음용수 혼합 시스템 솔루션 제공업체인 Pulsair Systems가 국가 위생 재단(National Sanitation Foundation)과 NSF International로부터 자사의 혼합 시스템이 NSF/ANSI 기준 61(Standard 61)에 부합, 인증을 획득하였다고 발표했다. 이를 통해 앞으로 모든 규모의 음용수 저장 탱크나 급수장에서 자사의 제품이 설치가 가능하다고 밝혔다.

Pulsair의 에너지 효율형 음용수 혼합 프로세스는 수역 관리자들로 하여금 몇 분 안에 수조 탱크를 완벽하게 혼합시킬 수 있게 한다. 이로써 음용수 혼합과정을 거치면 수질이 개선되고 열 성층화가 감소하고 트리할로메탄 수치가 감소하고 할로 아세틱산, 질산이 감소하게 되고 이를 통해 일관적인 수온을 유지하고 빙각 생성을 줄일 수 있게 된다.

BELLEVUE, WA,  July 22, 2013 -- Pulsair Systems, a supplier of potable water mixing systems, announced that the company's mixing systems was tested and certified by the National Sanitation Foundation (NSF) and NSF International to NSF/ANSI Standard 61 and are now approved for installation in all sizes of potable water storage tanks and water reservoirs. 

Pulsair's energy-efficient potable water mixing process helps water district operators completely mix water storage tanks in a matter of minutes to improve water quality, reduce thermal stratification, protect against total trihalomethanes (TTHMs) and haloacetic acids (HAA5s), and nitrification buildup to achieve uniform water temperature and reduce ice formation.

The Pulsair potable water mixing process works by intermittently releasing bursts of clean, filtered compressed air through a series of strategically placed stainless steel accumulator plates at the bottom of potable water storage tanks or reservoirs. The rising air bubbles create an immediate vertical circulation pattern in the tank allowing 100 percent of the water in the tank to be uniformly mixed in a matter of minutes. This fast and energy-efficient mixing process pushes and pulls water up into the tank and breaks up stagnant water layers to prevent the formation of thermoclines and helps reduce nitrification.

As more water utilities include active mixing in their potable water storage facilities to improve water quality, they are also concerned about quickly responding to unforeseen water quality issues that may arise. For example, water districts can no longer afford to wait up to a week for a million-gallon water tank to be completely turned over if an emergency disinfectant dosing and boosting is required. With the Pulsair mixing process, water utilities can completely turn over large water tanks, regardless of their size or shape, in a matter of minutes. Additionally, Pulsair can help water utilities keep capital, operational and maintenance expenses low by offering a lower cost active mixing system that requires low operational energy consumption and zero maintenance inside the water tank or reservoir.

[출처: Waterworld / 2013년 7월 22일]