what is rainwater harvesting? suggest various methods of conserving water resources
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Rainwater harvesting is a technique used for collecting, storing and using rainwater for landscape irrigation and other uses. The rainwater is collected from various hard surfaces such as rooftops and/or other manmade aboveground hard surfaces.
Some various methods are as follows:
Catchment surface - rooftop or other raised solid surface. The best catchment systems have hard, smooth surfaces such as metal roofs or concrete areas. The amount of water harvested depends on the quantity of rainfall, the size of the surface and the slope of the catchment area.
Gutters and downspouts - also known as distribution systems. They channel water from the catchment .area to a holding container such as a barrel, cistern or planted area
Leaf screens - a screen that removes or catches debris.
Roof washers - a device that diverts the "first flush" of rain before it enters the storage tank. Most rainwater suppliers recommend that the "first flush" of water is diverted to an outside area of the storage system since the catchment surface may accumulate bird droppings, debris and other pollution.
Storage tanks - In general, the storage tank is the most expensive component of a rainwater harvesting system. There are numerous types and styles of storage tanks available. Storage can be aboveground or underground. Storage containers can be made from galvanized steel, wood, concrete, clay, plastic, fiberglass, polyethylene, masonry and more. Examples of aboveground storage include cisterns, barrels, tanks, garbage cans, aboveground swimming pools and more. Storage tank prices vary based on variables such as size, material and complexity. To inhibit the growth of algae, storage tanks should be opaque and preferably placed away from direct sunlight. The tanks should also be placed close to the area of use and supply line to reduce the distance over which the water is delivered. Also consider placing the storage on an elevated area to take advantage of gravity flow. The tank should always be placed on a stable and level area to prevent it from leaning and possibly collapsing.
Some various methods are as follows:
Catchment surface - rooftop or other raised solid surface. The best catchment systems have hard, smooth surfaces such as metal roofs or concrete areas. The amount of water harvested depends on the quantity of rainfall, the size of the surface and the slope of the catchment area.
Gutters and downspouts - also known as distribution systems. They channel water from the catchment .area to a holding container such as a barrel, cistern or planted area
Leaf screens - a screen that removes or catches debris.
Roof washers - a device that diverts the "first flush" of rain before it enters the storage tank. Most rainwater suppliers recommend that the "first flush" of water is diverted to an outside area of the storage system since the catchment surface may accumulate bird droppings, debris and other pollution.
Storage tanks - In general, the storage tank is the most expensive component of a rainwater harvesting system. There are numerous types and styles of storage tanks available. Storage can be aboveground or underground. Storage containers can be made from galvanized steel, wood, concrete, clay, plastic, fiberglass, polyethylene, masonry and more. Examples of aboveground storage include cisterns, barrels, tanks, garbage cans, aboveground swimming pools and more. Storage tank prices vary based on variables such as size, material and complexity. To inhibit the growth of algae, storage tanks should be opaque and preferably placed away from direct sunlight. The tanks should also be placed close to the area of use and supply line to reduce the distance over which the water is delivered. Also consider placing the storage on an elevated area to take advantage of gravity flow. The tank should always be placed on a stable and level area to prevent it from leaning and possibly collapsing.
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Rain water harvesting is a technique of collection and storage of rainwater into natural reservoirs or tanks, or the infiltration of surface water into subsurface aquifers.
Digging ponds, lakes, canals, expanding the water reservoir, and installing rain water catching ducts and filtration systems on homes are different methods of harvesting rain water.
Hope that answer helped!!!
Digging ponds, lakes, canals, expanding the water reservoir, and installing rain water catching ducts and filtration systems on homes are different methods of harvesting rain water.
Hope that answer helped!!!
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