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  2. International Boundary Wastewater Treatment Plant - Wikipedia

    en.wikipedia.org/wiki/International_Boundary...

    The project cost the U.S. a total of $239 million [7] initially, and the addition of secondary treatment technology that helped meet regulations so the water could flow to the U.S. side of the border cost an additional $18 million. The treatment plant supports a daily flow of 25 million gallons of raw sewage per day.

  3. Extended aeration - Wikipedia

    en.wikipedia.org/wiki/Extended_aeration

    Extended aeration is typically used in prefabricated "package plants" intended to minimize design costs for waste disposal from small communities, tourist facilities, or schools. In comparison to traditional activated sludge, longer mixing time with aged sludge offers a stable biological ecosystem better adapted for effectively treating waste ...

  4. Activated sludge - Wikipedia

    en.wikipedia.org/wiki/Activated_sludge

    In the UK, where a large number of wastewater treatment plants serve small populations, package plants are a viable alternative to building a large structure for each process stage. In the US, package plants are typically used in rural areas, highway rest stops and trailer parks. [15] Package plants may be referred to as high charged or low ...

  5. Onsite sewage facility - Wikipedia

    en.wikipedia.org/wiki/Onsite_sewage_facility

    OSSFs account for approximately 25% of all domestic wastewater treatment in the US. Onsite sewage facilities may also be based on small-scale aerobic and biofilter units, membrane bioreactors or sequencing batch reactors. These can be thought of as scaled down versions of municipal sewage treatment plants, and are also known as "package plants ...

  6. Sewage treatment - Wikipedia

    en.wikipedia.org/wiki/Sewage_treatment

    Activated sludge sewage treatment plant in Massachusetts, US. The term sewage treatment plant (STP) (or sewage treatment works) is nowadays often replaced with the term wastewater treatment plant (WWTP). [7] [8] Strictly speaking, the latter is a broader term that can also refer to industrial wastewater treatment.

  7. Brightwater Treatment Plant - Wikipedia

    en.wikipedia.org/wiki/Brightwater_Treatment_Plant

    Brightwater is a 114-acre (46 ha) facility at the intersection of State Route 9 and State Route 522 north of Woodinville. [2] The plant itself occupies 114 acres (46 ha); the remainder of the property is used for stormwater treatment and environmental mitigation such as constructed wetlands and stormwater retention.

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