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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.34, no.2, 2001³â, pp.126-132
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Çϼö¹æ·ù¿¡ µû¸¥ ÇÏõÀÇ ¿ëÁ¸»ê¼Òº¯È ¿¹Ãø
( A Model Study of Dissolved Oxygen Change by Waste Water Discharge in the River ) |
| ¼ºµ¿±Ç;±èűÙ;ÃÖ°æ½Ä; ÀüºÏ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;ûÁÖ´ëÇб³ ȯ°æ°øÇаú;ȯ°æ°ü¸®°ø´Ü À¯¿ª°ü¸®Ã³;
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| µµ½ÃÈ Çö»ó ¹× Àα¸Áõ°¡¿¡ µû¶ó ȯ°æ±âÃʽü³ÀÇ È®ÃæÀÌ ÇÊ¿äÇÏ¸ç ±âÃʽü³ÀÇ ¹æ·ù¼ö´Â ÀÎÁ¢ÇÏõ ¼öÁú¿¡ ¿µÇâÀ» ¹ÌÄ¡±â ¶§¹®¿¡ ó¸®ÀåÀÇ ±Ô¸ð ¹× À§Ä¡´Â ÇÏõÀÇ ¼öÁúÀ» °í·ÁÇÏ¿© °Ç¼³ÇÏ¿©¾ß ÇÑ´Ù. º» ¿¬±¸¿¡¼´Â ±âÃʽü³ÀÇ ¹æ·ù¼ö¿¡ µû¸¥ ÇÏõÀÇ ¿ëÁ¸»ê¼Òº¯È¸¦ STELLA ¸ðµ¨À» »ç¿ëÇÏ¿© ¿¹ÃøÇÏ¿´´Âµ¥ ÃÖ¼Ò ¿ëÁ¸»ê¼Ò·®Àº 4.98 ppmÀ¸·Î ó¸®ÀåÀ¸·ÎºÎÅÍ 42.6 km ÇÏ·ù¿¡ À§Ä¡ÇÑ ÁöÁ¡ÀÌ¸ç ¹æ·ù¼ö ÇÕ·ùÀü ÇÏõÀÇ ¿ëÁ¸»ê¼Ò(7 ppm)¸¦ À¯ÁöÇϱâ À§Çؼ´Â ¾à 8ÀÏÀÌ ¼Ò¿äµÇ¸ç ó¸®ÀåÀ¸·ÎºÎÅÍ ¾à340 km ÇÏ·ùÁöÁ¡¿¡¼ ¿ëÁ¸»ê¼Ò 7 ppmÀ¸·Î Áõ°¡ÇÏ°Ô µÈ´Ù. ÀÚÁ¤ÀÛ¿ë Áß ½Ä¹°¼º ÇöûũſÀÇ ¿¬»ê±â´ÉÀÇ Á߿䵵¸¦ ¾Ë±â À§ÇÏ¿© ½Ä¹°ÇöûũſÀÇ ±âÀÛÀ» ¹èÁ¦ÇÏ°í ¿¬»êÇÑ °æ¿ì ÃÖ¼Ò ¿ëÁ¸»ê¼Ò´Â 4.92 ppmÀ̸ç ÃÖ¼Ò ¿ëÁ¸»ê¼Ò³óµµ±îÁö µµ´ÞÇϱâ À§Çؼ´Â 0.25ÀÏ ´õ °É¸®¸ç ¹æ·ù¼ö ÇÕ·ùÀü ÇÏõÀÇ ¿ëÁ¸»ê¼Ò 7 ppmÀ» À¯ÁöÇϱâ À§Çؼ´Â ¾à 11ÀÏÀÌ ¼Ò¿äµÇ´Â °ÍÀ¸·Î È®ÀεǾú´Ù. º» ¿©±¸ °á°ú´Â ÀÚÁ¤ÀÛ¿ë Áß ½Ä¹°ÇöûũſÀÇ ¿¬»ê±â´ÉÀÇ Á߿伺À» ÀÔÁõÇÑ °ÍÀÌ¸ç »õ·Î¿î ±âÃʽü³ÀÇ ÀÔÁö´Â ÀÎÁ¢ÇÑ ±âÃʽü³¿¡ µû¸¥ ÇÏõ ¼öÁúÀ» °í·ÁÇÏ¿© ¼±Á¤ÇÏ¿©¾ß ÇÒ °ÍÀÌ´Ù. |
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| Urbanization and population increase result in the construction of STPs (Sewage Treatment Plants). Discharge from STPs greatly influences on the water quality in the stream which receives discharges. The decision of STP location should be considered with the discharge capacity of STP and self-purification of river in the water quality perspectively. In this study, a change of dissolved oxygen (DO) in a river being affected by STP discharge was simulated by the STELLA model. Minimum DO was 4.98 ppm in 42.6 km downstream of STP. Approximately, it takes 8days to recover the DO by the self-purification and this location is 340 km down-stream from the STP. If the model run for the consideration of the self-purification without phytoplankton algorithms, minimum DO was 4.92 ppm. It took 0.25 day longer to be the minimum DO than that with the phytoplankton functions. Without the phytoplankton algorithm, it took 11days to recover the DO. This proves the importance of phytoplankton in the self-purification processes. Additionally, the effect of adjacent STP discharge should be considered in the construction of new STP. |
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| Ű¿öµå |
| Sewage treatment plant;Dissolved oxygen;self-purification;STELLA model; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.34, no.2, 2001³â, pp.126-132
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200118317177254)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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