| 摘要 |
<p>The invention relates to a photocatalytic treatment system for reducing the nitrogen content in livestock waste comprising the following steps: ° separation of the gross solids from the sewage as is by filtration; ° temperature control of the separated sewage at a preset temperature; ° aeration with air flow; ° contact of the aerated sewage for a preset time with a photoactive phase composed of a modified semiconductor; ° exposure of the sewage to light radiation. The invention also relates to a photocatalytic treatment plant for reducing the nitrogen content in livestock waste comprising: ° a reactor (1 ) provided with light radiation generating means (2) and photocatalyst means composed of a modified semiconductor, suitable to contain for a preset time the sewage to be treated, containing nitrogen in organic form, previously separated from the gross solids by means of filtration; ° means (3, 4, 5) for the insufflation of air into the reactor; ° heat exchanger means (6) connected to heat generating means (7); ° discharge means (8, 9) of the nitrogen and of the gaseous compounds; ° feed (10) and discharge (11) means of the sewage to be treated.</p> |
