Effects of Sonication on Conductivity and pH Value of Water
Conductivity and pH value of water can be efficiently influenced by treating water with high-intensity, low-frequency ultrasound. Sonication of water results in increased conductivity and pH values in water.
Influence of Power Ultrasound on Electric Conductivity
Tests were performed using the ultrasonic probe-type device UP400St in order to investigate the influence of ultrasonication on the conductivity of distilled water. Two (passive, non-sonicating) electrodes were inserted into the wide sonication vessel, the ultrasonic probe was mounted between the electrodes. As the chart below shows, the conductivity increases, as well as the pH value.
How to Take Advantage of Ultrasonic Changes in Electric Conductivity
The increase of electric conductivity has several advantages when it comes to elecrolysis and electrochemical applications. Reducing the resistance in electrolysis applications allows to cut back on the addition of salts, acids or bases, which are commonly used to modify the conductivity and resistance of liquids such as water in electrolyzers.
Probe-Type Ultrasonicators for High-Performance Application
Hielscher Ultrasonics offers a wide portfolio of high-performance probe-type ultrasonicators for liquid applications, e.g. influencing electric conductivity and pH value of fluids. Fulfilling easily common industrial standards, Hielscher ultrasonic equipment can be operated 24/7 under full load and demanding conditions.
The table below gives you an indication of the approximate processing capacity of our ultrasonicators:
|Batch Volume||Flow Rate||Recommended Devices|
|1 to 500mL||10 to 200mL/min||UP100H|
|10 to 2000mL||20 to 400mL/min||UP200Ht, UP400St|
|0.1 to 20L||0.2 to 4L/min||UIP2000hdT|
|10 to 100L||2 to 10L/min||UIP4000hdT|
|n.a.||10 to 100L/min||UIP16000|
|n.a.||larger||cluster of UIP16000|
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Literature / References
- R. Giriûnienë, E. Garðka (1997): The influence of ultrasound on electrical conductivity of water. ULTRAGARSAS. Nr.2(28). 1997.
- Suslick, S.; Didenko, Yuri; Fang, Ming; Hyeon, Taeghwan; Kolbeck, Kenneth; Iii, William; Mdleleni, Millan; Wong, Mike (2000): Acoustic Cavitation and Its Chemical Consequences. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2000.