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Essay On Waste Water

740 Words3 Pages

Wastewater: A Resource and a Problem?

With increasing urbanization and population in Kathmandu valley consisting of the three historic cities: Kathmandu, Bhaktapur and Lalitpur, the gap between supply and demand for water is expanding and is reaching worrying levels that in some parts of the periphery (peri-urban) areas is creating a threat to the local ecosystems, groundwater aquifers and human health.
Globally, scientists are exploring ways to conserve water and reuse urban wastewater for various purposes like, irrigation and other ecosystem services. Generally, wastewater consist of liquid wastes produced by industrial and commercial sources, and households.
Currently, Kathmandu valley is experiencing water scarcity due to depleting groundwater and surface water resources caused by over-exploitation of various industries such as, Brick Kilns, Garment industries, water tankers and other commercial industries. Climate change is another driver that is influencing the water balance in the valley as a result of reduced rainfall and shifting monsoon seasons. Nonetheless, the current rate of local water demand by these drivers is leading to …show more content…

When asking them about health risks, the farmers often grumble about the use of wastewater and its effects. As one farmer cites “farmers need to wash their hand and feet multiple times otherwise dreadful smell remains”. Skin irritation and allergies are also commonly reported due to the use of wastewater, however, farmers do not take the health risks seriously. Some farmers describe that the use of wastewater on crops during the summer season causes them to wither fast due to the high evapo-transpiration rates. Besides the problem of wastewater, another environmental concern is that the rivers and canals are also used as rubbish dumping grounds. Also, farmers reported not to have noticed any changes in soil quality with the use of

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