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A pond is smaller than a lake [1] and there are no official criteria distinguishing the two, although defining a pond to be less than 5 hectares (12 acres) in area, less than 5 metres (16 ft) in depth and with less than 30% of its area covered by emergent vegetation helps in distinguishing the ecology of ponds from those of lakes and wetlands.
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 .
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
Ponds may be created by natural processes or by people; however, the origin of the hole in the ground makes little difference to the kind of wildlife that will be found in the pond. Much more important is whether the pond is polluted or clean, how close it is to other wetlands and its depth , particularly whether it dries out from time to time ...
Maturation ponds must be shallow (around 1.0 m depth or less) with a great surface area so that more oxygen can dissolve into the water giving the bacteria enough oxygen to properly function. [14] Shallow ponds benefit from high photosynthetic activity arising from the penetration of solar radiation.
The west end of the second pond is 800 yards (730 m) south of the overflow from the south end of the lower basin of the first pond. The east end of the second pond overflows into the third pond 1 mile (1.6 km) to the east. [2] The second pond is the shallowest of the chain, and offers the least favorable habitat for brook trout.
Dry pond on brook to reduce floods, near Děčín, Czech Republic. A detention basin or retarding basin is an excavated area installed on, or adjacent to, tributaries of rivers, streams, lakes or bays to protect against flooding and, in some cases, downstream erosion by storing water for a limited period of time.
is the constant or equilibrium infiltration rate after the soil has been saturated or the minimum infiltration rate; is the decay constant specific to the soil. The other method of using Horton's equation is as below. It can be used to find the total volume of infiltration, F, after time t.
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