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[2019] [¹Ì±¹] ºí·¢ ¾Ø ºñÄ¡, Ķ¸®Æ÷´Ï¾Æ¿¡ »õ·Î¿î ¹°ÀçÈ°¿ë ó¸®Àå ¿Ï°ø
À̸§ °ü¸®ÀÚ waterindustry@hanmail.net ÀÛ¼ºÀÏ 2019.12.10 Á¶È¸¼ö 517
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[¹Ì±¹] ºí·¢ ¾Ø ºñÄ¡, Ķ¸®Æ÷´Ï¾Æ¿¡ »õ·Î¿î ¹°ÀçÈ°¿ë ó¸®Àå ¿Ï°ø

 


Ķ¸®Æ÷´Ï¾Æ(California)ÀÇ ÆÄ¼Ò ·Îºí½º(Paso Robles)´Â ÃÖ±Ù Æó¼öó¸®Àå(WWTP)¿¡ »õ·Î¿î Á¦3Â÷ 󸮽ü³ÀÇ ¿Ï°øÀ» ÃàÇÏÇϸç, ¹° ºÎÁ· ¹®Á¦¸¦ ´Ù·ç´Â ÁÖ¿¡¼­ ¾à 3¸¸ ¸íÀÇ ÁÖ¹ÎÀÌ °ÅÁÖÇÏ´Â µµ½ÃÀÇ ¹° °ü¸®¸¦ °­È­Çß´Ù.


ºí·¢ ¾Ø ºñÄ¡(Black & Veatch)´Â 2Â÷ ó¸® ÇÁ·ÎÁ§Æ®¿Í 3Â÷ ó¸® ÇÁ·ÎÁ§Æ®¿¡¼­ ¸ðµÎ ±â·Ï µðÀÚÀÌ³Ê¿Í ¿£Áö´Ï¾î¸¦ ¿ªÀÓÇßÀ¸¸ç, ¿Âõµµ½Ã·Î ¾Ë·ÁÁø 130³â µµ½Ã ¿ª»ç»ó °¡Àå Å©°í º¹ÀâÇÑ ÀÎÇÁ¶ó ÇÁ·ÎÁ§Æ® Áß Çϳª·Î ¾Ë·ÁÁ® ÀÖ´Ù.


'ÆÄ¼Ò ·Îºí½º(Paso Robles) WWTP ÇÁ·ÎÁ§Æ®'´Â Ķ¸®Æ÷´Ï¾Æ°¡ Áö¼Ó°¡´ÉÇÏ°í, ź·ÂÀûÀ̸ç, ½Å·ÚÇÒ ¼ö ÀÖ´Â ¹° ¼Ö·ç¼Ç¿¡ Á¡Á¡ ´õ ÁýÁßÇÏ°í ÀÖ´Â °¡¿îµ¥ ÀÌ·ç¾îÁ³´Ù.


Ķ¸®Æ÷´Ï¾ÆÀÇ ´Ù¸¥ ¸¹Àº µµ½Ãµéó·³, ¹°Àº ÇÁ¸®¹Ì¾ö±ÞÀ̸ç, ÆÄ¼Ò ·Îºí½º(Paso Robles)´Â µµ½Ã °ø¿øÀ̳ª °ñÇÁÀå°ú °°Àº °ø°ø Áö¿ª¿¡ ¹°À» °ø±ÞÇϱâ À§ÇØ ¾çÁúÀÇ ÀçÈ°¿ë ¹°À» »ý»êÇÏ´Â °ÍÀ» Æ÷ÇÔÇÏ´Â ¸¶½ºÅÍÇ÷£À» °¡Áö°í ÀÖ´Ù.


ÆÄ¼Ò ·Îºí½º(Paso Robles) ÁöÇϼö À¯¿ª¿¡¼­ ÁöÇϼö¸¦ ÆÛ ¿Ã¸± Çʿ並 ÁÙÀÓÀ¸·Î½á, WWTP ÇÁ·ÎÁ§Æ®´Â µµ½ÃÀÇ »ó¼öµµ °ø±ÞÀ» °­È­Çϸ鼭 Áö¼Ó°¡´É¼ºÀ» ±¸ÃàÇϴµ¥ µµ¿òÀ» ÁØ´Ù.


ÀÌ ÇÁ·ÎÁ§Æ®´Â ÆÄ¼Ò ·Îºí½º(Paso Robles)¿¡°Ô ¹°°ú ÇÏ¡¤Æó¼ö ¼­ºñ½º¸¦ Á¦°øÇÑ ºí·¢ ¾Ø ºñÄ¡(Black & Veatch)ÀÇ ¿ª»ç¿¡ ¹ÙÅÁÀ» µÎ°í ÀÖ´Ù. 2008³â¿¡´Â ÇÏ·ç 490¸¸ °¶·±(mgd)ÀÇ ÇÇÅ© ¿ë·®À» °¡Áø ¿ø·¡ÀÇ WWTP¸¦ ¾÷±×·¹À̵åÇϱâ À§ÇØ ¼±Á¤µÇ±âµµ Çß´Ù.


ÀÌ·¯ÇÑ °³¼±Àº ³ëÈÄÈ­µÈ Àåºñ¸¦ ¾÷µ¥ÀÌÆ®ÇÏ°í »õ·Î¿î ¹èÃâ Çã°¡¸¦ ÁؼöÇØ¾ß ÇÏ´Â Çʿ伺¿¡ ÀÇÇØ ÃßÁøµÇ¾ú´Ù. ±× ÇÁ·ÎÁ§Æ®´Â 2015³â¿¡ ¿Ï¼ºµÇ¾ú´Ù.


¸¶½ºÅÍÇ÷£ÀÇ ´ÙÀ½ ´Ü°è·Î ³Ñ¾î°¥ ¶§°¡ µÇÀÚ, ½Ã´Â À̹ø¿¡µµ ºí·¢ ¾Ø ºñÄ¡(Black & Veatch) 3Â÷ 󸮽ü³¿¡ ´ëÇÑ ¿¹ºñÀûÀÌ°í »ó¼¼ÇÑ ¼³°è¿Í °Ç¼³À» ½Ç½ÃÇϱâ À§ÇØ ´Ù½Ã ºí·¢ ¾Ø ºñÄ¡(Black & Veatch)ÀÇ ÀÌ »õ·Î¿î °úÁ¦´Â À¯ÀÍÇÑ Àç»ç¿ëÀ» À§ÇØ 'ŸÀÌƲ(Title) 22'¸¦ ÁؼöÇÏ´Â ÀçÈ°¿ë¼ö¸¦ »ý»êÇÑ´Ù.


Á¦3Â÷ 󸮽ü³ ÇÁ·ÎÁ§Æ®¿¡´Â ¾ÆÄí¾Æ-¿¡¾î·Îºò õ µð½ºÅ© ¿©°ú ÇÁ·Î¼¼½º(Aqua-Aerobic cloth disc filtration process)¿Í ä³Î ³» Æ®·ÎÀÌ Àڿܼ±(UV) ±¤ ¼Òµ¶(in-channel Trojan ultraviolet (UV) light disinfection) µî ¿©·¯ ±¸¼º ¿ä¼Ò°¡ Æ÷ÇԵǾú´Ù.


UV ¼Òµ¶Àº ÀçÈ°¿ëµÈ ¹° ºÐ¹è ½Ã½ºÅÛÀ¸·Î ¼Òµ¶ ºÎ»ê¹°ÀÌ Çü¼ºµÉ °¡´É¼ºÀ» Á¦°ÅÇϱâ À§ÇØ ºñ¿ë È¿À²ÀûÀÎ È­ÇÐ ¼Òµ¶ ´ë½Å¿¡ ¼±ÅõǾú´Ù.


±âÁ¸ÀÇ 2Â÷ ¸íȮȭ±â´Â ¿ëµµ º¯°æµÇ¾î »õ·Î¿î ¿©°ú °øÁ¤ÀÇ »ó·ù¿¡ ÀÖ´Â ÆòÁØÈ­ À¯¿ªÀ¸·Î ÀüȯµÇ¾ú´Ù. ÀÌ ÇÁ·ÎÁ§Æ®´Â ¶ÇÇÑ ÀçÈ°¿ëµÈ ¹°À» ÀúÀåÇϱâ À§ÇØ ÇöÀå ¿¬¸ø Áß Çϳª¸¦ °³Á¶ÇÏ´Â °ÍÀ» Æ÷ÇÔÇß´Ù.


ÀÌ ½Ã¼³µéÀº ¶ÇÇÑ ¼ÒÈ­µÈ ½½·¯Áö Å»¼ö ½Ã½ºÅÛ¿¡¼­ ³ª¿À´Â ¿©°ú¹°·ÎºÎÅÍ ¾Ï¸ð´Ï¾Æ, Áú»ê¿°, ÀÎ(P)À» Á¦°ÅÇϴ ÷´Ü ¿µ¾ç¼Ò ¼öÈ® ½Ã½ºÅÛÀ» °®Ãß°í ÀÖ´Ù.


¿©°ú¹°Àº Ä¡·á¸¦ ¹ÞÁö ¾Ê°í ¹è°ü¿¡ ½ºÆ®·çºñÆ®(struvit)°¡ ÃàÀûµÇ¾î Ä¡·á °úÁ¤À» ¾ïÁ¦ÇÏ°í ÀÖ¾ú´Ù. ¿µ¾ç¼Ò ¼öÈ® ½Ã½ºÅÛÀº ¼º°¡½Å ½ºÆ®·çºñÆ®¸¦ Á¦°ÅÇÏ°í »ó¾÷ÀûÀÎ ¼öÁØÀÇ ºñ·á¸¦ ¸¸µå´Âµ¥ »ç¿ëµÈ´Ù.


½Ã´Â °øÀå Á¤ºñ ¸ñÀû ¿Ü¿¡ ½Ã¼³ °Ç¼³ºñ¿ëÀ» »ó¼âÇϱâ À§ÇØ ºñ·á ¸¶ÄÉÆÃÀ» ¹úÀÌ°í ÀÖ´Ù. ÀÌ ¿µ¾ç¼Ò ¼öÈ® ½Ã½ºÅÛÀº Ķ¸®Æ÷´Ï¾Æ ÁÖ¿¡¼­ óÀ½ ÀÖ´Â °ÍÀÌ´Ù.


ºí·¢ ¾Ø ºñÄ¡(Black & Veatch)ÀÇ ¾Æ½´Å佬 ½Ã·ÑÄ«(Ashutosh Shirolkar) ÇÁ·ÎÁ§Æ® ¸Å´ÏÀú´Â "ºí·¢ ¾Ø ºñÄ¡´Â ƯÈ÷ ¹° ºÎÁ· Áö¿ª¿¡ Çõ½ÅÀûÀÎ ÇÏ¡¤Æó¼ö ÀçÈ°¿ë°ú Àç»ç¿ë ¼Ö·ç¼ÇÀ» Á¦°øÇÔÀ¸·Î½á ¾î·Á¿î ¹° ¼ö¿ä¸¦ ÇØ°áÇÑ ¿À·£ ¿ª»ç¸¦ °¡Áö°í ÀÖ´Ù"°í ¸»Çß´Ù.


 ¾Æ½´Å佬 ½Ã·ÑÄ«(Ashutosh Shirolkar) ÇÁ·ÎÁ§Æ® ¸Å´ÏÀú´Â À̾î "ÀçÈ°¿ë°ú Àç»ç¿ë Àü·«Àº °è¼Ó ÁøÈ­ÇÏ°í ÀÖ´Ù"¶ó¸é¼­ "ÇѶ§ Æó¼ö À¯Ãâ¹°À» ó¸®Çϱâ À§ÇÑ Ã¢ÀÇÀûÀÎ ÇØ°áÃ¥À¸·Î ¿©°ÜÁ³´ø °ÍÀÌ ÀÌÁ¦´Â ¾ÈÁ¤ÀûÀÌ°í ź·ÂÀûÀÎ ¹° °ø±ÞÀ» º¸ÀåÇÏ´Â Áß¿äÇÑ µµ±¸°¡ µÇ¾ú´Ù"¶ó°í °­Á¶Çß´Ù.


ƯÈ÷, ±×´Â "¿ì¸® ÆÀÀº º¹ÀâÇÑ ±ÔÁ¦ ȯ°æ Ž»ö, ÀÌÁúÀûÀÎ ÀÌÇØ °ü°èÀÚÀÇ Á¶Á¤, ÀÚ±Ý Áö¿ø ¹®Á¦ µî ÀÌ·¯ÇÑ ´ë±Ô¸ð ÇÏ¡¤Æó¼ö ó¸® ÇÁ·ÎÁ§Æ®¸¦ ó¸®ÇÏ¿© ¾à¼ÓÇÑ ´ë·Î ÀÌÇàÇÏ´Â ÇÁ·ÎÁ§Æ®¸¦ ¿Ï·áÇÒ ¼ö ÀÖ´Â Àü·Ê ¾ø´Â ´É·ÂÀ» °¡Áö°í ÀÖ´Ù"°í ¸»Çß´Ù.


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1915³âºÎÅÍ ¿ì¸®´Â ÄÁ¼³ÆÃ, ¿£Áö´Ï¾î¸µ, °Ç¼³, ¿î¿µ, ÇÁ·Î±×·¥ °ü¸®¸¦ ÅëÇØ 100°³±¹ ÀÌ»óÀÇ »ç¶÷µéÀÇ »îÀ» Çâ»ó½ÃÅ°´Â µ¥ µµ¿òÀ» ÁÖ¾ú´Ù. 2018³â ¿ì¸®ÀÇ ¼öÀÔÀº 35¾ï ´Þ·¯¿´´Ù.


[¿ø¹®º¸±â]


New Recycled Water Plant Offers Californians Sustainable, Resilient Water Supply

 

 

Paso Robles, California, recently celebrated the completion of the new Tertiary Treatment Facilities at its wastewater treatment plant (WWTP), augmenting the roughly 30,000-resident city¡¯s water stewardship in a state dealing with water scarcity.


Black & Veatch served as designer and engineer of record for both the secondary treatment project and the tertiary treatment project heralded as one of the largest, most complex infrastructure projects in the history of the 130-year-old city known for its hot springs.


The Paso Robles WWTP project comes amidst California¡¯s growing focus on sustainable, resilient and reliable water solutions.


Like many other cities in California, water is at a premium, and Paso Robles has a master plan that involves producing quality recycled water to irrigate public areas such as city parks and golf courses.


By reducing the need to pump groundwater from the Paso Robles Groundwater Basin, the WWTP project helps build sustainability while strengthening the city¡¯s water supply.


The project builds upon Black & Veatch¡¯s history of providing water and wastewater services to Paso Robles. In 2008, the company was selected to upgrade the original WWTP, which had a peak capacity of 4.9 million gallons per day (mgd).


These improvements were driven by the need to update aging equipment and comply with new discharge permits. That project was completed in 2015.


When the time came to move onto the master plan¡¯s next phase, the city again turned to Black & Veatch ? this time to perform the preliminary and detailed design and construction on the Tertiary Treatment Facilities. This new assignment produces Title 22-compliant recycled water for beneficial reuse.


The Tertiary Treatment Facilities project involved multiple components, including an Aqua-Aerobic cloth disc filtration process and in-channel Trojan ultraviolet (UV) light disinfection.


UV disinfection was selected in lieu of the more cost-effective chemical disinfection to remove potential for formation of disinfection byproducts to the recycled water distribution system.


The existing secondary clarifiers were repurposed and converted to an equalization basin upstream of the new filtration process. The project also entailed converting one of the onsite ponds to store the recycled water.


The facilities also feature an advanced nutrient harvesting system that removes ammonia, nitrate and phosphorus from the filtrate that comes from the digested sludge dewatering system.


The filtrate, without being treated, was causing buildup of struvite in the pipes and inhibiting treatment processes. The nutrient harvesting system is used to remove the nuisance struvite and to create commercial-grade fertilizer.


In addition to plant maintenance purposes, the city is marketing the fertilizer to offset the cost of building the facility. This nutrient harvesting system is the first of its kind in the State of California.


¡°Black & Veatch has a long track record of solving challenging water needs by delivering innovative wastewater recycling and reuse solutions, particularly in areas of water scarcity,¡± said Ashutosh Shirolkar, Black & Veatch project manager.


¡°Recycling and reuse strategies continue to evolve. What was once viewed as a creative solution to dispose of wastewater effluent has now become an important tool to help ensure a reliable and resilient water supply.¡±


¡°Our team has an unprecedented ability to tackle these large-scale wastewater treatment projects - navigating complicated regulatory environments, aligning disparate stakeholders, and addressing funding - to complete projects that deliver as promised.¡±


About Black & Veatch
Black & Veatch is an employee-owned, global leader in building critical human infrastructure in Energy, Water, Telecommunications and Government Services.


Since 1915, we have helped our clients improve the lives of people in over 100 countries through consulting, engineering, construction, operations and program management. Our revenues in 2018 were US$3.5 billion.

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