water supply Articles

  • How to make top-down and bottom-up sustainability converge

    Fits and starts are all too common in the sustainability world. One year you have budget for initiatives; the next you don’t. Management hails cost savings on individual projects, but they miss the big picture and fail to link progress across departmental boundaries. Bottom-up progress and top-down directives pass each other like proverbial ships in the night. But it doesn’t have to ...


    By CH2M Hill Companies, Ltd.

  • DESMI Pumps for HVAC in Sharjah, UAE - Case Study

    DESMI has supplied a series of eight NSLH End Suction Centrifugal Pumps for the Umm Al-Qura building located in Sharjah at the Al Mamzar beach. The NSLH pumps will be providing 198 differently sized apartments with cooling. The residential building has 22 floors + 5 floors for car ...


    By DESMI A/S

  • Salinity and miniDOT

    The miniDOT and other optical dissolved oxygen sensors measure oxygen within a special plastic material that has the property of changing its fluorescence in response to the amount of oxygen present. Oxygen arrives within this material by diffusion from the surrounding environment, which is usually water.  The miniDOT determines oxygen concentration in water dissolved oxygen  by ...

  • The benefits of monitoring compressed air

    Compressed air is used in many manufacturing processes for many different reasons, from the actuation and control of pneumatic valves and cylinders to the operation of process machinery and tooling. It can also be used as a transport medium for bulk materials or as a purge gas. For all its uses it is nonetheless expensive. This is why, through detailed monitoring, a business can enjoy the ...


    By Contrec Europe Limited

  • Pharmaceuticals and water supply

    Prescription Drugs have been detected in water supply systems of major cities in the United States including Europe, Canada, Australia and Asia.  In addition, quantities of antibiotics, steroids, antidepressants, and hormones are also present in the water supply (Doro-on, 2011).  These new emerging contaminants are designed with small concentrations that can generate specific health ...


    By IWA Publishing

  • Alternative Water Supply Systems

    Alternative Water Supply Systems covers technical, social, financial and institutional aspects associated with decentralized alternative water supply systems. These include systems for greywater recycling, rainwater harvesting, recovery of water through condensation and sewer mining. A number of case studies from the UK, the USA, Australia and the developing world are presented to discuss ...


    By IWA Publishing

  • Optimising the water supply network

    Untitled Document The city of Crema sits on the Serio River south east of Milan in Northern Italy and has a population of approximately ...


    By Innovyze

  • Augmenting Water Supply Systems

    Direct use of recycled water to augment urban water supply systems entails pumping water into the distribution system or blending with the conventional supply at the water treatment plant. The recycled water needs to be treated to drinking water standards or better, including advanced treatment processes to remove trace organics and chemicals. The City of Windhoek in ...


    By IWA Publishing

  • The peak oil crisis and water supply

    Much is being made about the 'Peak Oil Crisis' in the media today. Gasoline and natural gas prices are high and continue to rise. But what is the 'peak oil crisis' and how does it impact our water supply?Peak Oil is discussed and defined in an excellent book by Kenneth S. Deffeyes entitled “Beyond Oil, The View from Hubbert's Peak”. As Mr. Deffeyes notes:'The supply of oil in the ground is not ...


  • Geodrilling: Managing Water Supply in Italy

    In recent years there has been significant reorganisation in the Italian water sector to conform to the rules set out in the European Union Water Directive concerning the control of water pollution and the consistency of water tariffs. There have been some successes, particularly where companies in the industrial and commercial sectors, who manage their own water supplies, have had some ...


    By Geoquip Water Solutions

  • Water supply planning & environmental studies

    Client: U.S. Fish & Wildlife Service Completion Date: 1998 Services Provided Surface water modeling Groundwater modeling Storage reservoir siting and assessment Facility modifications Water supply alternative evaluations Water quality analysis Hydrology and hydraulics ...


    By Burns & McDonnell

  • Performance indicators for water supply management

    In the present study specific performance indicators are proposed that express the level of service of a water system subjected to varying operating conditions over time. The proposed methodology has been applied to a specific case study (Sinni water supply system in Basilicata – Italy) to demonstrate the real applicability of the proposed performance analysis that could be very useful to ...


    By IWA Publishing

  • Structural conditions in German water supply

    Against the background of price controls for drinking water supply utilities in Germany, the comparability of utilities with regard to their specific structural conditions comes into focus. Relevant structural conditions were identified for the two main technical processes, namely water production (WP) and treatment, storage and distribution (TSD). A defined clustering process for comparable ...


    By IWA Publishing

  • Integrated local water supply plan

    Client: City of Wichita, Kan. Completion Date: June 2001  Services Provided Water supply planning Evaluation of alternatives Cost estimating Economic comparison Environmental studies (NEPA) Program management Hydrogeologic engineering Water quality monitoring ...


    By Burns & McDonnell

  • Homeland Security for Drinking Water Supplies

    As it has done with other jurisdictions, Congress has recently passed legislation aimed at protecting our nation's drinking water resources. Historically, water supply protection has been a high priority, including reservoir protection, continuous monitoring, and secure and redundant facilities to ensure an uninterrupted supply of drinking water. The Clean Water Act (1972), requires pollution ...


    By AECOM

  • Demand management in urban water supply

    Since the 1930s, the drinking water supply of the Rabat-Casablanca coastal area has depended on water transfers from groundwater, from Maamora, and surface water, from the Bou Regreg Basin. Assessments carried out during the 1980s, based on patterns of water use at that time, showed that by 2010, transfers ...


    By IWA Publishing

  • Impact of intermittent water supply on water quality in Lebanon

    Lebanon in general and its capital, Beirut, suffer from water shortage due to the increasing water demand and the lack of proper management despite its abundant water resources. An intermittent water supply strategy was implemented in order to minimise deficiency problems. This, however, can seriously affect water quality due to the potential suction of non-potable water by negative pressures, ...


    By Inderscience Publishers

  • Azerbaijan National Water Supply and Sanitation Project

    The water supply and sewer system in Azerbaijan is characterized by old, damaged and largely dysfunctional infrastructure and is financial constrained and poorly operated. This results in the level and the quality of the water supply and wastewater treatment (WWT) services especially in small towns being significantly degraded. Water shortage and the use of dirty water for drinking have ...


    By Huckbody Environmental

  • Groundwater use and policy in community water supply in Finland

    Selection between ground and surface water in community water supply has been one of the key strategic questions in Finland since the early 1900s. After some cities failed to find reliable groundwater sources, many turned to surface waters. Since the 1950s the use of groundwater and artificial recharged groundwater have continuously increased. Presently their use is promoted by the government and ...


    By Springer

  • Spatial analysis of rural drinking water supply in China

    A spatial autocorrelation analysis method was employed to process the spatial change of rural water supply over the past 19 years in the People's Republic of China. Statistical analyses indicate great achievements in rural water supply construction. Two main indices describing rural drinking water supply status, the Rural Popularization Rate of Tap Water and the Rural Popularization Rate ...


    By IWA Publishing

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