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  2. Lime softening - Wikipedia

    en.wikipedia.org/wiki/Lime_softening

    Additionally, magnesium can be precipitated as magnesium hydroxide in a double displacement reaction. [3] In the process both the calcium (and to an extent magnesium) in the raw water as well as the calcium added with the lime are precipitated. This is in contrast to ion exchange softening where sodium is exchanged for calcium and magnesium ions.

  3. Pulsed-power water treatment - Wikipedia

    en.wikipedia.org/wiki/Pulsed-power_water_treatment

    Pulsed-power water treatment is the process of using pulsed, electro-magnetic fields into cooling water to control scaling, biological growth, and corrosion. The process does not require the use of chemicals and helps eliminate environmental and health issues associated with the use and life-cycle management of chemicals used to treat water. [ 1 ]

  4. Rotating biological contactor - Wikipedia

    en.wikipedia.org/wiki/Rotating_biological_contactor

    Since the systems are staged, the culture of the later stages can be acclimated to the slowly degraded materials. [8]: Ch 2 The discs consist of plastic sheets ranging from 2 to 4 m in diameter and are up to 10 mm thick. Several modules may be arranged in parallel and/or in series to meet the flow and treatment requirements.

  5. Degasser - Wikipedia

    en.wikipedia.org/wiki/Degasser

    It can be located immediately downstream of the production separators prior to low pressure water treatment system such as dissolved gas flotation. In this case the degasser may also act as a surge drum to ensure a steady flow of water to the treatment plant. Alternatively, it can be located downstream of produced water hydrocyclones. [4]

  6. Water treatment - Wikipedia

    en.wikipedia.org/wiki/Water_treatment

    Cooling towers can also scale up and corrode, but left untreated, the warm, dirty water they can contain will encourage bacteria to grow, and Legionnaires' disease can be the fatal consequence. Water treatment is also used to improve the quality of water contacting the manufactured product (e.g., semiconductors) and/or can be part of the ...

  7. Fix problems signing into your AOL account - AOL Help

    help.aol.com/articles/help-signing-in

    Try another web browser - If you can access your account in another browser, the problem isn't with your account; you'll need to fix the issue in your preferred browser. Someone changed your password - An unauthorized party could have broken in and changed your password. Use the Sign-in Helper to get back into your account and change your password.

  8. Passive treatment system - Wikipedia

    en.wikipedia.org/wiki/Passive_treatment_system

    A hybrid system using Flowforms in a passive treatment pond, in Norway. There are many types of water treatment systems available for removing metals from acid mine drainage. Passive treatment systems are a relatively recent technology that involves using sulfate-reducing bacteria or limestone or both to neutralize acidity and precipitate metals.

  9. AOL Mail for Verizon Customers - AOL Help

    help.aol.com/products/aol-mail-verizon

    AOL Mail welcomes Verizon customers to our safe and delightful email experience!