• Title, Summary, Keyword: Recycle

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A Study on the Aesthetic Characteristics of Recycle Fashion (재활용 패션의 미적 특성 연구)

  • Kim, Sae-Bom;Lee, Kyoung-Hee
    • Fashion & Textile Research Journal
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    • v.10 no.4
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    • pp.436-444
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    • 2008
  • Recycle fashion is suggested to the suitable alternative of the environmental problem and the exhaustion of natural resources. The purpose of this study is focused on trying to comprehend between design characteristics and aesthetic values of recycle fashion design and those from fashion brands, fashion designers, and the public. For such purpose, 1553 photos of recycle fashion design which appeared in web-site, newspaper, fashion magazines between 2002 and 2007 were analyzed. Method of analysis did content analysis. The results of the research can be summarized as follows. First, design characteristics of recycle fashion were expressed by Junk Recycle Look, Vintage Recycle Look, Contemporary Recycle Look, Artisanal Recycle Look. Second, the expression methods of recycle fashion were presented reuse, reform, and regeneration. Third, aesthetic values of recycle fashion can be explained by the promotion of environment, the variableness, and the deconstruction.

Nitrogen and Phosphorus Removal from Domestic Wastewater by MLE Process Combined with Aluminum Corrosion Process (알루미늄 부식 반응조를 조합한 MLE공정에서 하수의 질소와 인 제거)

  • Park, Sang-Ill;Choi, Hyung-Il;Cheong, Kyung-Hoon;Park, De-Hoon
    • Journal of Environmental Science International
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    • v.22 no.11
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    • pp.1383-1388
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    • 2013
  • The pilot plant experiment was performed to investigate phosphorus and nitrogen removal from domestic wastewater by MLE process combined with aluminum corrosion reactor. When operating 0.5Q and 1Q to internal recycle and sludge recycle in the MLE process, the effluent $COD_{Mn}$ concentration of internal recycle 0.5Q were higher than internal recycle 1Q, the removal efficiency rates of $NH_3$-N in the internal recycle 0.5Q were was higher than internal recycle 1Q. Denitrification rates were about 86.8% in internal recycle and sludge recycle 0.5Q. When operating 0.5Q to internal recycle and sludge recycle in the MLE process, the removal efficiency rates of total nitrogen was the highest. The removal efficiency rates of total phosphorus was about 91.5% in the aluminum corrosion reactor.

Effects of intermittent effluent recycling on the performance of UASB process (간헐적인 유출수 반송이 UASB 반응조 운전효율에 미치는 영향)

  • 이헌모;양병수
    • Journal of Environmental Science International
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    • v.2 no.4
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    • pp.317-324
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    • 1993
  • Effluent recycling effect on UASB reactor performances is known as an important operational factor. In the present study, the possibility of intermittent recycle in UASB process for saving the power consumption was examined at different organic loading and various operational modes in recycle time period. The organic removal efficiencies of the reactors operated with the intermittent effluent recycle were considerably higher compared to those without the effluent recycle. In the intermittent recycle mode, the organic removal efficiencies slightly decreased as the non-recycle time period in the operational mode increased. Proper ratio of recycle and non-recycle time period in the mode seemed to be required to prevent the produced biogas from accumulation in the sludge bed, which caused dead zone in the reactor and sludge loss when the gas was escaped from the bed at the certain pressure.

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New Recycle Economic Theory Direct Technology Innovation and the Sustainable Development of Beijing

  • Jisong, Wu
    • Proceedings of the Korea Technology Innovation Society Conference
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    • pp.103-116
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    • 2006
  • The recycle economy is the first stage of knowledge economy. In March 2005, the author attended the forum of 'Festival of Thinkers' in the capital of United Arab Emirates, Abu Dhabi. Through five day' discussing with 10 Nobel Prize winners and 18 thinkers from five continents, the conception of Recycle Economy is regulated. The former principle of '3R' in clean production has been expanded to '5R' in new recycle economy, adding concept of 'rethink' and 'repair' to the 'reduce, reuse and recycle' This article makes a full exposition to the origin, contents and its innovation to the classical western economics of the new recycle economics. Before the 2008 Beijing Olympics, the article discusses the application of new recycle economy in terms of promoting the ability of national innovation system and independent innovation, city construction and the industry innovation concerning Beijing's features.

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Characteristics of Organics and Nitrogen Removal with the Recycle Ratio in Anoxic / Oxic Packed Bed Process (충전탑형 무산소/호기 공정에서 반송비에 따른 유기물 및 질소 제거 특성)

  • 선용호
    • Journal of Environmental Science International
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    • v.11 no.12
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    • pp.1261-1265
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    • 2002
  • This study was focused on the investigation of the characteristics of organics and nitrogen removal with the recycle ratio in anoxic/oxic(A/O) packed bed process that consisted of the anoxic reactor and the aerobic reactor. As increasing the recycle ratio by 0.5, 1.0, 2.0, the COD removal efficiency increased by 94.0%, 98.5%, 98.8% respectively. The aerobic reactor showed the perfect nitrification efficiency by 98.5%, 99.2%, 98.0% respectively. The T-N removal efficiency with the recycle ratio, increased by 56%, 67%, 70% respectively. As increasing the recycle ratio by 0.5, 1.0, 2.0, T-P removal efficiency decreased by 62.1%, 57.4%, 51.3% respectively. The process by releasing the stored phosphorus in the anoxic reactor and uptaking the excess phosphorus in the aerobic reactor, occurred well comparatively when recycle ratio is 0.5. But this process did not occur when the recycle ratio is 1.0 and 2.0. And optimum pH of nitrification was about 6~7 and alkalinity decreased as nitrification rate increased. As increasing the recycle ratio in the anoxic reactor, DO concentration and ORP increased.

Continuous Alcohol Fermentation by a Tower Fermentor with Cell Recycle Using Flocculating Yeast Strain (Flocculating 효모균주의 재순환에 의한 Tower 발효조를 이용한 연속알콜발효)

  • 페차랏칸자나시리완;유연우김공환
    • KSBB Journal
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    • v.4 no.1
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    • pp.11-14
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    • 1989
  • A study on the continuous fermentation with cell recycle by a tower fermentor to produce ethanol has been carried out. ethanol fermentation was conducted with flocculating yeast strain, Saccharomyces cerevisiae TS4, to compare the ethanol productivity with conventional continuous process. Employing a 15% glucose feed, a cell density of 50 g/l was obtaind. The ethanol productivity of the cell recycle system was found to be 26.5g EtOH/1-hr, which was nearly 7.5 times higher than the conventional continuous process without cell recycle. A cell recycle ratio of 7 to 8 resulted in the highest ethanol productivity and cell concentration. Thus the cell recycle ratio was found to be a key factor in controlling the production of clarified overflow liquid. An aeration rate above 3.8 $\times$ 10-3 VVM seemed to decrease the ethanol productivity. The continuous fermentation with cell recycle was successfully used in the separation of cells from fermentation broth with enhancement of mixing in the tower fermentor.

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A Preliminary Experimental Study on the Development of Oxy-Fuel Combustion Heating System with $CO_2$ Recycle ($CO_2$ 재순환형 산소연소 가열시스템개발에 관한 실험적 연구)

  • Lee, Eun-Kyung;Go, Chang-Bok;Jang, Byung-Lok;Han, Hyung-Kee;Noh, Dong-Soon;Jeong, Yu-Seok
    • 한국연소학회:학술대회논문집
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    • pp.69-74
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    • 2006
  • An Experimental study was conducted on $CO_2$ recycle combustion heating system using pure oxygen instead of conventional air as an oxidant, which is thereby producing a flue gas of mostly $CO_2$ and water vapor($H_2O$) and resulting in higher $CO_2$ concentration. The advantages of the system are not only the ability to control high temperatures characteristic of oxygen combustion with recycling $CO_2$. but also the possibility to reduce NOx emission in the flue gas. A small scale industrial reheating furnace simulator and specially designed variable flame burner were used to characterize the $CO_2$ recycle oxy-fuel combustion, such as the variations of furnace pressure, temperature and composition in the flue gas during recycle. It was found that $CO_2$ concentration in the flue gas was about 80% without $CO_2$ recycle, but increased to $90{\sim}95%$ with $CO_2$ recycle. The furnace temperature and pressure was decreased due to recycle and the NOx emission was also reduced to maintain under 100ppm.

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A Study on the Design Method of Restructuring Hanok by the Restoration (재생디자인을 활용한 한옥의 재구축 디자인 방법에 관한 연구)

  • Park, Sang-Hyun;Park, Chan-Il
    • Korean Institute of Interior Design Journal
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    • v.19 no.1
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    • pp.16-26
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    • 2010
  • In recent, as rediscovery of the modern value is developed through the support by the government and the reinterpretation of the traditional culture, a Korean-style house(Hanok) also becomes an object of interest. Among these various viewpoints to see the Korean-style house, the necessity of a new spatial design approach to contain the types and functions of the architectural space of the Hanok appropriate to the modern society is raised which is not a passive approach to preserve the existing cultural assets. Out of the methods of the new spatial design of the Hanok which reflect the paradigm of the times, this study has the purpose to make an approach from the viewpoint of 'Restoration design'. As the 21 st century started, the recycle design whose active discussion and performance is made largely by Europe and Japan can be called a design method in the hardware part which enables continuous adaptive use of a building by applying a new use purpose and method to a building which doesn't use the recycle design or has low efficiency. In that meaning, it can be considered to be a very important architectural activity historically, archltecturally and spatially. Based on the methodological characteristics of the recycle design, this study largely divides the types of recycle into coherent recycle and imagery recycle and dedto s detailed methods of space, consinto ion and material and wardrobe used for each case to analyze the methods of concrete recycle design through the methodological analysis of recycle cases of the existing modern buildings. For the objects of recycle cases of the Hanok made recently based on the design methods acquired here, it was examined how the architectural and spatial characteristics of the Hanok can be reconsinto ed through what kinrecycmethods. The approach of the recycle design is considered to be a cornerstone to show a new architectural and spatial value in the viewpoint of the Hanok existence in modern times.

Rheology and Strength Properties Improvement of Recycle Cement by Admixture (혼화재료에 의한 재생시멘트의 레올로지 및 강도특성 개선)

  • 오상균;임승준;김정길
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.89-94
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    • 2003
  • Recently, the study to reduce and recycle industrial waste is underway vigorously in the various fields of industry according to the conservation of environment and resources. In construction work, the disposal problem of its waste and environmental disruption have already been serious all over the world. However the recycle of waste concrete is still at an early stage, recycled aggregate from waste concrete have only used those as subsidiary road fillers. The research institute and the company make the study that it is about the properties of recycled aggregate and those structural capacity since 1990. Through the experimentation last year, we know that strength and fluidity of recycle cement are inferior to normal cement, and admixing aggregate powder deteriorates its strength. The purpose of this study is to search for appropriate heating time and to improve performance of the recycle cement while heating hardened cement which is crushed, we investigate separating aggregate from hardened cement by preheating and improvement of strength and fluidity inrecycle cement which contains admixture.

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일본 폐플라스틱 재활용 현황

  • 한국발포스티렌재활용협회
    • 환경사랑
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    • pp.2-3
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    • 1996
  • 세계적으로 재활용 활동이 잘 이뤄지는 나라를 들라면 일본을 빼놓을 수 없다. 일본은 스티로폴을 포함한 플라스틱에 대한 사용 규제 제도는 시행하지 않고 있다. 그러나 자원 재순환정책의 일환으로 물질 재활용(Material Recycle), 에너지 재활용(Thermo Recycle), 화학적 재활용(Chemical Recycle) 등 다양한 재활용 방법을 적극 장려하고 있다.

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