Gate to Gate
Identity ID
e113c11e-1f89-4add-9cca-d65ebc7db9ed
Process class
Associated ID
388f34c6-0904-4be9-817e-9ac1eeaba763
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Included activities ends
Description
Fenton technology, as an efficient advanced oxidation process (AOPs), plays a crucial role in the field of water treatment, especially for organic pollutants that are difficult to degrade by conventional biological treatment methods. This technology is based on a simple chemical principle: under acidic conditions (pH approximately 2--5), ferrous ions (Fe²+) interact with hydrogen peroxide (H2O2) to catalytically produce highly oxidizing hydroxyl radicals (·OH). These free radicals are highly reactive and capable of attacking and breaking down organic molecules in water, whether simple or complex, including pollutants that are typically difficult to remove through biological or chemical methods. The oxidation potential of hydroxyl radicals is as high as 2. 80 V, which makes Fenton technology excel in oxidative degradation of organic pollutants by mineralizing them into harmless carbon dioxide (CO2) and water (H2O), thereby significantly reducing the chemical oxygen demand (COD) in wastewater. Additionally, the iron hydroxide complexes generated during the Fenton process possess flocculation and adsorption capabilities, aiding in the removal of suspended solids and certain organic compounds from water. The applications of Fenton technology are extensive, including but not limited to difficult-to-treat wastewaters such as textile dyeing, pharmaceutical, petrochemical, and landfill leachate. It can be used as a pretreatment step to improve the biodegradability of wastewater, or as an advanced treatment step to further enhance the effluent quality.
Activity Description
Fenton technology is an advanced oxidation process primarily used for treating recalcitrant organic compounds in water. Its core principle involves a chain reaction between ferrous ions (Fe²⁺) and hydrogen peroxide (H₂O₂) under acidic conditions (pH 2–5), generating highly reactive hydroxyl radicals (·OH). These radicals can non-selectively oxidize and degrade organic pollutants in water, ultimately mineralizing them into inorganic substances such as CO₂ and H₂O.
Process Description
Wastewater treatment services typically include four main aspects: pretreatment, primary treatment, secondary treatment, and tertiary treatment, ensuring the stable operation of the wastewater treatment system and compliance of the effluent water quality with regulatory standards.
Time period
2021
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
This activity represents the treatment of wastewater using specific technologies in the WWT plant.