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  2. Water management in the Metropolitan Region of São Paulo

    en.wikipedia.org/wiki/Water_management_in_the...

    In addition, defects in the wastewater treatment system have caused wastewater to overflow into the tributaries of the Guarapiranga reservoir. Defects in infrastructure for collecting and transporting sewage to the wastewater treatment plants also cause problems.

  3. Sewage treatment - Wikipedia

    en.wikipedia.org/wiki/Sewage_treatment

    Sewage treatment (or domestic wastewater treatment, municipal wastewater treatment) is a type of wastewater treatment which aims to remove contaminants from sewage to produce an effluent that is suitable to discharge to the surrounding environment or an intended reuse application, thereby preventing water pollution from raw sewage discharges. [2] Sewage contains wastewater from households and ...

  4. Secondary treatment - Wikipedia

    en.wikipedia.org/wiki/Secondary_treatment

    Secondary treatment (mostly biological wastewater treatment) is the removal of biodegradable organic matter (in solution or suspension) from sewage or similar kinds of wastewater. [1]: 11 The aim is to achieve a certain degree of effluent quality in a sewage treatment plant suitable for the intended disposal or reuse option.

  5. Membrane bioreactor - Wikipedia

    en.wikipedia.org/wiki/Membrane_bioreactor

    Membrane bioreactors are combinations of membrane processes like microfiltration or ultrafiltration with a biological wastewater treatment process, the activated sludge process. These technologies are now widely used for municipal and industrial wastewater treatment. [1] The two basic membrane bioreactor configurations are the submerged ...

  6. Water management in Greater Mexico City - Wikipedia

    en.wikipedia.org/wiki/Water_management_in...

    A view of Mexico City with Paseo de la Reforma and Torre Mayor. The water infrastructure in Greater Mexico City consists of infrastructure for bulk water supply and water distribution (water supply), wastewater collection, storm water collection and wastewater treatment (sanitation), and for irrigation using mainly wastewater.

  7. Sanitary sewer - Wikipedia

    en.wikipedia.org/wiki/Sanitary_sewer

    Sanitary sewers are a type of gravity sewer and are part of an overall system called a "sewage system" or sewerage. Sanitary sewers serving industrial areas may also carry industrial wastewater. In municipalities served by sanitary sewers, separate storm drains may convey surface runoff directly to surface waters.

  8. Trickling filter - Wikipedia

    en.wikipedia.org/wiki/Trickling_filter

    Trickling filter. A trickling filter is a type of wastewater treatment system. It consists of a fixed bed of rocks, coke, gravel, slag, polyurethane foam, sphagnum peat moss, ceramic, or plastic media over which sewage or other wastewater flows downward and causes a layer of microbial slime (biofilm) to grow, covering the bed of media.

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

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

    To ensure humanity has enough to drink, some of NASA’s cutting-edge in-orbit water recycling research is coming back down to Earth.

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