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KMID : 0615219780040010045
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Journal of Kwangju Health
1978 Volume.4 No. 1 p.45 ~ p.53
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Research of Water Pollution Control in Gwangju River
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柳一光
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Abstract
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This study about influent pollutants loading and characteristic water quality was.
examined with water quality which was measured from 11 sampling positions (5 from main river and 6 from branch streams) of Gwangju river for seven month (June 1977-December 1977)
The results obtained are as follows.
1. The practical flux of Gwangju river was 5,940㎥/day for the upper stream of Gwangju river (sampling position 2), 138, 900㎥/day for the mid-stream (sampling position 5), and 311,500㎥/day for the lower stream of Gwangju river (sampling position 10)
2. The influent factors of BOD, COD, SS,and NH₄-N from all the direct influx not including the 11 sampling positions were 13-35% in Gwangju river. However, the main.
factor for the water pollution was the influx factor of 25- 42% through Seobang stream, whose water was mainly drained from farm lands.
3. The characteristic properties of Gwangju river were positive in the correlation matrix between BOD and COD, between BOD and SS, between COD and SS (p<0.05) and negative between DO and BOD,. between DO and COD, between DO and SS (p<0.05).
4. The water quality of municipal waste water flowing to Gwangju river was 229.
2ppm of BOD, 344. lppm of COD, 532.3ppm of SS,40.5ppm of NH₄-N, and 16.3ppm of ABS.
5. The amount of Effluent pollutants by one citizen was 45.9gr/day/man of BOD, 68.9gr/day/man of COD, 106.7gr/day/man of SS, 8.1lgr/day/man of NH₄-N₂ and 3.3gr/ day/man of ABS.
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