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[±Û·Î¹úÀ̽´±â¼ú] GAC, ¼öó¸® Ç÷£Æ® ÈíÂø¡¤¿©°ú¿ë ¸Þµð¾Æ·Î ÁÖ¸ñ¹Þ¾Æ
À̸§ °ü¸®ÀÚ waterindustry@hanmail.net ÀÛ¼ºÀÏ 2016.07.06 Á¶È¸¼ö 961
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Global Issue Technology


GAC, ¼öó¸® Ç÷£Æ® ÈíÂø¡¤¿©°ú¿ë ¸Þµð¾Æ·Î ÁÖ¸ñ¹Þ¾Æ
    (ÀÔ»óÈ°¼ºÅº)                                                                      

¹°¡¤°ø±â¡¤¾×»ó¡¤°¡½º µî¿¡ ÇÔÀ¯µÈ ºÒ¼ø¹°Áú ¹× ¸À¡¤³¿»õ À¯¹ß¹°Áú ÈíÂø ÅëÇØ Á¦°Å
¹Ì±¹ EPA¡¤ÁÖÁ¤ºÎ, ¡°ÁöÇ¥¼ö ³» ´Ù¾çÇÑ À¯±â¹°Áú Á¦°Å¿¡ °¡Àå È¿°úÀûÀÎ ±â¼ú¡± ÀÎÁ¤


 GAC(ÀÔ»óÈ°¼ºÅº)´Â ¹°, °ø±â, ¾×»ó, °¡½º µîÀÇ ºÒ¼ø¹°À» ÈíÂø ÀÛ¿ëÀ» ÅëÇØ Á¦°ÅÇÒ ¼ö ÀÖ¾î ÈíÂø¡¤¿©°ú¿ë ¸Þµð¾Æ·Î¼­ ¿ªÇÒÀÌ ÁÖ¸ñµÈ´Ù. ÀÌ¿¡ È°¼ºÅº, ÀçÈ°¼ºÈ­ °øÁ¤¿¡¼­ Àڿܼ± »ì±Õ¡¤»êÈ­, ÀÌ¿Â ±³È¯ ±â¼ú, ¹ë·¯½ºÆ® ¼öó¸® µîÀÇ Àü¹®±â¾÷ÀÎ Ä®°ï Ä«º»(Calgon Carbon)»çÀÇ  ´õ±× Äܸ®(Doug Conley) ¸¶ÄÉÆà ¸Å´ÏÀú°¡ ¡ºWater Technology¡»¸¦ ÅëÇØ ÀÌ·¯ÇÑ »çÇ×µéÀ» °ËÅäÇß´Ù. ±× ³»¿ëÀ» ¹ø¿ªÇß´Ù.   [ÀÚ·áÁ¦°ø¡¤¹ø¿ª = ±è´ö¿¬ º»Áö ÆíÁýÀ§¿ø]

 

 

 

   
¡ã ÀÔ»óÈ°¼ºÅº(GAC)Àº ÀÚüÀÇ ÈíÂø ±â´ÉÀ» ÅëÇØ ¹°, °ø±â, ¾×»ó, °¡½º µî¿¡ ÇÔÀ¯µÈ ºÒ¼ø¹° Á¦°Å¿¡ Ź¿ùÇϸç, UV±â¼ú°ú º¹ÇÕ»ç¿ë ½Ã ¼Òµ¶ºÎ»ê¹°, Á¶·ùµ¶¼º¹°Áú, ȯ°æ È£¸£¸ó, ¸À¡¤³¿»õ ¹°Áú Á¦°Åµµ °¡´ÉÇÏ´Ù.

 

ÀÔ»óÈ°¼ºÅº(GAC) °³¿ä (About granular activated carbon)

ÀÔ»óÈ°¼ºÅº(GAC, Granular Activated Carbon)Àº ÀÚüÀÇ ÈíÂø ±â´ÉÀ» ÅëÇØ ¹°, °ø±â, ¾×»ó, °¡½º µî¿¡ ÇÔÀ¯µÈ ºÒ¼ø¹° Á¦°Å¿¡ Ź¿ùÇϸç, ºñ(Þª)±×·¡ÆÄÀÌÆ®(nongraphitic) ÇüÅÂÀÇ Åº¼Ò°áÇÕ¿¡ ÀÇÇØ ³»ºÎÀûÀ¸·Î ¿¬°áµÈ ±×·¡ÆÄÀÌÆ® ÆÇ(graphite platelets) ¹°ÁúÀÌ ´Ù¾çÇÏ°Ô ±¸¼ºµÈ ÇÏÀ̺긮µå º¹ÇÕ¹°ÁúÀÌ´Ù. ¶ÇÇÑ °¡¿­»êÈ­ ¹æ¹ý¿¡ ÀÇÇØ ÀçÈ°¼ºÈ­ µÇ¸ç µ¿ÀÏÇÑ Àû¿ëÀ¸·Î Áߺ¹»ç¿ëÀÌ °¡´ÉÇØ È¯°æ ģȭÀûÀÌ´Ù. ÀÌ¿¡ ¹Ì±¹ ȯ°æº¸È£Ã»(EPA), ÁÖ Á¤ºÎ °Ç°­´ã´ç±¹Àº GAC¿¡ ÀÇÇÑ ÈíÂø±â´ÉÀ» ÁöÇ¥¼ö ³»¿¡ ÇÔÀ¯µÈ ´Ù¾çÇÑ À¯±â¹°ÁúÀÇ Á¦°Å¿¡ °¡Àå È¿°úÀûÀÎ ±â¼ú(BAT, Best Available Technology)·Î ÁÖ¸ñÇÏ°í ÀÖ´Ù.

ÀÌó·³ GAC´Â ÀÚü¡¤°³º°ÀûÀ¸·Î Àû¿ëÇϰųª UV±â¼úÀ» º¹ÇÕÇØ »ç¿ëÇßÀ» ¶§ ¡â¿°¼Ò ¹× ´Ù¸¥ ¼Òµ¶Á¦ »ç¿ë°ú °ü·ÃµÈ ¼Òµ¶ºÎ»ê¹°(DBPs, Disinfection Byproducts) ¡âÁ¶·ùµ¶¼º¹°Áú (Algal toxins) ¡â³»ºÐºñÈ£¸£¸ó ±³¶õ¹°Áú(Endocrine-disrupting compounds) ¡âÁ¦¾àȸ»ç ¾àÁ¦ ¹× °³ÀÎ °Ç°­º¸È£Á¦Ç° ¡â¸À¡¤³¿»õ À¯¹ß¹°Áú ¡â¼Òµ¶ºÎ»ê¹° Àü±¸¹°Áú(precusor)·Î ÀÛ¿ëÇÏ´Â ÀÚ¿¬ ¹ß»ý ¹°Áú ¹× ȲÆóÈ­µÈ »ê¸²À¸·ÎºÎÅÍ »ý¼ºµÇ´Â À¯±â¹°Áú µîÀ» Á¦°ÅÇÒ ¼ö ÀÖ¾î È¿°úÀûÀÌ´Ù.

 

 

The adsorptive capacity of GAC makes it ideal for removing a variety of contaminants from water, air, liquids and gases. Granular activated carbon(GAC) is a hybrid mixture of a wide variety of graphite platelets that are interconnected by nongraphitic carbon bonding. GAC is also an environmentally responsible product that can be reactivated through thermal oxidation and used multiple times for the same application.

The U.S. Environmental Protection Agency(EPA) and most state-based departments of health consider adsorption by GAC to be the best available technology for the removal of many organic materials in surface water.
On its own or paired with an ultraviolet(UV) disinfection system, GAC can facilitate the removal of:
¡¤Disinfection byproducts(DBPs) associated with chlorine and alternative disinfectants
¡¤Algal toxins, such as microcystin-LR, cylindrospermopsin and anatoxin-A
¡¤Endocrine-disrupting compounds
¡¤Pharmaceuticals and personal care products
¡¤Taste and odor-causing compounds
¡¤Organic materials from decaying plants and other naturally occurring matter which serve as the precursors for DBPs
The following is a review of the fundamental aspects of activated carbon and specifically the use of GAC as a filter and adsorbent in potable water treatment.

   
¡ã È°¼ºÅº¼Ò´Â ¿ªÃ»Åº, ¹«¿¬Åº, ¿ªÃ»Åº ºÎ»ê¹°, °¥Åº, ¸ñÀç, ÄÚÄÚ³Ó ¼¿ ¹× Åäź µî ´Ù¾çÇÑ Åº¼ÒÇÔÀ¯ Àü±¸¹°Áú¿¡¼­ »ý¼ºµÈ´Ù. [»çÁøÃâó = Ä®°ï Ä«º»(www.calgoncarbon.com)]

 

UV±â¼ú°ú º¹ÇÕ»ç¿ë ½Ã ¼Òµ¶ºÎ»ê¹°¡¤Á¶·ùµ¶¼º¹°Áú¡¤È¯°æÈ£¸£¸ó¡¤ÀÌÃë¹Ì ¹°Áú µî Á¦°Å °¡´É
ÈíÂø ¼º´É¡¤¸¶¸ð ³»¼º¡¤¹Ðµµ µî GAC Ư¼º°ú ±âÁ¸ ÇÊÅ͸¦ GAC ´ëü ½Ã °æÁ¦¼º °ËÅä ÇÊ¿ä

 

È°¼ºÅº¼ÒÀÇ Á¦Á¶ ¹× »ý»ê (Activated carbon production)

È°¼ºÅº¼Ò(activated carbon)´Â ¿ªÃ»Åº(bituminous coal), ¹«¿¬Åº(anthracite), ¿ªÃ»Åº ºÎ»ê¹°(subbituninous coal), °¥Åº(lignite), ¸ñÀç, ÄÚÄÚ³Ó ¼¿¡¤Åäź(peat) µî ´Ù¾çÇÑ Åº¼ÒÇÔÀ¯ Àü±¸¹°Áú¿¡¼­ »ý¼ºµÈ´Ù. ÀÌ·¯ÇÑ ¹°ÁúµéÀº °¡¿­¹æ½Ä ȤÀº ÄɹÌÄà Ȱ¼ºÈ­ °øÁ¤À» ÅëÇØ È°¼ºÅº¼Ò·Î º¯È¯µÈ´Ù. °¡¿­¹æ½ÄÀº ½ºÆÀ È°¼ºÈ­(steam gasfication, activation) ¹æ¹ýÀÌ ÀϹÝÀûÀ¸·Î »ç¿ëµÇ°í ÄɹÌÄà Ȱ¼ºÈ­ °øÁ¤Àº ºñ±³Àû ³·Àº ¿Âµµ¿¡¼­ È°¼ºÈ­ ¹«±â¹°ÁúÀ» ÷°¡ÇØ È°¿ëµÈ´Ù.

¿ªÃ»Åº(bituminous coal)À¸·Î »ý¼ºµÇ´Â È°¼ºÅº¼Ò´Â Á÷Á¢ È°¼ºÈ­(direct activated), ÀçÀÀ°á ¹æ½Ä(reagglomerated)À¸·Î ºÐ·ùµÈ´Ù. Á÷Á¢ È°¼ºÈ­ ¹æ¹ýÀº ¼®ÅºÀ» ÇÊ¿äÇÑ ÃÖÁ¾ÀÔÀÚ Å©±â·Î ºÐ¼âÇØ Á¤ÇüÈ­Çϸç Å©±â°¡ Á¤ÇüÈ­µÈ ¼®ÅºÀ» °¡¿­¡¤È°¼ºÈ­½ÃÅ°´Â °øÁ¤À¸·Î, ÀçÀÀ°á ¹æ½Ä¿¡ ºñÇØ ³·Àº ºñ¿ëÀ¸·Î »ý»êÀÌ °¡´ÉÇÏ´Ù.

 

Activated carbons are produced from a wide variety of carbon-rich precursor materials such as bituminous coal, anthracite, subbituminous coal, lignite, wood, coconut shells and peat. These materials are converted into activated carbon by either thermal or chemical activation processes. Thermal treatment typically includes steam gasification(activation) and chemical activation uses reactive, inorganic additives at relatively lower temperatures.

Activated carbons produced from bituminous coal can be classified as direct activated or reagglomerated. Direct activation involves sizing the coal to approximately the final particle size required and thermally activating the sized coal. Direct activation can produce a less costly product compared to reagglomeration.

ÈíÂø (Adsorption)

 

ÈíÂø±â´ÉÀº È°¼ºÅº¼Ò¿Í °°Àº ÈíÂøÁ¦ÀÇ ÀüÀÚ±¸Á¶ ¹°Áú, Áö¿À½º¹Î µî ¸À¡¤³¿»õ À¯¹ß ¹°Áú³¢¸® ÈíÂøÀÌ ÀÌ·ç¾îÁö´Â ¹°Áú °£ÀÇ »óÈ£ÀÛ¿ëÀÌ´Ù. ºÐÀÚ±¸Á¶·Î µÈ ¹°ÁúÀº Å°³×ƽ(kinetic) ¿îµ¿À̷п¡ ÀÇÇØ È°¼ºÅº¼ÒÀÇ ´Ù°ø¼º Ç¥¸éÀ¸·Î À¯ÀεȴÙ.

Adsorption results from the interaction of the electronic structure of an adsorbent, such as activated carbon, with an adsorbate, such as a taste-and odor-causing compound like geosmin. Molecular compounds are kinetically attracted to the porous surface area of the carbon.

   
 

 

GAC ¿©°ú (Granular activated carbon filtration)

GAC´Â ¼öó¸® Ç÷£Æ®¿¡¼­ È¿°úÀûÀÎ ¹°¸®Àû ¿©°ú¿ë ¸Þµð¾Æ(media)ÀÎ µ¿½Ã¿¡ ¸À¡¤³¿»õ À¯¹ß¹°Áú ¹× ÄɹÌÄà ¹°ÁúÀ» ÈíÂøÇØ ¼öÁúÀ» º¸È£ÇÑ´Ù. ÀÌ¿¡ ±âÁ¸ ´Ù´Ü°è¿©°ú(MMF)¿¡ GAC¸¦ Á¢¸ñÇϰųª »õ·Î¿î GAC ÇÊÅ͸¦ ¼³°èÇÒ ¶§ ¼ö·ÂÇÐÀû ¿ä±¸»çÇ×, ¿©°úü·ù ½Ã°£, ¿ª¼¼ °¡´É¼º µî ½ÇÁ¦ Àû¿ëÀ» À§ÇÑ ´Ù¾çÇÑ °ËÅä°¡ ÇÊ¿äÇÏ´Ù. ÇÑÆí, ÈíÂø ¼º´É ¹× ¸¶¸ð¿¡ ´ëÇÑ ³»¼º¡¤¹Ðµµ µî GACÀÇ Æ¯¼º»Ó¸¸ ¾Æ´Ï¶ó ±âÁ¸ ÇÊÅ͸¦ GAC·Î ´ëüÇϱâ À§ÇÑ °æÁ¦¼ºµµ °ËÅäµÇ¾î¾ß ÇÑ´Ù. 

 ¿ª¼¼ ¿ä±¸»çÇ×Àº GAC º£µå(bed)ÀÇ ±íÀ̸¦ °áÁ¤ÇÏ´Â µ¥ ¿µÇâÀ» ÁÖ´Â ¿ä¼ÒÀÌ´Ù. ÀÌó·³ ÇÊÅÍ ¼³°è °úÁ¤¿¡¼­´Â ÀûÀýÇÑ º£µå ±íÀ̸¦ °í·ÁÇØ ¸Þµð¾Æ È®Àå ½Ã º£µå »ó´ÜºÎ¿Í ¿ª¼¼ °ø°£ÀÇ ÇϴܺΠ»çÀÌ¿¡¼­ ÃæºÐÇÑ ±æÀÌ·Î °ø°£À» ¼³°èÇØ¾ß ÇÑ´Ù. ¹°ÀÇ ¼Óµµ´Â ÀÌ·¯ÇÑ °ø°£¿¡¼­ Áõ°¡ÇϹǷÎ, °ø°£ »çÀÌÀÇ ÀÏÁ¤ ¼öÁرîÁö È®ÀåµÇ´Â GAC ÇÊÅÍ ³»¿¡¼­ ¼¼Ã´¹èÃâÀÌ È¿°úÀûÀ¸·Î ÀÌ·ç¾îÁ®¾ß ÇÑ´Ù.

±âÁ¸ ÇÊÅ͸¦ °³Á¶ÇØ GAC¸¦ ¼³Ä¡Çϰųª »õ·Î¿î ÇÊÅÍ ¼³°è ½Ã¿¡´Â ¸ð·¡¡¤¹«¿¬Åº ¸Þµð¾ÆÀÇ ¼³Ä¡ ¿ø¸®¿Í À¯»çÇÏ´Ù. ´Ü, ÇÊÅÍ ¹× ÃʱâÀÇ ÀÚ°¥¡¤¸ð·¡ ȤÀº ÇϺιèÃ⡤¸ð·¡ ±¸Á¶Ã¼°¡ GAC ÇÊÅÍÀÇ ¼³Ä¡ Àü¿¡ »ì±Õ¼Òµ¶ÀÌ ÀÌ·ç¾îÁ®¾ß ÇÑ´Ù´Â Á¡Àº ¿¹¿ÜÀÌ´Ù. À̸¦ ÅëÇØ ¿°¼Ò¿Í °°Àº »ì±ÕÁ¦°¡ GAC¿Í ºü¸¥ ¼Óµµ·Î ¹ÝÀÀÇØ ¼Òµ¶ºÎ»ê¹°ÀÌ ¹ß»ýµÇ´Â °ÍÀ» ¹æÁöÇÒ ¼ö ÀÖ´Ù.

¶Ç, ÃÖÁ¾ ¿ª¼¼ ÀÌÀü¿¡ GAC°¡ 24½Ã°£ µ¿¾È ħÁö »óÅ·ΠÀÖ¾î¾ß µÇ¸ç ÀÌÈÄ »õ·Î¿î ÇÊÅÍ´Â Á¤»ó ¼­ºñ½º ¸ðµå·Î ÀüȯµÈ´Ù´Â Á¡¿¡¼­µµ Â÷ÀÌ°¡ ¹ß°ßµÈ´Ù. ÀÌ·¯ÇÑ Ä§Áö °úÁ¤ µ¿¾È GAC ±â°ø±¸Á¶ ³»¿¡ Æ÷ȹµÇ¾ú´ø °ø±â°¡ ºüÁ®³ª°¡°Ô µÇ¾î ¼ø¼öÇÑ ¹°ÀÌ GAC ³»ºÎÇ¥¸éÀ» ¿ÏÀüÈ÷ ä¿î »óÅ·Π¸¸µé ¼ö ÀÖ´Ù.

 

GAC has also shown to be an effective physical filtration medium in water treatment plants, and has the added benefit of providing water quality protection by adsorption of taste and odor compounds or chemical contaminants. Prior to retrofitting an existing multimedia filter with GAC, or designing a new GAC filter, several practical considerations are necessary, including hydraulic requirements, filter on-stream time, and backwash water availability. The properties of the GAC, such as adsorption performance, abrasion resistance and density must be considered as well. Additionally, the effective cost of converting the filter to GAC must be evaluated.

Backwashing requirements are another factor affecting how deep the GAC bed should be, particularly when retrofitting a multimedia filter. The filter design should allow for the optimal expansion while allowing several inches of clearance between the top of the expanded bed and the bottom of the backwash trough. Since the water velocity increases between the troughs, any GAC that is expanded to the level between the troughs will more than likely be washed out of the filter.

The mechanics of installing GAC in a filter retrofit or in a new filter are much the same as for installing sand and anthracite. A notable exception is that the filter and initial gravel/sand or underdrain/sand support must be disinfected prior to installing the GAC. This is because suitable disinfectants, such as chlorine, will rapidly react over GAC, leaving no disinfectant residual.

A second variance is the GAC should be submerged for 24 hours prior to the final backwash before bringing the new filter into service. This soak time allows the air entrapped within the GAC pore structure to be removed and it allows the water to thoroughly wet the GAC internal surface.


   
 

ÀçÀÀ°á ¹æ½ÄÀº ¼®Åº È¥ÇÕ¹° ¿ø¼®À» ºÐ¼âÇÏ°í Á¶°³Åº ÇüÅ·ΠÀÀ°áÇØ º¯È¯½ÃŲ´Ù. Á¶°³ÅºÀº ÇÊ¿ä·Î ÇÏ´Â ÀÔÀÚÅ©±â·Î ºÎ¼­Áö´Âµ¥, ÀÀ°áµÈ ¹°ÁúÀÌ °¡¿­°úÁ¤À¸·Î È°¼ºÈ­µÇ¸é °íÂøÈ­(binder) ¹°ÁúÀº È°¼ºÅº¼Ò ÀÔÀÚ¹°Áú°ú ³»ºÎÀûÀ¸·Î °á¼ÓµÇ¾î ±×·¡ÆÄÀÌÆ®(graphite) ±¸Á¶·Î º¯ÇÑ´Ù. ÀçÀÀ°á ¹æ½ÄÀÇ GAC ¹× Á÷Á¢ È°¼ºÈ­ ¹æ¹ýÀÇ GAC ¹°Áú¿¡ ´ëÇÑ °æµµ¡¤¸¶¸ð¼ºÀº ¼­·Î ºñ±³µÇ±âµµ Çϳª, ÀçÀÀ°á ¹æ½ÄÀÇ GAC°¡ ±ÕÁúÇÑ ±â°ø±¸Á¶(more homogenous pore)¸¦ °¡Á® ƯÁ¤ À¯±â¿À¿°¹°ÁúÀ» Á¦°ÅÇÏ´Â µ¥ ´õ¿í È¿°úÀûÀÌ´Ù.

¿­Ã³¸® °úÁ¤¿¡¼­´Â ź¼Ò¼ººÐÀÇ ¸ðµç ¿øÀç·á°¡ ÀÀÃà¹ÝÀÀ¿¡ ÀÇÇØ Á¡Â÷ Ä¿´Ù¶õ Å©±âÀÇ ¹æÇâÁ·ÆÇ(larger aromatic plate) ±¸Á¶Ã¼·Î º¯ÇÑ´Ù. ¿©±â¼­ ±¸Á¶Ã¼ ¹Ðµµ´Â ¿øÀç·á Ư¼º¿¡ µû¶ó ¿µÇâÀ» ¹ÞÀ¸¹Ç·Î, ¿ªÃ»Åº°ú °°ÀÌ ¿øÀç·á°¡ Ä¡¹ÐÇÏ¸é ±¸Á¶Ã¼ ¹Ðµµ´Â ´õ¿í Ä¿Áø´Ù.

Æò¸é ÆÇ»óü ±¸Á¶ÀÇ ±×·¡ÆÄÀÌÆ® ÆÇ(flat graphite platelets)Àº GAC ¹°Áú ³»¿¡ ºÒ±ÔÄ¢ÀûÀ¸·Î ¹èÄ¡µÇ¾î ÈíÂø¿¡ ÇÊ¿äÇÑ Á¤µµ·Î È®ÀåµÈ ³»ºÎ±¸Á¶°¡ Çü¼ºµÇ¸ç, È°¼ºÅº¼Ò »ý»ê °øÁ¤À» ÅëÇØ ´Ù¾çÇÑ Å©±âÀÇ ±â°øÀ» °¡Áø ±¸Á¶Ã¼°¡ ¸¸µé¾îÁø´Ù. ÀÌ´Â ±×·¡ÆÄÀÌÆ® ÆÇ°ú °áÇÕÇÑ ÇüÅ·ΠÇü¼ºµÈ ±â°øÀ¸·Î, °­ÇÑ ¹°¸®Àû ÈíÂø ±â´ÉÀ» °¡Áø ÈíÂøÁ¦ ¹°ÁúÀÌ ¸¸µé¾îÁü¿¡ µû¶ó ÀÌ·¯ÇÑ ±¸Á¶·Î ÈíÂøµÇ´Â ÈíÂøÀúÀå·®Àº ÃÖ´ëÈ­µÈ´Ù.  

 

 

Reagglomeration involves first pulverizing and briquetting the coal with organic binders. The briquettes are stage crushed to achieve the desired particle size. Once the reagglomerated material has been activated, the binder is also converted to a graphitic structure that interconnects the activated coal particles. The hardness and abrasion characteristics of reagglomerated and direct activated GAC are often comparable.  However, reagglomerated carbons tend to have a more homogenous pore structure that can be better for certain organic contaminant removal.

During thermal treatment, all the carbonaceous raw material reacts by means of condensation reactions to form increasingly larger aromatic plate structures. The density of the structure is influenced by the characteristics of the raw materials. The denser the raw material, such as bituminous coal, the more extensive the structures will be. These extended flat graphite platelets are arranged randomly within the GAC particle to provide the extensive internal structure needed for adsorption to occur.

The activated carbon production process also yields a structure with a broad range of pore sizes. These pores, or voids, in conjunction with the graphite platelets, generate a material with the strongest physical adsorption forces available in an adsorbent, coupled with the largest volume to store the adsorbed materials.

   
 

 

GACÇÊÅÍ ¿îÀüÀÇ ±ÇÀå»çÇ× (GAC Filter Operation recommendations) 

 

ÀüÇüÀûÀÎ GAC ÇÊÅÍ´Â ÀÏ¹Ý ´Ù´Ü°è¿©°ú(MMF) ÇÊÅÍ¿Í µ¿ÀÏÇÑ ¿îÀü»ó °áÇÔ¿¡ ¹Î°¨ÇÏ°Ô ¹ÝÀÀÇÑ´Ù. ¶§¹®¿¡ ÇÊÅÍ ³»¿¡¼­ ½ÇÁ¦·Î ¿îÀüµÉ ¶§ ¿ª¼¼ ¹× Ãʱ⠰¡µ¿ °úÁ¤¿¡¼­ ¹°ÀÇ ¼Óµµ°¡ ±Þ°ÝÈ÷ º¯È­µÇ¼­´Â ¾È µÈ´Ù. ÀÌ¿¡ ÇÊÅÍ ÀåÄ¡ ¼³°è ½Ã Àüü ¿îÀü½Ã°£ ³»¿¡¼­ ¿ª¼¼·Î ÀüȯÇÏ´Â µ¥ ÃÖ¼Ò 30ÃÊÀÇ ½Ã°£ÀÌ ÁÖ¾îÁ®¾ß Çϸç, ÀåÄ¡°¡ Á¤»ó¿îÀüÀ¸·Î µ¹¾Æ¿À´Â µ¥¿¡´Â ÃÖ¼Ò 10ºÐÀÇ ½Ã°£ÀÌ ÇÊ¿äÇÏ´Ù. µû¶ó¼­ ÀÛ¾÷ÀÚ´Â ¿ª¼¼ °úÁ¤ µ¿¾È ¹°ÀÇ ³óµµ º¯È­¸¦ ÃæºÐÈ÷ ÀνÄÇØ ¿ª¼¼°úÁ¤À» ÁÖ±âÀûÀ¸·Î °üÂûÇØ¾ß ÇÑ´Ù.

ÇÑÆí, ÇÊÅ͸¦ È¿°úÀûÀ¸·Î °ü¸®Çϱâ À§Çؼ­´Â ¿¬°£ 1ȸÀÇ ÇٽɺÎÇ°(core sample) äÃë°¡ ÇÊ¿äÇÏ´Ù. ÀÌ´Â ÇÊÅÍÀÇ Çٽɺο¡¼­ Á¤È®ÇÑ ½Ã·á¸¦ äÃëÇÑ ÈÄ, äÃëµÈ ½Ã·á¿¡ ´ëÇÑ ¿ä¿Àµå°Ë»ç(iodine number test)¸¦ ½Ç½ÃÇØ ÀÜ¿©´É·Â(residual activity) ¿©ºÎ¸¦ Á¶»çÇÑ´Ù. °ú°Å µ¥ÀÌÅÍ¿¡ µû¸£¸é °Ë»ç¸¦ ÅëÇØ ¿ä¿Àµå¼öÄ¡(iodine number)°¡ 450¡­550 »çÀÌ·Î Á¶»çµÈ °æ¿ì ºü¸¥ ½ÃÀÏ ³»¿¡ GAC¸¦ ´Ù½Ã È°¼ºÈ­½ÃÄÑ »ç¿ëÇϰųª »õ·Î¿î °ÍÀ¸·Î ±³È¯ÇØ¾ß ÇÑ´Ù.

   
 

 

   
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