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        검색결과 2,366

        1782.
        2007.11 KCI 등재 서비스 종료(열람 제한)
        The emissions characteristics of particulate matters(PM) according to the types of wastes from industrial waste incinerator of 800 kg/hr treatment capacity were investigated. For this study, the incinerate waste are as follows; waste resin, waste wood, waste urethane, waste gunny, and waste paper. The particulate samples were collected to be emitted in stack and air pollution control(both cyclone and bag filter). In stack, the concentrations of PM were in the range of 2.61 to 26.51 ㎎/S㎥ and the major chemical species were C, Si, Cl, K, Na, Ca in all the wastes. In cyclone fly ash, the mean content of heavy metal were in the order of Fe > Zn > Pb > Cu > Mn > Cr > Ni > Cd > As > Hg and the heavy metal content of waste resin were Zn 34,197.5 mg/kg, Fe 27,587.6 mg/kg, Pb 6,055.8 mg/kg, respectively. In bag filter fly ash, the mean content of heavy metal were in the order of Zn > Pb > Fe > Cu > Mn > Cd > Cr > Ni > As > Hg and the heavy metal content of waste wood were Pb 36,405.2 mg/kg, Fe 15,762.9 mg/kg, Cu 9,989.5 mg/kg, Cd 2,230.1 mg/kg, respectively. Comparing the heavy metal content of both cyclone and bag filter, in cyclone, the Cr, Fe, Ni content were higher than in bag filter and the Cd, Cu, Hg content were lower than in bag filter.
        1796.
        2007.09 KCI 등재 서비스 종료(열람 제한)
        안동댐과 임하댐 유입수의 탁도 및 부유고형물의 농도변화는 서로 유사한 경향을 보이며, 강우강도에 큰 영향을 받는 것으로 나타났다. 탁도 및 부유고형물의 농도는 임하댐유역이 안동댐 유역에 비해 높으며, 임하댐 유역에서는 반변천 유역이 용전천 유역보다 높게 나타난다. 강우로 인한 탁도 발생 후 시간에 따른 입도분포와 구성광물은 안동댐과 임하댐 모두 큰 차이가 나타나지 않는다. X-선회절분석 결과 탁도유발물질의 구성광물은 버미큘라이트, 일라이트, 카올리나이트, 석영, 사장석으로 안동댐과 임하댐의 광물 조성은 유사하지만 각 광물의 함량은 차이가 난다.