전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제66권3호
  • /
  • Pages.545-550
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  • 2017
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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고전압 임펄스를 활용한 발전용수 칼슘농도 저감에 관한 연구

A Study on Calcium Ion Reduction in Power Plant Water using High Voltage Impulse

  • 투고 : 2017.01.17
  • 심사 : 2017.02.07
  • 발행 : 2017.03.01
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초록

As an alternate technique for water softening, high voltage impulse (HVI) is introduced and verified if it can control the $CaCO_3$ scale formation in industrial water treatment. After HVI was applied to the artificial hard water containing $100{\pm}5mg/L$ $Ca^{2+}$ for 4 hours, the $Ca^{2+}$ concentration and the electrical conductivity were measured. The concentration of $Ca^{2+}$ was reduced from 94.5 to 86.3 mg/L (8.7% reduction) after 4 hour contact of HVI under 5 kV condition. The $Ca^{2+}$ was decreased from 92 to 77.7 mg/L (15.6% reduction) at 8kV and from 90.1 to 75.4 mg/L (16.3% reduction) at 12 kV condition. Both of the contact time and the applied voltage were important parameters affecting the calcium ion reduction. With these results, it was verified that HVI technique could be potential candidate for control of $CaCO_3$ scale formation.

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참고문헌

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