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  2. Maynilad Water Services - Wikipedia

    en.wikipedia.org/wiki/Maynilad_Water_Services

    Maynilad Water Services, Inc., better known as Maynilad, is the water and wastewater services provider of cities and municipalities that form the West Zone of the Greater Manila Area in the Philippines. It is an agent and contractor of the Metropolitan Waterworks and Sewerage System (MWSS). [1]

  3. Water privatization in Metro Manila - Wikipedia

    en.wikipedia.org/wiki/Water_privatization_in...

    On that basis it submitted a very low tariff that allowed it to win the concession. In 2001, Manila Water succeeded in having its rate of return increased to 9.3 percent after international arbitration. Maynilad's bid had a more realistic 10.4 percent rate of return in its bid had from the beginning. [8]

  4. Water supply and sanitation in the Philippines - Wikipedia

    en.wikipedia.org/wiki/Water_supply_and...

    The vast majority used flush toilets connected to septic tanks. Since sludge treatment and disposal facilities were rare, most effluents were discharged without treatment. [26] Within the entire country, septic tanks are the most common method of sewage treatment. In Metro Manila alone, about 75 local companies provide tank-desludging services ...

  5. Septic tank - Wikipedia

    en.wikipedia.org/wiki/Septic_tank

    A septic tank is an underground chamber made of concrete, fiberglass, or plastic through which domestic wastewater flows for basic sewage treatment. [2] Settling and anaerobic digestion processes reduce solids and organics, but the treatment efficiency is only moderate (referred to as "primary treatment"). [2]

  6. 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]

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  8. Metropolitan Waterworks and Sewerage System - Wikipedia

    en.wikipedia.org/wiki/Metropolitan_Waterworks...

    The Metropolitan Waterworks and Sewerage System [1] (Tagalog: Pangasiwaan ng Tubig at Alkantarilya sa Kalakhang Maynila), [5] formerly known as the National Waterworks and Sewerage System Authority (NAWASA), is the government agency that is in charge of water privatization in Metro Manila and nearby provinces of Cavite and Rizal in the Philippines.

  9. Sewage - Wikipedia

    en.wikipedia.org/wiki/Sewage

    Sewage (or domestic wastewater) consists of wastewater discharged from residences and from commercial, institutional and public facilities that exist in the locality. [2]: 10 Sewage is a mixture of water (from the community's water supply), human excreta (feces and urine), used water from bathrooms, food preparation wastes, laundry wastewater, and other waste products of normal living.