| 摘要 |
<p>A compact method for the treatment of sewerage as disclosed. The method comprises passing the sewerage first through an ozone reactor assembly (2) and then through a UV reactor assembly (3). The ozone reactor assembly (2) comprises a tubular reactor (6) through which sewerage to be treated is passed counter-current to ozone containing water. The water is then discharged from the tubular reactor (6) into a tank reactor (5) where it circulates for a residence time of 30 minutes to 1 hour. This enables ozone in the water to react with and decompose organic compounds in the sewerage. During this time the water is recirculated through the tubular reactor one or more times. Thereafter the water is passed into the UV reactor assembly (3) which also comprises a tubular reactor (31) through which water is passed subjected to UV radiation, and a tank reactor (30). A feature of the method is that the water is mixed with ozone gas when it is passed through the tubular reactor (31) and subjected to UV radiation. After passing through the tubular reactor (31) the water is discharged into the tank reactor (30) where it circulates for a residence time of 30 minutes to 1 hour to further react and degrade of organic compounds within the water. During this time the water is recirculated through the tubular reactor one or more times.</p> |
