| 摘要 |
<p>A method of controlling a denitrification process is disclosed, which comprises the steps of: monitoring the nitrate concentration of waste water entering a containment area, the containment area containing a carbon source such as woodchips, sawdust, activated carbon, or other vegetable based materials, monitoring the nitrate concentration of waste water exiting the containment area, monitoring the temperature within the containment area, and adjusting the flow rate of waste water entering the containment area based on the nitrate concentration of waste water entering and exiting the containment area and the temperature within the containment area so as to achieve a required nitrate removal efficiency. Also disclosed is a denitrification system comprising: a containment area with an impermeable boundary on at least the bottom and sides of the containment area, the containment area at least partially filled with a carbon source, the containment area arranged to remove nitrates from waste water containing nitrates, an inflow pipe to allow waste water containing nitrates to flow into the containment area, an outflow pipe from the containment area, the inflow pipe and outflow pipe arranged to provide gravity drainage to the containment area.</p> |
