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간이이동법에 의한 폐아스콘 재생시 대기오염물의 배출분석에 대한 실험적 연구 (A Pilot Study on Emission Analysis of Air Pollutants Produced from Portable Recycling of Asphalt Concrete)

이병규;김행아;정의량;;채포기;박경원
- 한국환경과학회지
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- 제16권3호
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- pp.385-392
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- 2007
Currently, portable equipment for recycling of waste asphalt concrete (ASCON) has been used. However, any air pollution control devices are not attached in the simple portable one. Thus, a lot of air pollutants have been produced from recycling processes of waste ASCON which resulted from aging of paved roads or repavement of roads. This study deals with a preliminary result of concentration analysis of air pollutants obtained from a pilot and a real recycling processes of waste ASCON using simple portable recycling equipment. Air pollutants were taken from 4 steps of the pilot recycling process including an initial heating by liquid petroleum gas (LPG), intermediate heating and melting (H&M) process, final H&M process, and pavement processes using recycled ASCON at the recycling site. Also, air pollutants were taken front 4 steps of the real recycling processes including an initial H&M, final H&M and mixing, loading of recycled ASCON to dump trucks, and at the recycling site after leaving the loaded dump trucks for real pavement sites. The air pollutants measured in this study include volatile organic compounds (VOCs), aldehydes, particulate matter (PM: PM1, PM2.5, PM7, PM10, TSP (total suspended particulate)). The identified concentrations of VOCs increased with increasing time or degree for H&M of waste ASCON. In particular, very high concentrations of the VOCs at the status of complete melting, which is exposed to the air, of the waste ASCON just before paving tv the recycled ASCON at the recycling site. Also, considerable amount of VOCs were identified from the recycling equipment after the dump trucks leaded by recycled ASCON leaved the recycling site for the pavement sites. The relative level of formaldehyde exceeded 80% of the aldehydes Identified in the recycling processes. This is because the waste ASCON is exposed to direct flame of LPG during H&M processes. The PM concentrations measured in the winter recycling processes, such as the loading and rotation processes of waste ASCON into/in the recycling equipment for H&M, were much higher than those in the summer ones. In particular, the concentrations of coarse particles such as PM7 and PM10 during the winter recycling were very high as compared those during the summer one.
https://doi.org/10.5322/JES.2007.16.3.385 인용 PDF KSCI

의복 재활용에 대한 인식 및 사장의복 실태 분석 (Perception Related to Recycling Clothing and Analysis of the Actual Conditions for the Unused Clothing)

박영희
- 패션비즈니스
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- 제24권5호
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- pp.1-20
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- 2020
This study analyzed the perceptions related to recycling clothing and the actual conditions of unused clothing based on demographic characteristics to help reduce environmental pollution. A total of 833 questionnaires were used in data analysis for this survey study. The subjects consisted of men and women in their 20s to 50s who resided in Gyeongnam and Ulsan, Korea. The data were analyzed by χ²-test using SPSS. The results obtained were as follows. The intention to recycle others' clothing was significantly different for all the demographic characteristics. Overall, the response "I have an intention to recycle others' clothing" was reported by a relatively high proportion of the respondents. The analysis of the motivation to others' clothing showed a significant difference in all demographic characteristics except gender. The main motivation for recycling clothing was because "I wanted to recycle the clothing". The factors hindering recycling others' clothing showed significant differences according to gender, marital status, and occupation. The main hindrance factor was reported as "feeling uncomfortable". The causes of occurrence of unused T-shirts significantly different for all demographic characteristics. The causes of occurrence of unused trousers and skirts was significantly different for all demographic characteristics except monthly income. The cause of undisposed, unused clothing was related to all demographic characteristics Overall, the response "reluctant to dispose of" was reported by a relatively high proportion of the respondents.
https://doi.org/10.12940/jfb.2020.24.5.1 인용 PDF KSCI