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  2. Pond liner - Wikipedia

    en.wikipedia.org/wiki/Pond_liner

    Pond liners need to be protected from sharp objects (for example, stones) below the liner and from being punctured by any objects in the water body. Protection can be provided with layers of sand, geotextiles (particularly needle-punched nonwovens) and other materials. Pond liners are manufactured in rolls or accordion-folded on pallets.

  3. Settling basin - Wikipedia

    en.wikipedia.org/wiki/Settling_basin

    A settling basin, settling pond or decant pond is an earthen or concrete structure using sedimentation to remove settleable matter and turbidity from wastewater. The basins are used to control water pollution in diverse industries such as agriculture , [ 1 ] aquaculture , [ 2 ] and mining .

  4. Garden pond - Wikipedia

    en.wikipedia.org/wiki/Garden_pond

    Usually, the pond will be filled by a combination of tap water, rainwater, and surface runoff – and lost to evaporation. In soils that lack natural clay, additional water loss to drainage and permeation is prevented by a liner. Pond liners are PVC or EPDM foils that are placed between the soil of the pond bed and the water. Liners can also be ...

  5. Facultative lagoon - Wikipedia

    en.wikipedia.org/wiki/Facultative_lagoon

    Facultative lagoon (polishing pond) providing tertiary treatment after a constructed wetland in Hamburg-Allermöhe, Germany. Overflow from the facultative lagoon may be routed through one or more polishing ponds supporting lower populations of anaerobic micro-organisms and a higher proportion of aerobic organisms adapted to survival in lower concentrations of organic material.

  6. Ash pond - Wikipedia

    en.wikipedia.org/wiki/Ash_pond

    An ash pond, also called a coal ash basin or surface impoundment, [1] is an engineered structure used at coal-fired power stations for the disposal of two types of coal combustion products: bottom ash and fly ash. The pond is used as a landfill to prevent the release of ash into the atmosphere.

  7. Retention basin - Wikipedia

    en.wikipedia.org/wiki/Retention_basin

    Storm water is typically channeled to a retention basin through a system of street and/or parking lot storm drains, and a network of drain channels or underground pipes.. The basins are designed to allow relatively large flows of water to enter, but discharges to receiving waters are limited by outlet structures that function only during very large storm eve