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  2. Leaching (agriculture) - Wikipedia

    en.wikipedia.org/wiki/Leaching_(agriculture)

    Leaching may also refer to the practice of applying a small amount of excess irrigation where the water has a high salt content to avoid salts from building up in the soil (salinity control). Where this is practiced, drainage must also usually be employed, to carry away the excess water.

  3. Leaching model (soil) - Wikipedia

    en.wikipedia.org/wiki/Leaching_model_(soil)

    A leaching model is a hydrological model by which the leaching with irrigation water of dissolved substances, notably salt, in the soil is described depending on the hydrological regime and the soil's properties. The model may describe the process (1) in time and (2) as a function of amount of water applied.

  4. Soil salinity control - Wikipedia

    en.wikipedia.org/wiki/Soil_salinity_control

    For example, assuming irrigation water with a low salt concentration of 0.3 g/L (equal to 0.3 kg/m 3 corresponding to an electric conductivity of about 0.5 FdS/m) and a modest annual supply of irrigation water of 10,000 m 3 /ha (almost 3 mm/day) brings 3,000 kg salt/ha each year.

  5. Percolation test - Wikipedia

    en.wikipedia.org/wiki/Percolation_test

    A fire hose is used to fill the pit as quickly as possible, and then, again, its dissipation rate is observed. This rate calculates the size and number of pits necessary for a viable septic system. Finally, a "deep hole" is drilled to find the water table or to approximately twelve feet (dry) for leach line systems and horizontal seepage pits.

  6. Leachate - Wikipedia

    en.wikipedia.org/wiki/Leachate

    In a landfill that receives a mixture of municipal, commercial, and mixed industrial waste but excludes significant amounts of concentrated chemical waste, landfill leachate may be characterized as a water-based solution of four groups of contaminants: dissolved organic matter (alcohols, acids, aldehydes, short chain sugars, etc.), inorganic ...

  7. Septic drain field - Wikipedia

    en.wikipedia.org/wiki/Septic_drain_field

    A septic drain field, a septic tank, and associated piping compose a septic system. The drain field typically consists of an arrangement of trenches containing perforated pipes and porous material (often gravel) covered by a layer of soil to prevent animals (and surface runoff) from reaching the wastewater distributed within those trenches. [1]

  8. Here's why you should avoid draining pasta in the sink ... - AOL

    www.aol.com/lifestyle/2018-04-10-heres-why-you...

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  9. Groundwater pollution - Wikipedia

    en.wikipedia.org/wiki/Groundwater_pollution

    Liquids leach from the pit and pass the unsaturated soil zone (which is not completely filled with water). Subsequently, these liquids from the pit enter the groundwater where they may lead to groundwater pollution. This is a problem if a nearby water well is used to supply groundwater for drinking water purposes.