Is it true that chemical separation systems or simple pH adjustment is often all that is needed to treat and dispose of wastewater?

The assertion regarding the adequacy of chemical separation systems or simple pH adjustment as a treatment method for wastewater is generally an oversimplification. While chemical treatment and pH adjustment can play significant roles in certain wastewater treatment processes, they may not be sufficient on their own for comprehensive treatment of all wastewater types.

Chemical separation systems can effectively remove specific contaminants, such as metals or pollutants that can precipitate out of solution when the pH is adjusted. In scenarios where the wastewater has a relatively low level of toxicity and contamination, these methods can be effective and potentially more economical.

However, in many cases, wastewater is heterogeneous and can contain a wide range of pollutants that require more advanced treatment processes beyond just chemical separation or pH adjustment. Biological processes, filtration, aeration, and other treatment methods are often necessary to comply with environmental regulations and to ensure that the effluent is safe for discharge or reuse.

The purpose of wastewater treatment is to protect public health and the environment by ensuring that pollutants are adequately removed, which often requires a combination of methods rather than relying solely on chemical treatment or pH adjustment.