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RISS 인기검색어
- 검색키워드
- 저자 : 서화중 ( Young Gun Ahn (검색결과 3 건)
- 무료
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안영근,서화중 ( Young Gun Ahn,Hwa Joong Sheo ) 한국하천호수학회 1976 생태와 환경 Vol.9 No.3·4
The contamination level of ABS, the synthetic detergent, was determined at eleven areas of upper streams and mid streams of Young San river on April, May and June in 1976. Throughout the whole experiment Ji Seok, Hwang Ryong and upper Young San river all had below 0. 075ppm ABS residue, and in these area ABS contents were similar to each other. The sudden increasing tendency of ABS contents at the mid stream are attributed to being greatly affected by much polluted Gwang Ju stream which has 0.235∼0.275ppm of ABS. But dilution of pollutant was taken place in this area by the inflowing of Ji Seok and Hwang Ryong river. On June ABS content and other pollutant increased a little as compared with April and May. But at any area it did not exceed 0. 5ppm, the standard value of drinking water. To know the influence of ABS contamination on DO content the relationship between ABS and DO was examined by calculating correlation coefficient. This relationship has strong and significant correlation(r=-0.78) and the distribution trend of frequency are more fit to the curve line equation xy-6.3x=0.045 than to the straight line equation y=-3.9x+7.4. In the relationship between ABS and COD a strong and significant correlation coefficient(r=0. 93) was calculated and the frequency distribute very closely along the straight line equation y=22.2x+1.21. From above facts the author found out that as the ABS contamination in general river water coexist closely with other pollutant it is likely to be considered as new water pollution index.
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영산강상류와 동복천의 상수용 하천수의 수질오탁이 염소요구량에 미치는 영향에 관한 연구
안영근,주흥규,서화중 ( Young Gun Ahn,Heung Kyu Jhoo,Hwa Joong Sheo ) 한국하천호수학회 1976 생태와 환경 Vol.9 No.3·4
This study aimed to aquire information about chlorine disinfection of general river water for city water works and rural water supplies. In this experiment chlorine demand and other selected 6 items were determined on river water sample(n=120) on April, May and June in 1976. Analyzing the determined data statisticaly the chlorine demand of river water was presumed as a reliable average by month and area. April has 0.93±0.245ppm of chlorine demand, May 1.04±0.84ppm and June 1.46±0.024ppm. Hwang Ryong river has 12±0.27ppm of chlorine demand, Ji Seok river 1.1±0.31ppm, Geuk Rak river 1.5±0.15ppm and Dong Bok Dam 1.13±0.021ppm. To know the influence of water pollution on chlorine demand the author examine the relationship between chlorine demand and the other 6 items by determining correlation coefficient. All have strong and significant correlation having γ=0.79∼.0.91 range. KMnO_4, consumed, chlorine demand has strongest relationship of these. Because turbidity is regarded as representative of pollutant in water works treatment the relationship between turbidity and other pollutant are examined. All have strong and significant correlation coefficient having γ=0.65∼0.91 interval. The relationship between turbidity and BOD is strongest of these.
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안영근,서화중 원광대학교 식품약품안전성연구소 1987 食品藥品安全性硏究 Vol.1 No.-
The contamination level of ABS, the synthetic detergent, was determined at eleven areas of upper streams and mid streams of Young San river on April, May and June in 1976. Throughout the whole experiment Ji Seok, Hwang Ryong and upper Young San river all had below 0.075ppm ABS residue, and in these area ABS contents were similar to cach other. The sudden increasing tendency of ABS contents at the mid stream are attributed to being greatly affected by much polluted Gwang Ju stream which has 0.235∼0.275ppm of ABS. But dilution of pollutant was taken place in this area by the inflowing of Ji Seok and Hwang Ryong river. On June ABS content and other pollutant increased a little a compared with April and May. But at any area it did not exceed 0.5ppm, the standard value of drinking water. To know the influence of ABS contamination on DO content the relationship between ABS and DO was examined by calculating correlation coefficient. This relationship has strong and significant correlation(r=-0.78) and the distribution trend of frequency are more fit to the curve line equation xy-6.3x=0.045 than to the straight line equation y=-3.9x+7.4. In the relationshop between ABS and COD a strong and significant correlation coefficient(r=0.93) was calculated and the frequency distribute very closely along the straight line equation y=22.2x+1.21. From above facts the author found out that as the ABS contamination in general river water coexist closely with other pollutant it is likely to be considered as new water pollution index.
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