Evaporation in general is a beneficial phenomenon in regulating global water balance through the hydrological cycle and it is the same phenomenon contributing to massive losses from water bodies control of evaporation from land based water bodies, has thus remained one of the main planks of water conservation strategies. Evaporation control floating cover home » evaporation control floating cover evaporation control this inhibits the growth of algae and other water plants using an evaporation control cover will not only retain precious water volumes but will also help prevent the contamination of water through the growth of plants and algae. Across the world, freshwater is valued as the most critically important natural resource, as it is required to sustain the cycle of life evaporation is one of the primary environmental processes that can reduce the amount of quality water available for use in industrial, agricultural and household applications.
What ways for reduce evaporation of surface water (lake, river, ) evaporation is a process by which a liquid changes into vapor form water molecules are inconstant motion and some have the energy to break through water surface and escape into air as vapor.
It is estimated that such a film may reduce evaporation by one-third theoretically only 25 gm of hexadeconal is sufficient to spread a mono-molecular film on one hectare of water surface in practice, however, due to working problems as much as 100 times of theoretically required quantity may be necessary. Reducing evaporation losses from farm dams rainfalls in southern australia are declining and at the same time evaporation rates are increasing due to the warming climate so while the quantity of water that is getting into dams, reservoirs and rivers is decreasing, the evaporation losses from those storages are increasing and the water demand. Pure water, the effect of salinity on evaporation and the attendant temperature rise can be determined on the basis of measurements of air and water temperatures, humidity, and. Evaporation, in a technical sense, denotes the conversion of a liquid into a vapor for the purpose of separating it from another liquid of higher boiling point, or from a solid which is dissolved in it in the great majority of cases, the liquid evaporated is water if the liquid evaporated is to be recovered, the vapors are condensed, and the.
As water supplies become increasingly scarce, evaporation control on our ponds will become more important evaporation can be minimized by covering the liquid surface covers are normally used in arid climates where water or other liquid loss is a significant expense.
Maximizing wastewater reduction for the process industries tr-114205 final report, december 1999 maximizing wastewater reduction for the process industries, epri, palo alto, ca: 1999 tr-114205 evaporation easy economic water use reduction (air cooling, etc) already done in most existing. The exposed (warm) water around the sides of the pond will evaporate relatively quickly and cool the whole of the water body to some extent, but of course this will lessen the desired evaporation reduction aim. Review of literature on evaporation suppression by george b magin, jr, and lois e kandall abstract evaporation suppression is the reduction of evaporation by controlling the rate at which water vapor escapes from water evaporation studies of evaporation review of literature on evaporation suppression studies of evaporation review of.
When evaporation occurs, the energy removed from the vaporized liquid will reduce the temperature of the liquid, resulting in evaporative cooling the sun (solar energy) drives evaporation of water from oceans, lakes, moisture in the soil, and other sources of water. Evaporation is an essential part of the water cycle the sun (solar energy) drives evaporation of water from oceans, lakes, moisture in the soil, and other sources of water in hydrology , evaporation and transpiration (which involves evaporation within plant stomata ) are collectively termed evapotranspiration.
Eleventh international water technology conference, iwtc11 2007 sharm el-sheikh, egypt 179 evaporation reduction from lake naser using new environmentally safe techniques. Also, it was found that the synergistic use of the evaporation reduction mechanisms and the water aeration/bubbler system did not reduce evaporation rates, and may have had the reverse effect by gradually enhancing water loss. Evaporation of water occurs when the surface of the liquid is exposed, allowing molecules to escape and form water vapor this vapor can then rise up and form clouds with sufficient energy, the liquid will turn into vapor.