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이창균(Chang-Gyun Lee),정금희(Kum-Hee Jung),고장석(Jang-Seog Go),임봉수(Bong-Su Lim) 대전대학교 환경문제연구소 2004 환경문제연구소 논문집 Vol.8 No.-
This study was conducted to evaluate the actual proof test on the working efficiency of the sewage treatment facility accoding to processes in rural area by the applied process to select the process fitted to the area and get effective management about the facility. The removal efficiency of the six processes investigated the actual proof test on the working efficiency of the sewage treatment facility after the plant established by items was 71.4% SS, 59.3% COD, 30.2% T-N and 12.6% T-P respectively. So, the removal rate of SS was the highest and these efficiencies was remarkable lower than the noticed information by companies. The removal efficiency by absorbing biofilter process in the six participated processes on the actual proof test on the working efficiency of the facility was analyzed more excellent than the others. Most of the sewage treatment facilities has been high efficient during first one year after the facility established. But thereafter the efficiency taken a sudden turn for the worse. Therefore, the actual proof test on the working sewage treatment facility was very important procedure. The essential problems on the maintenance of the facility were brower stopping by interruption of electric power, much inflow of a detergents and unskilledoperators etc. Hence, it is considered that the systematical control about the facility will be enforced with periodical facilities examination, regular water quality inspection and correspondence management to troubles immediately.
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폐광 광재와 유출수가 주변 토양과 하천오염에 미치는 영향
양천회,고장석 大田産業大學校 1998 한밭대학교 논문집 Vol.15 No.1
This study was investigated the extent of heavy metal contamination in areas of the soil and river by the effluent and abandoned mines in Chung Chong Nam Do. The abandoned mines were Gubong gold mine and Sinsung coal mine. The results were as follows. The concentrations of As and Pb in Gubong mine were 309.2mg/kg and 1163.5mg/kg which is above the soil quality standard. Cd concentration also was 14.70mg/kg which is exceeded warning level. The heavy metal contaminations in the vicinal paddy and dry field soil area were higher than those in coal mine area. However, As concentration was 29.29mg/kg which is exceeded the warning level as of 10.22mg/kg. The river water quality detected shows high Pb, As and Cd in Gubong stream and Cd, Cu and Pb in Sungju stream.
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양천회,고장석 한국산업안전학회 1998 한국안전학회지 Vol.13 No.4
This study was investigated the distributions of heavy metal concentration in a soil near abandoned mine in Chung Chong Nam Do. The abandoned mines were Gubong gold mine and Sinsung coal mine. The results were as follows: 1) The concentration of As and Pb in Gubong mine were 309.2㎎/㎏ and 1163.5㎎/㎏, that is exceeded the countermeasure criteria. Cadmium concentration was 14.70㎎/㎏, that is exceeded anxiety criteria. But all items in Sinsung coal mine was detected below criteria. 2) The heavy metals contamination of riverbed soil by gold mine showed higher than coal mire. 3) The heavy metals contamination in the vicinal paddy and dry field soil area was higher than other mine. Arsenic concentration was 29.29㎎/㎏, that is exceeded the anxiety criteria as 102㎎/㎏.
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