Enhancing Water Discharge Standards

Example of process combination

COD: Ozone Catalytic Oxidation

Total Nitrogen: Sulfur Autotrophic Denitrification

Technological advantages

Ozone Catalytic Oxidation: This process uses solid catalysts in conjunction with ozone oxidation to lower the reaction activation energy or alter the reaction pathway, achieving deep oxidation and maximizing the removal of organic pollutants. Ozone catalytic oxidation improves the utilization and oxidizing capacity of ozone, overcoming the inefficiency of using ozone alone, and is increasingly applied in advanced wastewater treatment.

Sulfur Autotrophic Denitrification:  This method uses reduced sulfur compounds as electron donors, which eliminates residual organic matter and does not require the addition of organic carbon sources. It reduces operating costs, as autotrophic bacteria have longer growth cycles and lower growth rates, resulting in lower sludge production and reduced risk of biological pollution in the treated water.