• Title/Summary/Keyword: Environmental Technology

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A Field Study for Sustainable Community Empowerment through Appropriate Technology of Water Purification and the Concept of Feces Standard Money in Hatphain Village, Lao PDR

  • Heo, Huijin;Choi, Mi-Jin;Im, Tae Hyug;Cho, Jaeweon
    • Journal of Appropriate Technology
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    • v.7 no.2
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    • pp.151-161
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    • 2021

  • The application of appropriate technologies in a developing country is an opportunity to introduce green technology which may lead people to imagine a better life. This point is at the intersection of appropriate technology and sustainable development. This research focuses on Hatphain village where there is no clean water, sewage system, or power lines. Two environmental technologies (an unpowered water purification system, Ongdalsaem and an eco-toilet system, BeeVi toilet) were introduced, based on the concepts of the environmental self- sustainable village and feces Standard Money (fSM). We found that the Ongdalsaem was effective in reducing the concentration of nitrogen and lead in the water in Hatphain. The BeeVi water-free toilet was installed, allowing urine and feces to be separated and used as compost. We strived to spread ideas of sustainability using new eco-circulation experiences and encouraging learning about environmental technology through practical and playing facilities that residents managed themselves.

  • https://doi.org/10.37675/jat.2021.7.2.151 인용

Applying a Life-Cycle Assessment to the Ultra Pure Water Process of Semiconductor Manufacturing

  • Tien, Shiaw-Wen;Chung, Yi-Chan;Tsai, Chih-Hung;Yang, Yung-Kuang;Wu, Min-Chi
    • International Journal of Quality Innovation
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    • v.6 no.3
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    • pp.173-189
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    • 2005

  • A life-cycle assessment (LCA) is based on the attention given to the environmental protection and concerning the possible impact while producing, making, and consuming products. It includes all environmental concerns and the potential impact of a product's life cycle from raw material procurement, manufacturing, usage, and disposal (that is, from cradle to grave). This study assesses the environmental impact of the ultra pure water process of semiconductor manufacturing by a life-cycle assessment in order to point out the heavy environmental impact process for industry when attempting a balanced point between production and environmental protection. The main purpose of this research is studying the development and application of this technology by setting the ultra pure water of semiconductor manufacturing as a target. We evaluate the environmental impact of the Precoat filter process and the Cation/Anion (C/A) filter process of an ultra pure water manufacturing process. The difference is filter material used produces different water quality and waste material, and has a significant, different environmental influence. Finally, we calculate the cost by engineering economics so as to analyze deeply the minimized environmental impact and suitable process that can be accepted by industry. The structure of this study is mainly combined with a life-cycle assessment by implementing analysis software, using SimaPro as a tool. We clearly understand the environmental impact of ultra pure water of semiconductor used and provide a promotion alternative to the heavy environmental impact items by calculating the environmental impact during a life cycle. At the same time, we specify the cost of reducing the environmental impact by a life-cycle cost analysis.

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A study on the betterment of the curriculum in the department of environmental science technology. (전문대학 환경관리과 교육과정 개발연구)

  • 우세홍;구성회;김남천
    • Journal of Environmental Health Sciences
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    • v.8 no.1
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    • pp.99-107
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    • 1982

  • This study was carried out to improve the curriculum in the department of environmental science technology in junior college, and the results were as follows 1. The educational aim of the department of environmental science technology in junior college has been rearranged. 2. The curriculum has been developed in accordance with the educational aim of this department. 3. The adoption of majoring courses is desirable. 4. The respective educational aims and the respective syllabus of the courses have been set up in accordance with the curriculum. 5. Studies on environmental planning and environmental economics which are necessary in future society, are disirable. 6. The enlargement of the educational oppurtunity in field-works by means of the efficient administration of cooperation committee of industry-college and of the educational effect by means of the utilization of the technology and man-power in the fields of the industry is really desirable.

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