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  2. Marine sanitation device - Wikipedia

    en.wikipedia.org/wiki/Marine_Sanitation_Device

    Marine sanitation device. (Redirected from Marine Sanitation Device) A marine sanitation device ( MSD) is a piece of machinery or a mechanical system that is dedicated to treat, process, and/or store raw, untreated sewage that can accumulate onboard water vessels. It does not refer to portable devices such as portable toilets.

  3. Water pollution in the United States - Wikipedia

    en.wikipedia.org/wiki/Water_pollution_in_the...

    Wastewater discharged by factories, mines and other businesses increased as the economy expanded. Large cities, and later smaller communities, began to install drinking water treatment systems in the early 20th century, [9] but sewage treatment plants were limited at that time and not very effective. [2]

  4. Dissolved air flotation - Wikipedia

    en.wikipedia.org/wiki/Dissolved_air_flotation

    Dissolved air flotation. Dissolved air flotation ( DAF) is a water treatment process that clarifies wastewaters (or other waters) by the removal of suspended matter such as oil or solids. The removal is achieved by dissolving air in the water or wastewater under pressure and then releasing the air at atmospheric pressure in a flotation tank basin.

  5. With sewage gushing into sea, US and Mexican border towns ...

    www.aol.com/news/sewage-gushing-sea-us-mexican...

    It is outflow from San Antonio de los Buenos, Tijuana's broken-down sewage treatment plant. Mexico says a new $33.3 million plant under construction is scheduled to come online by Sept. 30. For ...

  6. Akron gets approval for smaller Northside Interceptor Tunnel ...

    www.aol.com/akron-gets-approval-smaller-north...

    The U.S. EPA, which mandated the project, had initially proposed the larger size for the tunnel, which will store combined sewage and stormwater for treatment in the city's wastewater treatment plant.

  7. Upflow anaerobic sludge blanket digestion - Wikipedia

    en.wikipedia.org/wiki/Upflow_anaerobic_sludge...

    Upflow anaerobic sludge blanket ( UASB) technology, normally referred to as UASB reactor, is a form of anaerobic digester that is used for wastewater treatment . The UASB reactor is a methanogenic (methane-producing) digester that evolved from the anaerobic clarigester. A similar but variant technology to UASB is the expanded granular sludge ...

  8. Ohio EPA pulls plan for small sewage-treatment plants in ...

    www.aol.com/ohio-epa-pulls-plan-small-101258709.html

    The Ohio Environmental Protection Agency heard the message loud and clear. It has withdrawn a controversial proposal to allow small, privately operated sewage-treatment plants to aid rapid ...

  9. List of largest wastewater treatment plants - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_wastewater...

    Shanghai Zhuyan I Wastewater Treatment Plant [16] Shanghai China: 2004 1 700 000 Stonecutters Island Sewage Treatment [17] Hong Kong China: 2001 2 765 000 [18] Bailonggang Wastewater Treatment Plant Shanghai China: 1999 2 000 000 Gabal el Asfar Wastewater Treatment Plant Cairo Egypt: 1 700 000 2 500 000 [19] 1.63 Beckton Sewage Treatment Works ...