• Title, Summary, Keyword: Recyclable

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Sustainable Environmental Science & Recycling Technology Education for High School and Middle Schools: Global Scenario

  • Thenepalli, Thriveni;Chilakala, Ramakrsihna;Ahn, Ji Whan
    • Journal of Energy Engineering
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    • v.28 no.1
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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.

A Study on the Architectural Characteristics of ¡?Verbena Heights¡?Estate in Hong Kong (홍콩 버비나하이츠(Verbena Heights) 주거단지의 특징에 관한 연구)

  • 이재훈;김남응;김성화
    • Journal of the Korean housing association
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    • v.13 no.3
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    • pp.21-31
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    • 2002
  • The purpose of this study is to find the architectural characteristics of Verbena Heights, super high-rise complex housing, which has been most highly evaluated as a new town development model in Hong Kong, as a successful case of new housing type and sustainable design. The analyzed features of Verbena Heights are as follows; 1) Formation of various open spaces by a creative layout. 2) Enhancement of natural ventilation and daylighting by a linear plan instead of conventional cruciform plans. 3) Applications of integrated facade design for noise mitigation and for sunlight shading. 4) Adoption of energy-efficient devices, use of recyclable materials, and improvement of livability by a sustainable design process. These architectural characteristics provide the high-density high-rise housing with more efficient and comfortable environments for residents. And it is proved that the sustainable design can enhance the quality of dwelling environment.

Development of Remediation and Stabilization Technique for Low-Permeable Contaminated Soil Using Waste Materials (폐기물을 활용한 저투수성 오염토양의 정화 및 안정화 기술 개발)

  • 박상규;이기호;박준범
    • Proceedings of the Korean Geotechical Society Conference
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    • pp.681-688
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    • 2002
  • Study was peformed to develop the‘environmental double pile’for the remediation of low-permeable contaminated soil. This technique is similar in function to‘sand drain pile’But this applies recyclable oyster shell treated as waste materials to a drain material and the pile is consisted of two layers. Inner metal pile is located in center and oyster shells are filled around it. By this technology, contaminated ground water is pumped out through the oyster shell and purified by drainage, adsorption, and reaction processes. Afterwards, the grout material is injected through the inner pile for the effect of the solidification / stabilization. As a result, the concept of this technique is a development of one-step process technology. Through the test, a consolidation characteristic by radial drain is going to be evaluated and the optimum standard of this technology will be calculated.

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A Study on the environmental friendly High-Tech Architecture in the 20th century Architecture (20세기 현대건축에 나타난 환경친화적인 하이테크건축(High-Tech)에 관한 연구)

  • 김종인;박희영
    • Korean Institute of Interior Design Journal
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    • no.27
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    • pp.128-135
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    • 2001
  • Environmental friendly architecture'is undeniably a verb important and global paradigm. Beyond energy-conscious design and building with renewable materials, environmental friendly architecture also deals with recyclable and found forms and images. Concepts of sustainable building lead to the analysis of all currently available options for building optimization. Tomorrow's framework for information and communication processing, as well as automation and process optimization. The purpose of this study is to define the conceptions about 'environmental friendly Architecture' and to discover new alternative architecture in the end of the 20th century.

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Recovering Hydration Performance of Cementitious Powder by Concret Waste according to Burning Temperature (폐콘크리트계 미분말의 소성조건에따른 수화성 회복)

  • 강태훈;정민수;안재철;강병희
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.81-87
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    • 2003
  • The purpose of this study is the development of a recycling process to recover the hydrated ability of cement hydrate which accounts for a large proportion of cementitious powder by concrete waste in order to recycle cementitious powder by concrete waste as recycle cement. Therefore, after having theoretical consideration based on the properties of high-heated concrete, we consider the properties of hydration of cementitious powder in hardened mortar under various temperature conditions. As a result of experiment, it is revealed that an effective development of recycling cement is possible since the cementitious powder by concrete waste recovers a hydraulic property during burning at $600^{\circ}C$ or $700^{\circ}C$. And it is shown that the fluidity of mortar decreases rapidly as the burning temperature of recycle cement increases. however, the improved effect of fluidity is predominant if adding the additive such as fly-ash or blast furnace slag.

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A study on the Residents' Attitudes for the Shared Community Space of Apartment (아파트 공유공간에 대한 거주자들의 태도에 관한 연구)

  • 조성희;강혜경
    • Journal of the Korean housing association
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    • v.9 no.3
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    • pp.47-57
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    • 1998
  • The purpose of this study is to find out the residents' attitudes for the shared community space (SCS) according to various housing sizes (60㎠, 85㎠, 102㎠, 135㎠). The major findings are as follows: 1) The residents' overall trends for the SCS showed that the satisfaction rate and requirement rate according to housing size didn't show a significant difference, but there was a considerable difference among the using rates for each category of housing sizes. 2) The kinds of common facilities that residents required were recreational facilities, car-wash facilities, children's play centers, facilities for separation/sanitation for garbage and recyclable materials and lounging facilities in that order. The common facilities that require tenant-management were recreational facilities, car-wash facilities and lounging facilities in that order. The common facilities that require participation in tenant-management were study/reading facilities, recreational facilities and hobby/lecture facilities in that order. 3) With regard to the residents' needs, the tenant-management and participation in it, the kinds of common facilities were differentiated according to housing size (60㎠, 85㎠, 102㎠, 135㎠).

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Disassemblability of Mechanical Parts in Automobile for Recycling of Materials (자원 재활용을 위한 부품의 분리 용이성)

  • Mok, Hak-Soo;Chung, Hyun-Kyo;Park, Ju-Hyung
    • Journal of the Korean Society for Precision Engineering
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    • v.13 no.1
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    • pp.153-166
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    • 1996
  • It is important to make use of the scrapped materials, components, and subassemblies which have still high quality and reliability in an out of service cars from the view point of economy and environment. In this paper, we studied geometrical and material characteristics of parte, subassemblies and joining elements to be assembled in designing a car. The mechanism of disassembly between parts and subassemblies is analyzed in order to disassemble recyclable parts in a scrapped automobile. The weak points of disassembly process are analyzed and the parameters for disassemblability are defined. And the guidelines for disassemblability are developed.

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Montmorillonite Clay Catalyzed Three Component, One-Pot Synthesis of 5-Hydroxyindole Derivatives

  • Reddy, B.V. Subba;Reddy, P. Sivaramakrishna;Reddy, Y. Jayasudhan;Bhaskar, N.;Reddy, B. Chandra Obula
    • Bulletin of the Korean Chemical Society
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    • v.34 no.10
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    • pp.2968-2972
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    • 2013
  • A highly efficient and environmentally benign protocol has been developed for the first time to produce a wide range of biologically active 5-hydroxyindole derivatives using montmorillonite KSF clay as a reusable solid acid catalyst. The use of recyclable clay makes this procedure quite simple, more convenient and cost-effective.

A Study on the Recycle and Reuse Suitability Environmenttal Furniture Design - Design Of Street Furniture with Maneking - (재사용 및 재활용에 적합한 환경가구디자인에 관한 연구 - 마네킹(Maneking)을 이용한 스트리트 퍼니처(Street Furniture) 디자인을 중심으로 -)

  • Lee, Min-Ho
    • Journal of the Korea Furniture Society
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    • v.17 no.1
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    • pp.47-54
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    • 2006
  • This study focused on designing environment-friendly furnitures by recycling useless stuffs. I designed environment-friendly furnitures by using plastic manekings, which do not decay easily. Designing environment-friendly furnitures by using maneking, we should consider the following; to make our surrounding comfortable and pleasant, to make the appearance of the streets more beautiful, and to consider our future environment. We need to use reusable and recyclable wastes much more to make environment-friendly furnitures from now on.

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Value-added Polyolefin Products

  • Ok, Myung-Ahn
    • Proceedings of the Polymer Society of Korea Conference
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    • pp.152-152
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    • 2006
  • Polyolefins show a very healthy growth rate among commodity polymer resins due to their low feedstock prices, recyclable and environmentally friendly characteristics and easily controllable performances. Capacity investment in polyolefin field is now moving from technology region to consumer region and feedstock region. Therefore, key success factors for polyolefin business in the other region such as Korea are cost reduction, development of highly value-added products and new applications and substitution of PVC, PS, PET and other EPs. To add additional value to commodity polyolefin products, high level of platform technology such as catalyst, process and structure-properties relationship is needed. Progress on polyolefin products has been very closely related to catalyst and process technology. According to this trend, SK Corporation has devoted a lot of research effort into development of new value-added polyolefin products based on the proprietary technology platform.

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