What is the standard range of pH for wastewater effluent after treatment?

The standard range of pH for treated wastewater effluent is 6.5 to 8.5. This pH range is important because it indicates that the wastewater has been adequately treated to neutralize harmful acids and bases, making it safer for discharge into the environment or for potential reuse. A pH level within this range ensures that the water is not too acidic or too alkaline, which can negatively impact aquatic life and ecosystems.

In addition, maintaining a pH in this range helps to meet regulatory compliance for wastewater discharge, as many environmental agencies set limits to protect receiving waters from alteration in pH, which can affect the solubility and toxicity of various pollutants.

Overall, a pH range of 6.5 to 8.5 reflects that the treatment processes have been effective in balancing the water’s chemical composition, making it suitable for discharge.