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¿µÁøÄÚÆÛ·¹ÀÌ¼Ç Á¾ÇÕÄ«´Ù·Î±× |
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References |
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ISO 10694 : |
Soil quality - Determination of organic and total carbon after dry combustion (Elemental analysis) |
UNI EN 15936:2012 : |
Sludge, treated biowaste, soil and waste - Determination of total organic carbon (TOC) by dry combustion. |
Tested with VELP Scientifica CN 802 Carbon Nitrogen Analyzer (Code F30800090) |
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Introduction
Æó¼ö ó¸®Àå¿¡¼ ¹ß»ýÇÏ´Â Çϼö ½½·¯Áö´Â Åä¾çÀÇ Æ¯¼ºÀ» °³¼±ÇÏ°í ½Ä¹° ¼ºÀå¿¡ ÇʼöÀûÀÎ Áß¿äÇÑ ¿µ¾çºÐ ¹× ¹Ì·® ¿ø¼Ò¸¦ Á¦°øÇÒ ¼ö Àֱ⿡ ¸¹Àº °ü½ÉÀ» ¹Þ°í ÀÖ´Ù.
ÃÑ Åº¼Ò TC ´Â ÃÑÀ¯±âź¼Ò (TOC) ¿Í Ãѹ«±âź¼Ò (TIC) ·Î ³ª´ ¼ö ÀÖ´Ù. TOC ¸¦ ÃøÁ¤ÇÏ´Â °ÍÀº Åä¾çÀÇ TOC ³óµµ°¡ ³ôÀ¸¸é Çø±â¼º ºÐÇØ °úÁ¤À» ¹æÁöÇÏ°í
½ÉÃþ Åä¾ç¿¡ Áú¼Ò°¡ ³óÃàµÇ´Â °ÍÀ» ¹æÁöÇÒ ¼ö ÀÖ¾î ¾ÆÁÖ Áß¿äÇÏ´Ù.
VELP CN 802ÀÇ ¼º´ÉÀ» WEPAL (Wageningen Evaluating Programs for Analytical Laboratories) ¿¡¼ ÁÖ°üÇÏ´Â Proficiency Testing Program À» ÅëÇØ Æò°¡ÇÏ¿´´Ù.
Çϼö ½½·¯Áö »ùÇÃÀ» CN 802 ¸¦ »ç¿ëÇÏ¿© ºÐ¼®ÇÏ°í ¾òÀº °á°ú (Áú¼Ò %) ¸¦ WEPAL¿¡¼ Çã¿ëÇÏ´Â Åë°è ¹üÀ§¿Í ºñ±³Çß´Ù.
Organic and Total Carbon determination in sludge
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CN802 C. N ¿ø¼ÒºÐ¼®±â´Â ¸ÕÀú ½Ã·á¸¦ combustion (CF) ÇÏ¿© ½Ã·á¸¦ ¿¬¼Ò½ÃŲ´Ù |
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±× ´ÙÀ½ ´Ü°èÀÎ physical trap ÀÎ WT1-DriStep¢â ´Ü°è¿¡¼ water ¸¦ Á¦°ÅÇÑ´Ù |
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±×¸®°í reduction furnace (RF) ´Ü°è¿¡¼ Áú¼Ò»êȹ° (NOx) À» Áú¼Ò·Î ȯ¿ø½ÃŲ´Ù. |
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´Ù½Ã µÎ¹ø° physical trap ÀÎ WT2-DriStep¢â ´Ü°è¿¡¼ water ¸¦ ´Ù½ÃÇѹø ´õ Á¦°ÅÇÑ´Ù. |
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NDIR (Non-Dispersive Infrared NDIR Detector) ´Ü°è¿¡¼ CO©ü ³óµµ¸¦ ÃøÁ¤ÇÏ°í ÀÌ ³óµµ ¼öÄ¡´Â Carbon ¾çÀ¸·Î °è»êµÇ¾îÁø´Ù. |
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±×¸®°í ÀÌ ÀåÄ¡¿¡ ÇÔ²² ÀÖ´Â auto-regenerative CO©ü absorbers °¡ CO2 ¸¦ ¿ÏÀü Èí¼öÇÑ´Ù. |
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ÃÖÁ¾ ´Ü°è¿¡¼ LoGas¢â TCD (Thermal Conductivity Detector) °¡ Áú¼Ò ³óµµ¸¦ ÃøÁ¤ÇÑ´Ù. |
CN 802 Preliminary Operations (daily)
¾Æ·¡ ÃøÁ¤ Á¶°Ç°ú °°ÀÌ Åä¾ç ³» ź¼Ò ¹× Áú¼ÒÀÇ ÇÔ·®À» ÃøÁ¤ÇÏ¿´´Ù |
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Temperature Combustion reactor (Code A00000158) : 1030 ¡ÆC |
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Temperature Reduction reactor (Code A00000226) : 650 ¡ÆC |
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Flow rate MFC1 He : 190 ml/min |
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Flow rate MFC2 He : 220 ml/min |
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calibration ¿ë Ç¥ÁØ »ùÇà : 2 EDTA standard (Code A00000149) |
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CHECK UP »ùÇÃ : 3 to 5 empty tin foils (Code A00000153) |
Ç¥ÁØ »ùÇÃÀ» ÀÌ¿ëÇÏ¿© Calibration Curve ¸¦ »ý¼ºÇÏ¿© ÃøÁ¤ ¹× ºÐ¼®¿¡ »ç¿ëÇÏ¿´´Ù. |
Sample Preparation
µÎ°³ÀÇ reference ¿ë Æó¼ö ½½·¯Áö »ùÇðú Å×½ºÆ® ÇÏ°íÀÚ ÇÏ´Â »ùÇà 1°³¸¦ ºÐ¼®ÇÏ¿´À¸¸ç ±â´ëÇÏ´Â ¿¹»ó °á°ú °ªÀº ´ÙÀ½°ú °°´Ù.
Reference Samples : |
Expected Values on Dry Matter : |
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Wepal BIMEP 404 Sewage sludge sample |
C % = 32.50 - 32.96 |
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Wepal BIMEP 447 Sewage sludge sample |
C % = 23.7 - 24.7 |
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Unknown sludge sample |
C % unknown |
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Sieve ¸¦ »ç¿ëÇÏ¿© °ÅÄ£ ¾Ë¸ÍÀÌ ºÎºÐÀ» Á¦°ÅÇÑ´Ù. ±×·± ´ÙÀ½ »ùÇÃÀ» ±ÕÁúÈÇÏ°í 105¡ÆCÀÇ ¿Àºì¿¡¼ °ÇÁ¶ÇÑ´Ù.
Reference Sludge »ùÇÃÀº ÀÌ¹Ì ±ÕÁúÈ µÇ¾ú°í ºÐ¼® Àü¿¡ 105¡ÆC¿¡¼ Á÷Á¢ °ÇÁ¶µÇ¾ú´Ù.
°¢ ½½·¯Áö »ùÇÃÀÇ µÎ °¡Áö ¼ººÐÀ» ºÐ¼®Çß´Ù.
- ÃÑ Åº¼Ò (TC) ÀÇ ÃøÁ¤ : CN 802 ¿¡¼ ¹Ù·Î ºÐ¼®
- ÃÑÀ¯±âź¼Ò (TOC) ÃøÁ¤ : ½Ã·á¸¦ ¿°»ê (HCl) À¸·Î ó¸®ÇÏ¿© ¹«±âź¼Ò¸¦ Á¦°ÅÇÑ ÈÄ CN 802 ¿¡¼ ºÐ¼®.
¡Ø °ø½ÄÀûÀÎ ±ÔÁ¤ (Áï, ISO 10694)¿¡ µû¸£¸é silver tin foil (ÄÚµå A00000371) ¿¡ »ùÇÃÀ» ³Ö°í 2N HCl ·Î ó¸®ÇÏ¿©
¹«±â ź¼Ò¸¦ Á¦°ÅÇÑ ÈÄ TOC¸¦ ÃøÁ¤ÇÒ ¼ö ÀÖ´Ù°í ¸í½ÃµÇ¾î ÀÖÀ¸¸ç ÀÌ ¹æ¹ýÀº ÇöÀç °¡Àå ³Î¸® »ç¿ëµÇ°í ÀÖ´Â TOC ÃøÁ¤ ¹æ¹ýÀÌ´Ù.
Analysis Procedure
´ÙÀ½°ú °°Àº Á¶°ÇÀ¸·Î TC ¿Í TOC ¸¦ ÃøÁ¤ÇÏ¿´´Ù.
- Protein factor: none
- O2 flow rate: 300 ml/min
- O2 factor: 1.6 ml/mg
- ºÐ¼®½Ã°£ : from 3 minutes for one run
Typical TC and TOC Results on Sludge sample
Ç¥ÁØ Åº»êÄ®½· (C% = 12) ¹× ¾Æ¼¼Æ®¾Æ´Ò¸®µå (C% = 71) ¸¦ »ç¿ëÇÑ 0 - 70 mg C ¹üÀ§ÀÇ calibration curve ¸¦ ÅëÇØ °á°ú¸¦ ¾ò¾ú´Ù.
calibration curve ´Â È¥ÇÕ¹° B¿Í ÇÔ²² Ç¥ÁØ UNI 15936ÀÇ ¹æ¹ý B¿¡ µû¶ó È®ÀεǾú´Ù.
¾òÀº µ¥ÀÌÅÍ´Â ºÐ¼® ÀÎÁõ¼¿¡¼ Çã¿ëÇÏ´Â Çã¿ë ¿ÀÂ÷¿¡ Æ÷ÇԵȴÙ.
¾Æ·¡ Ç¥´Â CNSoft¢â ¿¡¼ ¾òÀº TC ¹× TOC °á°ú¸¦ º¸¿©ÁØ´Ù.
Conclusion
VELP Scientifica CN 802 ź¼Ò Áú¼Ò ºÐ¼®±â´Â ½½·¯Áö ½Ã·áÀÇ ÃÑ Åº¼Ò (TC) ¹× ÃÑ À¯±â ź¼Ò (TOC) ÃøÁ¤À» À§ÇÑ ÀÌ»óÀûÀÎ ¼Ö·ç¼ÇÀÌ´Ù.
ºÐ¼®±â´Â ¼ÒÇÁÆ®¿þ¾î CNSoft¢â ¿¡ ÀÇÇÑ ÀÚµ¿ °è»êÀ¸·Î ºü¸£°í ½¬¿î ¹æ¹ýÀ¸·Î ½Å·ÚÇÒ ¼ö ÀÖ´Â °á°ú¸¦ º¸ÀåÇÑ´Ù.
¿¹»ó °á°ú¿¡ ±ÙÁ¢ÇÏ°í ½Å·ÚÇÒ ¼ö ÀÖ´Â ÃøÁ¤ °á°ú´Â CN 802 ºÐ¼®±âÀÇ ¶Ù¾î³ ÀçÇö¼º°ú Á¤È®¼ºÀ» º¸¿©ÁØ´Ù.
³ôÀº »ý»ê¼º°ú ³í½ºÅé ¼º´ÉÀ» °®Ãá CN 802 ¿¬¼Ò ÀåÄ¡´Â Çï·ý°ú ¾Æ¸£°ïÀ» ¿î¹Ý °¡½º·Î »ç¿ëÇÏ´Â ¿ÏÀü ÀÚµ¿ÈµÇ°í ºÐ¼®´ç 2-5ºÐÀÌ ¼Ò¿äµÇ´Â
³ôÀº 󸮷®À» º¸¿©ÁÖ´Â ÀÌ»óÀûÀÎ ÀåºñÀÌ´Ù.
Main advantages of VELP Combustion analyzer
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½Ã·á´ç 3-4ºÐÀÇ ¸Å¿ì ½Å¼ÓÇÑ ºÐ¼®½Ã°£ |
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Áú¼Ò 0.001mg ±îÁö ÃøÁ¤ÇÒ ¼ö ÀÖ´Â ÃÊÁ¤¹Ð ÃøÁ¤´É·Â°ú 0.5% (EDTA) º¸´Ù ÈξÀ ³·Àº »ó´ëÇ¥ÁØÆíÂ÷¸¦ º¸À̴ Ź¿ùÇÑ ÀçÇö¼º |
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Çõ½ÅÀû ±â¼ú°ú Á¤Ç°¼Ò¸ðÇ° Áö¿ø¿¡ ÀÇÇÑ ¸Å¿ì ³·Àº ½Ã·á´ç ÃøÁ¤ ºñ¿ë |
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¸Å¿ì ½±°í ºü¸¥ Àåºñ ¼³Ä¡ |
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´©±¸³ª ½±°Ô »ç¿ëÇÒ ¼ö ÀÖµµ·Ï ¼³°èµÈ User Interface |
CN 802 Carbon and Nitrogen Elemental Analysis
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