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  2. External floating roof tank - Wikipedia

    en.wikipedia.org/wiki/External_floating_roof_tank

    The roof rises and falls with the liquid level in the tank. [1] As opposed to a fixed roof tank there is no vapor space in the floating roof tank (except for very low liquid level situations). In principle, this eliminates tank breathing loss and greatly reduces the evaporative loss of the stored liquid. There is a rim seal system between the ...

  3. Stormwater fee - Wikipedia

    en.wikipedia.org/wiki/Stormwater_fee

    Stormwater fee. A stormwater fee is a charge imposed on real estate owners for pollution in stormwater drainage from impervious surface runoff. This system imposes a tax that is proportional to the total impervious area on a particular property, including concrete or asphalt driveways and roofs, that do not allow rain to infiltrate.

  4. Solar water heating - Wikipedia

    en.wikipedia.org/wiki/Solar_water_heating

    Costs and payback periods for residential SWH systems with savings of 200 kWh/month (using 2010 data), ex maintenance costs, subsidies and installation costs Country Curr­ency System cost Subsidy(%) Effective cost Electricity cost/kWh Electricity savings/month Payback period(y) Brazil: BRL: 2500 [53] 0: 2500: 0.25: 50: 4.2 South Africa: ZAR ...

  5. Floating solar - Wikipedia

    en.wikipedia.org/wiki/Floating_solar

    Floating solar. Floating solar or floating photovoltaics (FPV), sometimes called floatovoltaics, are solar panels mounted on a structure that floats on a body of water, typically a reservoir or a lake such as drinking water reservoirs, quarry lakes, irrigation canals or remediation and tailing ponds. [1][2][3][4][5] The systems can have ...

  6. Storm drain - Wikipedia

    en.wikipedia.org/wiki/Storm_drain

    Storm drain grate on a street in Warsaw, Poland Storm drain with its pipe visible beneath it due to construction work. A storm drain, storm sewer (United Kingdom, U.S. and Canada), highway drain [1], surface water drain/sewer (United Kingdom), or stormwater drain (Australia and New Zealand) is infrastructure designed to drain excess rain and ground water from impervious surfaces such as paved ...

  7. Phase I environmental site assessment - Wikipedia

    en.wikipedia.org/wiki/Phase_I_environmental_site...

    Any piece of real estate can be the subject of a Phase I ESA. In the United States, an environmental site assessment is a report prepared for a real estate holding that identifies potential or existing environmental contamination liabilities. The analysis, often called an ESA, typically addresses both the underlying land as well as physical ...

  8. Combined sewer - Wikipedia

    en.wikipedia.org/wiki/Combined_sewer

    Combined sewer outflow into the Anacostia River in Washington, D.C. Ratcliff Beach CSO discharges into the River Thames in London [7]. These relief structures, called "storm-water regulators" (in American English - or "combined sewer overflows" in British English) are constructed in combined sewer systems to divert flows in excess of the peak design flow of the sewage treatment plant. [6]

  9. Retention basin - Wikipedia

    en.wikipedia.org/wiki/Retention_basin

    Retention basin. A retention basin, sometimes called a retention pond, wet detention basin, or storm water management pond (SWMP), is an artificial pond with vegetation around the perimeter and a permanent pool of water in its design. [1][2][3] It is used to manage stormwater runoff, for protection against flooding, for erosion control, and to ...

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