Question

Write a paragraph on waste water treatment plant.

Answer 1

Answer:

Water, although a finite resource, is grossly undervalued. This attitude towards water has resulted in water wastage, misallocation of water, and a lack of investments in developing water infrastructure and technologies that facilitate efficient water usage. Climate change propelled by the rapidly growing population and industrialization has brought ashore the imminent water crisis. Many urban and semi-urban cities across the world are grappling with water scarcity which has become even more variable and extreme. As we move towards economic growth, we not only pollute our available water at an alarming rate but also fail to treat it.

Already, less than 30% of the water released back in the rivers is somewhat treated – over 70% of wastewater flows completely untreated. Currently, around 18% of the river stretches in India are highly polluted, while 14% are mildly polluted, rendering about a third of the water in these rivers unfit for humans. Wastewater infrastructure is also under pressure owing to lack of future readiness and lack of modernization leading to inefficiencies.

Explanation:

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Answer 2

wastewater treatment, also called sewage treatment, the removal of impurities from wastewater, or sewage, before it reaches aquifers or natural bodies of water such as rivers, lakes, estuaries, and oceans. Since pure water is not found in nature (i.e., outside chemical laboratories), any distinction between clean water and polluted water depends on the type and concentration of impurities found in the water as well as on its intended use. In broad terms, water is said to be polluted when it contains enough impurities to make it unfit for a particular use, such as drinking, swimming, or fishing. Although water quality is affected by natural conditions, the word pollution usually implies human activity as the source of contamination. Water pollution, therefore, is caused primarily by the drainage of contaminated wastewater into surface water or groundwater, and wastewater treatment is a major element of water pollution control.

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