Importance of Sewage Water Treatment Plants: Over the past few decades, sewage and research and technology have evolved. The population of the world is expanding fast, and people are looking for natural resources in clean water sources such fresh rivers, wells, and groundwater. Natural resources will eventually become scarcer. This has caused the emphasis to shift from preventing pollution to reducing its effects. Wastewater cannot now be disposed of in land or water bodies without suitable and efficient treatment procedures. India has the second-largest population in the world and the highest population density in its Gangetic plains as well as other parts of the country. It also boasts 4% of the total fresh water available on Earth. India must therefore work towards sustainable water use, water recovery, and water re-use in order to satisfy the basic need for water for its citizens. Maintenance of Sewage Water Treatment Plants: Utilising reliable and effect...