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  2. Tank leak detection - Wikipedia

    en.wikipedia.org/wiki/Tank_leak_detection

    Tank leak detection is implemented to alert the operator to a suspected release from any part of a storage tank system, what enables to prevent from soil contamination and loss of product. In many countries regulated UST are required to have an approved leak detection method so that leaks are discovered quickly and the release is stopped in time.

  3. Fukushima nuclear accident cleanup - Wikipedia

    en.wikipedia.org/wiki/Fukushima_nuclear_accident...

    Contaminated water leakage from a flange type tank was found in the H4 area. [76] The incident was evaluated by the NRA as a provisional rating Level 3 on the eight-level INES. [77] In response to this incident, the NRA recommended that TEPCO should replace the flange type tank, which was prone to leak water, with a welded type tank. [78] On 28 ...

  4. Hydrostatic test - Wikipedia

    en.wikipedia.org/wiki/Hydrostatic_test

    A hydrostatic test is a way in which pressure vessels such as pipelines, plumbing, gas cylinders, boilers and fuel tanks can be tested for strength and leaks. The test involves filling the vessel or pipe system with a liquid, usually water, which may be dyed to aid in visual leak detection , and pressurization of the vessel to the specified ...

  5. Radiation effects from the Fukushima Daiichi nuclear disaster

    en.wikipedia.org/wiki/Radiation_effects_from_the...

    Undetected leaks into the ocean from the reactors, could not be ruled out, because their basements remain flooded with cooling water, and the 2,400-foot-long steel and concrete wall between the site's reactors and the ocean, that should reach 100 feet underground, was still under construction, and would not be finished before mid-2014.

  6. Concrete degradation - Wikipedia

    en.wikipedia.org/wiki/Concrete_degradation

    When atmospheric carbon dioxide (CO 2), or carbonate ions (HCO − 3, CO 2− 3 dissolved in water) diffuse into concrete from its external surface, they react with calcium hydroxide (portlandite, Ca(OH) 2) and the pH of the concrete pore water progressively decreases from 13.5 – 12.5 to 8.5 (pH of water in equilibrium with calcite).

  7. Monticello Nuclear Generating Plant - Wikipedia

    en.wikipedia.org/wiki/Monticello_Nuclear...

    Another leak of hundreds of gallons of tritium-laced water, originating from a short-term fix for the original leak, was discovered on March 22. [23] Xcel announced that the nuclear plant would be powered down on March 24, 2023, to cut out a leaking 50-year-old pipe to repair the ongoing leak.

  8. Water tank - Wikipedia

    en.wikipedia.org/wiki/Water_tank

    An elevated water tank, also known as a water tower, will create a pressure at the ground-level outlet of 1 kPa per 10.2 centimetres (4.0 in) or 1 psi per 2.31 feet (0.70 m) of elevation. Thus a tank elevated to 20 metres creates about 200 kPa and a tank elevated to 70 feet creates about 30 psi of discharge pressure, sufficient for most ...

  9. Waterstop - Wikipedia

    en.wikipedia.org/wiki/Waterstop

    Initial leaking is possible until the waterstop expands to seal the joint. The American Concrete Institute recommends against the use of hydrophilic waterstops for hazardous fluids such as fuels, acids, and process chemicals, as the products may not swell as intended in fluids other than water.

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