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  2. Desalination - Wikipedia

    en.wikipedia.org/wiki/Desalination

    The facility would produce 190,000 cubic metres of drinking water per day, enough to supply about 100,000 homes. [169] As of June 2012, the cost for the desalinated water had risen to $2,329 per acre-foot. [170] Each $1,000 per acre-foot works out to $3.06 for 1,000 gallons, or $0.81 per cubic meter. [171]

  3. Environmental impact of concrete - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    Concrete is used to create hard surfaces which contribute to surface runoff that may cause soil erosion, water pollution and flooding. Conversely, concrete is one of the most powerful tools for proper flood control, by means of damming, diversion, and deflection of flood waters, mud flows, and the like.

  4. Topsoil - Wikipedia

    en.wikipedia.org/wiki/Topsoil

    Topsoil is composed of mineral particles and organic matter and usually extends to a depth of 5-10 inches (13–25 cm). Together these make a substrate capable of holding water and air which encourages biological activity. There are generally a high concentration of roots in topsoil since this is where plants obtain most of their vital nutrients.

  5. Structural Soil - Wikipedia

    en.wikipedia.org/wiki/Structural_Soil

    Structural Soil is a medium that can be compacted to pavement design and installation requirements while permitting root growth. It is a mixture of gap-graded gravels (mostly made of crushed stone) and soil (mineral content and organic content). It provides an integrated, root penetrable, high strength pavement system that shifts design away ...

  6. Physical properties of soil - Wikipedia

    en.wikipedia.org/wiki/Physical_properties_of_soil

    The specific heat of pure water is ~ 1 calorie per gram, the specific heat of dry soil is ~ 0.2 calories per gram, hence, the specific heat of wet soil is ~ 0.2 to 1 calories per gram (0.8 to 4.2 kJ per kilogram). [90] Also, a tremendous energy (~584 cal/g or 2442 kJ/kg at 25 °C) is required to evaporate water (known as the heat of ...

  7. Levelized cost of water - Wikipedia

    en.wikipedia.org/wiki/Levelized_cost_of_water

    The levelized cost of water ( LCOW or LCW) is the "cost per unit volume of product water produced by a water treatment process or service". It is a measure of efficiency, with lower values representing more efficient methods. LCW can refer to drinking water for human consumption or water for irrigation. [1] The LCW varies with the method used ...

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