• Proceedings of the Membrane Society of Korea Conference
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• 1992.10a
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• pp.74-75
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• 1992

침출수를 처리하는 방법은 여러가지가 있으나 주로 생물학적 처리방법과 물리화학적 처리 방법으로 구분할수 있다. 특히 침출수는 매립물의 종류에 따라 침출수 수질이 상당히 차이가 나는데 도시쓰레기 매립에 의한 일반폐기물 침출수는 그 처리 및 관리가 용이하나 특정 폐기물 침출수는 염의 농도가 높고 중금속을 다량 함유하고 있어 1차 처리후에도 방류가 곤란하다. 이 경우는 특정 폐기물 매립지인 H매립장의 침출수에 대하여 Pilot Test를 통한 적정 Process 경제성을 검토한 것이다.

• 한국신재생에너지학회:학술대회논문집
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• 2009.11a
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• pp.310-312
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• 2009

일반적으로 초산을 제조하기 위해 사용되는 CO를 생산하기 위하여 납사(Naptha)를 가스화하는 부분산화공정을 이용하거나 촉매를 사용한 Steam reforming공정을 적용하고 있다. 가스화 및 Steam reforming의 원료가 되는 납사는 고가이므로 폐기물의 가스화를 통해 발생하는 합성가스 내의 CO를 활용하여 초산제조의 원료로 사용할 수 있다면 초산제조 공정에서의 CO 제조 비용 절감 및 폐기물 자원화의 효과를 동시에 달성할 수 있을 것으로 생각된다. 본 연구에서는 폐기물의 가스화를 통해 발생한 합성가스 내의 CO에 대한 초산제조의 원료로의 적용가능성을 검토하기 위하여 폐기물의 종류 및 성상에 따른 CO 발생량을 비교하였다.

• Magazine of the Korea Concrete Institute
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• v.10 no.5
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• pp.217-225
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• 1998

분쇄한 FRP(Fiver-Reinforced Plastics) 폐기물을 사용한 폴리머 모르타르의 물성에 고나하여 조사하였다. 분쇄한 FRP 폐기물을 시멘트 모르타르의 세골재로 재활용하기 위하여 세골재에 대하여 0~50wt% 치환.사용하였고, FRP 폐기물의 사용으로 나타나는 강도 저하현상을 보완하기 위하여 3종류 폴리머 혼화제의 첨가량을 변화시켜 각종 공시체를 제작하였다. 폴리머 혼화제로서는 styrene-bytadiene rubber(SBR) 라텍스, polyacrylic ester(PAE) 에멀젼 및 ethylene-vinyl acetate(EVA)에멀젼을 사용하였다. 분쇄한 FRP 폐기물을 사용한 시멘트 모르타르에 폴리머 혼화제를 첨가하여 만든 폴리머 시멘트 모르타르는 폴리머 혼화제를 첨가하지 않은 모르타르보다 압축 및 휨강도가 크게 증가하였다. 폴리머 시멘트비 10wt%에서 세골재 대용으로 분쇄한 FRP 폐기물의 적정 치환량은 20wt%로 나타났다. 8$0^{\circ}C$에서 가열양생하여 제조한 폴리머 시멘트 모르타르는 폴리머 시멘트비 10wt%이하에서 표준양생한 모르타르보다 강도가 저하되었다. 폴리머 시멘트 포르타르의 흡수율은 폴리머 시멘트비가 증가함에 따라 크게 감소하였다.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.1
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• pp.219-230
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• 2023

Marine waste is classified according to its location into coastal waste, floating waste, and submerged waste. As awareness of environmental issues increases, research on marine submerged waste in addition to visible trash is needed. In Korea, which is surrounded by the sea on three sides, this is a study on the distribution of marine sedimentary waste by type in the West Sea of Korea. Through the study, waste synthetic resin, scrap metal, waste tires, and others appeared in the order of large amounts. As a result showing the seriousness of waste synthetic resin among sediments deposited in the West Sea, it is expected to have a huge impact not only on the marine ecosystem but also on our lives in the near future. Through this study, it is judged that it will be helpful for future collection activities by recognizing marine submerged waste that was not known because it was invisible.

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2003.11a
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• pp.556-561
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• 2003

The quantity of the gaseous radioactive waste generated from HANARO operation for the years from 1996 to 2002 has been investigated. The amounts of Ar-41, H-3 and I-131 exhausted to the environment were 6.33E13 Bq, 5.10E12 Bq and 3.26EB Bq, respectively.

• Nuclear Engineering and Technology
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• v.27 no.2
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• pp.260-268
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• 1995

국내 원자력발전소의 방사성폐기물 발생량은 초고압 압축, 농축폐액 건조, 페수지 건조 등의 폐기물감용을 위한 운영계획이 수립되고 또한 일부 원자력발전소에서는 1995년부터 운영이 시작될 예정이어서 감소가 예상되고 있다. 원자력발전소로부터 방사성폐기물의 누적량은 2035년까지 운영자의 폐기물 감용 계획을 고려한다면 141,920 드럼으로 예상할 수 있고, 이에 상응하는 방사능량은 반감기가 한달 이상인 30개 핵종에 대하여 방사성 붕괴를 무시할 때 49,390 Ci였다. 특히 원자력환경관리센터에서 수행한 개념설계에 따른 1차 건설예정의 지하 처분동굴의 적재량인 약 10만 드럼은 2014년까지 누적량으로 채울 수 있고 이때 처분장의 장기적 성능평가에 주요 고려 대상인 반감기가 5년 이상의 14개 핵종에 대한누적 방사능량은 약 13,577 Ci였다. 이 예측된 발생량과 재고량은 처분장 장기적 성능 및 안전성 평가에 중요한 기초자료가 될 것이다.

• Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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• v.15 no.3
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• pp.257-264
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• 2017

For the safe disposal of intermediate level radioactive waste according to the Nuclear Safety and Security Commission's notice and KORAD's management plan for low and intermediate level radioactive waste, the disposal concentration limit was derived based on the IAEA methodology. The evaluation of the derived disposal concentration limit revealed that it is not suitable as a practical limit for intermediate level radioactive waste. This is because the disposal concentration limit according to the IAEA methodology is derived using a single value of radioactive waste density and the disposal facility's volume. The IAEA methodology is suitable for setting the concentration limit for vault type disposal, which consists of a single type of waste, whereas an underground silo type disposal facility is composed of several types of radioactive waste, and thus the IAEA methodology has limitations in determining the disposal concentration limit. It is necessary to develop and apply an improved method to derive the disposal concentration limit for intermediate level radioactive waste by considering the radioactivity of various types of radioactive waste, the corresponding scenario evaluation results, and the regulatory limit.

• Korean Journal of Construction Engineering and Management
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• v.7 no.3 s.31
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• pp.159-168
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• 2006

In order to respond to interest and regulations in sustainable environment which is increasing, construction industry needs to establish a sustainable production system. When generation of wastes can be diminished and recycling of them raised in the construction site as a part of a sustainable production system, it might contribute to not only establishing a sustainable production system but also gaining economical profit. This study is a preliminary research for establishing a sustainable production system, which aims to identify construction waste generation patterns and factors causing construction waste generation. Case studies were implemented to investigate these patterns and factors.

• Journal of the Korean Geosynthetics Society
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• v.8 no.2
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• pp.1-9
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• 2009

When some structures are constructed over the sanitary landfill, the waste should be treated by means of replacement and other ways. Otherwise, various problems like a ground contamination, settlement, reduction of bearing capacity and others may be generated. To find out the optimal method of treatment, the properties of the ground have to be inspected. In this study, the preliminary investigation was conducted to find out the characteristic of this site which is considered as insanitary waste landfill. Furthermore, the shape and the amount of the waste was investigated by subsurface investigation like a boring and sampling methods. In addition, the degree of ground contamination and disposal method of refuse was examined.

• Resources Recycling
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• v.29 no.2
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• pp.48-54
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• 2020

Korea, one of the manufacturing-oriented countries, consumes a large amount of metals in various industrial areas, but should depend on import of most of the metals from foreign countries. Also, global metal consumption amounts are increasing in relation to those of the world's reserve and production. Some metals are limitedly produced from only several centuries, which might lead to instability of the future supply of those metals. In addition, when such metals are hazardous, those may result in various environmental troubles with contamination. To resolve those issues, the recovery and the recycling of hazardous but valuable metals in industrial waste are desirable. However, there are overwhelming numbers of the metal types, waste generators, and amounts of wastes containing the metals, so it can be troublesome even to implement a preliminary status analysis to screen proper metals, wastes with the metals, and waste producers. Therefore, this study introduces the valuable metals for Korean industry, announced by public institutions, Also, a flow chart is suggested to facilitate a preliminary status analysis, using the domestic PRTR (Pollutant Release and Transfer Register) database, to screen proper waste producers containing some of hazardous but valuable metals such as nickel, cobalt, and manganese.