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[¿µ±¹] WCS ȯ°æ ¿£Áö´Ï¾î¸µ, ¼Ûdz±â ÀÚµ¿ ŸÀ̸ӷΠÇϼö󸮽ü³ ³» Àü·Â ¼Òºñ·® ÁÙ¿©
À̸§ °ü¸®ÀÚ waterindustry@hanmail.net ÀÛ¼ºÀÏ 2022.08.17 Á¶È¸¼ö 480
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[¿µ±¹] WCS ȯ°æ ¿£Áö´Ï¾î¸µ, ¼Ûdz±â ÀÚµ¿ ŸÀ̸ӷΠÇϼö󸮽ü³ ³» Àü·Â ¼Òºñ·® ÁÙ¿©

¼Ûdz±â Àü·Â ¼Òºñ·® Àý¹ÝÀ¸·Î °¨¼Ò½ÃÄÑ



[»çÁøÁ¦°ø = WCSEED]

ÇÜÇÁ¼ÅÀÇ ÄÁÆ®¸® ÇϿ콺 »çÀ¯Áö¿¡ ÀÖ´Â HiPAF¿Í ÃÊ´ëÇü Å°¿À½ºÅ©. [»çÁøÁ¦°ø = WCSEED]

 

WCS ȯ°æ ¿£Áö´Ï¾î¸µ(WCS Environmental Engineering, WCSEE)Àº »õ·Ó°³ °³¹ßÇÑ ¿¡³ÊÁö Àý¾à ±â¹ýÀ¸·Î ÆÐÅ°ÁöÇü Çϼö 󸮽ü³ÀÇ Àü·Â ¼Òºñ¸¦ Àý¹ÝÀ¸·Î ÁÙÀÏ ¼ö ÀÖ´Ù°í ¹àÇû´Ù.


¹° ÀçÀÌ¿ë Àü¹®°¡´Â ƯÇã ¹ÞÀº °í¼º´É Æø±â ÇÊÅÍ(high performance aerated filter, HiPAF) ÆÐÅ°ÁöÇü 󸮽ü³ÀÇ »ý¹°ÇÐÀû ó¸® ºÎºÐ¿¡ ¼Ûdz±â¸¦ ÀÛµ¿½ÃÅ°±â À§ÇØ ÀÚµ¿È­µÈ ŸÀ̸Ӹ¦ µµÀÔÇß´Ù.


¼Ûdz±â´Â ÀϹÝÀûÀ¸·Î Çϼö 󸮽ü³¿¡¼­ »ç¿ëµÇ´Â ¿¡³ÊÁöÀÇ 95% ÀÌ»óÀ» Â÷ÁöÇÑ´Ù. ¼Ûdz±â´Â º¸Åë 24½Ã°£ ¿¬Áß¹«ÈÞ·Î ÀÛµ¿Çϸç, »ý¹°ÇÐÀû ó¸® °øÁ¤¿¡ °ø±â¸¦ ºÒ¾î³Ö°í Çϼö¿¡¼­ À¯±â¹°À» ºÐÇØÇÏ´Â ¹ÚÅ׸®¾Æ¿¡°Ô »ê¼Ò¸¦ °ø±ÞÇÏ¿© ³ôÀº ó¸® ±âÁØÀÌ À¯ÁöµÇµµ·Ï ÇÑ´Ù.


WCSEEÀÇ HiPAF ¹üÀ§¿¡ ÀÖ´Â ¼Ûdz±â´Â ÀÌÁ¦ 24½Ã°£ °è¼Ó ÀÛµ¿ÇÏ´Â ´ë½Å Á¤ÇØÁø ½Ã°£¿¡ µû¶ó °øÁ¤¿¡ °ø±â¸¦ ÁÖÀÔÇϵµ·Ï ¸ÂÃçÁø´Ù. ŸÀ̸Ӵ ó¸®½Ã¼³ÀÇ HiPAF ¹üÀ§¿¡ Ç¥ÁØÀ¸·Î ³»ÀåµÇ¾î Çϼö¸¦ ó¸®Çϴµ¥ »ç¿ëµÇ´Â ¿¡³ÊÁöÀÇ ¾çÀ» ÃÖ´ë 50%±îÁö ÁÙÀÏ °ÍÀÌ´Ù. ÀÌ´Â ±â¾÷ÀÇ ¼ø ź¼Ò ¹èÃâ Á¦·Î ¸ñÇ¥¿¡ ±â¿©ÇÒ ¼ö ÀÖÀ» »Ó¸¸ ¾Æ´Ï¶ó ¿¡³ÊÁö ºñ¿ëÀ» Àý°¨ÇÒ ¼ö ÀÖ´Ù.


¾Øµå·ù º£¾îµå(Andrew Baird) WCSEE ±â¼ú ÀÌ»ç´Â "ź¼ÒÁ߸³ Àü·«Àº ±âÈÄ ¸ñÇ¥¸¦ ´Þ¼ºÇÏ´Â µ¥ Áß¿äÇÑ ¿¡³ÊÁö È¿À²°ú ÇÔ²² ±â¾÷ÀÇ ÃÖ¿ì¼± °úÁ¦ÀÌ´Ù"¶ó¸ç, "µ¿½Ã¿¡ ±â¾÷Àº ¿¡³ÊÁö ºñ¿ëÀÌ Å©°Ô Áõ°¡ÇÏ´Â »óȲ¿¡ Á÷¸éÇØ ÀÖÀ¸¸ç, Àü·Â ¼Òºñ¸¦ ÁÙÀÌ´Â °ÍÀÌ ÀÌÁ¦ ¸¹Àº »ç¶÷µéÀÌ ºñ¿ëÀ» ÅëÁ¦Çϱâ À§ÇØ ½ÃµµÇÏ´Â ¿ì¼±ÀûÀÎ ¹æ¹ýÀÌ´Ù"¶ó°í ¸»Çß´Ù.


±×´Â À̾ "¼Ûdz±â¿¡ ŸÀ̸Ӹ¦ ±¸ÃàÇÏ´Â °ÍÀº Àü·Â ¼Òºñ¸¦ ÃÖ´ë 50%±îÁö ÁÙÀÌ´Â °£´ÜÇÏ°í Àú·ÅÇÑ ¿É¼ÇÀÓÀÌ ÀÔÁõµÇ¾î ÀÌ´Â ¼ø Á¦·Î ¹× ºñ¿ë È¿À²¼º¿¡ ´ëÇÑ ½ÃÀåÀÇ ¿ä±¸¸¦ ¸ðµÎ ÃæÁ·½ÃŲ´Ù"°í µ¡ºÙ¿´´Ù.


ŸÀÌ¸Ó °³³äÀº ±ÔÁ¤ Áؼö°¡ Ç×»ó À¯ÁöµÇµµ·Ï º¸ÀåÇϱâ À§ÇØ ÇÜÇÁ¼Å(Hampshire) ÁÖÀÇ ÇÇÅͽºÇʵå Çϼö󸮽ü³( Petersfield Wastewater Treatment Works)¿¡ ÀÖ´Â ½Ã¼³¿¡¼­ Æ÷Ã÷¸Ó½º ´ëÇб³ ¿¬±¸¿ø¿¡ ÀÇÇØ 3³â¿¡ °ÉÃÄ Å×½ºÆ®µÆ´Ù.


º£¾îµå´Â ¡°°³³äÀº °£´ÜÇÏÁö¸¸ ¼Ûdz±â¸¦ ÄÑ°í ²ø ÀûÀýÇÑ ½Ã°£°ú ±â°£À» ã´Â °ÍÀº ¾î·Á¿î ÀÏÀ̾ú´Ù"¸é¼­  "ÀϹÝÀûÀ¸·Î ¿ì¸®´Â HiPAF°¡ 20~30ºÐ ÈÄ¿¡¸¸ ¿ëÁ¸ »ê¼Ò°¡ °¨¼ÒÇÏ´Â °ÍÀ» ¹ß°ßÇÏ¿© ŸÀ̸Ӹ¦ 15ºÐ ÄÑ±â ¹× 15ºÐ ²ô±â·Î ¼³Á¤ÇÒ ¼ö ÀÖÀ½À» ¹ß°ßÇß´Ù"°í ÀüÇß´Ù.


±×´Â À̾ ¡°ÀÌ·¯ÇÑ °£ÇæÀû °ø±â ÁÖÀÔÀº ¿¡³ÊÁö¸¦ ÈξÀ Àû°Ô ¼ÒºñÇϸ鼭 ¾ÈÁ¤ÀûÀΠ󸮸¦ À§ÇÑ È¿°úÀûÀÎ Åë±â¸¦ Á¦°øÇÑ´Ù. 15ºÐ °£°ÝÀº ¼Ûdz±â º¸Áõ À¯Áö¸¦ À§ÇØ ¼Ûdz±â Á¦Á¶¾÷ü°¡ ¿ä±¸ÇÏ´Â ½Ã°£´ç Äѱ⠲ô±â Áֱ⸦ ÃÊ°úÇÏÁö ¾Ê´Â Ãß°¡ ÀÌÁ¡À» Á¦°øÇÑ´Ù¡±°í µ¡ºÙ¿´´Ù.


½ÇÁú¿¬±¸

 

ŸÀ̸ÓÀÇ Ãß°¡´Â WCSEEÀÇ HiPAF ±â¼úÀÇ ÇÁ·Î¼¼½º È¿À²¼ºÀ» Çâ»ó½ÃÅ°±â À§ÇÑ ½ÇÁúÀûÀÎ ¿¬±¸ °³¹ßÀÇ ÀϺηΠÀÌ·ç¾îÁ³´Ù.


ÀÌ·¯ÇÑ ¿¬±¸´Â ÀÌ¹Ì ¹ÙÀÌ¿ÀÁ¸À¸·Î ¾Ë·ÁÁø »ý¹°ÇÐÀû ó¸® ºÎºÐ¿¡ ƯÇã¹ÞÀº Hybrid-SAF(¼öÁß Æø±â ÇÊÅÍ, submerged airated filters) ±â¼úÀ» µµÀÔÇÏ¿© »ó´çÇÑ ¿¡³ÊÁö ¹× ºñ¿ë Àý°¨À» ´Þ¼ºÇß´Ù. ÀÌ Æ¯Çã ±â¼úÀº ±âÁ¸ÀÇ ¼öÁß SAF¿¡ ºñÇØ ´õ ³ôÀº ¿¡³ÊÁö È¿À²·Î Çϼö¸¦ ´õ Á¼Àº ºÎÁö ¸éÀû¿¡¼­ ó¸®ÇÏ´Â µ¿½Ã¿¡ ȯ°æ Áؼö¸¦ ÃæÁ·½Ãų ¼ö Àִ  ¼öÁß À̵¿Çü ÀåÄ¡(submerged moving-bed), °íÁ¤¸· ¹ÝÀÀ±â(fixed-film reactor)¸¦ »ç¿ëÇÑ´Ù.


º£¾îµå´Â ¡°SAF 󸮴 ¸¹Àº ¾çÀÇ °ø±â¸¦ °ø±ÞÇÏ´Â µ¥ ÇÊ¿äÇÑ ¿¡³ÊÁö·Î ÀÎÇØ ÀüÅëÀûÀ¸·Î °íºñ¿ë °øÁ¤À¸·Î °£ÁֵǸç, ÀϹÝÀûÀ¸·Î ´õ Å« °èȹ¿¡¼­´Â °í·ÁµÇÁö ¾Ê´Â´Ù"¶ó¸ç, ¡°ÇÏÀ̺긮µå SAF ±â¼úÀÇ ÇÙ½ÉÀº ƯÇ㸦 ¹ÞÀº °íÀ¯ÇÑ È帧 Ư¼ºÀ̸ç, ÀÌ°ÍÀº ¼öÁß À̵¿Çü ÀåÄ¡¸¦ ÅëÇØ ¿µ¾çºÐÀÇ ±ÕÀÏÇÏ°í Áö¼ÓÀûÀ¸·Î È帣µµ·Ï ÇÑ´Ù"°í ¼³¸íÇß´Ù.


±×´Â À̾ "õõÈ÷ ¼øȯÇÏ´Â ¸ÅÁúÀº ¹ÙÀÌ¿À¸Å½º ¼ºÀåÀ» ¼ö¿ëÇϸ鼭 Áõ°¡ÇÏ´Â ºñÁßÀ¸·Î ÀÎÇØ Á¡Â÷ ÇÏ°­ÇÑ´Ù. Áß·ÂÀÌ °øÁ¤¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» °è»êÇϸé Àü·Â ¼Òºñ·®ÀÌ Å©°Ô °¨¼ÒÇÏ°í, Àü¹ÝÀûÀÎ È¿À²¼ºÀÌ Çâ»óµÇ¸ç, ÇöÀå ¼³Ä¡ °ø°£À» ÁÙÀÌ°í º¸´Ù ÄÞÆÑÆ®ÇÑ ÀåÄ¡¸¦ ¹èÄ¡ÇÒ ¼ö ÀÖ´Ù"°í ¼³¸íÇß´Ù.


¶ÇÇÑ À¯¾Ð Á¦¾î ¹× ü·ù ½Ã°£ÀÇ ¹ßÀüÀ¸·Î ƯÇã ¹ÞÀº °øÁ¤ ±â¼úÀº 95% ¸¶ÀÏ ±âÁØÀ¸·Î 1mg/l ¹Ì¸¸ÀÇ ÃÖÁ¾ À¯Ã⠾ϸð´Ï¾Æ ³óµµ¸¦ ÀÏ°üµÇ°Ô ´Þ¼ºÇÒ ¼ö ÀÖ¾ú´Ù.


[¿ø¹®º¸±â]


AUTOMATED TIMERS HALVE BLOWER POWER CONSUMPTION



New energy saving measures developed by WCS Environmental Engineering (WCSEE) could reduce power consumption of its package wastewater treatment plants by as much as half. 


The water recycling specialist has introduced automated timers to operate blowers in the biological treatment section of its patented HiPAF (high performance aerated filter) package treatment plants.  


Blowers account for more than 95% of the energy used in a typical wastewater treatment plant. They usually operate 24/7 to blow air into biological treatment processes, providing oxygen to the bacteria that decompose organic substances in the wastewater, ensuring high standards of treatment are maintained.   


Blowers in WCSEE¡¯s HiPAF range are now timed to pulse air into the process, rather than operate continuously. The timers will be built in as standard to the HiPAF range of treatment plants, cutting the amount of energy used to treat effluent by up to 50%. This can contribute to companies¡¯ net zero carbon emission goals, as well as bringing welcome reductions in energy costs.   


WCSEE technical director Andrew Baird said: ¡°Net zero carbon strategies are front of mind for businesses, with energy efficiencies critical to meeting climate goals. At the same time, businesses are facing huge rises in energy bills and cutting power consumption is now a priority for many to try and control costs.  


¡°Building in timers to blowers has proven to be a simple and low-cost option to reduce power consumption by up to 50%, addressing the market need for both net zero and cost efficiencies.¡± 


The timer concept was tested over three years by University of Portsmouth researchers at its facility at Petersfield Wastewater Treatment Works, Hampshire, to ensure compliance was always maintained. 


Baird said: ¡°While the concept was simple, finding the right times to turn blowers on and off and for what periods proved more of a challenge.  In general, we found the HiPAF only saw a reduction in dissolved oxygen after 20-30 minutes, allowing us to set timers to 15 minutes on and 15 minutes off.  


¡°These intermittent pulses provide effective aeration for reliable treatment, while consuming significantly less energy. The 15 minutes intervals give the added advantage of not exceeding the on off cycles per hour required by the blower manufacturers, to maintain the blower guarantee.¡± 


Substantive research  


The addition of timers has come as a result of part of WCSEE¡¯s substantive research and development to enhance process efficiency of its HiPAF technology.  


These studies have already achieved significant energy and cost savings with the introduction of the patented Hybrid-SAF (submerged aerated filters) technology to the biological treatment section, known as the biozone. The patented technology employs a submerged moving-bed, fixed-film reactor which can treat wastewater with greater energy efficiency compared to traditional submerged SAFs, in a tighter site footprint whilst meeting environmental compliance. 


Baird said: ¡°SAF treatment is traditionally viewed as a high cost process due to the energy requirement in delivering high volumes of air and is generally not considered for larger schemes. 


¡°At the heart of our Hybrid SAF technology are unique flow characteristics that have been patented. These ensure an even and continuous flow of nutrients up through the submerged, moving bed. 


¡°The slowly circulating media gradually descends due to its increasing specific gravity from hosting biomass growth. Calculating the impact of gravity on the process results in a significant reduction in power consumption, improving overall efficiency and enabling a reduction in site footprint and a deployment of a more compact unit.¡± 


Developments in hydraulic control and retention times have also enabled the patented process technology to consistently achieve final effluent ammonia concentrations of less than 1 mg/l on a 95%ile basis. 


[Ãâó = WCSEED(https://www.wplinternational.com/news/automated-timers-halve-blower-power-consumption/) / 2022³â 8¿ù 8ÀÏ]

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