Water Supply Systems: New Technologies


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A series of publications issued by the Water Science and Technology Board of the National Research Council NRC, ; ; reported a general consensus that technology exists for rendering almost any wastewater safe for drinking by current standards, but that the uncertainties regarding trace organics and emerging contaminants impose risks, suggesting that potable reuse should be an option of last resort US EPA, The planning and management approaches of 65 international nonpotable water reuse projects were documented in a survey conducted by the Water Environment Research Foundation WERF Mantovani et al.

The survey, which covered agricultural, urban, and industrial water reuse projects in both industrialized and developing countries in arid and semi-arid areas around the globe, showed that operational performance, sound institutional arrangements, conservative cost and sales estimates, and good project communication are the basis for success in reclamation and reuse projects.

Water recycling and reclamation | Climate Technology Centre & Network

Likewise, the survey also showed that institutional obstacles, inadequate valuation of economic benefits, and lack of public information can delay water reclamation and reuse projects or cause them to fail US EPA, Skip to main content. Connecting countries to climate technology solutions. User menu About us Contact Newsletter Login. You are here Home Water recycling and reclamation. Water recycling and reclamation Objective:. Technology group:. Use of alternative water sources.

Water recycling and reclamation.

Description The terms reclamation and reuse are often used in various contexts to mean different things. These general approaches include: Substituting reclaimed water for applications that do not require potable water Augmenting existing water sources and providing an additional source of water supply to assist in meeting both present and future water needs Protecting aquatic ecosystems by decreasing the diversion of freshwater, as well as reducing the quantity of nutrients and other toxic contaminants entering waterways Postponing and reducing the need for water control structures Complying with environmental regulations by better managing water consumption and wastewater discharges Typical wastewater treatment schemes incorporate multiple levels of physical, biological, and chemical treatment in order to ensure that water discharged to the environment does not pose a significant risk of adverse environmental or health impacts.

Advantages of the technology Among a number of other predictions made by the Intergovernmental Panel on Climate Change, it is anticipated that climate change will lead to increased periods of drought, reduced freshwater stores, and sea level rise IPCC, Financial requirements and costs In general, the most economically viable applications for water reuse are those that replace potable water with reclaimed water for use in irrigation, environmental restoration, cleaning, toilet flushing, and industrial uses US EPA, Institutional and organisational requirements A number of key capacity building elements that are required to ensure the quality of decision-making and managerial performance in the planning and implementation of water reclamation and reuse programs have been previously identified by UNEP UNEP, Policy and regulatory framework: It will be necessary for policies and legal frameworks that facilitate safe and appropriate reclamation and reuse programs to either be created or aligned in order to ensure the protection of human health and the environment.

Institutions: National, regional, and local institutions will likely need to be supported in their efforts to identify ways in which they can improve effectiveness in regulating and managing water reclamation and reuse programs.


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  • Water under threat: new technology could be the answer.

Financing: Financing opportunities and services for water reclamation and reuse initiatives will need to be expanded in order to facilitate such initiatives. It is also likely that the capability of utilities and potential users to understand and access these services will need to be improved. Participation: Since public perception often determines the success or failure of water reclamation and reuse initiatives Po et al.

Barriers to implementation There are a number of socio-political barriers that often limit successful implementation of water reclamation and reuse programs. Opportunities for implementation The planning and management approaches of 65 international nonpotable water reuse projects were documented in a survey conducted by the Water Environment Research Foundation WERF Mantovani et al.

References Anderson, J. The environmental benefits of water recycling and reuse.

Water Science and Technology: Water Supply. Asano, T. New York. Jimenez, B. Geneva, Switzerland. Kurian J. Water Lines.


  • Technology Is One Piece of the Water-Saving Puzzle.
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Mantovani, P. Washington, DC: Natl. Okun, D. Public Health. Pahl-Wostl, C. Transition to adaptive water management: The NeWater project. NeWater Working Paper 1, New approaches to adaptive water management under uncertainty. Po, M,. Kaercher, J.

New Technologies

Commercial irrigation systems have also implemented the smart irrigation systems like the home sprinklers, just on a larger scale. These large scale smart systems preserve water, locate leaks or other potential problems and pinpoint exactly how much water is needed. Utilizing water to make electricity is not a new technology as dams in large rivers have been doing this for years. But recently, car manufacturers have started to use technology to make hydro-powered vehicles that use water to power the engine.

This alternative is better for the environment, more cost effective for consumers and in the future we will be seeing more hydro cars on the road and in the marketplace. To avoid water waste, appliance companies are using new technology to modernize appliances and make them more efficient by utilizing less water. There are toilets and shower heads that use less water within the home; in commercial buildings they have pipelines and metered water regulations. In , the Gates Foundation came up with a solution for developing countries by creating self-sufficient solar powered toilets that do not rely on running water to function.

These toilets recycle the grey waste water used and with the solid waste, the technology is able to turn it into fertilizer. Knowing where the water is going and what it is being used for can help businesses and consumers regulate their water use.


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  5. There are new smart technologies that specialize in compiling the water usage data from pipelines, meters, and water quantities. Some companies like Precision Hawk have been working farms to start using drones to monitor their fields and their water supply. Currently, most wastewater recycling facilities are centrally located in towns and cities.

    It's also found a small but relatively lucrative market among "preppers" -- mostly Americans worried about the apocalypse. Startup entrepreneurs point out that there are still gaps in the ecosystem, notably the availability of finance to take innovations from pilot to full commercial scale. But that may change as the challenges of water scarcity in Singapore and around the world become more acute.

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    Water under threat: new technology is the answer

    The "existential" challenge in places like Singapore, Ferguson said, changes that calculation. Sign up to our newsletters to get our best stories delivered straight to your inbox. Stay ahead with our exclusives on Asia ; the most dynamic market in the world. Stay ahead with our exclusives on Asia. Get trusted insights from experts within Asia itself. Arrow Artboard Created with Sketch. Artboard Created with Sketch. Companies Water-stressed Singapore bets on new technology to secure supply A host of start-ups discover alternative ways to purify water.

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