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RISS 인기검색어
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- 저자 : 김정애 ( Jeung Ae Kim ) (검색결과 2 건)
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최형일 ( Hyung Il Choi ),정경훈 ( Kyung Hoon Cheong ),채희정 ( Hee Jeoung Chae ),김연풍 ( Youn Poong Kim ),조도호 ( Do Ho Jo ),설동화 ( Dong Hwa Seol ),김정애 ( Jeung Ae Kim ) 조선대학교 공학기술연구원 2008 공학기술논문지 Vol.1 No.1
The conclusions of this study are summarized below: First, as a result of the evaluation of the mobility of the sorting and separating devices that are moved to and operated at the sites where construction waste is generated, very satisfactory results, namely about 2 days (13. 15 hr) to finish sorting and separating construction waste, were drawn. Second, 142.1 tons per hour were sorted and separated (treatment ability) on average. In terms of volume, about 32.6% of the treatment ability was higher than the suggested 80 ㎥/hr, at 106.1 ㎥/hr. Third, as a result of a grain test conducted on the 10~25 mm of recycled aggregates produced after injecting a good quality of sorted and separated waste concrete into the existing crushing and pulverizing process it was found that about 76.3% of the recycled aggregates remained in the 10 mm grains. For the absorption rate, 6.42% in the grains of less than 10 mm. 3.93% in the 10~25 mm grains, and 6.12% in the 25~40 mm grains were demonstrated. The moisture content was about 8.8% in the less than 10 mm grains, 4.74% in the 10~25 mm grains, and 6.11 % in the 25~40 mm grains. Fourth, in the case of operating sorting and separating devices for the on-site recycling of construction wastes, the noise level was found to be about 44.5~76.0 dB (A) around the target facilities and about 54.8~79.4 dB (A) within the working radius after measuring the levels of noise, vibration and dispersed dust, in view of the effort to minimize disputes and civil petitions deriving from noise, vibration and dispersed dust. The concentration of dispersed dust generated - when simultaneously operating the sorting process of the forward treatment for construction wastes and the production process for recycled aggregates - was about 0.089~0.707 mg/㎥ in the area around the facilities and was about 0.158~0.335 mg/㎥ at the site boundary. These levels actually met the permitted dust exposure level of 2~10 mg/㎥ of the first type to the third type of dispersed dust in relation to the working environment.
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정경훈,최형일,김정애,박상일 조선대학교 환경공해연구소 2007 環境公害硏究 Vol.20 No.1
It is ten years since the volume based waste free system carried out. This aimed to analysis and estimate about the achievement of the volume based waste free system of the Ministry of Environment and Damyang-Gun. According to the analysis of its result, it is still unsatisfied to use the plastic bags of the volume based waste free system and to separate and throw away the wastes. The Public Opinion says that the Government needs to further step up publicity activities on the volume based waste free system by making good use of TV, newspaper, and magazine, and should offer the incentives to people who observe the volume based waste free system, In addition, it says that people in Damyang-Gun incinerate illegally(60.5%). Therefore. the study and supply of waste disposal method is necessary to people in Damyang-Gun, manufacturers themselves should collect wastes, and Damyang-Gun should expend the systematical device of collecting wastes. If these things go on, the volume based waste free system will be fixed.
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