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  2. Salt water chlorination - Wikipedia

    en.wikipedia.org/wiki/Salt_water_chlorination

    Salt water chlorination is a process that uses dissolved salt (1000–4000 ppm or 1–4 g/L) for the chlorination of swimming pools and hot tubs.The chlorine generator (also known as salt cell, salt generator, salt chlorinator, or SWG) uses electrolysis in the presence of dissolved salt to produce chlorine gas or its dissolved forms, hypochlorous acid and sodium hypochlorite, which are already ...

  3. Qanat - Wikipedia

    en.wikipedia.org/wiki/Qanat

    The ground water flow was known to depend on grain size of sediments, and, therefore, the tunnels in qanats are filled in with coarser material than the surrounding host geological formations. The qanats are constructed mainly along the valleys where Quaternary sediments are deposited.

  4. Gadara Aqueduct - Wikipedia

    en.wikipedia.org/wiki/Gadara_Aqueduct

    East of Adraha was a 35-metre (115 ft) bridge. The remains of the bridge now can be found on the ground of the new Al Saad Dam located at the eastern suburbs of Dera'a. After a junction point with a side channel from the Muzayrib lake, the underground aqueduct begins. Three water systems have been found near Gadara (Umm Qais).

  5. Salt evaporation pond - Wikipedia

    en.wikipedia.org/wiki/Salt_evaporation_pond

    Evaporation systems are also often evaluated by the water evaporation rate per unit area. When the energy is largely provided by sunlight, these are often evaluated with a solar efficiency, (), which is a thermal efficiency that compares incoming light energy to the enthalpy of vaporization. This is the same as the gained output ratio (GOR) in ...

  6. Salt pan (geology) - Wikipedia

    en.wikipedia.org/wiki/Salt_pan_(geology)

    Natural salt pans or salt flats are flat expanses of ground covered with salt and other minerals, usually shining white under the sun. They are found in deserts and are natural formations (unlike salt evaporation ponds, which are artificial). A salt pan forms by evaporation of a water pool, such as a lake or pond.

  7. 3,400-year-old site — where the Pharaoh relaxed — unearthed ...

    www.aol.com/3-400-old-where-pharaoh-124732236.html

    They believe the Pharaoh used the building to rest and relax in between military campaigns. Ruins of the 3,400-year-old rest house found in Tel Habwa. Uncover more archaeological finds