Application of Radial Type Multifiber Media Filtration Process for Combined Sewer Overflow Treatment

Fiber media filtration for combined sewer overflow (CSO) treatment was evaluated in this work. Pilot-scale experiments of CSO involve seven layers that form radial-type fiber filters. The filter characterized using analysis techniques and exhibited extremely high hydrophobicity negative charge. results obtained a plant at Tancheon Seoul revealed potential suspended solid, total organic carbon, biochemical oxygen demand removal with efficiencies 89.6%, 56%, 42%, respectively. are consistent the sieving effects electrostatic repulsion between pollutants. Head loss induced by pollutants 10.5 cm after 20 h operation. To mitigate head on filter, sodium hypochlorite (NaClO) used as chemical backwashing agent. An NaClO concentration 2000 mg/L soaking time 24 yielded an optimal recovery 96.2% initial virgin without degradation. result present study will provide practical insight act technical guide engineers.