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DOI : , Vol.21, No.1, 3 ~ 12, 2013
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| Title |
| Determination of the Operating Condition of HCF System for Suspended Solid Removal of Submarine Tunnel Wastewater Treatment |
| 강용태YongTaeKang , 김남경NamKyoungKim , 정세욱SeUkJeong , 이재현JaeHyunLee |
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| Abstract |
| This study was character of tunnel waste water with high turbidity using the Lab-scale HCF system, which consists of grit chamber, HCF I and HCF II, and determines the optimum operating condition by determining the water quality of effluent of HCF system depending on the changes of turbidity and filtration velocity. The raw water was used for synthetic wastewater by diluting sludge and effluent from tunnel waste water. The experiments were changed variety to turbidity of 1,000, 2,000, 4,000, 6,000, 8,000, 10,000 NTU and surface loading rates of 43.2, 21.6, 10.8, 7.2, 5.4, 4.32 m3/m2·day. And changed variety to filtration velocity in HCF I of 100, 300, 500 m/day and HCF II of 50, 150, 250 m/day. The optimum surface loading rates are determined to be 10.8 m3/m2`day for 1,000 and 2,000 NTU, 7.2 m3/m2day for 4,000 NTU, 5.4 m3/m2day for 6,000, 8,000 and 10,000 NTU. In addition, by comparing filtration velocity of HCF I 100 m/-day and 300 m/day indicated to have a similar tendency, while 500 m/day did not indicate to have good treatment efficiency. Therefore, 300 m/day was optimum filtration velocity in the consideration of treatment capacity per day. |
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| Key Words |
| Tunnel wastewater, HCF system, Surfoce roading rate |
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