| Title |
Advanced Treatment of Effluents from the Night Soil Treatment by Ultrafiltration and Activated Carbon Adsorption |
| Authors |
김승건(Seung Gun Kim), 이호원(Ho Won Lee), 허목(Mock Huh) |
| Abstract |
Hybrid process coupling ultrafiltration and adsorption was demonstrated to treat effluents from the night soil treatment to high quality product. The product water treated by hybrid process could be within the reinforced basis of effluent qualities. Removal efficiencies for COD, SS, T-N, T-P, TOC, and turbidity were 13.3%, 100%, 18.5%, 18.0%, 21.3%, and 80.7% by ultrafiltration, and 37.3%, 100%, 35.8%, 37.0%, 81.3%, and 84.9% by hybrid process. The performance for removal efficiencies was not nearly affected by run time. The permeate flux at the transmembrane pressure difference of 2.0Kg_f/㎠ was 49.8L/㎡/hr at initial operation, and decreased to 26.2L/㎡/hr after 7days, but it was restored to 99% of initial flux by chemical cleaning of organic foulants. It is expected that hybrid process coupling ultrafiltration and adsorption can be applied to treat effluents from the night soil treatment. |