• Membrane and Water Treatment
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• 제6권4호
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• pp.339-349
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• 2015

Experiments were carried out using granular activated carbon (GAC) adsorption techniques to treat wastewater contaminated with organic compounds caused by diverse human activities. Two techniques were assessed: adsorbent GAC prepared from coconut shell (GACC) and adsorbent GAC from palm shell (GACP). A comparison of these two techniques was undertaken to identify ways to improve the efficiency of the treatment process. Analysis of the processed wastewater showed that with GACC the removal efficiency of biochemical oxygen demand (BOD), chemical oxygen demand (COD), turbidity, total suspended solids (TSS) and total dissolved solids (TDS) was 65, 60, 82, 82 and 8.7%, respectively, while in the case of GACP, the removal efficiency was 55, 60, 81, 91 and 22%, respectively. It can therefore be concluded that GACC is more effective than GACP for BOD removal, while GACP is better than GACC for TSS and TDS removal. It was also found that for COD and turbidity almost the same results were achieved by the two techniques. In addition, it was observed that both GACC and GACP reduced pH value to 7.9 after 24 hrs. Moreover, the optimal time period for removal of BOD and TDS was 1 hr and 3 hrs, respectively, for both techniques.

• 상하수도학회지
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• 제32권6호
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• pp.551-557
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• 2018

Since its foundation in September 1986, the Korean Society of Water and Wastewater has made a significant contribution to the water sector in Korea over the past 30 years. The 30th anniversary commemorative committee reviewed the establishment goal of the society and its development strategy for organization and present the "Future Vision of Korean Society of Water and Wastewater" for the next 30 years. The future vision of the society is defined as "Aiming for the healthy life and preservation of the environment through the development of water and wastewater technology and experience". Promotion strategies for implementing the future vision are as follows: 1. Leading water and wastewater technology, 2. Develop water and wastewater policy, 3. Strengthen water and wastewater capacity, 4. Reinforce institutional governance. The driving target to be achieved through the implementation strategy is "To lead the global standards of water and wastewater." We also presented national issue, policy issue, and technical issues in the water sector. Climate change, unified Korea, water safety, and national welfare were selected as national issues related to water and wastewater. This approach was taken from the perspective of policy consumers such as citizens, civil society, experts, and local government/industry. By presenting policy issues and technical issues that address national issues, authors have proposed a future policy direction for the Korean Water and Wastewater Society to make critical contributions to national development.

• 수도
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• 제24권4호통권85호
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• pp.69-74
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• 1997

ICI 프로그램에서 보는 바와 같이 주정부의 주된 역할은 지방의 프로그램을 지원해주는 것이다. 이 지원은 ICI 사업계획의 목적달성을 위한 정책과 규정을 수립하는 것이다. 즉, 재정적 보상, 연구, 훈련 및 기술지원 등이다. 향후 장기계획수립에 ICI보전 및 재이용 가능성을 포괄하는 수자원보전 및 재이용에 관한 내용을 포함한다. 그러나 중요한 사실은 항상 각 지방의 프로그램을 지원해 주는데 초점을 맞추는 것이어야 한다.

• 상하수도학회지
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• 제23권5호
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• pp.619-630
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• 2009

The study area investigated in this research is Hwaseong city, Gyeonggi-Do where small scale development is currently in progress. For the last three years, we carried out the environmental and ecological assessment by using data from The Ministry of Environment and Han River Basin Environmental Office. Most of development works in Hwaseong city, Gyeonggi-Do are small scale developments which are related with factory and distribution complex based on individual laws and regulations. However, environmental and ecological assessment is not being sufficiently reflected beforehand. Especially, because the development takes place mainly in the outskirts of the city, the fine forest is continuously being damaged. We analyzed changes in green zone caused by the developments. As a result, the percentage of original green zone was decreasing while the percentage of artificial green zone was increasing. We should maintain the percentage of the original green zone in order to conserve natural environment. In the past three years, the damage of the DGN (Degree of Green Naturality, 7) area that has high conservative value was little, but, there was serious damage in the area of DGN 6. In order to conserve natural environment, political and institutional investigation should be seriously carried out for mitigation of environmental and ecological damages.

• 상하수도학회지
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• 제25권4호
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• pp.535-546
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• 2011

The study area investigated in this research is Hwaseong city, Gyeonggi-Do where small scale development is currently in progress. For the last three years, we carried out the environmental and ecological assessment by using data from The Ministry of Environment and Han River Basin Environmental Office. Most of development works in Hwaseong city, Gyeonggi-Do are small scale developments which are related with factory and distribution complex based on individual laws and regulations. However, environmental and ecological assessment is not being sufficiently reflected beforehand. Especially, because the development takes place mainly in the outskirts of the city, the fine forest is continuously being damaged. We analyzed changes in green zone area caused by the developments. As a result, the percentage of original green zone was decreasing while the percentage of artificial green zone was increasing. We should maintain the percentage of the original green zone in order to conserve natural environment. In the past three years, the damage of the DGN (Degree of Green Naturality) 7 area that has high conservative value was little, but, there was serious damage in the area of DGN 6. In order to conserve natural environment, political and institutional investigation should be seriously carried out for mitigation of environmental and ecological damages.

• Environmental Engineering Research
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• 제15권2호
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• pp.105-109
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• 2010

The European Union (EU) Water Framework Directive (WFD) (2000/60/EC) was transposed into Irish law by Statutory Instrument Nos. 722 of 2003, 413 of 2005 and 218 of 2009, which set out a new strategy and process to protect and enhance Ireland's water resources and water-dependent ecosystems. The Directive requires a novel, holistic, integrated, and iterative process to address Ireland's natural waters based on a series of six-year planning cycles. Key success factors in implementing the Directive include an in-depth and balanced treatment of the ecological, economic, institutional and cultural aspects of river basin management planning. Introducing this visionary discipline for the management of sustainable water resources requires a solemn commitment to a new mindset and an overarching monitoring and management regime which hitherto has never been attempted in Ireland. The WFD must be implemented in conjunction with a myriad of complimentary directives and associated legislation, addressing such key related topics as flood/drought management, biodiversity protection, land use planning, and water/wastewater and diffuse pollution engineering and regulation. The critical steps identified for river basin management planning under the WFD include: 1) characterization and classification of water bodies (i.e., how healthy are Irish waters?), 2) definition of significant water pressures (e.g., agriculture, forestry, septic tanks), 3) enhancement of measures for designated protected areas, 4) establishment of objectives for all surface and ground waters, and 5) integrating these critical steps into a comprehensive and coherent river basin management plan and associated programme of measures. A parallel WFD implementation programme critically depends on an effective environmental management system (EMS) approach with a plan-do-check-act cycle applied to each of the evolving six-year plans. The proactive involvement of stakeholders and the general public is a key element of this EMS approach.

• 대한환경공학회지
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• 제36권12호
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• pp.803-812
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• 2014

본 연구는 국내에서 2005년부터 산업통상자원부에서 산업단지의 환경을 개선하기 위하여 추진하여 온 생태산업단지 구축사업의 전략과 경제적/환경적 성과를 정량적으로 평가하고, 향후 발전방향에 대하여 고찰하였다. 우선 산업공생에 기반을 둔 생태산업단지의 개념을 소개하고, 국내 생태산업단지의 추진배경과 사업수행절차에 대하여 설명하였다. 또한 산업공생 사업의 전후의 경제적, 환경적 성과평가 방법론을 제안하고, 사업화된 과제를 대상으로 성과평가를 실시하였다. 우리나라 생태산업단지 구축사업은 한국산업단지공단이 주관하여 현재 전국에 9개 지역사업단을 운영 중에 있다. 2005년부터 2013년까지 449개의 아이템을 발굴하여 296개가 선정되어 수행되었으며, 이 중 244개의 과제가 완료되었다. 완료된 과제 중 118개의 과제가 사업화되어 사업화 성공률이 약 48%로 나타났다. 사업화된 과제를 통하여 약 3,111.1억 원/년의 경제적 효과와 폐기물/부산물 828,112.6톤/년, 용수/폐수 215,517.0톤/년, 에너지 250,474.5 toe/년, 온실가스 1,107,189.1 $tCO_2$/년의 사용 및 배출을 저감하는 환경적 효과를 얻었다. 이상의 결과로부터 산업공생 원리를 이용하한 생태산업단지 구축사업은 산업단지의 생태효율성 향상으로 환경과 경제를 조화시킬 수 있음을 실질적으로 확인시켜주었다. 하지만, 관계 부처 간 협조와 협력의 부재 및 법과 제도적 한계, 지방자치단체의 요구 증대 및 기업체의 자금문제 등의 장애요인이 존재한다. 따라서 생태산업단지 구축사업이 지속가능한 산업단지 모델로 전국적으로 확대되고, 산업단지 경쟁력 강화와 환경관리를 위한 툴로 발전시키기 위해서는 현재의 장애요인을 해소하기 위한 범부처적, 학제적 접근이 필요함을 보여주었다.