What is the name of the treatment method that maintains certain pH levels for at least 2 hours to allow application directly to land?

The treatment method that maintains certain pH levels for at least 2 hours to allow for direct application to land is thermal treatment. This process is crucial because adjusting and stabilizing pH levels helps to eliminate pathogens and reduce the potential for harmful contaminants present in wastewater. By ensuring the pH levels are maintained within a specific range for a set period, it also ensures that the treated wastewater is safe for land application, which is often necessary for agricultural use or soil enhancement.

In contrast, incineration involves burning waste at high temperatures to reduce it to ash, which is not applicable for land application. Centrifuge equipment is primarily used for solid-liquid separation, and while it helps in clarifying water, it does not involve pH stabilization for land treatment. Flotation thickening is a process that separates solids from liquids using air bubbles but likewise does not pertain to maintaining pH levels for direct land application.