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미생물 호흡률 측정에 의한 관거시스템 유형별 하수의 기질 분율 평가
박종부(Jong Bu Park),허형우(Hyung Woo Hur),강호(Ho Kang),장성언(Sung Oun Chang) 大韓環境工學會 2009 대한환경공학회지 Vol.31 No.8
산소소비속도 측정에 의한 미생물 호흡률 분석방법에 의해 하수의 유기물질과 미생물 분율을 평가하였다. 하수의 유기물과 미생물 분율은 생물학적 공정의 모델링을 위한 중요한 기초자료이다. 본 연구에서 하수의 유기물 분율을 측정한 결과, 미생물에 의해 분해가 빠른 유기물, 분해가 느린 유기물, 분해되지 않는 용존성 유기물, 분해되지 않는 고형 유기물과 종속영양미생물의 분율은 각각 26.6%, 41.5%, 8.5%, 14.7% 및 8.7%였다. 또한, 질소 분율을 측정한 결과, 질산성 질소, 암모니아성 질소, 용존성 비분해 유기성 질소, 용존성 분해 유기성 질소 및 분해가 느린 유기성 질소의 분율은 각각 약 3.7%, 64.9%, 4.7%, 9.4% 및 17.4%였다. Respirometric analysis of domestic sewage by measuring oxygen uptake rate(OUR) was carried out for the experimental assessment of the organic and biomass fractions. The data of the organic and biomass fractions in sewage is essential for the activated sludge model to optimize the biological treatment plant. As a result of this study, the fractions of readily biodegradable substrate(S(S)), slowly biodegradable substrate(X(S)), inert soluble substrate(S(I)), inert particular substrate(X(I)) and heterotrophic biomass(X(HAB)) were about 26.6%, 41.5%, 8.5%, 14.7% and 8.7% on the basis of chemical oxygen demand(COD(Cr)), respectively. And the fractions of nitrogen were also studied. The fractions of soluble nitrate nitrogen(S(NO)), soluble ammonia nitrogen(SNH), soluble nonbiodegradable organic nitrogen(S(NI)), soluble biodegradable organic nitrogen(S(ND)) and slowly biodegradable organic nitrogen(X(ND)) were about 3.7%, 64.9%, 4.7%, 9.4% and 17.4%, respectively.
연구논문 : 환경평가제도개선에 관한 연구 -국내외 환경평가제도의 비교 고찰-
김임순 ( Im Soon Kim ),송철우 ( Chul Woo Song ),한상욱 ( Sang Wook Han ),장성언 ( Sung Oun Chang ),신강수 ( Kang Soo Shin ),유헌석 ( Heon Seok Yoo ),정종관 ( Jong Gwan Jung ) 한국환경영향평가학회 2011 환경영향평가 Vol.20 No.3
Over the past three decades, Korea has undertaken a series of reforms to improve development policy, plans and programs, including measures to mainstream the environment across all major sectors. Despite of these efforts, there has been still the lack of capacity to fully assess the environmental impacts as well as sustainable implications of development projects and strategies. At the level of regional and sectoral development plans, the development of strategic environmental assessment SEA systems continues to remain at a relatively early stage in the region with fewer examples of fully operational processes or effective practice. This study shows a further information to our understanding of the EIA and SEA systems and their implementation in Korea. It affords a number of insights into strengths and weaknesses of the current action in different countries, and identifies an agenda of needs and options for capacity building for implementing the EIA enactment.
김임순 ( Im Soon Kim ),김윤신 ( Yoon Shin Kim ),서용석 ( Yong Seok Seo ),장성언 ( Sung Oun Chang ),최원욱 ( Won Wook Choi ),한상욱 ( Sang Wook Han ) 한국환경영향평가학회 2003 환경영향평가 Vol.12 No.3
Environmental Impact Assessment(EIA) in Korea has been used to improve environmental conservation and decision-making since environmental impact statement(E1S) was introduced in 1981 with the promulgation of the Environmental Preservation Act in 1977, which replaced the Pollution Control Act legislated in 1963. Together with a rapid growth of environmental perception as well as the diversification of development activities, however, it has recently bring about a strong demand for a new assessment process related to the strategic level of policies, plan, programs. In order to overcome such a limit in EIA system, Prior Environmental Review System(PERS) was introduced for assessment of administrative plans manly concerned with development projects in 1993. In 1999, the regulations for PERS have been established by an amendment of the Basic Environmental Policy Act. Therefore the foundation of EIA system to integrate environmental concerns in planning processes and project works has been reformed. However the results of the execution of PERS were somewhat insufficient due to the institutional and technical matters. As the world`s attention turns to sustainability and the considerations of cumulative effects, the concept of strategic environmental assessment(SEA) has taken on more significance and urgency and increasing number of countries and international organizations now undertake some form of SEA. The term SEA, however, is variously defined and understood, generally it means a formal process of systematic analysis of the environmental effects of development policies, plans, programmes and other proposed strategic actions. This process extends the aims and principles of EIA upstream in the decision-making process, beyond the project level and when major alternatives are still open. In this paper, we are discussing the significance of SEA and its relevance to EIA and the international trends and institutionalization of SEA. In conclusion we are discussing the comprehensive developing plan for SEA in Korea, then proposing a plan to make institutional arrangements for its application.