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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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This study investigated the removal performance of a foam fractionator under seawater conditions. The foam fractionator was tested using a 3×3×3 factorial design for operating conditions by combining different solids concentrations (SS; 1, 5, and 10 mg·L<SUP>-1</SUP>), surface air velocities (SAV; 1.1, 1.5, and 2.1 cm·sec<SUP>-1</SUP>), and hydraulic residence times (HRT; 1, 3, and 6 min) at 16°C. Performance parameters such as daily solids removal rate and efficiency were measured, and a multi-regression model equation was developed accordingly. The daily solids removal rate and removal efficiency varied with the experimental conditions and ranged from 0.14-2.33 g-solids·m<SUP>-3</SUP>-air·day<SUP>-1</SUP> and 8.9-96.7%, respectively. Overall, the daily solids removal rate increased with increasing SS and SAV and decreasing HRT, whereas the removal efficiency increased with increasing SAV and HRT and decreasing SS. The daily solids removal rate (g-solids·m<SUP>-3</SUP>-air·day<SUP>-1</SUP>) of the foam fractionator for SAV (cm·sec<SUP>-1</SUP>), SS (mg·L<SUP>-1</SUP>) and HRT (min) were described by the following multi-regression model: Daily solids removal rate [f(z)]=-0.118+0.422SAV+0.094HRT+0.141SS(r²=0.873).
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