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WAO is a liquid phase reaction using dissolved oxygen in water to oxidize wastewater contaminants. The dissolved oxygen is typically supplied using pressurized air, but pure oxygen can also be used. The oxidation reaction generally occurs at moderate temperatures of 150°-320 °C and at pressures from 10 to 220 bar.
Wet air oxidation refers to a large-scale process used to treat wastewater by oxidizing it with air at temperatures between 150°C and 300°C and pressures between 1.5 MPa and 10 MPa, resulting in a reduction of the chemical oxygen demand (COD) to acceptable levels.
14 Οκτ 2015 · Wet air oxidation (WAO) is a key technology in the disposal of industrial and agricultural process wastewaters. It is often used coupled with activated sludge treatment at a wastewater treatment plant (WWTP) as preliminary conversion of toxic and/or non-biodegradable components.
15 Οκτ 1999 · Wet air oxidation (WAO) is a liquid-phase reaction between organic material in water and oxygen. The WAO process is used around the world to treat industrial wastewaters and sludges, at moderate temperatures (180–315°C), and at pressures from 2 to 15 MPa.
1 Μαΐ 1999 · Wet air oxidation is a destructive wastewater technology based on the oxidation of pollutants at high temperature and high pressure in the liquid phase. In the system molecular oxygen dissolved in the wastewater reacts with the organic and inorganic pollutants.
Wet Air Oxidation is a process for oxidizing materials in a dilute aqueous matrix. The usual temperature range, 150° to 320°C, requires high pressure to maintain a liquid phase. It has been applied industrially to de-toxify dilute streams of organic (and oxidizable inorganic) materials in water.
Wet air oxidation (WAO) is a technology used to treat the waste streams which are too dilute to incinerate and too concentrated for biological treatment. The WAO process was originally developed by Zimmermann and its first industrial applications appeared in the late 1950s.
