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  2. Safe household water storage - Wikipedia

    en.wikipedia.org/wiki/Safe_household_water_storage

    Safe household water storage is a critical component of a Household Water Treatment and Safe Storage (HWTS) system being promoted by the World Health Organization (WHO) worldwide in areas that do not have piped drinking water. In these areas, it is not uncommon for drinking water to be stored in a pot, jar, crock or other container in the home.

  3. Tree box filter - Wikipedia

    en.wikipedia.org/wiki/Tree_box_filter

    It is recommended that there be 2 cubic feet (0.057 m 3) of soil for every 1 cubic foot (0.028 m 3) of tree canopy. [6] Therefore, a five by six foot tree box must contain at least two feet of soil media in order to sustain a tree with a canopy of thirty square feet. Underneath the layer of soil lies the underdrain.

  4. Lime softening - Wikipedia

    en.wikipedia.org/wiki/Lime_softening

    Lime softening (also known as lime buttering, lime-soda treatment, or Clark's process) [1] is a type of water treatment used for water softening, which uses the addition of limewater (calcium hydroxide) to remove hardness (deposits of calcium and magnesium salts) by precipitation.

  5. Lime sulfur - Wikipedia

    en.wikipedia.org/wiki/Lime_sulfur

    The New York State Agricultural Experiment Station recipe for the concentrate suggests starting with 80 lb. of sulfur, 36 lb. of quicklime, and 50 gal. of water, equivalent to 19.172 kg of sulfur and 8.627 kg of calcium oxide per 100 litres of water. About 2.2:1 is the ratio (by weight) for compounding sulfur and quicklime; this makes the ...

  6. Calcium Lime Rust - Wikipedia

    en.wikipedia.org/wiki/Calcium_Lime_Rust

    Calcium deposits, primarily composed of calcium carbonate (CaCO 3), react with weak acids to form calcium salts that are soluble in water. The general reaction can be represented as follows: CaCO 3 + 2H + → Ca + 2 + CO 2 + H 2 O. Here, H + represents the hydrogen ions provided by the acid

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    Free premium casino-style slots and classic video poker by the creators of authentic PC & Mac casino slots from IGT, WMS Gaming, and Bally!

  8. Cucumbers recalled across U.S. and Canada over salmonella risk

    www.aol.com/cucumbers-recalled-across-u-canada...

    Salmonella bacteria cause about 1.3 million infections, 26,500 hospitalizations and 420 deaths in the U.S. every year, with food being the source for most of the illnesses, according to the ...

  9. Phosphogypsum - Wikipedia

    en.wikipedia.org/wiki/Phosphogypsum

    On the other hand, it includes several valuable components—calcium sulphates and elements such as silicon, iron, titanium, magnesium, aluminum, and manganese. [1] However, the long-term storage of phosphogypsum is controversial. [2] About five tons of phosphogypsum are generated per ton of phosphoric acid production.