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À̸§ °ü¸®ÀÚ waterindustry@hanmail.net ÀÛ¼ºÀÏ 2022.10.13 Á¶È¸¼ö 594
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Ķ¸®Æ÷´Ï¾Æ ÇìÀÌ¿öµå½Ã(City of Hayward)´Â Áõ°¡ÇÏ´Â Àα¸¿¡ ¼­ºñ½º¸¦ Á¦°øÇÏ°í ³ëÈÄÈ­µÈ ÀÎÇÁ¶ó¸¦ º¹±¸ÇÏ¸ç »÷ÇÁ¶õ½Ã½ºÄÚ¸¸(San Francisco Bay)À¸·Î ¹æÃâµÇ´Â Çϼö 󸮼öÀÇ Ç°ÁúÀ» °³¼±Çϱâ À§ÇØ ¼öÁú¿À¿° ÅëÁ¦½Ã¼³(WPCF ; Water Pollution Control Facility)À» Å©°Ô °³¼±ÇÏ°í ÀÖ´Ù.


¡®¸¸ÀÇ ½ÉÀå(Heart of the Bay)¡¯À¸·Î ¾Ë·ÁÁø ÇìÀÌ¿öµå½Ã´Â 16¸¸3õ ¸í ÀÌ»óÀÇ °ÅÁÖÀÚ°¡ ÀÖ´Â º£ÀÌ Áö¿ª¿¡¼­ 6¹ø°·Î Å« µµ½ÃÀÌ´Ù. 1952³â¿¡ óÀ½ °Ç¼³µÈ WPCF´Â À̽ºÆ® º£ÀÌ ¹èÃâ±¹(East Bay Dischargers Authority)¿¡ ÀÇÇØ ¿î¿µµÇ´Â ½Ã¼³·Î ÆßÇεDZâ Àü¿¡ ÇÏ·ç Æò±Õ 1õ130¸¸ °¶·±(5õ§©)ÀÇ Çϼö¸¦ ó¸®Çϸç, ±×°÷¿¡¼­ ¿°¼Ò¸¦ Á¦°ÅÇÏ°í ½ÉÇØ Ãⱸ¸¦ ÅëÇØ ¸¸À¸·Î ¹èÃâµÈ´Ù.


º£ÀÌ Áö¿ª Á¤ºÎÇùȸ(Association of Bay Area Governments)¿¡ µû¸£¸é ÇìÀÌ¿öµå½ÃÀÇ Àα¸°¡ 2015³âºÎÅÍ 2050³â±îÁö ¾à 33% Áõ°¡ÇÒ °ÍÀ¸·Î ¿¹ÃøµÊ¿¡ µû¶ó ¿¹»óµÇ´Â ¿µ¾ç¼Ò ¹èÃâ ±ÔÁ¤À» ÃæÁ·ÇÏ°í Áõ°¡ÇÏ´Â Çϼö È帧°ú ºÎÇϸ¦ ¼ö¿ëÇϱâ À§ÇØ WPCFWPCF(¼öÁú¿À¿° ÅëÁ¦½Ã¼³)¿¡¼­ ¼öÁ¤ ÀÛ¾÷ÀÌ °èȹµÇ°í ÀÖ´Ù. ±Ã±ØÀûÀ¸·Î, ±× ¾÷±×·¹À̵å´Â ½ÃÀÇ Áß¿äÇÑ »ýÅ°踦 º¸È£ÇÒ ¿µ¾ç¼Ò °¨¼Ò ¼Ö·ç¼ÇÀÇ Á¶±â äÅÃÀÚ·Î ÀÚ¸®¸Å±èÇÒ °ÍÀÌ´Ù.


ÀÌ ÇÁ·ÎÁ§Æ®´Â ¾Ë·º½º ¾Æ¸Þ¸®(Alex Ameri) °ø°ø»ç¾÷ ¹× À¯Æ¿¸®Æ¼ ±¹ÀåÀÌ ¼³¸íÇÑ ´ë·Î ³ëÈÄÈ­µÈ ÀÎÇÁ¶ó¸¦ °³¼±Çϱâ À§ÇÑ ½ÃÀÇ °èȹÀÇ ÇÙ½É ºÎºÐÀÌ´Ù.


¾Ë·º½º ¾Æ¸Þ¸® ±¹ÀåÀº ƯÈ÷ ¡°´ÙÀ̳ª¹Í º£ÀÌÁö¿ªÀÇ Áß½ÉÀ¸·Î¼­ ÇìÀÌ¿öµå½Ã´Â Áõ°¡ÇÏ´Â Àα¸¿Í °³¹æµÈ °ø°£ÀÇ º¸Á¸ ¹× °ø°ÝÀûÀÎ °æÁ¦ °³¹ß Àü·«ÀÇ ±ÕÇüÀ» ¸ÂÃß±â À§ÇØ ¿­½ÉÈ÷ ³ë·ÂÇϸ鼭 ¹Ì·¡¿¡ ´ëÇÑ °èȹÀ» °è¼Ó ¼ö¸³ÇÏ°í ÀÖ´Ù¡±¸ç ¡°ÀÌ Áß¿äÇÑ ÇÁ·ÎÁ§Æ®´Â È°±âÂù Áö¿ª»çȸ¿¡ ´ëÇÑ ÈǸ¢ÇÑ ¼­ºñ½º¸¦ À¯ÁöÇϸ鼭 ¸¸À» º¸È£ÇÏ´Â µ¥ ¸Å¿ì Áß¿äÇÏ´Ù¡±°í °­Á¶Çß´Ù.


ÇìÀÌ¿öµå½Ã´Â °³¼±À» À§ÇÑ ¿¹ºñ ¹× ÃÖÁ¾ ¼³°è ¼­ºñ½º¸¦ À§ÇØ ºê¶ó¿î & ÄݵåÀ£(Brown & Caldwell) ȸ»ç¸¦ ¼±Á¤Çß´Ù. ÁÖ¿ä ÄÁ¼³ÅÏÆ®·Î¼­ ÀÌ È¸»ç´Â »÷ÇÁ¶õ½Ã½ºÄÚ º£ÀÌÁö¿ª ¼öÁú°ü¸® À§¿øȸ(San Francisco Bay Regional Water Quality Control Board)°¡ ±ÔÁ¦ÇÏ´Â ´ë·Î ó¸®ÇÑ Çϼö ¹èÃâ¿¡ ´ëÇÑ ¿µ¾ç¼Ò ÇѰ踦 ÃæÁ·Çϱâ À§ÇØ ½Ã¼³ÀÇ Ã³¸® °úÁ¤¿¡ »ý¹°ÇÐÀû ¿µ¾ç¼Ò Á¦°Å, ÁÖ·Î Áú¼Ò µîÀ» ÅëÇÕÇÏ´Â ¼Ö·ç¼ÇÀ» °³¹ßÇÒ °èȹÀÌ´Ù.


ÀÌ·¯ÇÑ ¼Ö·ç¼ÇÀº ¹Ì·¡ÀÇ ¿ä±¸¿Í ¹ßÀüÇÏ´Â ±ÔÁ¤¿¡ µû¶ó »õ·Î¿î ó¸® ÅÊÅ©¸¦ °Ç¼³ÇÏÁö ¾Ê±â À§ÇØ ±âÁ¸ÀÇ Ã³¸® ¹æ¹ýÀ» »ç¿ëÇÏ´Â È®Àå ¶Ç´Â »õ·Î¿î ±â¼úÀ» »ç¿ëÇÏ´Â °øÁ¤ °­È­¸¦ ¼ö¿ëÇÒ ¼ö ÀÖ´Â À¯¿¬¼ºÀ» Á¦°øÇÑ´Ù.


Çؼö¸é »ó½ÂÀ¸·Î ÀÎÇÑ ÀáÀçÀû È«¼ö¿Í ÁöÇϼö »ó½ÂÀ» Æ÷ÇÔÇÑ ±âÈÄ º¯È­ ¿µÇâÀ» ÁÖ½ÃÇϸ鼭 ¾÷±×·¹À̵åµÈ ½Ã¼³Àº º¹¿ø·ÂÀ» Çâ»ó½ÃÅ°µµ·Ï ¼³°èµÈ´Ù.


°³¼± °ø»ç Áß ¿î¿µ Â÷ÁúÀ» ÃÖ¼ÒÈ­Çϱâ À§ÇÑ °Ç¼³ È°µ¿ÀÇ ¼ø¼­´Â »ç¾÷ÀÇ ¼º°ø¿¡ ¸Å¿ì Áß¿äÇÏ´Ù. ºê¶ó¿î & ÄݵåÀ£Àº WPCF(¼öÁú¿À¿° ÅëÁ¦½Ã¼³) Á÷¿ø°ú ±ä¹ÐÈ÷ Çù·ÂÇÏ¿© ¸¸À¸·Î ¹èÃâµÇ´Â ¿À¼öÀÇ Ç°ÁúÀ» À¯ÁöÇϸ鼭 Ç÷£Æ® ¿î¿µÀÇ Â÷ÁúÀ» ÃÖ¼ÒÈ­Çϱâ À§ÇÑ °­·ÂÇÑ °Ç¼³ ¼ø¼­ °èȹÀ» °³¹ßÇÒ ¿¹Á¤ÀÌ´Ù.


ºê¶ó¿î & ÄݵåÀ£Àº ¶Ç ¿µ¾ç¼Ò ¾÷±×·¹À̵尡 ó¸®Àå ³» ±âÁ¸ °íÇü¹° 󸮴ɷ¿¡ ¹ÌÄ¡´Â ¿µÇâ°ú 󸮰úÁ¤¿¡¼­ »ý»êµÇ´Â À¯¿ëÇÑ À¯±â¹°ÁúÀÇ Áö¼Ó°¡´ÉÇÑ °ü¸®¸¦ °í·ÁÇÑ Á¾ÇÕÀûÀÎ ¹ÙÀÌ¿À°íÇü¹°(biosolids)°ú Àç»ý¿¡³ÊÁö ¸¶½ºÅÍÇ÷£À» ¸¶·ÃÇÒ ¿¹Á¤ÀÌ´Ù.


ÀÌ °èȹ¿¡´Â ½ÃÀÇ Áö¼Ó°¡´É¼º ¸ñÇ¥¿¡ ¸ÂÃç ÀÚ¿ø ȸ¼ö ¹× À¯ÀÍÇÑ Àç»ç¿ë ±Ç°í»çÇ×ÀÌ Æ÷ÇԵȴÙ. °Ô´Ù°¡, ÀÌ °èȹÀº ÇìÀÌ¿öµå½Ã°¡ ¿Â½Ç°¡½º ¹èÃâÀ» ÁÙÀ̱â À§ÇÑ ÁÖ °èȹÀÇ ÀÏȯÀ¸·Î 2025³â±îÁö °íÇü Æó±â¹° ¸Å¸³Áö·Î º¸³»Áö´Â Ķ¸®Æ÷´Ï¾ÆÀÇ À¯±â¼º Æó±â¹°À» 75%±îÁö ÁÙÀ̵µ·Ï ¿ä±¸ÇÏ´Â »ó¿ø ¹ý¾È 1383À» ÁؼöÇϵµ·Ï µµ¿ï ¼ö Àִ ƲÀ» Á¦°øÇÑ´Ù.


ºê¶ó¿î & ÄݵåÀ£(Brown & Caldwell)ÀÇ Ã¥ÀÓÀÚÀÎ ÇÁ·£ ¹ú¸µ¾ö(Fran Burlingham)Àº ¡°¿ì¸®´Â µµ½Ã°¡ ¹Ì·¡ °èȹÀ» ¼¼¿ì°í ȯ°æº¸È£¿¡ Àü³äÇÑ °ÍÀ» ³ôÀÌ Æò°¡ÇÑ´Ù¡±¸é¼­ ¡°¿ì¸® ÆÀÀº ¹Ì·¡ÀÇ Ç÷£Æ®¸¦ Á¦°øÇÏ°í ÇìÀÌ¿öµå½Ã°¡ Áö¼ÓÀûÀÎ ¼º°øÀ» °ÅµÑ ¼ö ÀÖµµ·Ï ¹èÄ¡ÇÏ´Â µ¥ µµ¿òÀ» ÁÙ ¼ö ÀÖ¾î ¿µ±¤À¸·Î »ý°¢ÇÑ´Ù¡±°í ¸»Çß´Ù.


°³¼±ÀÇ ÃÖÁ¾ ¼³°è´Â 2024³â ¿©¸§À¸·Î ¿¹Á¤µÇ¾î ÀÖÀ¸¸ç, °Ç¼³Àº 2028³â º½±îÁö ¿Ï·áµÉ °ÍÀ¸·Î ¿¹»óµÈ´Ù.


[¿ø¹®º¸±â]


Hayward, California, plans wastewater treatment upgrades to protect San Francisco Bay

Improvements at the Hayward Water Pollution Control Facility to increase capacity, renew infrastructure, and limit nutrient loading to the bay


 

HAYWARD, Calif. ? The City of Hayward (City) is making significant improvements at its Water Pollution Control Facility (WPCF) to serve a growing population, rehabilitate aging infrastructure, and improve the quality of purified water released to the San Francisco Bay.


Known as the ¡°Heart of the Bay,¡± Hayward is the sixth-largest city in the Bay Area with over 163,000 residents. The WPCF, originally constructed in 1952, treats an average of 11.3 million gallons per day (MGD) of wastewater before it is pumped to a facility operated by the East Bay Dischargers Authority where it is dechlorinated and discharged into the bay via a deep-water outfall.


Modifications are planned at the WPCF to meet anticipated nutrient discharge regulations and accommodate increased wastewater flows and loads as Hayward¡¯s population is forecasted to grow by approximately 33 percent from 2015 to 2050, according to the Association of Bay Area Governments. Ultimately, the upgrades will position the City as an early adopter of nutrient reduction solutions that will protect vital ecosystems in the bay.


The project is a key part of the City¡¯s plan to improve its aging infrastructure as described by Director of Public Works and Utilities Alex Ameri:


¡°As the center of the dynamic Bay Area, Hayward continues to plan for the future, working hard to balance the needs of our growing population with the preservation of open space and an aggressive economic development strategy. This important project is critical to protecting the bay while maintaining excellent service to our vibrant communities.¡±


The City has enlisted Brown and Caldwell for preliminary and final design services for the improvements. As prime consultant, the firm will develop solutions to incorporate biological nutrient removal, primarily nitrogen, in the facility¡¯s treatment process to meet nutrient limits for treated effluent discharges to the bay as regulated by the San Francisco Bay Regional Water Quality Control Board. 


Such solutions will provide flexibility to accommodate expansion using conventional treatment methods or process intensification using new technologies to avoid building new treatment tanks, depending on future needs and evolving regulations.


With an eye on climate change impacts, including potential flooding and rising groundwater resulting from sea level rise, the upgraded facilities will be designed to improve resiliency.


The sequencing of construction activities to minimize operational disruptions during construction of the improvements is crucial to the project¡¯s success. Brown and Caldwell will work closely with WPCF staff to develop a robust construction sequencing plan to minimize disruptions to plant operations while at the same time maintaining the quality of effluent discharged to the bay.


Brown and Caldwell will also prepare a comprehensive biosolids and renewable energy master plan that considers the impact of the nutrient upgrades on the existing solids handling capacity at the plant and sustainable management of the useful organic material produced in the treatment process. 


The plan will include resource recovery and beneficial reuse recommendations in alignment with the City¡¯s sustainability goals. Furthermore, the plan will provide a framework to help Hayward comply with Senate Bill 1383, which requires reducing California¡¯s organic waste sent to solid waste landfills by 75 percent by 2025 as part of the state¡¯s plan to reduce greenhouse gas emissions.


¡°We commend the City for its forward planning and commitment to environmental stewardship,¡± said Brown and Caldwell Principal-in-Charge Fran Burlingham. ¡°Our team is honored to help deliver the plant of the future and position Hayward for continued success.¡±


Final design of the improvements is scheduled for summer 2024 with construction anticipated for completion by spring 2028.


[Ãâó= ºê¶ó¿î&ÄݵåÀ£(https://brownandcaldwell.com/2022/10/hayward-protects-san-francisco-bay/) / 2022³â 10¿ù 4ÀÏ]

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