• 한국환경과학회지
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• 제25권2호
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• pp.323-329
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• 2016

In this study, the applicability of MBR process was evaluated to improve processing of personal sewage treatment facilities of $50m^3/day$ or less. As result of the research, stable discharge water quality could be secured as result of the MBR effector operation according to rate of inflow and inflow load and treatment efficiency of 98% or higher was shown by the membrane filtering method operation for SS, $BOD_5$. it was found that high treatment efficiency of 99% or higher. It is judged that detention time can be designed until 6.9 hr when applying MBR process on personal sewage treatment facilities with high pollution load and that cutback of pollution load can be possible through this study. It was shown that MBR process application reduces an annual cost of 4,829,600 won based on the basic unit calculation results and solves burden of amount of borne by causers according to excess of discharge water quality standards.

• 유기물자원화
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• 제5권2호
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• pp.1-6
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• 1997

서울시에는 서울시 중심부로부터 13km 내에 소나 돼지를 도살하는 도축장이 3개 있다. 3개 도축장은 송파구 가락동에 축협공판장, 성동구 마장동의 우성농역 그리고 구로구 독산동의 협진 식품이다. 이 연구의 목적은 (1) 3개 도축장의 폐수처리 현황, (2) 도축폐수의 특성 조사 그리고 (3) 한강에 미치는 오염부하량을 조사하기 위함이다. 연구의 결과는 (1) 도축장으로부터 나오는 폐수의 BOD/COD의 비는 0.8~0.9로 나타났다. (2) 오염 원단위를 BOD/마리로 표시하면 축협공판장은 726g BOD/마리, 우성농역은 797g BOD/마리, 협진식품은 797g BOD/마리로 조사되었다. 그리고 이들 3개 도축장의 평균값은 767g BOD/마리이며 지육세척수는 $112.6g/m^2{\cdot}d$로 나타났다. (3) 3개 도축장에 대한 총 오염부하량은 5,050 kg/day이며 이것은 한강 전체 오염부하량에 1%에 해당된다.

• 유기물자원화
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• 제24권2호
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• pp.41-49
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• 2016

P시에서는 음폐수 처리를 위해 병합처리시설을 설치하였으나, 음폐수 발생량 대비 처리용량이 부족한 실정이다. 또한 병합처리시설 방류수는 인근 바다로 직방류 되고 있어 환경적 문제가 발생할 수 있다. 따라서 본 연구에서는 P하수처리장을 대상으로 P시 발생 음폐수 처리 초과 분량 및 병합처리시설 방류수 연계처리 가능성을 검토하였다. 예상 가능한 4개의 시나리오를 세운 후, 각각의 최대 음폐수 및 병합처리시설 방류수 허용 투입량을 산정 하고, 투입 후 P하수처리장 유입수 성상 변화및 시나리오별 예상 처리비용을 비교 하였다. 검토된 모든 시나리오에서 환경부의 음폐수 병합처리 업무지침을 준수하면서 음폐수 및 병합처리시설 방류수 대부분을 P하수처리장에 연계 처리 가능하며 하수처리장 부하에도 큰 영향을 주지 않을 것으로 산정 되었다.

• 한국농공학회지
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• 제45권4호
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• pp.78-88
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• 2003

The land use changes from non-urban areas to urban areas lead to the increased impervious areas, consequently increased direct runoff and higher peak runoff. Urban areas have also been recognized as significant sources of Nonpoint Source (NPS) pollution, while agricultural activities have been known as the primary sources of NPS pollution. Many features of the L-THIA/NPS GIS, L-THIA/NPS WWW system have been enhanced to provide easy-to-use system. The L-THIA model was applied to the Little Eagle Creek (LEC) watershed in Indiana to evaluate the accuracy of the model. The L-THIA/NPS GIS estimated yearly direct runoff values match the direct runoff separated from U.S. Geological Survey stream flow data reasonably. The $R^2$ and Nash-Sutcliffe values are 0.67 and 0.60, respectively. The L-THIA estimated runoff volume and total nitrogen loading for each land use classification in the LEC watershed were computed. The estimated runoff volume and total nitrogen loading in the LEC watershed increased by 180% and 270% for the 20 years. Urbanized areas -"Commercial", "High Density Residential", and "Low Density Residential"- of the LEC watershed made up around 68% of the 1991 total land areas, however contributed more than 92% of average annual runoff and 86% of total nitrogen loading. Therefore, it is essential to consider the impacts of land use change on hydrology and water quality in land use planning of urbanizing watershed.nning of urbanizing watershed.

• 한국물환경학회지
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• 제33권1호
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• pp.78-89
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• 2017

Water quality monitoring network data is being affected continuously due to non-point source pollution arising from agricultural land located on the Gwangsancheon outlet in the Nakdong River basin. In this study, we have performed analysis of water quality monitoring system, water quality pattern using SOM and water quality in the Gwangsancheon for sub-basin located at Gisan-myeon in the Nakdong River basin. We have developed and applied the model to estimate the runoff and non-point source loading. As a result of SOM pattern, the effect of non-point source pollution was the largest in the paddy fields and fields. As a result of the developed model, we found contribution rate and reduction rate for non-point source loading according to change of landuse because the reduction effect of nonpoint pollutants was 20.9% of SS, 9.9% of TN, 21.2% of TP and 8.9% of TOC depending on the landuse change.

• 세라미스트
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• 제21권3호
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• pp.302-308
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• 2018

This work reported the trends of bioceramic materials for beauty-care applications with the several represent examples - tone-up, sun-care and anti-pollution cosmetics. The development of cosmetic techniques was discussed and reviewed with various ceramic hybrid materials. Moreover, we also reported the preparation and application of functional cosmetics with silicified liposome particles as a good make-up material for controlled release with natural compounds. The homogeneous loading and highly controlled-release formulation with porous and silicified ceramic liposome ceramic materials were discussed.

• 한국관개배수논문집
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• 제10권1호
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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

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2007년도 Proceedings of ISRS 2007
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• pp.229-233
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• 2007

This study is to test the applicability of QuickBird image for non-point source pollution assessment. SWAT (Soil and Water Assessment Tool) model was adopted and the model was calibrated for a stream watershed of 255.4 $km^2$ Landsat land use data. For model application with QuickBird image, a precise agricultural land use map of 1.16 $km^2$ area located in the upstream watershed was produced by field investigation. The model was run with the combination of land use and soil map scales (1:5,000, 1:25,000 and 1:50,000). The results were compared and analyzed for the contribution of non-point source pollution by the land use scale and contents.

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2002년도 춘계학술대회 논문집
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• pp.255-256
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• 2002

포장도로에서의 자동차 운행으로 인한 비산먼지(fugitive dust)와 곳곳에 산재한 건설현장에서의 비산 먼지가 도시ㆍ산단지역의 미세먼지 배출량에 가장 큰 기여를 하고 있는 것으로 알려지고 있다. 국내의 경우 비산먼지의 기여도가 연소과정에서 발생하는 미세먼지(유류보일러, 자동차, 기타 산업공정)보다 많게는 10배 가량 큰 것으로 조사되었다. (중략)

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2002년도 추계학술대회 논문집
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• pp.312-313
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• 2002

도로에서의 비산먼지는 건설현장 트럭에 의한 토사의 유입, 운반 중에 날리는 토사, 토양의 침식, 겨울철 모래살포, 타이어의 마모 등에 의하여 도로표면에 쌓인 먼지가 차량의 운행이나 바람으로 인하여 발생한다. 국내 주요도시 및 산업단지는 대부분이 포장도로로서 주변환경에서 유입되는 먼지와 함께 차량의 운행으로 인한 비산먼지(Fugitive dust)의 영향이 지대하며, 건설현장에서 발생되는 비산먼지와 함께 도시·산단지역의 미세먼지 배출량에 큰 기여를 하는 것으로 조사되었다. (중략)