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  2. Water supply and sanitation in the Philippines - Wikipedia

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

    Agricultural water management in the Philippines is primarily focused on irrigation. The country has 3.126 million hectares of irrigable land, 50% (1.567 million hectares) of which already has irrigation facilities. 50% of irrigated areas are developed and operated by the government through the National Irrigation System (NIS). 36% is developed by the government and operated by irrigators ...

  3. Water filter - Wikipedia

    en.wikipedia.org/wiki/Water_filter

    A water filter removes impurities by lowering contamination of water using a fine physical barrier, a chemical process, or a biological process. Filters cleanse water to different extents, for purposes such as: providing agricultural irrigation, accessible drinking water, public and private aquariums, and the safe use of ponds and swimming pools .

  4. Reverse osmosis - Wikipedia

    en.wikipedia.org/wiki/Reverse_osmosis

    Reverse osmosis ( RO) is a water purification process that uses a semi-permeable membrane to separate water molecules from other substances. RO applies pressure to overcome osmotic pressure that favors even distributions. RO can remove dissolved or suspended chemical species as well as biological substances (principally bacteria ), and is used ...

  5. National Water Resources Board - Wikipedia

    en.wikipedia.org/wiki/National_Water_Resources_Board

    Sevillo D. David Jr. Ph.D, Executive Director. Parent department. Department of Environment and Natural Resources. Website. www .nwrb .gov .ph. The National Water Resources Board (NWRB) is an agency of the Government of the Philippines working on water resources and potable water. It has policy-making, regulatory and quasi-judicial functions. [2]

  6. 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 ...

  7. Manila Water - Wikipedia

    en.wikipedia.org/wiki/Manila_Water

    Incorporated on January 6, 1997, Manila Water became a publicly listed company on March 18, 2005. It is the east concessionaire of Metropolitan Waterworks and Sewerage System during its privatization on August 1, 1997, with its counterpart Maynilad Water Services, Inc. as the west concessionaire. The 25-year water concession agreement inked ...

  8. Water privatization in Metro Manila - Wikipedia

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

    A residential bill for a consumption of 30 cubic meters per month, including an environmental charge and value-added tax, was 395 Pesos (US$10) or 13 Pesos/m3 (US$0.33/m3) as of 2008. A residential water bill for the same consumption in West Manila was 489 Pesos/m3 (US$12) or 16 Pesos/m3 (US$0.39/m3).

  9. Swimming pool sanitation - Wikipedia

    en.wikipedia.org/wiki/Swimming_pool_sanitation

    Other filter media that have been introduced to the residential swimming pool market since 1970 include sand particles and paper type cartridge filters of 50 to 150 square feet (4.6 to 13.9 m 2) filter area arranged in a tightly packed 12" diameter x 24" long (300 mm x 600 mm) accordion-like circular cartridge. These units can be 'daisy-chained ...

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