup water supply coastal reservoir in Southeast Queensland, Australia. Journal of Water Supply: Research and Technology-AQUA, vol.64(4): 470-485.


Marchi A, Dandy G and Maier H, 2014, Financial costs, energy consumption and greenhouse gas emissions for major supply water sources and demand management options for metropolitan Adelaide. Goyder Institute for Water Research, Technical Report Series No. 14/12, viewed on May 6, 2017.

http://www.goyderinstitute.org/r111/media/system/attrib/file/102/EnergyCostsReport Marchietal Final web.pdf

DOI: http://dx.doi.org/10.26789/JSUPP.2017.02.003


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