• Environmental Engineering Research
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• 제23권3호
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• pp.294-300
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• 2018

Cometabolism technology was employed to degrade lignin wastewater in Sequencing Batch Biofilm Reactor. Cometabolic system (with glucose and lignin in inflow) and the control group (only lignin in inflow) were established to do a comparative study. In contrast with the control group, the average removal rates of lignin increased by 14.7% and total oarganic carbon increased by 32% in the cometabolic system with glucose as growth substrate, under the condition of 5 mg/L DO, $0.2kgCOD/(m^3{\cdot}d)$ lignin and glucose $1.0kgCOD/(m^3{\cdot}d)$. Functional groups of lignin are degraded effectively in cometabolic system proved by fourier transform infrared spectroscopy and Gas Chromatography-Mass Spectrometer, and the degradation products were amides (mainly including acetamide, N-ethylacetamide and N, N-diethylacetamide), alcohols (mainly including glycerol and ethylene glycol) and acids. Meanwhile, results of Polymerase Chain Reaction-Denaturing Gradient Gel Electrophoresis showed great differences in microbial population richness between cometabolic system and the control group. The Margalef's richness index and Shannon-Wiener's diversity index of microorganism in cometabolic system were 3.075 and 2.61, respectively. The results showed that extra addition of glucose, with a concentration of 943 mg/L, was beneficial to lignin biodegradation in cometabolic system.

• 한국건설관리학회논문집
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• 제22권6호
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• pp.87-95
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• 2021

본 연구는 새만금에 조성되는 환경생태용지사업의 실물옵션기법을 사용하여 경제성분석을 하였다. 30년 동안 운영하는 동안 수익에 영향을 주는 주요 요소들을 정의하였다. 수익의 변동성을 시나리오 분석방법으로 계산하여, 경영적 유연성을 적용할 수 있는 옵션 기반 분석방법을 제시하였다. 환경생태공원 경제성분석에 필요한 이용객수, 입장요금, 체험프로그램요금, 유지관리비용 등은 국내 유사한 환경생태공원의 사례를 분석하였다. 운영 중 포기할 수 있는 옵션권리를 가지는 것으로 가정하여 옵션가치를 계산하였다. B/C는 1미만의 값이 나오고, NPV는 음수로 나와 전통적인 경제성분석방법으로는 사업을 진행할 수가 없으나, 실물옵션분석으로 평가하면 사업의 가치가 상승하여 수익성을 확보할 수 있다. NPV(-466억원)과 옵션가치(281억원)의 가격차이 747억원의 가치상승이 발생하였다. 본 연구를 통해서 환경생태용지사업을 계획하려는 공공기관 및 민간사업자의 투자담당자는 본 연구에서 제시된 실물옵션기법을 활용하여 상황에 적절한 옵션을 선택하여 경제성분석을 할 수 있도록 도움을 줄 수 있을 것이다.

• Ecology and Resilient Infrastructure
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• 제6권4호
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• pp.217-226
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• 2019

본 연구에서는 하천의 하안 경사와 친수시설 유무에 따라 적절한 하안 보호 공법을 유형화하였으며, 특히 기존의 호안 공법으로 하안침식 방지 대책 적용이 적절하지 않은 유형에 대해 적용 가능한 신개념 Eco-hybrid 롤링매트 공법을 제시하였다. Eco-hybrid 롤링매트 공법은 지반과 사면의 교란없이 하천 환경과 생태 조건의 변화를 최소화하는 시공이 가능하고, 하안침식이 발생할 경우 즉각적인으로 호안이나 제방 사면을 보호할 수 있는 경제적이고 효율적인 공법이다. 개발된 Eco-hybrid 롤링매트 공법은 실규모 하천 실험을 통해 공법의 구조 및 시스템, 기능과 효과를 검증하였다. 현장에서 발생할 수 있는 여러 변형 및 부패 테스트를 포함한 실규모 하천 실험 검증을 수행하였으며, 저유속과 고유속 조건에서 롤링매트의 작동과 하안침식 방지 효과를 확인하였다. 하안침식 방지 효과는 유사 농도 분석을 통해 정량적으로 검증하였으며, 실험에 활용한 롤링매트를 기준으로 규격화하여 Eco-hybrid 롤링매트 공법의 제품의 시방 (안)을 제시하였다.

• 한국환경복원기술학회지
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• 제10권4호
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• pp.54-69
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• 2007

The objective of study is to propose theoretical basis for applying planning elements to Environment-friendly Public Land Development in integrated perspective of 'eco' and 'health'. For this purpose, First, the definition of 'Environment-friendly Public Development' and the interrelation between 'eco' and 'heath' as the component element of it are proposed. Secondly, based on internal and external case studies, eco and health related planning elements are deprived. And to assess the planning elements efficiently, representative planning elements are selected by each content. Thirdly, based on the analysis of specialist question, how the selected planning elements contribute to the improvement of human health and ecosystem is assessed. The result of study could be useful to reflect the regional condition and to predict the effect of the application.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2008년도 정기 학술대회
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• pp.538-543
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• 2008

Urban development and industrialization cause many problems on urban environment such as climate changes, natural disasters and a decreasing number of species. Problems on urban environment are the main factor of that lower the quality of life and obstruct continual development. As a result, eco space becomes the important part of a urban planning. This research, building plan U-Eco city which is establishing with the clean environment and high technology for solve the development thoughtless for the city environment problem and ecological problem. We suggest U-Eco space system which accreted with Ubiquitous technology to three physical divisions, which are lithosphere (land), hydrosphere (water), and aerosphere (air), that interact with the whole biosphere by forming the system. It has composed with U-Green belt that corresponds to lithosphere, U-Blue belt that is applicable to hydrosphere, and U-White belt that comes under aerosphere.

• KIEAE Journal
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• 제2권4호
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• pp.27-39
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• 2002

The fields of green building and ecological design have much to offer to those who are seeking to improve the ecological impact of schools and school grounds. These well established disciplines are particularly useful to existing schools considering renovations to make them more energy, water, and resource efficient as well as healthier places to work and play, Green building and ecological design principles and techniques are also very effective, of course, if incorporated into the design for brand new school buildings. The major concept of the Eco-school plan is to understand that the school consists of an ecosystem, so the design concept should focus on minimising impact but at the same time maintaining close contact with the environment. T his is becoming the basic concept in applying the Eco-school design to the new 21st century school building. This thesis is an analysis on the methods of application, based on careful examination of case-studies from the U.S.A about detailed plan element and design method, through the following six aspects ; (1) site use plan, (2) green plan, (3) water system plan, (4) materials and recycling of resources, (5) energy use plan, (6) indoor environment plan.

• 한국환경교육학회지:환경교육
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• 제19권3호
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• pp.114-122
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• 2006

Since 1985, the Ministry of Environment have supported environment conservation model schools (ECMS) to promote more structured and effective environmental education in schools. For driving ECMS to playa central role for sustainable schools in the community in Korea, international trends in foreign environmental education model schools need to be analysed in addition to overall evaluations of the present status. Eco-school related initiatives as whole-school approaches in other countries include Eco-Schools, Green School, Enviro School, and Sustainable School, etc. and most of them are usually involved in international network such as ENSI(Environment and School Initiatives) and FEE(Foundation for Environmental Education). This study was based on the literature analysis, which included available documents and reports of other countries from country reports, web-pages or official documents. Also, face-to-face or email interviews with personnels responsible for running such initiatives in a couple of countries were conducted. Implications for operating and supporting ECMS were provided based on the analysis and investigation on eco-school related initiatives of other countries, which included the main objective of initiatives, overall program direction, supporting methods, criteria for selection or accreditation, evaluation and monitoring.

• 한국인쇄학회지
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• 제26권2호
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• pp.79-89
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• 2008

Eco printing offers the perfect balance between getting all our printing jobs done without endangering the environment. It is important to realize that the printing industry is no exception to this rampant destruction of the planet's natural resources. In fact, surprisingly enough, its effect on the environment is an extremely harmful one. Like most other production operations, printing houses also produce harmful waste products that pollute the air we breathe in. They also put a great drain on precious natural resources. Printing houses emit what are known as volatile organic compounds (VOCs), caused by the use of petroleum-based inks, laminates, varnishes and adhesives. Studies show that these compounds, when inhaled, greatly increase the risk of asthma attacks. Eco printing, however, has a larger scope than is apparent. Eco printing has a dual essence. In order to understand what it is really all about, the issue of conservation is no less important than the need to stop polluting the environment.

• 복식
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• 제30권
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• pp.227-237
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• 1996

The purpose of this study is to investigate the main characteristics of the environmentalism expressed in contemporary fashion. i.e. 'eco-look'. They can be categorized into naturalism symbolism primitiveness and concern about recycling. First naturalistic tendency can be found in through the method of some contemporary eco-looks which are using natural colors harmonisation of the colors in similarity and in controst and expressing in a realistic manner some natural entities or use some ornaments representing them. Such trends easily let people to feel the clothes unified with the nature and human beings. Secondly some contemporary eco-looks express environmentalistic ideas for examples the idea for protection of the nature or the idea against pollution of the earth and destruction of nature in a symbolistic way. Thirdly primitiveness is one of the most characteristic feature in contemporary eco-looks. It can be found in contemporary eco-looks, In can be found in some eco-looks using primitive or original images of Africa and underdeveloped countries. it reflects the human desire to go back to the nature or to the unity with the nature, Finally recycled materials are commonly used in eco-look. Patchwork and handmade knits are popular methods for this mode. They implicates the idea of pragmatism and simplicity in fashion. One Conclusion of the paper on eco-look: fashion design which can be itself an import-ant environment of human beings Secondly some contemporary eco-looks ex-press environmentalistic ideas for examples the idea for protection of the nature or the idea against pollution of the earth and destruction of nature in a symbolistic way. Thirdly primitiveness is one of the most characteristic feature in contemporary eco-looks. It can be found in some eco-looks using primitive or original images of Africa and underdeveloped countries. it reflects the human desire to go back to the nature or to the unity with the nature. Finally recycled materials are commonly used In eco-look Patchwork and handmade knits are popular methods for this mode. They implicates the idea of pragmatism and simplicity in fashion. One Conclusion of the paper on eco-look ; fashion design which can be itself an import-ant environment of human beings has become a very efficient and significant tool to express the idea of ecology.

• 한국실내디자인학회논문집
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• 제20권6호
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• pp.208-217
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• 2011

Recently the importance of the elderly facilities and the eco-friendly buildings is on the rise, due to the rapid increase of the aged population and the more and more serious global environment issues, respectively. Thus, the purpose of this study is to suggest an eco-environmental improvement plan which aims to improve the quality of life for the aged in planning nursing homes hereafter by reviewing the theory of the eco-friendly architectural concept and the same conceptual design, which become the issues of late, and thus analyzing the state of applying the eco-friendly design techniques to the municipal nursing homes located in Seoul. In this study its direction of the eco-friendly design required in nursing homes was established by reviewing the characteristics which the aged and nursing homes may have, and thus extracting the elements required for the quality of life for them. The theoretical studies showed that the environment-friendly natural elements necessary for the nursing houses are light, air and plants, from which three design elements are obtained: daylighting, natural ventilation and natural landscape. In conclusion, the eco-friendly nursing homes must be planned to improve the quality of life for the aged by recognizing that the eco-friendly architecture concept, emerged as a new paradigm, is the one to be put before all the considerations for those who are sensitive to the environment, and thus reviewing the characteristics found out from them.