Wet Air Oxidation (WAO) is a process of wastewater treatment that uses an oxidation process to break down the organic compounds present in the wastewater. The process is carried out in a reactor that is designed to operate at high temperatures and pressure. The wastewater is heated to a temperature of around 250-300 °C and maintained at this temperature for a certain period of time.
The high temperature and pressure conditions in the reactor cause the organic compounds to break down into simpler and less harmful compounds. A WAO STP (Sewage Treatment Plant) is a Packaged Treatment Plant that uses the WAO process to treat wastewater. The plant consists of a reactor, which is the heart of the system, and a number of ancillary equipment and instruments that are required to operate and control the process.
The reactor is designed to handle a certain volume of wastewater per day and is sized according to the requirements of the specific application. The WAO STP has a number of advantages over other wastewater treatment processes. It can handle a wide range of wastewater compositions and is capable of achieving high levels of treatment efficiency.
The process is also effective at removing toxic and hazardous organic compounds, which makes it a popular choice for treating industrial wastewater. Additionally, the WAO process produces relatively little sludge, which reduces the amount of waste that needs to be disposed of.