Supercritical Water Oxidation: Difference between revisions
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=Basics= | =Basics= | ||
*A Technology where [[Supercritical]] Conditions are used in a Water Rich Mixture to Oxidize (Often in a manner to [[Incineration]] ) It's Components | *A Technology where [[Supercritical]] Conditions are used in a Water Rich Mixture to Oxidize (Often in a manner to [[Incineration]] ) It's Components | ||
*It is mainly used for [[Wastewater Treatment]] , but also has applications in [[Thermal Hydrocarbon Cracking]] | *It is mainly used for [[Wastewater Treatment]] , but also has applications in [[Thermal Hydrocarbon Cracking]] and [[Hazardous Waste Disposal]] | ||
*When applied to the disposal of hazardous waste it has a high [[Destruction and Removal Efficiency]] | |||
*Supercritical Water is a Non-Polar Solvent, so most minerals precipitate as salts | *Supercritical Water is a Non-Polar Solvent, so most minerals precipitate as salts | ||
**This is actually one of the main issues with the technology, in Radially Heated / Non-Cooled + Laminar Flow Reactors, the sides get coated in precipitate, reducing heat transfer | **This is actually one of the main issues with the technology, in Radially Heated / Non-Cooled + Laminar Flow Reactors, the sides get coated in precipitate, reducing heat transfer | ||
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*[https://www.youtube.com/watch?v=EIxMqf3QQ7c A Video by the YouTube Channel " [[NASA Technology Transfer Program]] " Titled "NASA's Supercritical Water Oxidation Reactor Webinar" ] | *[https://www.youtube.com/watch?v=EIxMqf3QQ7c A Video by the YouTube Channel " [[NASA Technology Transfer Program]] " Titled "NASA's Supercritical Water Oxidation Reactor Webinar" ] | ||
*[https://www.researchgate.net/publication/310271468_SIMULATION_OF_SCWO_PROCESS_IN_TRANSITORY_STATE A 2009 Paper Titled "SIMULATION OF SCWO PROCESS IN TRANSITORY STATE" ] | *[https://www.researchgate.net/publication/310271468_SIMULATION_OF_SCWO_PROCESS_IN_TRANSITORY_STATE A 2009 Paper Titled "SIMULATION OF SCWO PROCESS IN TRANSITORY STATE" ] | ||
** "In a conventional SCWO waste treatment system, dilute aqueous organic waste is combined with oxidizer at elevated pressure and temperature in a reactor for residence times on the order of 10 to 15 seconds. For most wastes, these conditions are sufficient to achieve ≥99,99% Destruction and Removal Efficiencies (DRE)." | |||
[[Category: Waste Water Treatment]] | [[Category: Waste Water Treatment]] | ||
Revision as of 22:13, 8 January 2022
Basics
- A Technology where Supercritical Conditions are used in a Water Rich Mixture to Oxidize (Often in a manner to Incineration ) It's Components
- It is mainly used for Wastewater Treatment , but also has applications in Thermal Hydrocarbon Cracking and Hazardous Waste Disposal
- When applied to the disposal of hazardous waste it has a high Destruction and Removal Efficiency
- Supercritical Water is a Non-Polar Solvent, so most minerals precipitate as salts
- This is actually one of the main issues with the technology, in Radially Heated / Non-Cooled + Laminar Flow Reactors, the sides get coated in precipitate, reducing heat transfer
- Also if not made with something very corrosion resistant such as Inconel etc the reactor can corrode and explode
- Also because of this oxygen and hydrocarbons diffuse very well
- This is actually one of the main issues with the technology, in Radially Heated / Non-Cooled + Laminar Flow Reactors, the sides get coated in precipitate, reducing heat transfer
Internal Links
- Hydrothermal Flame (This is a flame in supercritical water of a fuel-oxidizer mix, it is common in SCWO, but not necessarily needed (Homogenous Reaction) (citation needed on that) )
- Hydrothermal Flame Drilling
External Links
- The Wikipedia Page on Supercritical Water Oxidation
- The Enviro Wiki Page on Supercritical Water Oxidation
- A Video by the YouTube Channel " NASA Technology Transfer Program " Titled "NASA's Supercritical Water Oxidation Reactor Webinar"
- A 2009 Paper Titled "SIMULATION OF SCWO PROCESS IN TRANSITORY STATE"
- "In a conventional SCWO waste treatment system, dilute aqueous organic waste is combined with oxidizer at elevated pressure and temperature in a reactor for residence times on the order of 10 to 15 seconds. For most wastes, these conditions are sufficient to achieve ≥99,99% Destruction and Removal Efficiencies (DRE)."