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¹Ì±¹ ÃÖ´ë Çϼöó¸®ÀåÀÇ »ê¼º ¼ÒÈ­ ½Ã½ºÅÛ °³¼± À§ÇØ ºê¶ó¿î ¾Ø ÄݵåÀ£ ¼±ÅÃ



¹Ì±¹ ¿ÀÇÏÀÌ¿ÀÁÖ ÄÝ·³¹ö½º½Ã(City of Columbus)´Â »ç¿ì½º¿Ã¸® Çϼöó¸®Àå(SWWTP ; Southerly Wastewater Treatment Plant)¿¡ »õ·Ó°í °³¼±µÈ »ê¼º»ó ¼ÒÈ­ ½Ã½ºÅÛ(APD ; acid phase digestion system)À» À§ÇÑ Àü¹® ¼³°è ¼­ºñ½º¸¦ Á¦°øÇϱâ À§ÇØ ºê¶ó¿î(Brown)°ú ÄݵåÀ£(Caldwell)ÀÌ À̲ô´Â ÆÀÀ» ¿µÀÔÇß´Ù.


ÀÌ SWWTP´Â 288¿¡ÀÌÄ¿(116¸¸5õ494§©) ºÎÁö¿¡ 53¸¸ ¸í ÀÌ»óÀÇ Áֹε鿡°Ô Çϼöó¸® ¼­ºñ½º¸¦ Á¦°øÇÏ´Â ¹Ì±¹¿¡¼­ °¡Àå Å« ½Ã¼³ Áß ÇϳªÀÌ´Ù. ÇÏ·ç Æò±Õ À¯·®ÀÌ 1¾ï2õ¸¸ °¶·±(45¸¸4õ249§³)ÀÎ ÀÌ È¸»çÀÇ 2°³ÀÇ ¼ÒÈ­°øÁ¤Àº 2°³ÀÇ ½½·¯Áö ÀúÀå ½Ã¼³, 6°³ÀÇ ¸Þź ¼ÒÈ­Á¶ ¹× 3°³ÀÇ »ê¼º»ó ¼ÒÈ­Á¶(APD)·Î ±¸¼ºµÇ¾î ÅäÁö Àû¿ë ¹× ±âŸ À¯ÀÍÇÑ Å¬·¡½º B »ý¹°°íÇü¹°(biosolid) Á¦Ç°À» »ý»êÇÑ´Ù. 

 

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¹Ì±¹ ¿ÀÇÏÀÌ¿ÀÁÖ ÄÝ·³¹ö½º½Ã´Â ¹Ì±¹ ÃÖ´ëÀÇ Çϼöó¸®ÀåÀÎ »ç¿ì½º¿Ã¸® Çϼöó¸®Àå(SWWTP )ÀÇ »ê¼º»ó ¼ÒÈ­ ½Ã½ºÅÛ(APD) °³¼±À» À§ÇØ Àü¹® ¼³°è ¼­ºñ½º¸¦ Á¦°øÇϱâ À§ÇØ ºê¶ó¿î(Brown)°ú ÄݵåÀ£(Caldwell)ÀÌ À̲ô´Â ÆÀÀ» ¿µÀÔÇß´Ù. [»çÁøÃâó = ºê¶ó¿î(Brown)°ú ÄݵåÀ£(Caldwell)]


 

¡á SWWTP µðÁ¦½ºÅÍ °øÁ¤ È®Àå(Digester Process Expansion)

2´Ü°è ÀÌ ÇÁ·ÎÁ§Æ®´Â APD ¹× ±âŸ ³ëÈÄ º¸Á¶ Àåºñ¸¦ º¹±¸ÇÏ¿© ´Ù¾çÇÑ ¿ë·® Çâ»ó°ú ÀçÁ¤Àû ÆíÀÍ°ú ÇÔ²² °­·ÂÇÏ°í ź·ÂÀûÀÎ »ê¼º ´Ü°è ¼ÒÈ­ ½Ã½ºÅÛÀ» ±¸ÃàÇÑ´Ù.


ÄÝ·³¹ö½º½Ã »ç¿ì½º¿Ã¸® Çϼöó¸®Àå(SWWTP)ÀÇ Ç÷£Æ® °ü¸®ÀÚÀÎ ´Ù¸° ¿ÍÀÌÁî(Darin Wise)´Â¡°ÀÌ Áß¿äÇÑ ÇÁ·ÎÁ§Æ®¸¦ ÅëÇØ ¿ì¸®´Â °è¼ÓÇؼ­ ¾ÈÁ¤¼ºÀ» °³¼±ÇÏ°í È¿À²¼ºÀ» ³ôÀÌ¸ç ±ÔÁ¦ ÁöħÀ» ÃæÁ·ÇÏ°í Áõ°¡ÇÏ´Â °í°´ ±â¹ÝÀ» À§ÇÑ ¼­ºñ½º¸¦ Çâ»óÇÒ ¼ö ÀÖ´Ù. ¿ì¸®´Â ½ÃÀÇ À¯ÀÍÇÑ Àç»ç¿ë ¹× ȯ°æ ¸ñÇ¥¸¦ °ø°íÈ÷ Çϱâ À§ÇØ ¸î °¡Áö Çõ½ÅÀûÀÎ ÇÁ·Î¼¼½º¸¦ Æò°¡ÇÏ°í ÀÖ´Ù¡±¶ó°í ¸»Çß´Ù.


ÀÌ ÇÁ·ÎÁ§Æ®´Â ¹°¿¬±¸Àç´Ü(Water Research Foundation)°ú ÇÔ²² ÇÏ´Â ÃÖ÷´Ü ÇÁ·ÎÁ§Æ®ÀÎ Acid+ ¼ÒÈ­(Acid+ Dietiation)¸¦ Æ÷ÇÔÇÑ Çõ½ÅÀûÀÎ ¼ÒÈ­Á¶ °øÁ¤À» °èȹÇÏ°í Æò°¡ÇÒ ¼ö ÀÖ´Â ÇÑ ¼¼´ë¿¡ ÇÑ ¹ø ÀÖÀ»±î ¸»±îÇÑ ±âȸ·Î ¿©°ÜÁö°í ÀÖ´Ù.


Acid+´Â ¿î¿µ ¹× À¯Áö°ü¸® ºñ¿ëÀ» Àý°¨ÇÏ¿© °íÇ°Áú ¹ÙÀÌ¿À¼Ö¸®µå(A±Þ) ¹× ¹ÙÀÌ¿À°¡½º Á¦Ç°À» »ý»êÇÏ°í ±âÁ¸ Àåºñ¿¡ ´ëÇÑ °£´ÜÇÑ °³·®À¸·Î ºñ¿ë È¿À²ÀûÀÎ ¿µ¾ç¼Ò ȸ¼ö¸¦ ´Þ¼ºÇÔÀ¸·Î½á Æó¼ö ó¸®ÀÇ Çõ½ÅÀ» ÀÏÀ¸Å³ ¼ö ÀÖ´Â ÀáÀç·ÂÀ» °¡Áö°í ÀÖ´Ù.


ÀÎ(P) ȸ¼ö ¿¬±¸´Â ³ó¾÷¿ë °íÇ°Áú ³·Àº ÀÎ ¹ÙÀÌ¿À ¼Ö¸®µå(low phosphorus biosolid)¸¦ »ý»êÇÏ´Â ¿É¼ÇÀ» Æò°¡ÇÏ´Â µ¿½Ã¿¡ ±¹°¡ Çã¿ë ÇÑ°è¿¡ µû¶ó ÇâÈÄ ¿µ¾ç¼Ò ºÎÇÏ Áõ°¡¸¦ ´Ù·é´Ù. Àç»ç¿ëÇϱâ Àü¿¡ ´Ù¿î½ºÆ®¸² ¹ÙÀÌ¿À¼Ö¸®µå¿¡ ÀûÀçµÇ´Â ¿À¿°¹°À» ½Äº°, Á¦ÇÑ ¶Ç´Â Æı«ÇÏ´Â ¹æ¾Èµµ °í·ÁµÇ°í ÀÖ´Ù.


¶ÇÇÑ Áö¹æ, ±â¸§ ¹× ±â¸§ °ø±Þ¼ÒÀÇ »ý¼º¿¡ ´ëÇÑ Á¶»ç¿Í À¯±â¹°¡¤½ÄÇ° Æó±â¹°ÀÌ Æ÷ÇÔµÈ ½½·¯ÁöÀÇ °øµ¿ ¼ÒÈ­ °¡´É¼º ºÐ¼®Àº ¹ÙÀÌ¿À°¡½º »ý»êÀ» ±Ø´ëÈ­ÇÏ°í ´ëü ¼öÀÍ¿øÀ» âÃâÇÏ´Â ÇÁ·ÎÁ§Æ®ÀÇ ÀϺÎÀÌ´Ù.


¿©±â¿¡´Â ¿ÀÇÏÀÌ¿À(Ohio) ÁߺÎÁö¿ªÀÇ À¯±â Æó±â¹° °¡¿ë¼º ¹× °ø±ÞÀÚ¿¡ ´ëÇÑ Æò°¡¿Í À¯ÀÍÇÑ Àç»ç¿ëÀ» À§ÇØ °øµ¿ ¼ÒÈ­Á¦¸¦ ÅëÇÕÇÏ´Â µ¥ ÇÊ¿äÇÑ ¸ðµç ¼ÒÈ­ ½Ã½ºÅÛ °³¼±ÀÌ Æ÷ÇԵȴÙ.


ºê¶ó¿î(Brown)°ú ÄݵåÀ£(Caldwell) ÆÀÀº °Ç¼³ Áß¿¡ ¿¹ºñ ¼³°è, »ó¼¼ ¼³°è ¹× ¿£Áö´Ï¾î¸µ ¼­ºñ½º¸¦ Á¦°øÇÑ´Ù. Áß¿äÇÑ ¼³°è ±¸¼º¿ä¼Ò´Â ±¹°¡ ¿À¿°¹°Áú ¹èÃ⠽ýºÅÛ ¿ä°ÇÀ» ÁؼöÇÏ´Â °Ç¼³ Áß ¹ßÀü¼ÒÀÇ Áö¼ÓÀûÀÌ°í ¾ÈÀüÇϸç È¿À²ÀûÀÎ ¿îÀüÀ» Æ÷ÇÔÇÑ´Ù.


ÀÌ ÆÀÀº ´Ù¾çÇÑ Á¶°Ç Æò°¡¿Í Ÿ´ç¼º Á¶»ç¸¦ ¼öÇàÇÏ´Â °Í»Ó¸¸ ¾Æ´Ï¶ó °Ç¼³ ºñ¿ë ÃßÁ¤Ä¡¸¦ ÀÛ¼ºÇÏ°í ÀÔÂû ¼­·ù¸¦ ÀÛ¼ºÇÏ°í ÀÚ°ÝÀ» °®Ãá ±â¾÷µéÀ» Æò°¡ÇÏ´Â µ¥ µµ¿òÀ» ÁÙ °ÍÀÌ´Ù.


ºê¶ó¿î(Brown)°ú ÄݵåÀ£(Caldwell)l ÇÁ·ÎÁ§Æ® °ü¸®ÀÚÀÎ ´ÜÅ× ÇÇ¿À¸®³ë(Dante Fiorino)´Â ¡°¹Ì·¡ ¼ºÀå, ÀÚ¿ø ȸ¼ö ¹× Áö¼ÓÀûÀÎ ±ÔÁ¦ Áؼö¸¦ À§ÇÑ Áö¼Ó °¡´ÉÇÑ °èȹÀ̶ó´Â ºñÀüÀ» ´Þ¼ºÇϱâ À§ÇØ ÄÝ·³¹ö½º½Ã¿Í Çù·ÂÇÏ°Ô µÈ °ÍÀ» ±â»Ú°Ô »ý°¢ÇÑ´Ù¡±¶ó°í ¸»Çß´Ù.

 

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¹Ì±¹¿¡¼­ °¡Àå Å« ½Ã¼³ Áß ÇϳªÀÎ »ç¿ì½º¿Ã¸® Çϼöó¸®Àå(SWWTP)Àº 288¿¡ÀÌÄ¿(116¸¸5õ494§©) ºÎÁö¿¡ 53¸¸ ¸í ÀÌ»óÀÇ Áֹε鿡°Ô Çϼöó¸® ¼­ºñ½º¸¦ Á¦°øÇϴµ¥,  ÇÏ·ç Æò±Õ À¯·®ÀÌ 1¾ï2õ¸¸ °¶·±(45¸¸4õ249§©)ÀÎ ÀÌ Ã³¸®ÀåÀÇ 2°³ÀÇ ¼ÒÈ­°øÁ¤Àº 2°³ÀÇ ½½·¯Áö ÀúÀå ½Ã¼³, 6°³ÀÇ ¸Þź ¼ÒÈ­Á¶ ¹× 3°³ÀÇ »ê¼º»ó ¼ÒÈ­Á¶(APD)·Î ±¸¼ºµÇ¾î ÀÖ´Ù. [»çÁøÃâó = »ç¿ì½º¿Ã¸® Çϼöó¸®Àå(SWWTP)]


 

´ÜÅ× ÇÇ¿À¸®³ë(Dante Fiorino)´Â ÀÌ¾î ¡°¿ì¸® ÆÀÀº ÄÝ·³¹ö½º½Ã°¡ ÇöÀç ¹× ¹Ì·¡ÀÇ Çϼö ¿ä±¸ »çÇ×À» ÃæÁ·ÇÏ´Â Çõ½ÅÀûÀÎ ¼Ö·ç¼ÇÀ» ½Äº°ÇÏ´Â µ¿½Ã¿¡ °ªºñ½Ñ ÀÚº» ÅõÀÚ¸¦ Á¦°ÅÇϰųª ¿¬±âÇÔÀ¸·Î½á ¿ä±Ý ³³ºÎÀÚÀÇ ºÎ´ãÀ» ÁÙÀÏ ¼ö ÀÖµµ·Ï µµ¿ï Áغñ°¡ µÇ¾î ÀÖ´Ù¡±¶ó°í µ¡ºÙ¿´´Ù.


ÃÖ±Ù Acid+ ¼ÒÈ­ ¿¬±¸ ¹× ¿¹ºñ ¼³°è°¡ ÁøÇàµÇ°í ÀÖ¾î 2022³â ¸»±îÁö »ó¼¼ ¼³°è¸¦ ¿Ï·áÇÒ ¿¹Á¤ÀÌ¸ç °Ç¼³ ´Ü°èÀÇ È°µ¿À» À§ÇÑ Åä´ë¸¦ ¸¶·ÃÇÏ°í ÀÖ´Ù.


[¿ø¹®º¸±â]


City of Columbus selects Brown and Caldwell for pioneering wastewater acid digestion project

Wastewater treatment improvements with associated sustainable revenue streams under evaluation



COLUMBUS, Ohio - The City of Columbus has engaged a team led by Brown and Caldwell to deliver professional design services for a new and improved acid phase digestion system at its Southerly Wastewater Treatment Plant (SWWTP).


The SWWTP is one of the largest facilities of its kind in the country, situated on 288 acres and serving over 530,000 residents. With an average flow of 120 million gallons per day, its two-phase digestion process consists of two sludge storage silos, six methane phase digesters, and three acid phase digesters (APDs) to produce a Class B biosolids product for land application and other beneficial uses.


The project, SWWTP Digester Process Expansion 

Phase II, will rehabilitate the APDs and other aging ancillary equipment to create a robust and resilient acid phase digestion system with a multitude of capacity-enhancing, financial benefits.


¡°This important project will allow us to continue to improve reliability, increase efficiency, meet regulatory guidelines, and enhance service for a growing customer base. We¡¯re evaluating several innovative processes to solidify the City¡¯s beneficial reuse and environmental goals.¡±Columbus SWWTP Plant Manager Darin Wise.


The project is considered a once-in-a-generation opportunity to plan and evaluate innovative digester processes, including Acid+ digestion, a cutting-edge project with the Water Research Foundation. 


Acid+ has the potential to revolutionize wastewater treatment by reducing operations and maintenance expenses, yielding higher quality biosolids (Class A) and biogas products, and achieving cost-effective nutrient recovery with simple retrofits to existing equipment.


A phosphorous recovery study will evaluate options to produce high-quality, low phosphorus biosolids for agricultural use while addressing future nutrient load increases in line with national permit limits.  Considerations will be included to identify, restrict, or possibly destroy emerging contaminants loading in downstream biosolids before reuse.


Furthermore, an investigation into the creation of a fats, oils, and greases receiving station and feasibility analysis of co-digestion - sludge with organics/food waste ? to supercharge biogas production and create an alternative revenue stream, is part of the project. 


This includes an assessment on availability and providers of organic waste in the central Ohio region and any digestion system improvements required to incorporate co-digestion for beneficial reuse.


The Brown and Caldwell team will provide preliminary design, detailed design, and engineering services during construction. A critical design component includes the continual, safe, and efficient operation of the plant during construction in compliance with National Pollutant Discharge Elimination System requirements.


As well as undertaking various condition assessments and feasibility studies, the team will prepare construction cost estimates, develop bid documentation, and help evaluate qualified firms.


¡°We¡¯re excited to partner with Columbus to achieve their vision of sustainable planning for future growth, resource recovery, and continual regulatory compliance,¡± said Brown and Caldwell Project Manager Dante Fiorino.


 ¡°Our team is ready to help the City identify innovative solutions to meet current and future wastewater needs while simultaneously lessening the burden on ratepayers by eliminating or deferring expensive capital investments.¡±


With Acid+ digestion research and preliminary design recently underway, detailed design is scheduled for completion by the end of 2022, paving the way for construction-phase activities.


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