| 摘要 |
PROBLEM TO BE SOLVED: To provide an activated carbon adsorption system where the whole of an adsorption layer in an adsorption tank is sufficiently stirred and mixed with washing water so that SS (suspended solid) is removed and can be exhausted to the outside, and washing upon the extraction of waste carbon and the use of new carbon can be easily performed. SOLUTION: In the activated carbon adsorption system 1, raw water is fed from the upper part to an adsorption tank 2. Treated water passed through an activated carbon adsorption layer 3, from which chemical substance has been adsorbed away, is discharged from a catchment box 6 in the bottom part to the outside. The upper part in the adsorption tank 2 is divided into a raw water feed part A and a washing water exhaust part B with a partition plate 7 provided with small holes 8 and dipped into the raw water 4. The upper part of the raw water feed part A is provided with a clear water feed tube 9, and the upper part thereof is provided with an activated carbon charge port 10, an activated carbon water addition apparatus 11 or the like. On the side of the washing water exhaust part B, an air lift pump 12, in which an adsorption material suction port 12a is buried at the lower part in the adsorption layer 3 and an adsorption material discharge port 12b is opened to the side of the feed part A at a position on the raw water in the partition plate, and a waste carbon extracting tube 15 connected to the position near the water face of the pump so as to be freely openable/closable are provided. The upper part of the exhaust part B is provided with a washing water drain tube 16 and a waste water trough 17. COPYRIGHT: (C)2007,JPO&INPIT
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