About the Technology
The core of TADOX lies in its utilization of Advanced Oxidation Processes (AOPs). AOPs are a set of chemical treatment procedures designed to remove organic (and sometimes inorganic) materials in wastewater by oxidation through reactions with hydroxyl radicals (•OH). These radicals are highly reactive and could break down complex and stable organic pollutants into simpler, non-toxic compounds.
TADOX combines multiple AOPs in a sequential and synergistic manner to maximize the degradation of pollutants. This multi-step approach not only ensures a high level of pollutant removal but also minimizes the formation of harmful by-products, such as chlorinated organic compounds, which are often produced in conventional wastewater treatment processes. The result is a treated effluent that is safe for discharge or reuse, depending on the application.
-
The key processes involved in TADOX include:
-
Ozonation: The first step in TADOX involves the injection of ozone (O₃) into the wastewater. Ozone is a powerful oxidizing agent that reacts with organic pollutants to form intermediate compounds. This process begins the breakdown of complex molecules, making them more susceptible to further oxidation.
-
UV Photolysis: Following ozonation, the wastewater is exposed to ultraviolet (UV) light. The UV radiation initiates photolysis, breaking down the chemical bonds of pollutants and generating hydroxyl radicals. These radicals are highly reactive and play a crucial role in the degradation of organic compounds, particularly those that are not easily oxidized by ozone alone.
-
Catalytic Oxidation: In the final stage, the wastewater passes through a catalytic oxidation unit. Here, a catalyst is employed to accelerate the generation of additional hydroxyl radicals. The catalyst enhances the oxidation process, ensuring the complete breakdown of remaining organic pollutants into harmless by-products such as water (H₂O), carbon dioxide (CO₂), and inorganic salts.