• 수산해양교육연구
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• 제27권2호
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• pp.516-525
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• 2015

In this study, Life Cycle Assessment(LCA) was applied to the production processes of waste cooking oil recycling products. Recycling products as defined in the Law of Saving of Resources and Recycling Promotion are biodiesel and soap. Weighting result of biodiesel production process showed that the most significant impact potential was abiotic resource depletion(84.17%) followed by global warming(13.93%). In the case of the soap, the most significant impact potential was also abiotic resource depletion(58.59%) followed by global warming(33.71%). In terms of the whole system of the biodiesel production process, methanol showed the largest environmental impact potential(87.35%). While in the case of the soap, sodium chloride showed the largest environmental impact potential(99.99%). This study suggests that there should be improvement of the methanol recovery system in the biodiesel production process and also appropriate use of the major environmental impact materials in both processes.

• 수산해양기술연구
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• 제60권3호
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• pp.269-276
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• 2024

In response to the global interest and efforts towards reducing plastic use and promoting resource recycling, there is a growing need to establish methods for recycling discarded fishing gear. In Korea, various technologies are being developed to recycle discarded fishing gear, but significant technical and policy challenges still remain. In particular, biodegradable gill nets require a pre-treatment process to separate biodegradable materials from other substances and to remove salt before recycling. Therefore, this study aims to develop a pre-treatment device for recycling biodegradable gill nets and to evaluate the feasibility of recycling them.

• 한국산업정보학회논문지
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• 제27권4호
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• pp.105-114
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• 2022

국민 소득수준이 향상되고 주택의 도시화 및 경제속도가 빠르게 진행됨에 따라 주거용 생활 폐기물과 음식물류 폐기물이 급격하게 증가하고 있다. 우리나라에서는 1991년 개정된 "폐기물관리법"을 기초로 1995년 생활 폐기물 종량제가 시행되었다. 하지만 시행 이후에도 여전히 음식물류 폐기물의 악취 및 이를 위한 신속한 처리 과정이 사회적 문제로 지속되고 있다. 이러한 이유로 음식 쓰레기 재활용사업이 주목받고 있으며, 음식물류 폐기물의 사료화, 퇴비화, 기타자원화 등 자원 재활용하는 역할에 관하여 본 논문에서는 자원화 과정의 비효율성을 줄이기 위한 음식물류 폐기물 재활용 시(時) 사업장의 경영성과를 향상시킬 요인이 무엇인가에 연구하였으며, 2020년 말 기준 국내 자원 재활용사업을 영위 중인 사업장 394개(공공 238개, 민간 156개) 중(中) 시설물 자료가 미흡한 업체를 제외, 전국 33개 시설 사업장의 투입물과 산출물의 관계를 "자료포락분석"(DEA:Data Envelopment Analysis)을 통해 조사하고, 음식물류 폐기물 시설의 상대적 경영성과에 중요한 역할이 무엇인가에 대하여 연구하였다. 음식물류 폐기물 재활용 사업을 영위 중인 업체의 업력, 시설용량, 자본금, 기계장치가 매출액에 미치는 영향이 무엇인가를 가설로 검증한다.

• 에너지공학
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• 제28권1호
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• pp.45-48
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• 2019

Currently, the global atmosphere around the world is altering at a very rapid pace. Among those changes, some are beneficial, but most of the changes are lead to destruction to our planet. The area of environmental science is a significant resource for learning more about these changes. Due to the urbanization, the human population is increasing, natural resources becoming very limited. To solve the limited resources issues, recycling is absolutely an alternative source for the new demands and limitations. Recycling education is very important to raise awareness among students and their communities about the need for recycling and what materials are recyclable locally. In this paper, we reported the role of sustainability science and technology and the impact of recycling research education in the middle schools, both in developing countries and Asian countries and also we included the brief data of global recycling of waste.

• 한국암석학회:학술대회논문집
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• 한국암석회.한국광물학회 2009년도 공동학술발표회 논문집
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• pp.20-21
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• 2009

• 자원리싸이클링
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• 제25권6호
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• pp.82-91
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• 2016

2016년 5월, 제19대의 마지막 정기 국회에서 "자원순환기본법"이 제정되었다. 본 법은 향후 우리나라의 자원순환 정책의 큰 방향성을 제시하여야 할 최상위의 기본법이므로 그 파급력을 고려하였을 때 법의 취지, 주요 내용, 정책적 방향성을 심도있게 분석하고 이해할 필요가 있다. 특히, 2018년 1월부터 본 법이 시행될 예정이므로 이 법의 원래 취지인 자원순환사회로의 전환을 효율적으로 지원할 수 있도록 법률 체계 및 내용을 제대로 갖추고 있는지 살펴볼 필요가 있다. 또한, 하위법령 제정 시 그 내용이 편향되지 않도록 이해관계자들의 적극적 참여를 통한 심도있는 협의가 이루어져야 할 것이며, 조항별 구체화된 법안들이 도출되어야 할 것이다. 따라서 본 연구에서는 자원순환기본법의 체계 및 주요내용 검토를 통해 문제점을 파악하고, 법률의 실효성을 극대화하기 위해 하위법령 제정과정에서의 주요 조항별 논점과 구체적 시행방향에 대해 검토, 제시하고자 한다.

• 청정기술
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• 제18권1호
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• pp.111-119
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• 2012

오늘날 기업들에서는 폐기물을 감량화, 재활용, 재이용하기 위해 노력하고 있다. 폐기물이 재활용되고 있지만, 많은 폐기물이 소각 또는 매립되고 있다. 이러한 문제를 해결하기 위하여, 산업단지를 중심으로 폐기물을 재활용하기 위한 다양한 사업이 진행 중이다. 하지만, 폐기물 재활용에 대한 정보의 부족으로, 재활용가능 폐기물은 여전히 소각되거나 매립되고 있다. 이러한 배경 하에, 본 연구는 기업의 폐기물을 원료로 재활용하는 폐기물 자원순환에 의해 저감되는 탄소배출량과 경제성 평가방법을 제시하고자 한다. 그 평가방법을 적용하여 폐합성수지와 폐유기용제의 자원순환사례를 평가하였다. 재활용과 소각 측면에서 환경적 및 경제적인 측면을 분석하였다. 폐플라스틱을 원료로 재이용함으로써, 탄소배출량은 2009년에 1,0705톤, 2010년에 1,234톤이 저감되었으며, 비용은 2009년에 6.57억원, 2010년에 7.55억원이 저감되었다. 폐유기용제를 재활용 할 시에는 2010년에 7.3톤, 2011년 5.6톤의 탄소배출량이 저감되었으며, 비용은 2010년에 1,591만원, 2011년에 1,218만원이 저감되는 것으로 나타났다.

• 한국환경과학회지
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• 제12권3호
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• pp.359-366
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• 2003

Ecological society and energy conservative systems has become a subject of world wide attention. To examine the technologies of such systems as resource recycling society, this study is proposed for using rainwater as energy source and water resources in urban area. Useful informations for planning of utilizing rainfall as energy source, water resources, emergency water and controlling flood are discussed with model systems in urban area. It is calculated that the rate of utilizing rainwater, amounts of utilizing rainwater, substitution rate of supply water, amounts of overflow rainwater according to rain storage tank volume. By applying the past weather data, The optimum volume of rain water storage was calculated as 200m$^3$ which mean no benefits according to the increase of storage tank volumes. For optimum planing and control method at the model system, several running method of rainwater storage tank was calculated. The optimum operating method was the using weather data as 3hours weather forecast.

• 수산경영론집
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• 제51권2호
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• pp.71-87
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• 2020

Oysters are the most abundantly harvested type of shellfish in Korea. As export of this marine product increases, oysters have greatly contributed to an increase in fishing income. As the oyster aquaculture industry has rapidly grown since the late 1990s, issues of oyster-shell processing that occur in production processes have re-emerged as important topics in the oyster industry. The amount of oyster shells harvested in 2019 is estimated to be approximately 300,000 tons. With reductions in demand for pyrolytic fertilizer and feed, which are currently the greatest sources of demand, unprocessed shell quantities have doubled compared to 2018, causing them to be an issue once more. Such oyster-shell processing also incurs great costs, and a total of forty-six billion three hundred fifty million Korean won (46,350,000,000 KRW) has been provided from 2009 to 2020 for the use of oyster shells as a resource. According to current Korean laws, oyster shells are considered to be industrial waste if more than 300 kilograms are sent out in a day. Collection and processing must be conducted by a waste-consignment company. Consequently, there are many limitations to the use of oyster shells in Korea as a resource. However, in Japan, only oyster-shell waste is regulated by waste-processing As a result, local governments may apply exceptions when utilized as organic matter. Consequently, in Japan, oyster shells are being used as resources in more diverse fields than in Korea. This study observes the conditions and problems of oyster-shell processing in Korea and attempts to find new domestic oyster-shell resource solutions in light of Japan's recycling practices.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.247-250
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• 2009

Awareness of resource conservation and pollution prevention has been continually increasing. The proven benefits from CFRP's unique combination of light weight and high strength compare to conventional material is well suited for minimizing fuel consumption during vehicle in particular rail operation. Responding the awareness, this work intends to study CFRP's recycling method that is not only technical performance but also environmental view point. According to prior work of technical performance test, this work aims at quantifying the footprint of energy and GHG derived from the two appreciated performance of pyrolysis and acids recycling methods. The streamline LCA is the concept for systematic assessment. The boundary is scoped at the recycling activity, consequently, the data in and out from the specific target activity are obtained under the gate to gate data collection. Its function is recovery carbon fiber. To count and compare function, functional unit is set at 60% of recycling rate. Korea database is mainly source for acquiring the footprint of both. The numerical results presented that the energy footprint of acids and pyrolysis is 164.95 and 1,199.88 MJ-eq., respectively. Meantime, the GHG footprint of is 1,196.22 and 5,916.08 g CO2 eq. for acids and pyrolysis. In summary, the acids recycling method is, in regarding the environmental performance, better than pyrolysis recycling method.