황토를 이용한 인 제거 성능 평가 = Evaluation of Phosphorus Removal Capacity by Loess

다국어 초록 (Multilingual Abstract)

Several experiments were performed to find out the evaluation of phosphorous remove capacity by loess.
Phosphorus removal efficiency was related to a dosage of loess as 34.7% on 10g/L, 60.9% on 20g/L, 89.6% on 40g/L, 96.6% on 60g/L, during the 2hrs contacting time, respectively. Phosphorus removal was activated in range of pH 3 to pH 9, for example to 82.6% on pH 5, but the activity was dropped on out of range like to 58.8%, 49.4% on pH 2, 10. Additionally, phosphorus removal efficiency was on intimate term with temperature fluctuation such as 60.0%, 63.2%, 67.2%, 72.0% on 2℃, 10℃, 20℃, 30℃, respectively.
After the sedimentation of loess on different time, 10, 30, 60 minutes in water, each accomplishment were measured to be 80.0%, 90.9%, 93.9%. Owing to the rapid sedimentation of loess, the phenomenon that it was raised the SS concentration by loess itself in water treatment process will be minimized. During the several experiments on column, the break point that the column is contaminated to 50%, was reached to about 28.5 hrs. Therefore, we concluded that the capability of phosphorous adsorption by loess will be sustainable during 28 hrs.

참고문헌 (Reference)

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