What element is essential for improving the quality of treated effluent?

Effective contaminant removal is crucial for improving the quality of treated effluent because it directly addresses the primary goal of sewage treatment: to reduce harmful substances and pathogens in wastewater before it is discharged into the environment or reused. This process involves various treatment stages, including physical, chemical, and biological methods, aimed at eliminating pollutants such as nutrients, organic matter, and harmful microorganisms.

By ensuring that contaminants are effectively removed from the effluent, facilities can protect public health, safeguard aquatic ecosystems, and comply with environmental regulations. This highlights the importance of employing appropriate treatment methods and technologies that focus specifically on the removal efficiency of pollutants, which ultimately determines the suitability of treated effluent for its intended use, whether it be for discharge or reuse.