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
Nutrients in stormwater runoff have raised concerns regarding water quality degradation in the recent years. Low impact development (LID) technologies are types of nature-based solutions developed to address water quality problems and restore the predevelopment hydrology of a catchment area. Two LID facilities, infiltration trench (IT) and infiltration planter (IP), are known for their high removal rate of nutrients through sedimentation and vegetation. Long-term monitoring was conducted to assess the performance and cite the advantages and disadvantages of utilizing the facilities in nutrient removal. Since a strong ionic bond exists between phosphorus compounds and sediments, reduction of total phosphorus (TP) (more than 76%), in both facilities was associated to the removal of total suspended solids (TSS) (more than 84%). The efficiency of nitrogen in IP is 28% higher than IT. Effective nitrification occurred in IT and particulate forms of nitrogen were removed through sedimentation and media filters. Decrease in ammonium- nitrogen (NH4-N) and nitrite-nitrogen (NO2-N), and increase in nitrate-nitrogen (NO3-N) fraction forms indicated that effective nitrification and denitrification occurred in IP. Hydrologic factors such as rainfall depth and rainfall intensity affected nutrient treatment capabilities of urban stormwater LID facilities The greatest monitored rainfall intensity of 11 mm/hr for IT yielded to 34% and 55% removal efficiencies for TN and TP, respectively, whereas, low rainfall intensities below 5 mm resulted to 100 % removal efficiency. The greatest monitored rainfall intensity for IP was 27 mm/hr, which still resulted to high removal efficiencies of 98% and 97% for TN and TP, respectively. Water quality assessment showed that both facilities were effective in reducing the amount of nutrients; however, IP was found to be more efficient than IT due to its additional provisions for plant uptake and larger storage volume.
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참고문헌 (21)
참고문헌 신청
APHA / 1992 / Standard methods for the examination of water and wastewater
Akan, A. O. / 2002 / Modified rational method for sizing infiltration structures / Canadian Journal of Civil Engineering 29(4):539~542
Brown, R. A. / 2012 / Improving bioretention/biofiltration performance with restorative maintenance / Water Science and Technology 65(2):361~367
Chen, Y. / 2013 / Evaluation of the different filter media in vertical flow stormwater wetland / Desalination and Water Treatment 51(19-21):4097~4106
Chow, M. F. / 2015 / Relationship between sediment build-up characteristics and antecedent dry days on different urban road surfaces in Malaysia / Urban Water Journal 12(3):240~247
Akan, A. O. / 2002 / Modified rational method for sizing infiltration structures / Canadian Journal of Civil Engineering 29(4):539~542
Brown, R. A. / 2012 / Improving bioretention/biofiltration performance with restorative maintenance / Water Science and Technology 65(2):361~367
Chen, Y. / 2013 / Evaluation of the different filter media in vertical flow stormwater wetland / Desalination and Water Treatment 51(19-21):4097~4106
Chow, M. F. / 2015 / Relationship between sediment build-up characteristics and antecedent dry days on different urban road surfaces in Malaysia / Urban Water Journal 12(3):240~247
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