• 제목/요약/키워드: Environmental applications

검색결과 2,202건 처리시간 0.029초

APPLICATIONS OF FERRATE(VI) IN THE TREATMENT OF WASTEWATERS

  • Tiwari, Diwakar;Yang, Jae-Kyu;Lee, Seung-Mok
    • Environmental Engineering Research
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    • 제10권6호
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    • pp.269-282
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    • 2005
  • The novel behavior of ferrate(VI) has received an increased attention for its possible applications in various purposes particularly in the treatment of waste/effluent waters. It possess relatively high oxidizing capacity and the reduced ferrate(VI) into Fe(III) again an important and useful precipitant, coagulant, flocculants and likely to be a good adsorbent via the formation of ferric hydroxide for various metal cations. Moreover, the non-toxic effect makes it a 'green chemical' and further enhances its widespread uses in various purposes. Here an attempt has been made to review the applications of ferrate(VI) in the treatment of waste waters and also its possible future applications in the wastewater treatment technology.

Environmental Sensor Selection : classification and its applications

  • Rhee, In-Hyoung;Cho, Daechul
    • 한국산학기술학회논문지
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    • 제5권1호
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    • pp.87-92
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    • 2004
  • This review focuses on the developed and the being developed environmental sensors in particular biological sensors. As well as discussing the classification and some main principles, presenting current trend of the environmental sensors is given. Two main categories are immunosensors and catalytic sensors. In addition to those. DNA or RNA sensors or protein based sensors are discussed. Some crucial examples of the applications of such sensors are given to show how the sensor technology it used for environmental and biological monitoring, biomarkers of exposure.

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The Impact of Environmental Characteristics on Electronic Commerce Performance

  • Cho, Se-Hyung
    • 한국정보기술응용학회:학술대회논문집
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    • 한국정보기술응용학회 2005년도 6th 2005 International Conference on Computers, Communications and System
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    • pp.357-360
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    • 2005
  • Domestic enterprises are surveyed and analyzed to find the empirical relationship between environmental characteristics and electronic commerce(EC) performance. Dynamism, hostility and heterogeneity are selected as environmental characteristics. EC performance is articulated as EC utilization, EC satisfaction and EC usefulness. Empirical test presents that dynamism has a statistically significant relationship with EC performance except EC usefulness, but hostility and heterogeneity have no statistically significant relationship with EC performance. The impact of industry type on environmental characteristics and EC performance is also tested.

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Environmental Applications of Rare-Earth Manganites as Catalysts: A Comparative Study

  • Alami, D.
    • Environmental Engineering Research
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    • 제18권4호
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    • pp.211-219
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    • 2013
  • Rare-earth manganites have a great potential for environmental applications based on their chemical and physical properties. The use of rare-earth manganites as catalysts for environmentally essential reactions was reviewed. Artificial neural networks were used to assess the catalytic activity in oxidation reactions. Relative catalytic activities of the catalysts were further discussed. We concluded that cerium manganite is the most practicable catalyst for technological purposes.

미생물 연료전지의 원리 및 환경보건 분야로의 응용 (Microbial Fuel Cells: Principles and Applications to Environmental Health)

  • 한선기
    • 한국환경보건학회지
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    • 제38권2호
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    • pp.83-94
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    • 2012
  • The research on microbial fuel cells (MFCs) needs various knowledge of different fields such as electrochemistry, microbiology, environmental engineering, and material engineering. Although electrochemically active bacteria are very diverse, the performance of MFCs is affected primarily by the structure of the reactor system. Thus, the development in the system architecture is critical to lower internal resistance and increase power generation for commercialization. This paper summarizes the principles of MFCs and demonstrates the infinite potential of MFCs in various applications including wastewater treatment, biosensors, biohydrogen production, remote power sources, implantable medical devices, etc.

환경영향평가와 환경정보체계 (Environmental Impact Assessment and Environmental Information System)

  • 김명진;한의정
    • 환경영향평가
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    • 제4권3호
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    • pp.95-102
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    • 1995
  • Environmental Impact Assessment (EIA) in Korea has worked toward environmental conservation and decision making since the Environmental Impact Statement of 1981. In order to implement the EIA process effectively, we have developed a system for and various methods of EIA. Among these methods, the Environmental Information System, which was introduced recently in Korea, can be used to integrate geographic and attribute data effectively. This study includes methods by which we may use the Environmental Information System. First of all, it explains building EIA factors on the natural environment, the living environment, and the socio-economic environment defined by Environmental Impact Statement regulations in Korea. This study also presents some applications of the assessment methods concerning suitability analysis of landfill sites. Finally, it shows the effectiveness of the Environmental Information System in odor impact assessment. Based on these analysis, the study makes some conclusions for the applications of the Environmental Information System.

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환경영향평가에 사용되는 컴퓨터 모델에 관한 연구 I : 수질 모델 (A Study of Computer Models Used in Environmental Impact Assessment I : Water Quality Models)

  • 박석순;나은혜
    • 환경영향평가
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    • 제9권1호
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    • pp.13-24
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    • 2000
  • This paper presents a study of water quality model applications in environmental impact statements which were submitted during recent years in Korea. Most of the applications have reported that the development projects would have significant impacts on the water quality, especially, of streams and rivers. The water quality models, however, were hardly used as an impact prediction tool. Even in the cases where models were used, calibration and verification studies were not performed and thus the predicted results would not be reliable. These poor model applications in environmental impact assessment can be attributable to the fact that there were no available model application guidelines as well as no requirements by the review agency. In addition, the expected waste loads were improperly estimated in most cases, especially in non-point sources, and the predicted parameters were not good enough to understand water quality problems expected from the proposed plans. The effects of mitigation measures were not analyzed in most cases. Again, these can be attributed to no formal guidelines available for impact predictions until now. A brief guideline is described in this paper, including model selection, calibration and verification, impact prediction, and analysis of effects of mitigation measures. The results of this study indicate that the model application should be required to overcome the current improper predictions of environmental impacts and the guidelines should be developed in detail and provided.

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Bibliographic and network analysis of environmental impacts to animal contagious diseases

  • Jee-Sun, Oh;Sang-Joon, Lee;Sang Jin, Lim;Yung Chul, Park;Ho-Seong, Cho;Yeonsu, Oh
    • 한국동물위생학회지
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    • 제45권4호
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    • pp.253-262
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    • 2022
  • The applications of artificial intelligence (AI) can provide useful solutions to animal infectious diseases and their impact on humans. The advent of AI learning algorithms and recognition technologies is especially advantageous in applied studies, including the detection, analysis, impact assessment, simulation, and prediction of environmental impacts on malignant animal epidemics. To this end, this study specifically focused on environmental pollution and animal diseases. While the number of related studies is rapidly increasing, the research trends, evolution, and collaboration in this field are not yet well-established. We analyzed the bibliographic data of 1191 articles on AI applications to environmental pollution and animal diseases during the period of 2000~2019; these articles were collected from the Web of Science (WoS). The results revealed that PR China and the United States are the leaders in research production, impact, and collaboration. Finally, we provided research directions and practical implications for the incorporation of AI applications to address environmental impacts on animal diseases.

옥상녹화 기술의 특허출원 동향분석 (Analysis of Trends in Patent Applications for Rooftop Greening Techniques)

  • 이은희;강규이;나은정
    • 한국환경복원기술학회지
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    • 제8권1호
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    • pp.88-99
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    • 2005
  • This research aimed to investigate the current trends of rooftop greening techniques of frequent use within and without Korea. It is also expected that this research will help developing new rooftop greening techniques appropriate for Korean environment. Data for this study have been collected from patent applications for rooftop greening techniques; the web sites of the Korean Intellectual Property Office as well as patent offices in Germany and Japan, where active researches on rooftop greening techniques are in progress. 168 applications within a period from the year of 1984 to December of 2004 were examined, among which Japan excelled with its 81 applications followed by Germany(54), Korea(31)and USA(2). In case of Japan, where more patent applications were found than in any other countries, applications for Plant Base(38) excelled others - System(36), Management(4) and Plant(3) in the number of applications. As for Germany, 25 cases were on Plant Base, 25 cases on System, and 4 cases on Plant; in Korea, 15 cases were on Plant Base, 11 cases on System, 3 cases on Plant and 2 cases on Management; in USA, 1 cases were on System and 1 cases on Plant. Overall, the total number of patent applications in three countries reaches 168 cases; among which Plant Base topped in all four countries, followed by 73 cases on System. Applications concerning Plant and Management totalled to 11 and 6 for each. In conclusion, most patents were concentrated on Plant Base and System while researches on Plant and Management still do not get as much attention as they deserve. Research and development of various techniques on Plant must be a precondition for the formation of diverse Bio-tops suitable for the environments of specific areas. Concrete researches on rooftop greening techniques will contribute to the improvement of urban ecosystem by developing more convenient and easily applicable techniques during the time of actual construction.