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HWAHAK KONGHAK,
Vol.39, No.1, 116-122, 2001
Vol.39, No.1, 116-122, 2001
포말분리기를 이용한 해수로부터 양식 폐기물 제거 ; III. 공탑공기속도 영향
The Removal of Aquacultural Wastes by Foam Separator from Sea Water : III. The Effect of Superficial Air Velocity
공기부상식 포말분리기를 제작하여 해수 속의 단백질, 부유 고형물, 화학적 산소 요구량, 탁도, 암모니아성 질소와 같은 양식 폐기물의 연속 제거운전을 수행하여 공탑공기속도의 변화에 따른 양식 폐기물의 제거 특성을 검토하였으며 포말분리기의 용존산소 공급 능력을 검토하였다. 공탑공기속도의 증가에 따라 단백질의 제거속도와 제거율은 증가하였으나 농축비는 감소하였다. 총 부유 고형물, 탁도, 화학적 산소 요구량의 제거 속도와 제거율의 변화는 단백질과 유사하였으며 암모니아성 질소는 stripping 효과에 의해 제거되었다. 본 실험에 사용한 포말분리기는 96% 이상의 높은 용존산소 포화율을 나타내었다.
Experimental investigations on the effect of the superficial air velocity(SAV) on the removal of aquacultural waste, such as protein, total suspended solids(TSS), chemical oxygen demand(COD), turbidity and total ammonia nitrogen(TAN) from sea water were carried out by using a foam separator. The foam separator as an aerator was also evaluated for increasing dissolved oxygen concentration. The increase in SAV, increased the removal rate and removal efficiency of protein, but, decreased protein enrichment ratio. The changes of removal rates and efficiencies of TSS, COD and turbidity were similar to proteins. TAN was removed by stripping. Dissolved oxygen(DO) saturation of the effluent from the foam separator was higher than 96.6%.
Keywords:
Foam Separation; Superficial Air Velocity; Aquacultural Waste; Protein; TSS; COD; Turbidity; TAN; DO
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