With both the population of India and its industrial landscape increasing at a phenomenal speed, our environment has already taken a heavy toll .One of the pollutants of environment is wastewater which is actually contaminated water. Two main sources of water contamination are sewerage (domestic/municipal waste) and effluents (i.e.industrial/commercial wastes).
To add to these woes, the freshwater sources such as rivers, wells, groundwater are also depleting. Waste water is not only unfit for consumption, but it also mixes with other water sources and contaminates them as well. Wastewater runs downstream & joins other water sources and the process spreads further. Wastewater also seeps into the ground and affects underground water sources. As a result, almost every water source today is heavily polluted- starting from rivers and wells to sea and coastal areas.
To some extent, nature can deal with few soft contaminants, primarily bio contaminants such as human and animal waste. However, the massive amount of wastewater contributed by industries & human beings in the form of non- biological waste and hard bio contaminants cannot be managed by nature alone.
Thus, management of wastewater has become imperative today.