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  2. Decentralized wastewater system - Wikipedia

    en.wikipedia.org/.../Decentralized_wastewater_system

    Decentralized wastewater systems (also referred to as decentralized wastewater treatment systems) convey, treat and dispose or reuse wastewater from small and low-density communities, buildings and dwellings in remote areas, individual public or private properties. [1] Wastewater flow is generated when appropriate water supply is available ...

  3. Constructed wetland - Wikipedia

    en.wikipedia.org/wiki/Constructed_wetland

    Constructed wetlands have been used in both centralized and decentralized wastewater systems. Primary treatment is recommended when there is a large amount of suspended solids or soluble organic matter (measured as biochemical oxygen demand and chemical oxygen demand). [3]

  4. Bremen Overseas Research and Development Association

    en.wikipedia.org/wiki/Bremen_Overseas_Research...

    Under the project title “Capacity Building for local craftsmen and small medium enterprises for the sustainable implementation of decentralized wastewater treatment systems (DEWATS)”, BORDA has run project offices in Kabul and Herat since July 2012 with projects focused on vocational training.

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

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

    Wastewater treatment plants in California face a number of challenges, the Water Education Foundation notes, including aging infrastructure; contamination from improperly disposed pharmaceuticals ...

  6. Secondary treatment - Wikipedia

    en.wikipedia.org/wiki/Secondary_treatment

    Secondary treatment. This small secondary clarifier at a rural sewage treatment plant is a typical phase separation mechanism to remove biological solids formed in a suspended growth or fixed-film bioreactor. Secondary treatment (mostly biological wastewater treatment) is the removal of biodegradable organic matter (in solution or suspension ...

  7. 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]

  8. Fecal sludge management - Wikipedia

    en.wikipedia.org/wiki/Fecal_sludge_management

    Therefore, these areas will rely on a mix of onsite-sanitation systems and services, decentralized wastewater management systems, or by condominial or simplified sewerage connected to decentralized or centralized treatment. In all of these situations, FSM is a necessary service to keep the sanitation systems functioning properly.

  9. List of wastewater treatment technologies - Wikipedia

    en.wikipedia.org/wiki/List_of_wastewater...

    This page consists of a list of wastewater treatment technologies : Activated sludge model. Activated sludge systems. Adsorption/Bio-oxidation process. Advanced oxidation process. Aerated lagoon. Aerobic granular reactor. Aerobic granular sludge technology. Aerobic granulation.

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