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  2. Marine sanitation device - Wikipedia

    en.wikipedia.org/wiki/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. Regulation of ship pollution in the United States - Wikipedia

    en.wikipedia.org/wiki/Regulation_of_ship...

    Section 312 has another means of addressing sewage discharges, through establishment of no-discharge zones (NDZs) for vessel sewage. A state may completely prohibit the discharge of both treated and untreated sewage from all vessels with installed toilets into some or all waters over which it has jurisdiction (up to 3 miles (4.8 km) from land).

  4. Moving bed biofilm reactor - Wikipedia

    en.wikipedia.org/wiki/Moving_Bed_Biofilm_Reactor

    Moving bed biofilm reactor. Moving bed biofilm reactor ( MBBR) is a type of wastewater treatment process that was first invented by Professor Hallvard Ødegaard at Norwegian University of Science and Technology in the late 1980s. [ 1] The process takes place in an aeration tank with plastic carriers that a biofilm can grow on.

  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. Cruise ship pollution in the United States - Wikipedia

    en.wikipedia.org/wiki/Cruise_ship_pollution_in...

    Cruise ships are subject to this prohibition. Commercial and recreational vessels with installed toilets are required to have marine sanitation devices, which are designed to prevent the discharge of untreated sewage. Beyond 3 miles (4.8 km), raw sewage can be discharged.

  7. Harmful algal bloom - Wikipedia

    en.wikipedia.org/wiki/Harmful_algal_bloom

    A harmful algal bloom ( HAB ), or excessive algae growth, is an algal bloom that causes negative impacts to other organisms by production of natural algae-produced toxins, mechanical damage to other organisms, or by other means. HABs are sometimes defined as only those algal blooms that produce toxins, and sometimes as any algal bloom that can ...

  8. Water recycling technologies developed for space are helping ...

    www.engadget.com/water-recycling-technologies...

    The station’s Water Processing Assembly can produce up to 36 gallons of drinkable water every day from the crew’s sweat, breath and urine. When it was installed in 2008, the station’s water ...

  9. 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 ...