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  2. Decentralized wastewater system - Wikipedia

    en.wikipedia.org/.../Decentralized_wastewater_system

    A case study of a decentralized wastewater system at on-site level with treated effluent reuse was performed at the Botswana Technology Centre in Gaborone, Botswana. [22] It is an example of a decentralized wastewater system, which serves one institutional building, located in an area served by municipal sewerage.

  3. Distributed generation - Wikipedia

    en.wikipedia.org/wiki/Distributed_generation

    Distributed generation, also distributed energy, on-site generation (OSG), [1] or district/decentralized energy, is electrical generation and storage performed by a variety of small, grid-connected or distribution system-connected devices referred to as distributed energy resources (DER).

  4. Water supply network - Wikipedia

    en.wikipedia.org/wiki/Water_supply_network

    The sustainable water supply system is an integrated system including water intake, water utilization, wastewater discharge and treatment and water environmental protection. It requires reducing freshwater and groundwater usage in all sectors of consumption.

  5. Water-energy nexus - Wikipedia

    en.wikipedia.org/wiki/Water-energy_nexus

    Hybrid Sankey diagram of 2011 U.S. interconnected water and energy flows. The water-energy nexus is the relationship between the water used for energy production, [1] including both electricity and sources of fuel such as oil and natural gas, and the energy consumed to extract, purify, deliver, heat/cool, treat and dispose of water (and wastewater) sometimes referred to as the energy intensity ...

  6. Sewage treatment - Wikipedia

    en.wikipedia.org/wiki/Sewage_treatment

    Examples for more low-tech, often less expensive sewage treatment systems are shown below. They often use little or no energy. Some of these systems do not provide a high level of treatment, or only treat part of the sewage (for example only the toilet wastewater), or they only provide pre-treatment, like septic tanks. On the other hand, some ...

  7. List of countries by access to clean water - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    An improved water source, as defined by the World Health Organization (WHO), refers to a drinking water source that provides adequate and safe water for human consumption. Examples of improved water sources include piped water connections, protected wells, boreholes with hand pumps, packaged or delivered water and rainwater collection systems ...

  8. Municipal wastewater treatment energy management - Wikipedia

    en.wikipedia.org/wiki/Municipal_wastewater...

    Among the water and wastewater services of a city, wastewater treatment is usually the most energy intense process. [2]Wastewater treatment plants are designed with the purpose of treating the influent sewage to a set quality before discharging it back into a water body, without real concern for the energy consumption of the treating units of a plant.

  9. Cogeneration - Wikipedia

    en.wikipedia.org/wiki/Cogeneration

    This is also called combined heat and power district heating. Small CHP plants are an example of decentralized energy. [2] By-product heat at moderate temperatures (100–180 °C (212–356 °F) can also be used in absorption refrigerators for cooling. The supply of high-temperature heat first drives a gas or steam turbine-powered generator ...