By nature, our environment has an incredible ability to self treat the small amounts of pollution and waste in the water. However, it cannot handle an overwhelming amount of waste.
In today's scenario, 80% of the world's wastewater is mostly untreated and released into the environment. Worldwide, 159 million people are directly drinking water from untreated natural surface water sources like streams, lakes, dams. Moreover, animals and birds use water to survive from natural water sources.
Rivers, oceans, dams, and lakes are filled with aquatic species that rely on clean water for survival. So here comes the importance of wastewater treatment for every living being in the ecosystem and the environment.