Evaporation pond

An aerial view of the evaporation ponds to the south of the Dead Sea operated by the Dead Sea Works

Evaporation ponds are artificial ponds with very large surface areas that are designed to efficiently evaporate water by sunlight and exposure to the ambient temperatures.

Uses

Evaporation ponds have several uses. Salt evaporation ponds produce salt from seawater. They are also used to dispose of brine from desalination plants. Mines use ponds to separate ore from water. Evaporation ponds at contaminated sites remove the water from hazardous waste, which greatly reduces its weight and volume and allows the waste to be more easily transported, treated and stored. It is important to understand that evaporation is not the same as condensation although evaporation in an enclosed environment can subsequently lead to the condition of condensation as evaporated moisture is "condensed" out of the air and is reverted to a liquid stage.

Evaporation ponds can also be used to evaporate the precipitation that falls on a contaminated site. The contaminants that the water picks up on the ground are left behind after it evaporates. This prevents the contamination from spreading further down the watershed.

Evaporation ponds are used to prevent pesticides, fertilizers and salts from agricultural wastewater from contaminating the water bodies they would flow into. In California, selenium in agricultural wastewater has been especially problematic, causing birth defects in waterfowl.

References

Wastewater

Sources of wastewater	Acid mine drainage Ballast water Blackwater (coal) Blackwater (waste) Boiler blowdown Brine Combined sewer Cooling tower Cooling water Greywater Infiltration/Inflow Industrial effluent Ion exchange Leachate Manure Papermaking Produced water Return flow Reverse osmosis Sanitary sewer Sewage Sewage sludge Storm drain Urban runoff

Wastewater quality indicators	Biochemical oxygen demand Chemical oxygen demand Coliform index Dissolved oxygen Heavy metals pH Salinity Temperature Total dissolved solids Total suspended solids Turbidity

Wastewater treatment options	Activated sludge Aerated lagoon Agricultural wastewater treatment API oil-water separator Carbon filtration Chlorination Clarifier Constructed wetland Extended aeration Facultative lagoon Filtration Imhoff tank Industrial wastewater treatment Ion exchange Membrane bioreactor Reverse osmosis Rotating biological contactor Secondary treatment Sedimentation Septic tank Settling basin Sewage sludge treatment Sewage treatment Stabilization pond Trickling filter Ultraviolet germicidal irradiation UASB Wastewater treatment plant

Wastewater disposal options	Combined sewer Evaporation pond Groundwater recharge Infiltration basin Injection well Irrigation Marine dumping Marine outfall Sanitary sewer Septic drain field Sewerage Stabilization pond Storm drain Surface runoff Water reclamation

Ponds, pools and puddles

Ponds	Ash pond Balancing pond Ballast pond Beel Cooling pond Detention pond Dew pond Evaporation pond Facultative pond Garden pond Ice pond Immersion pond Kettle pond Log pond Melt pond Mill pond Raceway pond Retention pond Sag pond Salt evaporation pond Sediment pond Settling pond Solar pond Stabilization pond Stepwell Stew pond Stormwater management pond Polishing pond Tailings pond Tarn Treatment pond Waste pond

Pools	Anchialine pool Brine pool Natural pool Plunge pool Reflecting pool Spent fuel pool Stream pool Swimming pool Tide pool Vernal pool

Puddles	Bird bath Coffee ring effect Puddle Puddles on a surface Seep puddle

Biota	Beaver pond Duck pond Fish pond Goldfish pond Koi pond

Ecosystems	Freshwater ecosystem Lake ecosystem Lentic ecosystem Pond ecosystem

Related topics	Aerated pond Bakki shower Big fish–little pond Body of water Full pond Hydric soil Phytotelma Water aeration Pond of Abundance Pond liner Ponding The Pond Puddle (M C Escher) Spring Swimming hole Water garden Water Lilies (Monet) Water well

This article is issued from Wikipedia - version of the Tuesday, April 14, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.

Evaporation pond

Uses

See also

References