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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.34, no.3, 2001³â, pp.192-198
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°æ¾Èõ¿¡¼ Çϼö󸮼ö¿Í »ýÇϼö¿¡ ´ëÇÑ algal bioassay
( Algal Bioassay for the Treated and Raw Wastewater in the Kyongan Stream ) |
| ÀÌ¿ÁÈñ;Ȳ¼øÁø;Á¶°æÁ¦;½ÅÀç±â; ÀÎÁ¦´ëÇб³ ´ëÇпø »ý¹°Çаú;°Ç±¹´ëÇб³ Áö¿ª»ýŽýºÅÛ°øÇаú;ÀÎÁ¦´ëÇб³ ȯ°æ½Ã½ºÅÛÇкÎ;°Ç±¹´ëÇб³ Áö¿ª»ýŽýºÅÛ°øÇаú;
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| °æ¾Èõ°ú ÆÈ´çÈ£ À¯ÀԺδ Çϼöó¸®Àå ¹èÃâ¼ö¿Í ¹Ìó¸®µÈ »ýÇϼöÀÇ ¿µÇâÀÌ Å« °÷ÀÌ´Ù. ÀÚ¿¬Á¶·ù °³Ã¼±ºÀ» ÀÌ¿ëÇÑ Èñ¼®¹ý(bioassay)À¸·Î ¹èÃâ³óµµ ¹× ¼öÁúÀÇ fertility¸¦ Æò°¡ÇÏ¿´´Ù. $NH_4$, SRP ¹× SRSiÀÇ ³óµµ¿Í Á¶·ù »ý¹°·®Àº Á¤»ó°ü °ü°è·Î¼ ƯÈ÷ P¿¡ ´ëÇÑ »ó°ü¼º¿¡ ´ëÇØ À¯ÀÇÆ÷°¡ ³ô¾Ò´Ù(r=0.959, p<0.001).¹è¾ç Ãʱ⠳󵵿¡ ºñÇØ Çϼöó¸®Àå°ú »ýÇϼöÀÇ $NH_4$´Â 96%, 7%, SRP´Â 78%, 66% ¹× SRSi´Â 97%, 60% °¨¼ÒÇÏ¿´À¸³ª NO3´Â º¯È°¡ ¾ø°Å³ª ¿ÀÈ÷·Á Áõ°¡ÇÑ °æÇâÀ» º¸¿´°í, chl-a¹üÀ§´Â $20{sim}125;{mu}g/l$·Î¼ ÃÖ´ë 89¹è Áõ°¡ÇÏ¿´´Ù. Chl-a¿ÍSRPÀÇ °ü°è·ÎºÎÅÍ Á¶·ù »ý¹°·®À» Áß¿µ¾ç ±âÁØ(<25;{mu}g$;chl-a/l$) ÀÌÇÏ·Î À¯ÁöÇÒ °æ¿ì ¹èÃâ P³óµµ´Â $83;{mu}g; P/l$¿¡ ÇØ´çÇÏ¿´´Ù. ¶ÇÇÑ ÀÌ ±âÁØÀ» °í·ÁÇÏ¿© ÇÏõ À¯·®ÀÇ Èñ¼®¿¡ ÀÇÁ¸ÇÒ °æ¿ì ÇöÀç À¯·®º¸´Ù $16{sim}25$¹èÀÇ ¼ö·®ÀÌ ¿ä±¸µÇ¾ú´Ù. ¼ö·® È®º¸´Â Çö½ÇÀûÀ¸·Î ¸Å¿ì ¾î·Æ±â ¶§¹®¿¡ Á¶·ù »ýÀåÀ» ÃËÁøÇÏ´Â $NH_4$, SRPÀÇ Àú°¨À» À§ÇÑ °íµµÇϼö󸮴 ÇʼöÀûÀÌ´Ù. |
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| The Kyongan Stream and the inlet part of Paltang Reservoir are under significant influence of the effluent of sewage wastewater treatment plant (SWTP) and untreated domestic wastewater (DOW). The fertility of wastewater was evaluated through bioassay using natural phytoplankton population diluted in five levels. The concentrations of $NH_4$, SRP and SRSi were positively correlated with the biomass of phytoplankton. P concentration showed stronger correlation (r = 0.959, p<0.001)than other nutrients. Compared with the initial concentrations, $NH_4$ concentrations in samples from SWTP and DOW decreased 96% and 7%, respectively during the cultivation, and those of SRSi decreased 97% and 60%. However, $NO_3$ concentrations in samples neither showed any particular change nor any increase. Chl-a concentration ranged between $20;{mu}g/l$ and $125;{mu}g/l$, which maximum value increased up to 83 times. Estimated from the relationship between chl-a and SRP, the P concentration that can maintain the biomass of algae under mesotrophic state (<25;{mu}g$;chl-a/l$) was $83;{mu}g; P/l$. The volume of flow to maintain this level solely by natural dilution was about $16{sim}25$ times of in flowing volume in the stream. However, it is not feasible to tap water of such quantity. Therefore, it is imperative to build an advanced sewage wastewater treatment facility that can reduce $NH_4$ and SRP concentrations that promote the growth of phytoplankton in discharged water. |
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| Ű¿öµå |
| Algal assay;Kyongan Stream;Limiting nutrient;Wastewater; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.34, no.3, 2001³â, pp.192-198
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200118317177602)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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