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  2. Rotating biological contactor - Wikipedia

    en.wikipedia.org/wiki/Rotating_biological_contactor

    A schematic cross-section of the contact face of the bed media in a rotating biological contactor (RBC) [7] The rotating packs of disks (known as the media) are contained in a tank or trough and rotate at between 2 and 5 revolutions per minute. Commonly used plastics for the media are polyethylene, PVC and expanded polystyrene. The shaft is ...

  3. Electrochlorination - Wikipedia

    en.wikipedia.org/wiki/Electrochlorination

    The solution travels to a tank that separates the hydrogen gas based on its low density. [1] Only water and sodium chloride are used. The simplified chemical reaction is: NaCl + H 2 O + energy → NaOCl + H 2 [citation needed] That is, energy is added to sodium chloride (table salt) in water, producing sodium hypochlorite and hydrogen gas.

  4. Gas cylinder - Wikipedia

    en.wikipedia.org/wiki/Gas_cylinder

    The term cylinder in this context is sometimes confused with tank, the latter being an open-top or vented container that stores liquids under gravity, though the term scuba tank is commonly used to refer to a compressed gas cylinder used for breathing gas supply to an underwater breathing apparatus.

  5. Chlorine gas poisoning - Wikipedia

    en.wikipedia.org/wiki/Chlorine_gas_poisoning

    Chlorine gas poisoning is an illness resulting from the effects of exposure to chlorine beyond the threshold limit value. Acute chlorine gas poisoning primarily affects the respiratory system , causing difficulty breathing, cough, irritation of the eyes, nose, and throat, and sometimes skin irritation .

  6. Marine sanitation device - Wikipedia

    en.wikipedia.org/wiki/Marine_Sanitation_Device

    In Type I MSDs, sewage is broken down usually through the use of chlorination and/ or maceration. The chlorination process is usually done within a large tank sometimes referred to as the contact chamber. By adding chlorine to the sewage, the effluent is sanitized and it is discharged from the MSD.

  7. Diatomaceous earth filtration - Wikipedia

    en.wikipedia.org/wiki/Diatomaceous_earth_filtration

    The process of D.E. filtration is composed of three main stages: pre-coating, body feed, and cleaning. [ 1 ] Due to the precision of diatomaceous earth filtration; being able to capture dangerous and microscopic particles while maintaining efficiency has allowed D.E. filters to be a highly popularized choice for aquariums , wastewater treatment ...

  8. Swimming pool sanitation - Wikipedia

    en.wikipedia.org/wiki/Swimming_pool_sanitation

    Two distinct and separate methods are employed in the sanitation of a swimming pool. The filtration system removes organic waste on a daily basis by using the sieve baskets inside the skimmer and circulation pump and the sand unit with a backwash facility for easy removal of organic waste from the water circulation.

  9. Water purification - Wikipedia

    en.wikipedia.org/wiki/Water_purification

    Chlorine is a strong oxidant that rapidly kills many harmful micro-organisms. Because chlorine is a toxic gas, there is a danger of a release associated with its use. This problem is avoided by the use of sodium hypochlorite, which is a relatively inexpensive solution used in household bleach that releases free chlorine when dissolved in water ...