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Journal of Korean Society of Water and Wastewater (상하수도학회지)
- Volume 23 Issue 6
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- Pages.735-741
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- 2009
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- 1225-7672(pISSN)
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- 2287-822X(eISSN)
Evaluation of the Non-point Source Treatment Facility using the porous lightweight aggregate and the recycled aggregate
다공성 경량골재 및 순환골재를 이용한 비점오염원 저감시설의 처리효율 평가
- Received : 2009.10.15
- Accepted : 2009.10.27
- Published : 2009.12.15
Abstract
This study intends to evaluate the efficiency of non-point source reduction technique by using the porous lightweight and recycled aggregate which microorganism is seeded. In case of infiltration velocity 30~70 mm/hr in high concentration of influent, it is indicated that SS was 40~94%, COD 44~91%, BOD 4~91%, TN 1.2~66%, TP 7~70% of removal efficiency. Removal efficiency is good in infiltration velocity 30 > 50 > 70㎜/hr order. Therefore, the non-point source treatment facility filled with lightweight and recycled aggregate using microbial seeding shows higher removal efficiency than a conventional sand and gravel. We confirm that the function and efficiency are improved significantly and applied to treat non-point sources.
Keywords