지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
In this study, the nutrient concentration changes along the hydrologic flow path of a free water surface flow constructed wetland (CW) treating agricultural stream runoff was investigated. Dry sampling was performed from April 2009 to November 2011 at five locations representing each treatment units of the CW. Grab water samples were analyzed for nitrogen forms such as total nitrogen (TN), total Kjeldahl nitrogen, nitrate, and ammonium; and phosphorus forms including total phosphorus (TP) and phosphate. Findings revealed that the physical properties such as temperature, dissolved oxygen and pH affected the TP retention in the CW. High nutrient reduction was observed after passing the first sedimentation zone indicating the importance of settling process in the retention of nutrients. However, it was until the 85% of the length of the CW where nutrient retention was greatest indicating the deposition of nutrients at the alternating shallow and deep marshes. TN and TP concentration seemed to increase at the final sedimentation zone (FSZ) suggesting a possible nutrient source in this segment of the CW. It was therefore recommended to reduce or possibly remove the FSZ in the CW for an optimum performance, smaller spatial allocation and lesser construction expenses for similar systems.
목차
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참고문헌 (27)
참고문헌 신청
/ / Water Management Information System (WAMIS)
Cameron, K. / 2003 / Pollutant removal from municipal sewage lagoon effluents with a free-surface wetland / Water Research 37 (12) : 2803 ~ 2812
Carpenter, S. R. / 1998 / Nonpoint pollution of surface waters with phosphorus and nitrogen / Ecological Applications 8 (3) : 559 ~ 568
Cho, J. Y. / 2003 / Seasonal runoff estimation of N and P in a paddy field of central Korea / Nutrient Cycling in Agroecosystems 65 (1) : 43 ~ 52
DeBusk, T. A. / 2001 / Wetlands for Water Treatment, Applied wetlands science and technology: Boca Raton, Forida / Lewis Publishers : 241 ~ 280
Cameron, K. / 2003 / Pollutant removal from municipal sewage lagoon effluents with a free-surface wetland / Water Research 37 (12) : 2803 ~ 2812
Carpenter, S. R. / 1998 / Nonpoint pollution of surface waters with phosphorus and nitrogen / Ecological Applications 8 (3) : 559 ~ 568
Cho, J. Y. / 2003 / Seasonal runoff estimation of N and P in a paddy field of central Korea / Nutrient Cycling in Agroecosystems 65 (1) : 43 ~ 52
DeBusk, T. A. / 2001 / Wetlands for Water Treatment, Applied wetlands science and technology: Boca Raton, Forida / Lewis Publishers : 241 ~ 280
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