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  2. Raleigh Water Works and E.B. Bain Water Treatment Plant

    en.wikipedia.org/wiki/Raleigh_Water_Works_and_E...

    Raleigh Water Works and E.B. Bain Water Treatment Plant is a historic water works complex located at Raleigh, North Carolina. The original section was built in 1941, with additions made about 1946–1947, and in the 1960s.

  3. Sewerage - Wikipedia

    en.wikipedia.org/wiki/Sewerage

    Depending on the concrete condition and contamination, the cleaning can range from simple high pressure jet water cleaning (200 bar) up to real hydro-demolition (2000 bars). One method to ensure sound concrete is exposed is to verify that the surface pH is superior to 10. As for any concrete repair, the state-of-the-art rules must be followed.

  4. Wastewater treatment - Wikipedia

    en.wikipedia.org/wiki/Wastewater_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. [5]

  5. 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]

  6. Waste management - Wikipedia

    en.wikipedia.org/wiki/Waste_management

    This practice may encourage disposal contractors to opt for the cheapest disposal option such as landfill rather than the environmentally best solution such as re-use and recycling. Financing solid waste management projects can be overwhelming for the city government, especially if the government see it as an important service they should ...

  7. Urban Waste Water Treatment Directive - Wikipedia

    en.wikipedia.org/wiki/Urban_Waste_Water...

    Council Directive 91/271/EEC on Urban Wastewater Treatment was adopted on 21 May 1991, [1] amended by the Commission Directive 98/15/EC. [ 2 ] It prescribes the waste water collection and treatment in urban agglomerations with a population equivalent of over 2000, and more advanced treatment in places with a population equivalent greater than ...

  8. 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]

  9. Sewage sludge - Wikipedia

    en.wikipedia.org/wiki/Sewage_sludge

    Sewage sludge treatment is the process of removing contaminants from wastewater.Sewage sludge is produced from the treatment of wastewater in sewage treatment plants and consists of two basic forms — raw primary sludge and secondary sludge, also known as activated sludge in the case of the activated sludge process.