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[2023] [Áß±¹] Áß±¹°úÇпø ¿¬±¸ÆÀ, ÁöÇ¥¼ö ¼öÁú ½Å¼ÓÇÏ°í Á¤È®ÇÏ°Ô °¨ÁöÇÏ´Â ´ÙÁß ¼¾¼­ À¶ÇÕ ¸ðµ¨ °³¹ß
À̸§ °ü¸®ÀÚ waterindustry@hanmail.net ÀÛ¼ºÀÏ 2023.07.17 Á¶È¸¼ö 457
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Áß±¹°úÇпø ÇãÆäÀ̹°¸®°úÇבּ¸¼Ò ¿¬±¸ÆÀÀº ÁöÇ¥¼öÀÇ Àڿܼ±-°¡½Ã ½ºÆåÆ®·³(UV-Vis)°ú ±ÙÀû¿Ü¼±(NIR) ½ºÆåÆ®·³ÀÇ µ¥ÀÌÅ͸¦ À¶ÇÕÇØ ÁöÇ¥¼ö ¼öÁúÀ» ºü¸£°í Á¤È®ÇÏ°Ô °¨ÁöÇÒ ¼ö ÀÖ´Â »õ·Î¿î ¹æ¹ýÀ» ¹ßÇ¥Çß´Ù.


È­ÇÐ ¹× °íºÐÀÚ °øÇÐ ÇмúÁöÀÎ ¡º½ºÆåÆ®·ÎÅ°¹ÌÄ« ¾×Ÿ ÆÄÆ® A: ºÐÀÚ ¹× »ýü ºÐÀÚ ºÐ±¤ÇÐ(Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy)¡»¿¡ ¹ßÇ¥µÈ ÀÌ ¿¬±¸ÀÇ ¸ñÇ¥´Â ÁöÇ¥¼ö ¼öÁú ¿À¿°ÀÇ ¿¹¹æ°ú ÅëÁ¦¿¡¼­ Áß¿äÇÑ ¼öÁú ¸Å°³º¯¼öÀÇ ½Ç½Ã°£ ¸ð´ÏÅ͸µÀ» °¡´ÉÇÏ°Ô ÇÏ´Â °ÍÀÌ´Ù.


È­ÇÐÀû »ê¼Ò ¿ä±¸·®(COD), ¾Ï¸ð´Ï¾Æ¼º Áú¼Ò(AN) ¹× ÃÑ Áú¼Ò(TN)´Â ÁöÇ¥¼ö ¼öÁúÀÇ ¿À¿° Á¤µµ¸¦ Æò°¡ÇÏ´Â µ¥ »ç¿ëµÇ´Â ÁÖ¿ä ÁöÇ¥ÀÌ´Ù. ±âÁ¸ÀÇ È­ÇÐ ¹°Áú °ËÃâ ¹æ¹ý°ú ºñ±³ÇØ UV-Vis ¹× NIR ½ºÆåÆ®·³Àº ¼öÁú ¸ð´ÏÅ͸µ¿¡¼­ »ó´çÇÑ ÀÌÁ¡À» Á¦°øÇÏ´Â ºü¸£°í ´Ü¼øÇÑ ´ÙÁß ±¸¼º ¿ä¼Ò ºÐ¼® ±â¼úÀ» Á¦°øÇÑ´Ù.


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UV-Vis ¹× NIR ½ºÆåÆ®·³À» °áÇÕÇÏ°í ´Ù¾çÇÑ º¯¼ö ¼±Åà ¾Ë°í¸®ÁòÀ» »ç¿ëÇØ ÁöÇ¥¼ö ¼öÁú ¿À¿° ÁöÇ¥¿¡ UV-Vis-NIR À¶ÇÕ ¸ðµ¨À» ÃÖÀûÈ­Çß´Ù.


°á°ú´Â UV-Vis-NIR µ¥ÀÌÅÍ À¶ÇÕ ¹æ¹ýÀÌ ´ÜÀÏ ½ºÆåÆ®·³ ±â¼úÀ» »ç¿ëÇÏ´Â °Í¿¡ ºñÇØ ÁöÇ¥¼ö¿¡¼­ COD, AN ¹× TNÀÇ ½ºÆåÆ®·³ ¿¹Ãø Á¤È®µµ¸¦ Å©°Ô Çâ»ó½ÃÅ°´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.


¶ÇÇÑ ÀÌ ¹æ¹ýÀº ´Ù¾çÇÑ ÃÖÀûÈ­ Á¶°Ç¿¡¼­ ´õ ³ôÀº ¾ÈÁ¤¼ºÀ» º¸¿© ´ÜÀÏ ºÐ±¤ ±â¼ú·Î ¾òÀº °á°úº¸´Ù ´õ °³¼±µÈ °¨Áö °á°ú¸¦ º¸ÀåÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.


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[¿ø¹®º¸±â]


Multi-sensor Fusion Models Enable Fast and Accurate Detection of Surface Water Quality


 

A research team at the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has proposed a new strategy for rapid and accurate detection of surface water quality by fusing the data from the ultraviolet-visible spectra (UV-Vis) and near-infrared (NIR) spectra of surface water.


The study, published in Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, aims to enable real-time monitoring of water quality parameters, which is crucial for the prevention and control of surface water pollution.


Chemical oxygen demand (COD), ammonia nitrogen (AN) and total nitrogen (TN) are key indicators used to assess the extent of surface water pollution. Compared to traditional chemical detection methods, UV-Vis and NIR spectra provide fast, simple, and multi-component analysis techniques that have significant advantages in water quality monitoring.


To improve the accuracy of spectral methods for water quality detection, the researchers developed a detection strategy by fusing UV-Vis and NIR spectral data (UV-Vis-NIR). They collected spectral data and performed chemical determinations on 70 river samples with varying degrees of contamination.


By combining UV-Vis and NIR spectra and using different variable selection algorithms, they optimized the UV-Vis-NIR fusion models for surface water pollution indicators.


The results showed that the UV-Vis-NIR data fusion strategy significantly improved the spectral prediction accuracy of COD, AN, and TN in surface water compared to using a single spectral technique.


Furthermore, this method showed better stability under different optimization conditions, ensuring more robust detection results than those obtained with single spectroscopic techniques.


This study provides an exciting perspective for the future application of online spectral monitoring technology for water quality assessment.


[Ãâó = Chinese Academy of Sciences(https://english.cas.cn/newsroom/research_news/phys/202307/t20230713_333516.shtml) / 2023³â 7¿ù 12ÀÏ] 

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