Advantages and disadvantages of dams pdf. Types of Dams, advantages, disadvantages and classification 2022-10-30
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Dams are structures that are built across rivers, streams, or other bodies of water in order to control the flow of water and to store it for a variety of purposes. They are a common sight in many parts of the world and have been used for centuries to provide irrigation, generate hydroelectric power, and prevent flooding. However, dams also have a number of advantages and disadvantages that must be considered before they are constructed.
One of the main advantages of dams is that they can provide a reliable source of water for irrigation and domestic use. In areas where water is scarce, dams can be used to store water during times of plenty so that it is available for use during dry periods. This can help to increase agricultural productivity and support the growth of local communities. Dams can also be used to generate hydroelectric power, which is a clean and renewable source of energy. Hydroelectric dams can provide a stable and reliable source of electricity to communities that might otherwise be reliant on fossil fuels.
However, dams also have a number of disadvantages that must be taken into account. One of the main drawbacks of dams is that they can have a negative impact on the environment. When a dam is built, it can alter the flow of water in a river or stream, which can have a number of unintended consequences. For example, it can disrupt the migration patterns of fish, alter the habitats of other aquatic animals, and change the flow of sediment downstream. In addition, dams can also have a negative impact on the quality of the water that is stored behind them. Over time, reservoirs can become polluted with sediment and other contaminants, which can make the water unsafe for human consumption.
Another disadvantage of dams is that they can be expensive to build and maintain. The cost of constructing a dam can be significant, and it can take many years for the benefits of the dam to be realized. In addition, dams can require ongoing maintenance and repairs, which can be costly and time-consuming.
Despite these drawbacks, dams can be a valuable resource for many communities. By carefully considering the advantages and disadvantages of dams, communities can make informed decisions about whether or not to build them and can take steps to minimize the negative impacts that they may have.
17 Biggest Advantages and Disadvantages of Dams
One of the successful examples is Birecik Dam in the Southeastern Anatolia Region of Turkey. They can be constructed on any type of foundation 2. Attraction of tourists Dams may also be kind of a tourist magnet. Water Conservation A dam establishes One of the ways this is achieved is through storage. The flooding of large areas of land means that the natural environment is destroyed.
For example, large trees need to develop a deep root system to reach the depleted water table. A growing population has an ever-increasing demand for energy. The use of dams to impound mine waste also reduces the need and complexity of Another method by which dams control pollution, is by removing debris from water in streams and rivers as it flows downstream. New settlement areas were chosen by the affected people. Engineers over the past 6 years have steadily corralled the river so that the facility can generate 305 megawatts of electricity annually. We also use this engineering marvel to control floodwaters or to supply a fixed amount of fluid to the surrounding areas for agricultural irrigation.
Moreover, hydro power projects have the highest energy payback ratio among other electricity generation options. . Supply of about 19% of the energy of the world is done via the hydroelectricity, which offers more than about 3000 terawatts every year. In tropical countries like India, the rainfall is confined to a limited period of the year. This disadvantage can result in severe issues between neighbors, creating a constant source of conflict that can sometimes even lead to war. They fail all of the sudden without giving any pre-warning.
Advantages and Disadvantages of Dams: 17 Major Pros and Cons
Dams have a variety of purposes, including energy generation, irrigation purposes, the creation of habitats for the local flora and fauna or the construction of reservoirs for leisure activities. On the other hand, construction of the dam costs extremely high and the maintenance of the reservoir is very challenging. Accessed 7 July 2022. In turn, people may be able to enjoy a higher drinking water quality, which may contribute to an increase in the overall health of the local population. Operation and Maintenance Maintenance of the reservoirs behind the dams is hard for fulfilling the need for irrigation and drinking in the condition of drought due to various challenges like evaporation, leading to the increment in the problems of the environment. As a result of the industrial movements in America, there was a new kind of movement: the environmentalist movement.
Cutting down the trees, as well as other construction, can cause sediments to loosen up. Hence, hydroelectric power is a renewable source of energy and can be used without fear of exhaustion. The resource is renewable given that it can be used repeatedly downstream for power generation. When we examine the advantages and disadvantages of dams, it is essential to remember that both perspectives make legitimate claims to be doing what is best for the environment. In cases where migration is linked to essential activities like feeding and mating, such changed can be detrimental to the survival of the affected organisms. Actually, when compared to other energy options, a run-of river hydropower plant is one of the least land requiring options Therefore resettlement and land requirement problems are irrelevant for these types of projects. Flood Control as one of the Advantages of Dams Flood-control is a major application of dams.
A dam is a structure built across a stream, river or estuary to retain water. Constant Angle Arch Dam. Gates also allow the release of excess water from the reservoir side during floods. When vegetation gets engulfed in water, then the plants will eventually die. Frost action does not have any adverse effect on steel. Dams can block water progression to different states, provinces, and countries.
[Expert Answer] Advantages and disadvantages of dams.
Dams may be able to clean up the water Our technological progress is astounding and we are now even able to build dams that can clean up the water through different filters. Albeit this designing construction gets ordinarily connected with the creation of hydroelectric energy, we additionally use them for a wide range of purposes. Large-scale migration of people from the area where the dam is proposed to be built. Maintaining this new body of water comes with a set of its own challenges because evaporation can happen during dry times and result in an increase in environmental problems. The building of large dams can cause serious geological damage.
What my high school teacher failed to mention was that dams affect the ecosystem. During construction, these opportunities would include planning, building, supervision, and regulation. Reservoirs provide water for basic human needs in areas near to as well as those lying far off from the dam. Deforestation In many cases, the construction of large dams also implies significant deforestation. The purpose of construction is to hold back water and retain it for future uses.
Very much used for temporary works. Flash flood also can be overcome with storage ponds of flood attenuation. The different dam types Dam types based on the structure Gravity dams Gravity dam as the name suggests uses gravity to resist the horizontal pressure of water. Although modern planning and design of dams is good, in the past old dams have been known to be breached the dam gives under the weight of water in the lake. In this point of view, large hydro-power projects are not solely adequate as a complete solution in the short term.