• 한국태양에너지학회:학술대회논문집
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• 한국태양에너지학회 2009년도 추계학술발표대회 논문집
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• pp.279-284
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• 2009

Traditionally, so-called "industrial waste gases", such ad exhaust from boilers at industrial installations and a large quantity of soot discharged from power station, before their release into the atmosphere, have been on occasion subjected to an air cleaning process to remove fine particles that may pollute the atmosphere (such as mist and dust containing various powdery or oily substances and moisture from industrial waste gases). The release of industrial waste gases containing these particles directly into the atmosphere poses a serious threat to the earth environment; and recovery of these noxious substances is required by law in some countries and local governments. in urban areas, air pollution from automobile exhaust and others creates a serious condition. Some homes are equipped with and use indoor air purifiers. In many of the kitchens of restaurants, smoke generated during cooking and otherwise contaminated air are cleansed by air purifiers before being released outside or recycled inside. For the dust collecting devices to recover the fine particles contained in contaminated air, the cause for air pollution and how to purify air, many types based on various principles are known. Specifically, classified based on theories of particle collection, filtration, gravity, inertia, centrifugation, electricity, and cleaning types are cited as available processes. Among them, an appropriate type is selected according to the size or type of fine particles to be collected and conditions for installation. For the efficiency of dust collection, a filtration system (by using bag filters and others) and electric system are particularly outstanding and are therefore used widely in various areas of industry. In this research, rotary type high performance oil mist and smoke collecting system with self auto cleaning device equipped with the cleaning fluid spraying section is investigated.

• 대한가정학회지
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• 제39권7호
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• pp.59-70
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• 2001

The study was designed to heap reduce daily household waste and promote the recycling of society's resources. the focus is on promoting environment-friendly activities and slevating a sense of nature-conscious domestic welfare, as well as providing wars to encourage garbage-savvy shopping, waste disposal by content and recycling. The thesis utilized demographic data obtained from 225 female homemakers and includes results based on frequency, ratio, mean, Duncan's Multiple range Test and Multiple Regression analysis. The main results are as follows: 1. Environmental consciousness appears to be higher than that of the adjustment of purchases to reduce waste and of recycling. Conversely more action seems to be taken on the waste disposal separation established since the launch of the volume-based waste collection fee system than on environmental education. 2. Homemakers with relatively higher environmental consciousness reciprocate with correspondent shopping habits, waste disposal eparation and recycling. Factors that influence daily waste reducing action include environmental consciousness homemaker employment status and the type of residence. 3. Activities reducing daily domestic wastes appear to effect a meaningful variable in explaining a sense of environmental welfare. The more respondents practice related shopping habits, waste disposal separation or recycling the more they recognize their living environment as desirable.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.1001-1008
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• 2022

As a part of the Smart Cities Mission, the Government of India in 2015 embarked upon the development of 100 existing cities as smart cities. In this study, the authors selected Ahmedabad city as the smart city development in India and presented project-level elements of the city based on the secondary data availability. At first, the authors focused on peer-reviewed articles, policy documents, and technical reports. Next, the authors collected the secondary data of project-level elements of the Ahmedabad city from the years 2015 to 2019. The findings show no significant improvement in the sewage system and waste collection as compared to the level of investment made in these sectors. The study showed that the water supply system outperformed revenue generation based on the government investment made in that sector. As a lesson learned, these findings indicate that significant improvement should be addressed in sewage management and waste collection. These study findings could help government officials, investors, developers, and city planners in making the appropriate decision before and during smart city execution. The lesson learned from this study could be used as a reference to improve revenue during the future smart city implication.

• 대한환경공학회지
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• 제35권5호
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• pp.321-333
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• 2013

주택 내에서 발생하는 음식물 쓰레기의 실태를 조사하고, 음식물 쓰레기의 자원화와 바이오처리를 이용한 음식물 쓰레기 무배출 시스템에 대한 거주자의 태도를 조사하는 본 연구에서는 전국 소재의 공동주택 단지 총 400세대를 대상으로 설문조사를 실시하였다. 가설검정을 위하여 SPSS window version 18.0 통계분석 프로그램을 사용하여 빈도 및 백분율, t-검정, ANOVA, 요인분석, 로지스틱 회귀분석을 실시하였다. 분석 결과, 주택에서 배출되는 음식물 쓰레기는 국 또는 찌개류, 나물반찬, 과일류 등 수분이 다량 함유되고 쉽게 부패되는 종류였고, 음식준비과정에서 많이 배출되고 있었으며, 쓰레기 배출시 악취와 벌레 등의 불쾌감과 쓰레기 배출시의 불편함이 지적되었다. 이로 인해 음식물 쓰레기의 에너지화와 부엌 싱크대에 음식물 쓰레기 무배출 시스템의 설치에 적극적이었으며, 그 시스템을 주택건설단계부터 구조적으로 설치되길 선호하였다. 회귀분석 결과, 주부 학력, 요리스타일과 식재료 구입계획의 식재료 구매단계 특성이 음식물 쓰레기의 자원화 경향에 통계적으로 유의한 요인들이었다. 즉, 주부 학력이 높을수록, 식재료 구매단계특성 중 식재료 구입계획이 허술할수록 음식물 쓰레기를 자원화하려는 경향이 높았다. 반면, 음식물 쓰레기 무배출 시스템 설치 희망에 미치는 요인은 통계적으로 유의하지 않았으나, 주부연령이 낮고 학력이 높을수록 가족생활주기가 자녀초등 청소년기일수록 음식물 쓰레기 무배출 시스템 설치를 적극적으로 희망하는 편이었다. 따라서, 쾌적한 주거환경 조성과 지속가능한 생활환경 창출을 위해 음식물 쓰레기의 자원화 및 무배출 시스템의 설치는 필요하며, 활발한 보급을 위해서는 사용자 친화적인 설계와 제도적 지원이 수반되어야 할 것이다.

• 한국환경교육학회지:환경교육
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• 제11권1호
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• pp.181-194
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• 1998

This study is for rationalizing the collecting system of recycling waste materials in elementary, middle and high school in Incheon. The student participating in collecting system is so much helpful in env. educational aspect, So the students need to be took part in the system. The result on investigating actual condition of the student's participating of schools in Inchon City is not sufficient to be helpful to env. educational effect. 1st. The names of recycling waste can are so various that the students can's understand which can in for Recycling. 2nd. Collecting system is also very different according to schools. 3th. The incentives for student's participating in collecting process are also not sufficient. The conclusion is that the school should provide the students incentives for taking parts in the collecting process, in that actualizing the recycling process is helpful to env. education, and the another one in that we should remove the recycling ideology, which is the some belief, the more production is no problems, if recycling is activated socially. But this idea is evident error. In this aspect the concept of recycling should be changed from re-using to re-turning to nature.

• 대한환경공학회지
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• 제38권4호
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• pp.155-161
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• 2016

본 연구는 쾌적한 주거환경과 지속가능한 도시를 구현하기 위한 일환으로 신규 공공주택단지에 건설된 생활폐기물 자동집하시설을 이용하는 거주자를 대상으로 그 사용 평가를 분석하는데 그 목적이 있다. 6개 도시 소재 분양 및 임대 아파트 단지 11곳의 거주자들을 대상으로 설문조사를 하였으며, 통계분석한 결과를 요약하면 다음과 같다. 거주자들 대부분은 현주택단지에 이사 오기 전까지 생활폐기물 자동집하시설을 들어보거나 사용해 경험이 없었으며, 대부분 이사 직후 관리사무소 직원을 통해 사용법을 습득하였다. 다만, 분양아파트 거주자들에 비해 임대아파트 거주자들의 이용법 교습시점이 3배 이상 늦어졌다. 생활폐기물 자동집하시설에 대한 만족도는 분양아파트 거주자보다 임대아파트 거주자들에게서 더 높았고, 세부적인 항목에서도 임대아파트 거주자들이 보다 더 긍정적으로 평가하였다. 생활폐기물 자동집하시설에 대한 부정적으로 평가된 항목은 거의 없었으나 사용자 중심의 편리성이 강화된 시설로 거듭나는 요구가 있었다. 분양 및 임대아파트 거주자들 대부분은 생활폐기물 자동집하시설이 쾌적한 주거환경 구축하므로 확대 보급되어야 한다고 하였다.

• 한국지반신소재학회논문집
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• 제2권2호
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• pp.25-31
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• 2003

최근 들어 급격한 자동차의 증가와 함께 발생되는 폐타이어는 관리에 많은 어려움이 있다. 현재 유일한 처리방법으로는 소각처리뿐인데 이 또한 유독 가스를 배출하기 때문에 환경적으로 악영향을 끼칠 수 있어 사용이 곤란하다. 이러한 난처리성 폐기물인 폐타이어는 뚜렷한 대안 없이 방치되어 경관을 해치고 미관상 위협감을 줄 수 있다. 이렇게 환경적 미관적으로 악영향을 미치고 있는 폐타이어를 재활용하는 방안으로 폐타이어 내부에 콘크리트를 채워 구조적 강도를 확보하여 건설자재로 활용하면 내부 콘크리트를 보호할 수 있고 다양한 형태로 제작 가능하여 여러 방면에 적용할 수 있는 재료로 활용할 수 있다. 본 연구에서는 먼저 폐타이어 콘크리트 블록의 사용 가능성을 검토하기 위해 강도 시험을 실시하였고 적용 분야와 적용방법을 검토해 보았다. 본 연구에서 제시한 적용 분야로는 사면안정 공법, 운하건설, 해안 접안시설, 도로 교통안전 시설물, 교량공 교각 및 기초 등이 있다. 이러한 공법으로 폐타이어를 재활용하여 실제 건설 현장에 적용한다면, 자원 재활용이 가능하고 2차 환경오염 등에 따른 비용절감은 물론 소각시 발생할 수 있는 대기오염 방지 및 환경친화적인 경제 부가가치를 창출할 수 있을 것이다.

• 한국대기환경학회지
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• 제30권4호
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• pp.350-361
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• 2014

Exhaust gas containing wood tar of high concentration is discharged from charcoal production kilns. The large amount of emissions are often found by operational failure. The purpose of this study is to investigate the performance of an integrated treatment system in treating charcoal production exhaust. The system, which combined a tar collection device and a post-combustion unit, was proposed to remove moisture, wood tar, particulate matter, and other gas-phase pollutants (CO, $CH_4$, total hydrogen carbons) from exhaust gases. Heat recovery units were also applied in the system to utilize waste heat.

• 한국분무공학회지
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• 제7권2호
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• pp.7-15
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• 2002

A particle flow visualization, electrostatic charging measurement and separation of triboelectrically charged particles in the external electric field by a fluidized bed tribocharger are conducted for the removal of PVC particles from mixed waste plastics. The laboratory-scale triboelectrostatic separation system consists of the fluidized bed tribocharger, a separation chamber, a collection chamber and a controller. PVC and PET particles can be imparted negative and positive surface charges respectively due to the difference of triboelectric charging series between particles and particles in the fluidized bed tribocharger, and can be separated by passing them through an external electric field. To visualize these charged particles, He-Ne laser is used with cylindrical lenses to generate a sheet beam. In the charging measurement, the particle motion analysis system (PMAS), capable of determining particle velocity and diameter. is used to non-intrusively measure particle behavior in high strength electric field. The average charge-to-mass ratios of PVC and PET particles are $1.4\;and\;1.2{\mu}C/kg$, respectively. The highly concentrated PVC (91.9%) can be recovered with a yield of about 96.1% from the mixture of PVC and PET materials for a single-stage processing. The triboelectrostatic separation system using the fluidized tribocharger shows the potential to be an effective method for removing PVC from mixed plastics for waste plastic recycling.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 The 6th International Symposium of East Asian Resources Recycling Technology
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• pp.597-601
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• 2001

Waste plastics amount is more than 3.5 million tons and 30% of industrial waste in 1998, Korea but recycling rate of industrial waste plastics is quite low because the material separation technology from the mixed waste plastic powders is not commercially available so far. This study covers the triboelectrostatic separation of polyvinylchloride (PVC) materials collection chambers and controllers. PVC and PET powders can be imparted negative and positive surface charges, respectively, due to the difference of triboelectric charging series between particles and particles in the fluidized bed tribocharger, and can be separated by passing them through an external electric field. The extract content and yield of PVC separation from the mixed PVC and PET plastic powders are 90.0% and 98.2%, respectively. The electrostatic separation system using the fluidized bed tribocharger shows the potential to be an effective method for removing PVC materials from other mixed plastics.