• Title/Summary/Keyword: Nonpoint source pollution management

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A Study on the Nonpoint Source Pollution Management Guideline for Golf Course Construction (골프장 개발에 따른 비점오염 관리를 위한 지침마련에 대한 연구)

  • Im, Sang-Jun;Kim, Sang-Min;Kang, Moon-Seong
    • Journal of agriculture & life science
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    • v.43 no.3
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    • pp.55-62
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    • 2009
  • The objective of this study is to establish the management guideline for golf course construction nonpoint source pollution reduction. For this, the characteristics of nonpoint source pollution from golf course construction and current management status were investigated. Investigated results showed that before and after monitoring for golf course construction sites are necessary as well as during the construction. It is important to focus on erosion and sediment control during the construction. To reduce a nonpoint source pollution from golf course construction, it is necessary to analyze the nonpoint source pollution movement through effective monitoring system and make a effective pollution reduction strategy considering construction stages, origin of the pollution and diverse management practices.

Selection of Business Types for the Installation of Nonpoint Pollution Source Control Facilities

  • Choi, Ji-Yong;Hwang, Dae-Ho
    • Environmental Engineering Research
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    • v.15 no.1
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    • pp.29-33
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    • 2010
  • In 2004, the Korean government launched comprehensive measures for nonpoint pollution that were intended to reduce their amount by 34.3% over of those forecast by 2020. During the first and second stages of their implementation; from 2004 to 2011, nonpoint source (NPS) measures have focused on systemic improvements and project management, as well as the introduction of optimal management techniques; accordingly, reductions have been small. However, during the third stage in 2011, serious reductions will be pursued. Accordingly, the gradual expansion of sites subject to NPS measures has focused on the establishment of a basis for reduction measures in connection with model projects during the first half of the plan, with full scale enforcement due in the second half. For Korea, rather than commencing NPS management en masse, it has been more appropriate to gradate NPS management into stages tailored to the different needs of new and existing businesses, as well as to the needs of large and small-scale businesses, in consideration of their specific circumstances. This has allowed sufficient time for such businesses to become accustomed to the concept of NPS management.

Development and Application of a GIS Interface for the Agricultural Nonpoint Source Pollution (AGNPS) Model(I) -Model Development- (농업비점원오염모형을 위한 GIS 호환모형의 개발 및 적용(I) -모형의 구성-)

  • 김진택;박승우
    • Magazine of the Korean Society of Agricultural Engineers
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    • v.39 no.1
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    • pp.41-47
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    • 1997
  • A geographical resource analysis support system (GRASS) was incorporated to an input and output processor for the agricultural nonpoint source pollution (AGNPS) model. The resulting interface system, GIS-AGNPS was a user-friendly, menu-driven system. GIS-AGNPS was developed to automatically process the input and output data from GIS-based data using GRASS and Motif routines. GIS-AGNPS was consisted of GISAGIN which was an input processor for the AGNPS model, GISAGOUT a output processor for the AGNPS and management submodel. The system defines an input data set for AGNPS from attributes of basic and thematic maps. It also provides with editing modes so that users can adjust and detail the values for selected input parameters, if needed. The post-processor at the system displays graphically the outputs from AGNPS, which may he used to identify areas significantly contributing nonpoint source pollution loads.

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Survey and Analyses of Farming Condition and Nonpoint Source Pollution in the Flood Control Area of the Multi-purpose Dams (다목적댐 홍수조절용지 내 경작실태 및 비점원오염부하량 조사 분석)

  • Chung Ji-Eun;Chung Sang-Ok
    • KCID journal
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    • v.10 no.1
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    • pp.44-52
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    • 2003
  • This study surveyed farming condition and the effects of nonpoint source pollution loading by cultivating in the flood control area of multi-purpose dams. According to the multi-purpose dam management regulation, cultivation can be permitted between norma

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Assessing the Action Plans in the Control Area(Soyang Reservoir) of Non-point Source Pollution (비점오염원 관리지역(소양호) 목표수질 달성도 평가)

  • Choi, Jaewan;Kang, Min-Ji;Ryu, Jichul;Kim, Dong-Il;Lim, Kyung-Jae;Shin, Dong-Seok
    • Journal of Environmental Science International
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    • v.23 no.5
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    • pp.839-852
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    • 2014
  • The Ministry of Environment (MOE) has made more effort in managing point source pollution rather than in nonpoint source pollution in order to improve water quality of the four major rivers. However, it would be difficult to meet water quality targets solely by managing the point source pollution. As a result of the comprehensive measures established in 2004 under the leadership of the Prime Minister's Office, a variety of policies such as the designation of control areas to manage nonpoint source pollution are now in place. Various action plans to manage nonpoint source pollution have been implemented in the Soyang-dam watershed as one of the control areas designed in 2007. However, there are no tools to comprehensively assess the effectiveness of the action plans. Therefore, this study would assess the action plans (especially, BMPs) designed to manage Soyang-dam watershed with the WinHSPF and the CE-QUAL-W2. To this end, we simulated the rainfall-runoff and the water quality (SS) of the watershed and the reservoir after conducting model calibration and the model validation. As the results of the calibration for the WinHSPF, the determination coefficient ($R^2$) for the flow (Q, $m^3/s$) was 0.87 and the $R^2$ for the SS was 0.78. As the results of the validation, the former was 0.78 and the latter was 0.67. The results seem to be acceptable. Similarly, the calibration results of the CE-QUAL-W2 showed that the RMSE for the water level was 1.08 and the RMSE for the SS was 1.11. The validation results(RMSE) of the water level was 1.86 and the SS was 1.86. Based on the daily simulation results, the water quality target (turbidity 50 NTU) was not exceeded for 2009~2011, as results of maximum turbidity in '09, '10, and '11 were 3.1, 2.5, 5.6 NTU, respectively. The maximum turbidity in the years with the maximum, the minimum, and the average of yearly precipitation (1982~2011) were 15.5, 7.8, and 9.0, respectively, and therefore the water quality target was satisfied. It was discharged high turbidity at Inbuk, Gaa, Naerin, Gwidun, Woogak, Jeongja watershed resulting of the maximum turbidity by sub-basins in 3years(2009~2011). The results indicated that the water quality target for the nonpoint source pollution management should be changed and management area should be adjusted and reduced.

Analysis on Load of Non-point Source from Sewage Treatment Districts in Nakdong River (낙동강 유역 내 하수처리구역의 비점 배출 부하량 분석)

  • Shin, Hyun Suk;Kim, Mi Eun;Kim, Jae Moon;Jang, Jong Kyung
    • Journal of Korea Water Resources Association
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    • v.48 no.9
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    • pp.695-709
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    • 2015
  • The inflow of nonpoint pollution sources due to sustainable development and urbanization is gradually increasing and causes a diversity of water pollution. There are lots of difficulties to find a solution as the problems related to variation of hydrological and natural phenomenon. A differentiated method to estimate the nonpoint pollution sources has been proposed using rainfall and characteristics of urbanization and observed data from sewage treatment districts in the study. The types of nonpoint pollution sources on an assumption of combined sewer system have been classified as three types which are inflow of rainfall, bypass of sewage treatments, and combined sewer overflows from a river. Three types for estimation of nonpoint pollution sources applied more accurately to generate a amount of nonpoint pollution loads. This study is expecting a wide application for effective water resource management on TMDL (total maximum delivery load) unit watershed and sewage treatment districts.

Application of vegetative filter strip to control nonpoint source pollution (비점원 오염관리를 위한 식생여과대의 적용)

  • Chung, Ji-Eun;Chung, Sang-Ok
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2002.10a
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    • pp.417-420
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    • 2002
  • Non-point source pollution of sediment, plant nutrients and pesticides from cropland has been identified as a significant environmental problem. Vegetative Filter Strips have been identified as one of BMPs to control nonpoint source pollution. This paper reviews the concept, functions, design criteria and management of VFS to control nonpoint source pollution.

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The Impacts of Runoff the Nonpoint Source Pollution and Soil Physical Change for Mountainous Management Practice (고랭지 영농방법이 비점원오염 물질의 유출과 토양의 물리적 변화에 미치는 영향)

  • 최중대;강태영;김도찬
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 1998.10a
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    • pp.521-526
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    • 1998
  • This study was initiated to build runoff plots, install soil and water quality monitoring systems and collect background data from the plots and soils to assess runoff the nonpoint source pollution and soil physical change in mountainous soils. Eleven 3 $\times$ 15 m runoff plots and monitoring systems were installed at a field of National Alpine Agricultural Experiment Station to monitor soil physical change, and discharge of nonpoint source pollutant. Corn and potato were cultivated under different fertilizer, tillage and residue cover treatments. The soil has a single-layered cluster structure that has a relatively good hydrologic properties and can adsorb a large amount of nutrient. 11 runoff plots were treated and monitored with respect to physical property of the soil, runoff and sediment discharge.

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Categorizing the Landcover Classes of the Satellite Imagery for the Management of the Nonpoint Source Pollutions (비점오염원 수문유출모형에 적용 가능한 위성영상의 토지피복 분류항목 설정)

  • Seo, Dong-Jo
    • The Journal of the Korea Contents Association
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    • v.9 no.11
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    • pp.465-474
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    • 2009
  • To measure the amount of nonpoint source pollution, some efforts are tried to utilize satellite imagery. But, as the factors for water models do not relate with the landcover categories for satellite imagery, satellite imagery are adapted to roughly classified thematic map or used only for the image interpretation. The purpose of this study is to establish the landcover categories of satellite imagery to relate with the water models. To establish the categories of the landcover for the water models, it was investigated to get main factors of water flow models for the nonpoint source pollution and to review the existing study and the classification system. For this result, it was convinced that the basic unit on the nonpoint source pollution, landcover coefficients of SCS Curve Number, the crop factor of Universal Soil Loss Equation, Manning's roughness coefficients are the useful parameters to extract information from the satellite imagery. After the setup the categories for the landcover classification, it was finally defined from the consultation of the water model specialist. Woopo wetland watershed was selected to the study area because it is a representative wetland in Korea and needs the management system for nonpoint source pollution. There were used Landsat ETM Plus and SPOT-5 satellite imagery to assess the result of the image classification.

Comparison of Characteristics of Nonpoint Source Pollution from Separate and Combined Sewer System (합류식 월류수와 분류식 우수유출수의 비점오염물질 유출특성 비교)

  • Shin, Min Hwan;Jeon, Ji-Hong
    • Journal of Korean Society on Water Environment
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    • v.33 no.1
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    • pp.97-106
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    • 2017
  • In this study, the characteristics of nonpoint source pollutant loads from separate sewer overflow (SSO) and combined sewer overflow (CSO) were evaluated during 2016 in Namyangju city, Korea. Five rainfall events were monitored during 2016 with ranging from 14.5 mm to 121.5 mm. The runoff ratio of CSO was higher than that of SSO because only design volume of maximum sanitary sewer ($1Q_h$) was transported and treated and $2Q_h$ was overflowed to waterbody during rainy day although combined sewer system was designed to transport $3Q_h$ to treatment system. The event mean concentrations (EMCs) and pollutant loads from CSO were higher than those from SSO. BOD and COD of CSO, and TOC and TN of SSO represented distinct first flush phenomena. The inadequate management in combined sewer system from which the untreated $2Q_h$ from CSO was overflowed to waterbody during rainy day could influence on high pollutant loads and first flushing. Treating $2Q_h$ from CSO, source control such as low impact development, and treating outflow from SSO were strongly recommended to control non-point source pollution in urban area.