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한국폐기물자원순환학회지 update

JOURNAL OF KOREA SOCIETY OF WASTE MANAGEMENT

  • : 한국폐기물자원순환학회(구 한국폐기물학회)
  • : 공학분야  >  환경공학
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  • : 2093-2332
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  • : 한국폐기물학회지(~2009)→한국폐기물자원순환학회지(2010~)

수록정보
수록범위 : 27권1호(2010)~36권7호(2019) |수록논문 수 : 991
한국폐기물자원순환학회지
36권7호(2019년 10월) 수록논문
최근 권호 논문
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KCI등재

1Pilot Plant 규모의 탄화 공정에서 에너지 효율성 평가

저자 : 이승희 ( Seung-whee Rhee )

발행기관 : 한국폐기물자원순환학회(구 한국폐기물학회) 간행물 : 한국폐기물자원순환학회지 36권 7호 발행 연도 : 2019 페이지 : pp. 583-591 (9 pages)

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As 45% of bio-solid recovered fuel (bio-SRF) materials were imported from foreign countries in 2017, it is necessary to expand the supply of bio-SRF using organic waste in Korea. To promote the supply of domestic-waste-based bio-SRF, a mixture of animal manure and biomass with low ash content was considered for use as a renewable energy source, such as carbonization residue. However, most studies on the carbonization of animal manure have been carried out on a laboratory scale, and there is little research on the energy efficiency of the carbonization process of animal manure at the pilot-plant scale. Therefore, it is necessary to evaluate factors such as mass and energy yields in the bio-SRF manufacturing process on a pilot-plant scale. In this study, swine manure and woody waste were used in the carbonization process on a pilot-plant scale to evaluate energy efficiency. In a pilot-plant scale carbonization system, the manufacturing processes consists of the drying process, crushing process, separation process, mixing process, carbonization process, and waste gas treatment process. To evaluate the energy efficiency for the carbonization processes on a pilot-plant scale, the mass yield, energy yield, and energy density of the bio-SRF manufacturing were reviewed. Of the 3,000 kg of mixed materials, 1,146 kg was recovered as carbonization residue, obtaining a mass yield of 38.2%. In addition, the energy yield of the entire process was estimated to be 73.3%, with energy density measuring at 1.92. These results indicate that the carbonization process on a pilot-plant scale is reasonably energy efficient.

KCI등재

2커피박을 이용한 바이오디젤 합성 반응에 관한 연구

저자 : 이유민 ( You Min Lee ) , 이성미 ( Seong Mi Lee ) , 김혁진 ( Hyeok Jin Kim ) , Poudel Jeeban , 오세천 ( Sea Cheon Oh )

발행기관 : 한국폐기물자원순환학회(구 한국폐기물학회) 간행물 : 한국폐기물자원순환학회지 36권 7호 발행 연도 : 2019 페이지 : pp. 592-600 (9 pages)

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While the world relies heavily on energy production using fossil fuels, the alarming impact of fossil fuel use on the environment has led to increasing research into application of alternative energy sources such as biomass. Among the various pathways of using biomass as a substitute energy source, biodiesel from transesterification of biomass has the advantage of lower net CO2, lower sulfur content, and improved biodegradation as compared to readily available diesel. However, proper selection of raw material for biodiesel production is crucial, as the unprocessed material may be contaminated. In this regard, coffee grounds, which would otherwise be discarded, make a good source of biodiesel. As of 2017, 130,000 tons of coffee grounds were produced and disposed of, except for a small amount used for fertilizer and deodorizing purposes. Our research study was conducted to investigate the characteristics of biodiesel synthesis through soxhlet extraction using coffee grounds. The optimum reaction conditions were determined by varying potassium hydroxide (KOH) and methanol (MeOH) concentrations, retention times and transesterification temperatures. In addition, from the characteristic analysis of the liquid product using GC and GC/MS analysis, 76% of biodiesel was obtained.

KCI등재

3폐타이어 열분해 공정에서 생산되는 Carbon Black의 냉각 열전달 특성에 대한 연구

저자 : 박훈채 ( Hoon Chae Park ) , 최명규 ( Myung Kyu Choi ) , 최항석 ( Hang Seok Choi )

발행기관 : 한국폐기물자원순환학회(구 한국폐기물학회) 간행물 : 한국폐기물자원순환학회지 36권 7호 발행 연도 : 2019 페이지 : pp. 601-607 (7 pages)

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In order to investigate the heat transfer of carbon black from waste tire pyrolysis, the particle cooling of carbon black was simulated using computational fluid dynamics (CFD). In the present study, the effects of cooling temperature and particle mixing were investigated. As the cooling temperature decreases, the cooling rate of carbon black increases. However, the particle mixing had a great influence on the particle-particle (wall) conductive heat transfer. The cooling rate of carbon black was more strongly influenced by particle mixing than the influence from cooling temperature. Also, during mixing cooling, the cooling efficiency according to the with or without of paddle screw was analyzed. The experimental and CFD analysis results can be further applied to the design of the screw conveyor cooler.

KCI등재

4하수슬러지의 연료개선을 위한 수열처리기법 적용 가능성 평가

저자 : 이상엽 ( Sang-yeop Lee ) , 박세원 ( Se-won Park ) , 정연욱 ( Yean-ouk Jeung ) , 한건호 ( Gun-ho Han ) , 서용칠 ( Yong-chil Seo ) , 김우현 ( Woo-hyen Kim )

발행기관 : 한국폐기물자원순환학회(구 한국폐기물학회) 간행물 : 한국폐기물자원순환학회지 36권 7호 발행 연도 : 2019 페이지 : pp. 608-616 (9 pages)

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Conventional sewage sludge is treated through incineration, landfill, and fertilization. However, interest in sludge treatment has increased due to problems with treatment costs after the generation of environmentally hazardous materials such as heavy metals, viruses, and high moisture content. Therefore, in this study, a hydrothermal treatment was applied to properly treat and use the sludge as an energy source. The reaction was carried out for 1 hour at the optimum temperature of 200℃ to reduce the moisture content of the sample, and increase the calorific value to improve the fuel quality. The improved sample was used to determine the value of the fuel by applying it to a gasification technique, which is a thermal treatment. The calorific value of syngas of sludge gasification was 1,041.57 kcal/kg, and the lower calorific value of syngas after hydrothermal treatment was 1,242.59 kcal/kg. In addition, the cold gas efficiency increased from 39.5% to 45.3%, and pollutants such as HCN, HCl, NH3, and tar decreased. As a result of the overall characteristics, the hydrothermaltreated sludge is considered to be of sufficient value as a fuel for gasification technology.

KCI등재

5폐기물의 삼성분분석방법 제정에 관한 연구

저자 : 양원석 ( Won-seok Yang ) , 권영현 ( Young-hyun Kwon ) , 최경구 ( Gyung-goo Choi ) , 이원석 ( Won-seok Lee ) , 이은송 ( Eun-song Lee ) , 김기헌 ( Ki-heon Kim )

발행기관 : 한국폐기물자원순환학회(구 한국폐기물학회) 간행물 : 한국폐기물자원순환학회지 36권 7호 발행 연도 : 2019 페이지 : pp. 617-623 (7 pages)

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A general waste composition analysis, consisting of a proximate analysis, has been presented. The definition and usage of terms were clarified, and all terms should be combined with their respective units. In this study, a proximate analysis method was applied to bottom ash, rubbers, automobile shredder residue, plastics, sewage sludge, and waste water sludge in considering the characteristics of individual waste. It has been observed that this proximate analysis method, based on the characteristics of individual waste, required drying the waste for more than 6 hr, until the moisture contents reached between 105 to 110℃ and a constant weight. It has been suggested that 2 hr of ignition at a maximum 850℃ for ash is recommended.

KCI등재

6폐기물 소각시설 비산재의 함량-용출 상관관계 도출을 통한 수은화합물 안정도 평가

저자 : 이은송 ( Eun-song Lee ) , 백승기 ( Seung-ki Back ) , 조수진 ( Soo-jin Cho ) , 김기헌 ( Ki-heon Kim ) , 서용칠 ( Yong-chill Seo )

발행기관 : 한국폐기물자원순환학회(구 한국폐기물학회) 간행물 : 한국폐기물자원순환학회지 36권 7호 발행 연도 : 2019 페이지 : pp. 624-631 (8 pages)

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This study provides the correlation between mercury (Hg) content and leachate concentration of fly ash (FA) from waste incinerators: a municipal solid waste incinerator (MSWI) and a medical waste incinerator (MWI). In addition, the stability and leaching characteristics of Hg were estimated to develop stabilization treatment technology for hazardous waste having the leachate Hg concentration as 0.005 mg-Hg/L based on the waste management law in Korea. As a result of a sequential extraction procedure consists of five-steps, FA (MSWI) and FA (MWI) contained mainly unstable mercury compounds with high solubility or sensitive to changes in pH. The major constituents were found to be Ca, Fe and Si by the x-ray fluorescence analysis. The high alkalinity ([Ca]/[Si]) could affect the conversion of Hg compounds to amphoteric ions, then could contribute to the increasing of F3 fraction from the sequential extraction procedure. Fe could affect oxidation of Hg and increasing the production of HgO. These factors could affect the increase in mobility of Hg compounds in fly ash; spraying lime (Ca(OH2) in air pollution control devices also could affect the high mobility of Hg compounds. Therefore, the development of control technology (e.g. stabilization) of discharged fly ash by considering the chemical properties and stability.

KCI등재

7다양한 자원을 활용한 가스화 특성 연구 : 폐기물 가스화 적용 가능성 평가

저자 : 박세원 ( Se-won Park ) , 이상엽 ( Sang-yeop Lee ) , 정연욱 ( Yean-ouk Jeong ) , 한건호 ( Gun-ho Han ) , 서용칠 ( Yong-chil Seo )

발행기관 : 한국폐기물자원순환학회(구 한국폐기물학회) 간행물 : 한국폐기물자원순환학회지 36권 7호 발행 연도 : 2019 페이지 : pp. 632-643 (12 pages)

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In this study, the gasification process was operated using various feedstocks, including biomass, waste, and fossil fuel. Sawdust, waste solid refuse fuel, and coal were selected as the representative for the feedstocks. In the case of waste fuel, it must be utilized as a new and renewable energy, rather than a disposed target. A comparative study on feedstock type was conducted, and the feedstocks were applied to a lab-scale downdraft fixed bed gasification process. The experimental conditions were maintained for the assessment of the gasification process's applicability, and the deduction of the optimum equivalent ratio of feedstock. The results of the study revealed that the waste solid refuse fuel was more applicable to the gasification process than coal and sawdust, with an optimal equivalent ratio of 0.4 in all feedstocks, and the highest cold gas and carbon conversion efficiency. Detailed results showed that cold gas efficiency was 50.94%, and carbon conversion ratio was 54.66% from waste gasification. In further studies or researches, gasification technologies using waste, biomass or coal were continuously conducted for development of high efficient technology. This study could potentially be used as reference data for gasification operations at commercial plants.

KCI등재

8대기오염물질 배출원 추적 가능성 평가 연구 : 연소기관(외연기관/내연기관)에 따른 이산화탄소 동위원소비 특성비교

저자 : 유흥민 ( Heung-min Yoo ) , 정택호 ( Taek Ho Chung ) , 이상엽 ( Sang-yeop Lee ) , 박세원 ( Se-won Park ) , 서용칠 ( Yong-chil Seo )

발행기관 : 한국폐기물자원순환학회(구 한국폐기물학회) 간행물 : 한국폐기물자원순환학회지 36권 7호 발행 연도 : 2019 페이지 : pp. 644-651 (8 pages)

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There are many issues related with environment in the world. As time goes by, it would be main problems for present generations in the near future. Especially, the problems for air pollutant including particulate matter (PM) need to be resolved among locals or nations. In order to develop the renewable energy sources sustainably, the facility operators should prove the harmlessness for environments, such as atmosphere, water, and health risk. In Korea, the government is faced with these problems. Especially, local citizens have been demanding suspension of operating and using the fluffsolid refused fuel (SRF) in combined heat and power plants. According to this problem, the government has announced the 4th master plan for renewable energy in Korea, one of the main contents is to decrease supplement proportion of the 'waste to energy' part from approximately 68 % to 29 %. However, this master plan could cause 'combustible waste congestion' because the balance between supply and demand was not considered. Thus, the efficient method to resolve should be developed, while considering the balance. To solve these issues, many researchers have been suggesting and researching to establish a tracking technology on air pollutant sources. It may serve an appropriate solution to us in the near future, if it can identify the air pollutant sources among variable sources, such as combined heat and power plant, a lot of vehicles, and another sources. In this study, the carbon isotope was used to identify sources among SRF, gasoline, diesel and motorcycles with vehicles in order to establish the Korean database of exhausted gas from various engines. In the case of SRF, gasoline, and diesel, the outcome has been revealed as the average of carbon isotope -26.814‰, - 26.949‰, and -28.298‰ respectively. As a result, the carbon isotope of area located in the near plant might expect to be in the range from -26.814‰ to -25.446‰, and that in the urban might expect to be about -30‰.

KCI등재

9분배계수를 이용한 인위적인 시설에서 수은 오염폐기물 유출량 산정

저자 : 성진호 ( Jin-ho Sung ) , 조수진 ( Su-jin Cho ) , 이은송 ( Eun-song Lee ) , 이주찬 ( Joo-chan Lee ) , 김정훈 ( Jeong-hun Kim ) , 엄남일 ( Nam-il Um ) , 김우일 ( Woo-il Kim ) , 김기헌 ( Ki-heon Kim ) , 서용칠 ( Yong-chil Seo )

발행기관 : 한국폐기물자원순환학회(구 한국폐기물학회) 간행물 : 한국폐기물자원순환학회지 36권 7호 발행 연도 : 2019 페이지 : pp. 652-664 (13 pages)

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This paper addresses the management of mercury released from anthropogenic sources in South Korea. Based on previous studies, mercury-contaminated waste from 2011 to 2030 was estimated. During that period, mercury release into anthropogenic sources increased from an estimated 54 to 88 tons. The source of the mercury was primarily nonferrous metal smelting facilities. The estimates did not include reuse of byproducts such as cement production facilities and sewage sludge incineration. Excluding those byproducts, mercury releases from anthropogenic sources increased from an estimated 41 to 71 tons during the same period. Mercury released from nonferrous metal smelting facilities was about 88% of South Korea. The generation of mercury-contaminated waste was calculated using mercury and the mercury byproducts. Mercury-contaminated waste from anthropogenic sources was estimated to increase from 11,700 to 12,800 thousand tons (from 2011 to 2030). The mercury-contaminated waste was released by fly ash from coal combustion part. The management of mercury releases and the treatment of sludge from nonferrous metal smelting facilities is important. In addition, the treatment of fly ash from coal combustion waste is important for reducing and managing mercurycontaminated waste.

KCI등재

10철강슬래그를 이용한 가스상 원소수은의 산화특성 연구

저자 : 이주찬 ( Joo-chan Lee ) , 성진호 ( Jin-ho Sung ) , 이은송 ( Eun-song Lee ) , 김정훈 ( Jeong-hun Kim ) , 조수진 ( Su-jin Jo ) , 서용칠 ( Yong-chil Seo )

발행기관 : 한국폐기물자원순환학회(구 한국폐기물학회) 간행물 : 한국폐기물자원순환학회지 36권 7호 발행 연도 : 2019 페이지 : pp. 665-672 (8 pages)

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The steel industry generally has been consuming a significant amount of raw materials and energy to manufacture steel. However, the discharge of various types of byproducts and waste were approximately 50%. In the case of iron manufacturing, many byproducts and wastes are generated from complicated production processes involving raw materials, rolled steel, and stainless steel. While the production of steel slag is increasing, the blast furnace and steel slag discharged from steel facilities are only partially recycled for use in low-value road aggregate and cement materials for reuse in the cement and iron facility processes. It is necessary to reduce the production of iron waste and thus reduce the cost of waste disposal through recycling while preventing environmental pollution. Furthermore, it is important to recycle steel slag produced in industrial activities and develop ways to extend recycling methods. In the previous study, the oxidation characteristics of elemental mercury were identified using steel slag. Previous research has found that mercury control efficiency is approximately 50% in domestic steel facilities and that mercury is oxidized by fly ash and steel oxide. In this study, experiments were performed at room temperature (100℃ and 200℃) for each air and syngas. The oxidation reaction of elemental mercury using was estimated using 1 mm, 2.36 mm, and 4.75 mm steel slag samples. Oxidation reactivity was approximately two times higher in the oxidation reaction at 100℃ and 200℃ than at room temperature. There was a slight variation in the oxidation reaction at 100℃ to 200℃. The level of oxidation reaction was not significant, regardless of the temperature and size of the samples. However, oxidation reactivity experienced the highest values under syngas conditions.

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1연안해역에서 석유오염물질의 세균학적 분해에 관한 연구

(2006)홍길동 외 1명심리학41회 피인용

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2미국의 비트코인 규제

(2006)홍길동심리학41회 피인용

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2미국의 비트코인 규제

(2006)홍길동41회 피인용

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고려대학교 서울대학교 서울과학기술대학교(구 서울산업대학교) 한국환경정책평가연구원 환경부
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