수질오염총량 단위유역의 유량조건별 수체 손상 평가를 위한 부하지속곡선 적용성 연구

황하선 부산연구원 2011 낙동강연구 Vol.- No.20

지역현안 수질개선을 위한 지류 중심 수질오염총량제

황하선 한국물환경학회(구 한국수질보전학회) 2015 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2015 No.-

전산정보를 활용한 오염총량관리 배출경로별 인구 산정방법 개발

황하선,박경옥,이한필,정제호,신동석,강한 한국환경기술학회 2019 한국환경기술학회지 Vol.20 No.2

The “Population by discharge way” used for TPLM(Total Pollution Load Management) is estimating the population using basic data, because it is difficult to conduct an actual survey due to technical and financial problems. The current population estimation method is used in the Dong(ri) range, and it is difficult to confirm whether it will be reflected in actual individual household sewage treatment, and there is a problem that the basic data is uncertain. Until now, with the development of computer information technology, the Ministry of Public Administration and Local Government has provided population information in units of lot number that are more accurate than before, and research on new population estimation methods using this is needed. In this study, the area where the distribution of population according to treatment type was diverse was selected as the target site. Using population data of various basic data(resident registration computer information, sewage treatment area map, etc.), the population by discharge way was estimated more precisely and compared with the existing method. According to the public sewer population estimates, it is found that the new method (91.2%) is higher than the conventional method (85.7%) and more similar to the sewerage statistics treatment rate (91.3%). The personal sewage population estimation results show that the new method (7,897) is less than the conventional method (19,807) and more similar to the personal sewage population (9,769) in sewer statistics. Comprehensively, the use of address information population data shows similar values to official sewer statistical data, which is a relatively reliable result. However, the quality of the data is important because the accuracy of the data varies depending on the degree of matching between the address information data and the basic data used. Therefore, it is necessary to establish a system that can manage basic data effectively.

관개수원에 따른 논에서의 영양물질 배출 특성

황하선,공동수,신동석,전지홍 한국물환경학회 2004 한국물환경학회지 Vol.20 No.6

Field experimental study was performed to examine characteristics of nutrient export from paddy rice fields with irrigation practices. Experimental fields with surface-water and ground-water irrigation were monitored and analyzed during rice culture period. The water balance showed that outflow generally balanced the inflow showing that about half (58∼68%) of total outflow was lost by surface drainage. Water and nutrient export are more in surface-water irrigation paddy than in ground-water irrigation paddy. The reasons might be more irrigation water available and easy to use in surface-water irrigation. If irrigation water reduced, it could result in reduction of nutrient export in paddy rice fields, which can save water and protect water quality. However, deviation from conventional standard practices might affect the rice yield and further investigations are necessary.

저강우연도 지하수 관개 필지논에서 수도재배기간 동안의 물질수지

황하선,윤춘경,전지홍,김병희 한국농공학회 2002 한국농공학회논문집 Vol.44 No.4

Field experiment was performed to investigate water and nutrient mass balances in paddy field with groundwater irrigation from May to October, 2001. The total water inflow was about 1,183mm in which rainfall, overflow from upstream paddy, and groundwater irrigation accounted for 43, 30, and 27%, respectively. Notice that the precipitation of the study period was less than the average annual precipitation. The total drainage was almost balanced with the inflow and more than half of it was occurred by surface drainage. From the nutrient mass balance analysis, the T-P output (17.56kg/ha) was estimated slightly lower than the input (20.90kg/ha) and the T-N output (130.41kg/ha) was slightly greater than the input (129.24kg/ha). However, the difference was within the expectation and the nutrient mass was thought to be balanced considering uncertainties in field experiment and other activities not included in the study such as algae and soil microorganisms. The surface discharge of nutrient, which was about 10% of total nutrient output, was mainly affected by fertilization and rainfall runoff. Therefore, prudent surface drainage plan might be necessary particularly for the fertilization period to prevent degradation of receiving water quality. The study was performed under abnormally low rainfall compared to the average annual rainfall record, and further monitoring in diverse rainfalls and irrigation methods is recommended to estimate nutrient behavior in the paddy field more reasonably. 본 연구는 경기도 여주군 가남면 오산리에 위치한 지하수관개 논을 대상으로 하여 영농기간인 2001년 5월부터 10월까지 필지단위 포장에서의 물수지와 영양물질 수지를 분석하였으며 그 연구결과를 요약하면 다음과 같다.1. 물수지에서 논으로 총유입량은 1,183 mm이었으며 이 중 강우에 의한 공급이 512 mm(43%), 윗논에서 유입은 358 mm(30%), 지하수에 의한 관개량이 312 mm(27%)를 차지하여 지하수관개 논의 경우 강우에 의한 유입수량이 가장 많은 것으로 나타났다. 또한 총손실수량은 1,161 mm이었으며 이 중 물꼬에서 배출된 배출수량은 595 mm(51%), 증발산량에 의한 손실수량은 488 mm(42%), 침투에 의한 손실량은 78 mm(7%)로서 물꼬를 통한 배출수량과 증발산량이 대부분을 차지하였다. 물꼬를 통한 배출수량은 낙수기에 대부분 이루어졌으며, 증발산량은 벼의 성장과 거의 비례하여 증가하는 경향을 나타내었다.2. 영양물질수지에서 T-P의 경우는 총유입량은 20.90 kg/ha이었는데 이 중 비료에 의한 공급량이 19.64 kg/ha(94%), 윗논에서 유입량 0.97 kg/ha (5%), 지하수관개에 의한 유입량 0.28 kg/ha(1%) 순이었고 강우에 의한 유입량 0.01 kg/ha로서 매우 적었으며 대부분이 비료에 의해 공급되었다. T-P의 총손실량은 17.56 kg/ha이었으며 이 중 벼 흡수량은 16.34 kg/ha(93%)이었고 물꼬로부터의 배출량은 1.22 kg/ha(7%)로써 벼 흡수량이 대부분을 차지하였다. 3. 영양물질수지에서 T-N의 경우는 총유입량이 129.24 kg/ha이었으며 이 중 비료에 의한 공급량은 110.00 kg/ha(85%), 윗논에서 유입량은 8.02 kg/ha(6%), 강우에 의한 유입량 7.97 kg/ha (6%), 그리고 지하수 관개에 의한 유입량 3.25 kg/ha(3%)로서 비료에 의한 공급량이 가장 큰 비중을 차지하였다. 또한 T-N의 총손실량은 130.41 kg/ha로써 이 중에 벼 흡수량이 115.95 kg/ha (89%), 물꼬를 통한 배출량이 12.73 kg/ha(10%), 그리고 침투에 의한 손실량이 1.73 kg/ha(1%)로써 벼 흡수량이 가장 큰 비중을 차지하였다. 4. 전체적으로 지하수관개 필지논에서 물수지와 영양물질수지를 비교해보면 약간의 차이는 있었으나 전반적으로 균형을 이루었던 것으로 조사되었다. 영양물질수지에서 발생한 약간의 차이는 본 연구에서 조사하지 않았던 토양미생물이나 조류(algae) 등에 의한 영향을 고려한다면 비교적 유입과 손실이 균형을 이루었다고 평가할 수 있다. 또한 기존의 연구결과와 비교하면, 지표수관개 논에서의 부하량보다 현저하게 낮은 값을 나타내어 관개수의 종류와 강우량의 크기에 따라 부하량에도 차이가 있으리라 판단된다. 따라서, 앞으로의 오염총량제의 논에서의 비점오염부하량 산정시 이를 반드시 고려하여야만 합리적인 부하량 산정이 가능하리라 판단된다.5. 지하수관개 필지 논에서의 투입된 영양물질은 벼에 의하여 거의 흡수되고 약 10% 정도가 지표배수형태로 수계로 배출되었는데, 지표배수는 영양물질의 시비가 이루어진 후 첫 번째 강우유출에 의해 대부분이 이루어진 것으로 나타났다. 따라서, 수질관리를 위하여 논에서의 영양물질배출 감소가 필요할 경우에는 시비 직후 강우유출을 효과적으로 억제하는 것이 매우 중요하며 이를 위해서는 특히 영농초기에 물꼬관리가 신중하게 이루어져야 할 것으로 생각된다.

저강우연도 지하수 관개 필지논에서 수도재배기간 동안의 물질수지

황하선 ( H. S. Hwang ),윤춘경 ( C. G. Yoon ),전지홍 ( J. H. Jeon ),김병희 ( B. H. Kim ) 한국농공학회 2002 韓國農工學會誌 : 전원과 자원 Vol.44 No.4

Field experiment was performed to investigate water and nutrient mass balances in paddy field with groundwater irrigation from May to October, 2001. The total water inflow was about 1,183mm in which rainfall, overflow from upstream paddy, and groundwater irrigation accounted for 43, 30, and 27%, respectively. Notice that the precipitation of the study period was less than the average annual precipitation. The total drainage was almost balanced with the inflow and more than half of it was occurred by surface drainage. From the nutrient mass balance analysis, the T-P output (17.56kg/ha) was estimated slightly lower than the input (20.90kg/ha) and the T-N output (130.41kg/ha) was slightly greater than the input (129.24kg/ha). However, the difference was within the expectation and the nutrient mass was thought to be balanced considering uncertainties in field experiment and other activities not included in the study such as algae and soil microorganisms. The surface discharge of nutrient, which was about 10% of total nutrient output, was mainly affected by fertilization and rainfall runoff. Therefore, prudent surface drainage plan might be necessary particularly for the fertilization period to prevent degradation of receiving water quality. The study was performed under abnormally low rainfall compared to the average annual rainfall record, and further monitoring in diverse rainfalls and irrigation methods is recommended to estimate nutrient behavior in the paddy field more reasonably.

총량관리 단위유역 일평균유량의 시계열 누적 변화에 따른 유량지속곡선 차이 분석

황하선 ( Hwang Ha-sun ),이한필 ( Rhee Han-pil ),서지연 ( Seo Ji-yeon ),최유진 ( Choi Yu-jin ),박지형 ( Park Ji- Hyung ),신동석 ( Shin Dong-seok ),이성준 ( Lee Sung-jun ) 한국농공학회 2018 한국농공학회논문집 Vol.60 No.6

The LDC (Load Duration Curve) method can analyze river water quality changes according to flow rate and seasonal conditions. It is also possible to visually recognize whether the target water quality is exceeded or the size of the reduction load. For this reason, it is used for the optimal reduction of TPLCs and analysis of the cause of water pollution. At this time, the flow duration curve should be representative of the water body hydrologic curve, but if not, the uncertainty of the interpretation becomes big because the damaged flow condition is changed. The purpose of this study is to estimate the daily mean flow of the unit watershed using the HSPF model and to analyze the difference of the flow duration curves according to the cumulative daily mean flow rate using the NSE technique. The results show that it is desirable to construct the flow duration curve by using the daily average flow rate of at least 5 years although there is a difference by unit watershed. However, this is the result of the water bodies at the end of Han River basin watershed, so further study on various water bodies will be necessary in the future.

관개방법에 따른 논에서의 영양물질 배출부하 특성 비교

황하선 ( Ha Sun Hwang ),윤춘경 ( C. G. Yoon ),전지홍 ( Ji Hong Jeon ),공동수 ( Dong Soo Kong ),신동석 ( D. S. Shin ) 한국물환경학회 2004 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2004 No.-

지류총량관리를 위한 수체 손상도 분석 방법에 관한 연구

황하선 ( Ha Sun Hwang ),유지철 ( Ji Chul Ryu ),최윤호 ( Yun Ho Choi ),안기홍 ( Ki Hong Ahn ),박지형 ( Ji Hyung Park ),김용석 ( Yong Seok Kim ),이성준 ( Sung Jun Lee ) 한국물환경학회(구 한국수질보전학회) 2016 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2016 No.-

낙동강수계 3단계 광역시·도 경계지점 목표수질 설정 방법 연구

황하선 ( Ha Sun Hwang ),박지형 ( Ji Hyung Park ),김용석 ( Yong Seok Kim ),류덕희 ( Doug Hee Rhew ),최유진 ( Yu Jin Choi ),이성준 ( Sung Jun Lee ) 한국물환경학회(구 한국수질보전학회) 2017 한국물환경학회지 Vol.33 No.1

Total Pollution Load Control (TPLC) is a system for managing the discharge load assigned by satisfying the Water Quality (TWQ) in Standard Flow Conditions (SFC). TWQ between Metropolitan Cities/Dos Specified (Cities/Dos TWQ) is very important as the basis for each Unit Watershed TWQ. The purpose of this study was to establish a rational and scientific "Calculation Method for Cities/Dos TWQ." A methodology for the third-phase Cities/Dos TWQ was proposed in this study based on review of the past phases (first and second) Cities/Dos TWQ in the Nakdong river basin. The water-quality model was used to estimate the third-phase Cities/Dos TWQ. The allocation methods of individual discharge sources are important for estimating Cities/Dos TWQ In this case, the key point of the method of calculating the total allowable individual sources is the balance of the equity and the efficiency between individual sources of reduced pollutants. Thus, water quality should be determined for the current emission levels, the reduction capacity, and the technical possibilities of individual sources. We estimate the third-phase Cities/Dos TWQ according to the ` Calculation Method of Cities/Dos TWQ`.