sustainable water conditioning Articles

  • How to achieve triple bottom line sustainability benefits on airport runway projects

    CH2M delivers best-in-class sustainable approaches for airport clients worldwide by constantly seeking opportunities to apply sustainable development and design concepts. From planning through plowing, CH2M is leading the development of the most sustainable runway projects in the U.S. Through our life-cycle approach, airport clients have experienced significant benefits such as ...


    By CH2M Hill Companies, Ltd.

  • Transformational adaptation – when climate change means business as usual is no longer possible

    1. A lesson from the past Deep in the central Sahara, a crumbling mud-brick town sits at the edge of a dry lake bed. This is the medieval town of Germa, in southwestern Libya, one of a string of settlements along the Wadi al-Ajal, a valley defined by the towering dunes of the Ubari Sand Sea to the north, and the black cliffs of the Messak Settafet plateau to the south. Germa is romantic ...


    By Garama 3C Ltd

  • 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

  • Closer Look at the Capacity of SLA Batteries and Solar Energy Systems

    Sealed lead acid (SLA) batteries have a reputation for being durable when used to support portable electronic devices. They require minimal maintenance and offer leak-proof capabilities. But when used with solar energy systems, the units present issues that can hinder the potential and performance of the machines. For example, general purpose SLA batteries should not be deep cycled, as ...


    By Larson Electronics LLC

  • The Water Conditions in Ethiopia, Part Two

    While in Ethiopia in August to learn more about what they do about drinking water, I visited the Debre Damo Monastery. About 1,600 years old, it is situated on a flat-topped outcropping of solid rock. The only way in or out is by climbing a sheer cliff using a 15 meter rope made from woven rawhide. The top supports a community of about 150 monks. Certainly the most extreme location I found people ...


  • Water supply in Jordan under drought conditions

    This paper discusses the Mujib Dam reservoir's storage during the drought years of 2007–2009. It has been concluded that the policy of unplanned water release during the dry year 2007, when little attention was paid to the possibility of a continuation of the drought, contributed to the remarkable lack of surface water storage during 2008, another dry year. For better management and planning, ...


    By IWA Publishing

  • A methodology for quantifying global consumptive water use of coffee for sustainable production under conditions of climate change

    Coffee is the second most traded commodity in the world after oil. A sustainable coffee industry is crucial to maintaining global agriculture, trade, human and environmental well-being, and livelihoods. With increasing water scarcity and a changing climate, understanding and quantifying the risks associated with water, a primary input in coffee production, is vital. This methodological paper ...


    By IWA Publishing

  • Fires at Composting Facilities: Causes and Conditions

    The subject of fires at composting facilities is a bad news/good news situation. The bad news is that fires are more common than we realize. Ask a group of facility operators if they have had to deal with a fire, and the majority will quietly admit they have. The good news is that we don’t realize that fires are fairly common at composting facilities. Most are neither frequent nor destructive ...


    By BioCycle Magazine

  • Water sector performance under scarcity conditions: a case study of Rajasthan, India

    This paper makes an attempt to assess the water sector under scarcity conditions in the State of Rajasthan. It adopts the criteria of physical, economic, financial and equity performance across sub-sectors. The assessment brought out clearly that no indicator has shown satisfactory performance in any of the sub-sectors. Though the urban drinking water sector is relatively better in performance, a ...


    By IWA Publishing

  • Industry, Fresh Water and Sustainable Development

    Synopsis Industry, Fresh Water, and Sustainable Development is published jointly by the World Business Council for Sustainable Development and the United Nations Environment Programme (UNEP). The growing demands for water for human consumption, agriculture and industry means that fresh water must not be taken for granted, but be carefully used.  Industry has an important ...

  • The impact of privatisation on the sustainability of water resources

    More than two and a half millennia ago, the Greek philosopher Thales of Miletus said  “best of everything is water” (Biswas, 2005; p.229). Indeed, water still remains the source of life although the world has changed dramatically. Water is the most important natural resource on our planet Earth. It is the basis of life that all organisms depend on for survival. ...


    By IWA Publishing

  • Calibrating an optimal condition model for solar water disinfection in peri-urban household water treatment in Kampala, Uganda

    In low income settlements where the quality of drinking water is highly contaminated due to poor hygienic practices at community and household levels, there is need for appropriate, simple, affordable and environmentally sustainable household water treatment technology. Solar water disinfection (SODIS) that utilizes both the thermal and ultra-violet effect of solar radiation to disinfect water ...


    By IWA Publishing

  • Innovative approach to unforeseen site conditions – case study

    The Crater Resources Quarry 3 Remediation site was a former limestone quarry that was later used as a disposal site for Waste Ammonia Liquor (WAL) generated by the coke making facility at a steel mill. The WAL contained water, ammonia, and small amounts of various hydrocarbons formed during the coking process. Coking operations shut down by the mid 1980's and discharge into the quarry ceased. The ...

  • Incorporating Condition Assessment into a Comprehensive Asset Management Program

    ABSTRACTIn order to improve asset investment decision-making and achieve sustainable improvements in business performance, utilities must better understand asset condition, asset performance, remaining life and risks. Worldwide, annual expenditure on the maintenance and rehabilitation of water/wastewater reticulation pipes is estimated to be over $33 billion per year, and this is expected to rise ...

  • The sustainability challenge: Meeting the needs of the water-energy nexus

    In 2009 Davos World Economic Forum reported that the world is quickly heading towards “water bankruptcy.” As global population soars, food, energy and freshwater are becoming increasingly scarce. Water, whether for potable or industrial use, is limited, and some supplies are not useable. The need for water in the developed world is high. Two-thirds of all the water consumed is used ...


    By IWA Publishing

  • Sustainable water resource management: the science behind the scene

    Working in the field of research is—in very many respects—challenging and intriguing. In fact, we as researchers are eager to challenge the unknown although we never can reach the ultimate truth. The most we can hope to accomplish is to draw, on the basis of new evidence and understanding, a model of the world that brings us closer to reality than any previous model. Progress along this road is ...


    By Springer

  • Physical investigation into the significance of ground conditions on dynamic leakage behaviour

    Effective leakage models are crucial for leakage assessment and control strategies to improve the sustainability of vital water distribution, and other pipeline, infrastructure. This paper evaluates the interdependence of leak hydraulics, structural dynamics and soil hydraulics, particularly considering the significance of the soil conditions external to longitudinal slits in viscoelastic ...


    By IWA Publishing

  • Groundwater management for adaptation under changing climate conditions in Indian Punjab

    India is the largest groundwater user in the world, with an estimated usage of around 230 km3 per year. Agricultural demand for irrigation is already the single largest draw on India's water, yet estimates by the Ministry of Water Resources indicate that by the year 2050 irrigation needs will rise by 56%. From the climate change viewpoint, India's groundwater hotspots are ...


    By IWA Publishing

  • Assessment of vulnerability of river basins in Ghana to water stress conditions under climate change

    The Falkenmark indicator was used to assess vulnerability of the White Volta (106,000 km2) and Pra (20,023 km2) river basins in Ghana to water stress under climate change for the periods 2006–2035 (representing the 2020s) and 2036–2065 (2050s). The indicator is a commonly used measure of water stress and defines thresholds of 1,700, 1,000 and 500 m3/capita/annum ...


    By IWA Publishing

  • Identification of Land-Cover Changes Through Image Processing and Associated Impacts on Water Reservoir Conditions

    A temporal assessment of land-cover changes of the province Beykoz in Istanbul has been documented in this article. The study focuses on the acquisition and analysis of LANDSAT 5 TM images that reflect the drastic land-cover changes between the years 1984 and 2001 utilizing aerial photographs, orthophoto maps, standard topographic maps, and ground truth measurements. The status of the province, ...


    By Springer

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