بررسی تاثیر میدان مغناطیسی بر رسوبگذاری آب شهری بیرجند

نوع مقاله: یادداشت فنی (5 صفحه)

نویسندگان

1 استادیار /گروه مهندسی عمران، دانشکده فنی و مهندسی، دانشگاه خوارزمی، تهران.

2 دانش‌آموخته کارشناسی ارشد/ مهندسی عمران- محیط زیست، دانشگاه خوارزمی، تهران.

چکیده

فناوری مغناطیسی نمودن آب و اثر آن بر خصوصیات شیمیایی و فیزیکی آب یکی از موضوعات بحث برانگیز در دو دهه اخیر بوده است. تحقیق حاضر به بررسی اثر مغناطیس بر رسوبگذاری آب شهری بیرجند با استفاده از اندیس رایزنر و انجام دو آزمایش متفاوت می پردازد. در آزمایش اول، به منظور بررسی تغییرات ساعتی جامد باقی مانده در بوته‌های چینی، پایلوتی طراحی گردید که آب از یک مخزن با عبور از میان آهنربا به درون مخزن دوم ریخته شود. سپس آزمایش TDS در 4 حالت بدون عبور، یک، سه و پنج بار عبور از مغناطیس، بر روی آب انجام گرفت. در آزمایش دوم، رسوب ایجاد شده در دستگاه بخور توسط آب شهری در حالت با و بدون آهنربا انجام گرفت. نتایج نشان داد مغناطیس بر روی شیمی آب (در ارتباط با رسوب) تاثیر قابل ملاحظه ای ندارد و باعث تغییر اندکی در شاخص رایزنر گردید. در بوته های چینی پس از بخار شدن آب، مقدار رسوب کاهش معناداری نیافت و TDS در عبورهای مختلف از مغناطیس در حدود mg/L 850 بود و مطابق تحلیل آماری به روش توکی، تمامی میانگین ها در یک رده قرار گرفتند. اما بر روی الکترودهای دستگاه بخور رسوب کمتر (کاهش 43 درصدی) و نرم تری تشکیل شد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

The effect of magnetic field on scale deposition of Birjand tap water

نویسندگان [English]

  • N Heidarzadeh 1
  • H Mohamadpour 2
1 Assistant Professor, Department of Civil Engineering, School of Engineering, Kharazmi University, Tehran
2 Master of Science student, Civil Engineering – Environmental Engineering, Kharazmi University, Tehran
چکیده [English]

Water magnetization technology and its effect on the chemical and physical properties of water has been one of the controversial topics in two past decades. In this research, the effects of magnetic field on scaling of Birjand tap water studied using Ryznar index and two different pilot scale tests. In the first experiment, to evaluate the hourly changes of remained solids in the porcelain dishes, a pilot is designed so that water of the first tank passed through a magnetic field and then collected in the second tank. After that, TDS of the water was analyzed at 4 modes of without passing, one, three and five times passing through magnet with two replications. In the second experiment, scale deposition of tap water on a humidifier device was investigated. Results showed that the magnetic field didn’t have significant impact on the water chemistry (related to scale deposition) and it made a little change in the Ryznar index. Also, TDS of different samples passed through the magnets was about 850 mg/L and all averages were in the same category of Tukey statistical analysis method. However, sediments formed on the electrodes of the humidifier were less (43% reduction) and softer.

کلیدواژه‌ها [English]

  • Water magnetization
  • water chemical properties
  • Ryznar index
  • scale deposition

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