| 摘要 |
<p>PURPOSE:To convert volatile organic compounds into a harmless, easily decomposable secondary by-product by a process in which the volatile organic compounds extracted from soil or water are oxidized by being irradiated with ultraviolet rays in the presence of oxygen and brought into contact with water. CONSTITUTION:Waste water 13 is fed to an extractor 2, and the volatile organic compounds in the waste water 13 are evaporated by diffusing air. Gas containing the extracted volatile organic compounds is introduced to an irradiation tank 1 and oxidized with ultraviolet rays to produce a primary by-product. Gas from the irradiation tank 1 is diffused from a diffuser 7 installed in a raw water tank 6 in which water is kept neutral of its pH by a pH regulator 8 and agitated with an agitator to obtain an easy decomposable secondary by- product. In this way, the volatile organic compounds contained in soil or water can be treated efficiently and surely into a harmless substance.</p> |
