Abstract
The efficiency and kinetics of the destruction of nitrogen-containing organic compounds in waste water by supercritical water oxidation at 673.2K-823.2K and 24MPa-30MPa were investigated. The removal efficiencies are lower than 10% below 673.2K, and higher than 90% above 823.2K. The increasing of the temperature, pressure or reaction time will result in the higher removal efficiency. Under the conditions of the experiments, the rate of removal of Kjeldahl's Nitrogen is first order, and independent of the concentration of oxygen. The effect of temperature on the rate constant can be expressed by Arrhenius equation. The rate constant depends on the pressure especially near the critical point of water.
| Original language | English |
|---|---|
| Pages (from-to) | 639-644 |
| Number of pages | 6 |
| Journal | Huagong Xuebao/CIESC Journal |
| Volume | 48 |
| Issue number | 5 |
| Publication status | Published - 1997 |
| Externally published | Yes |