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Designing a Pilot for Alphamethrin and Cypermethrin Degradation in Sewage Cake Using Ultrasonic Technology Compared to Electrodialysis
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Hossein Kiashemshaki *    |
| M.Sc., Department of Environmental Health Engineering, Faculty of Health, Mashhad University of Medical Sciences, Mashhad, Iran |
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Abstract: (2428 Views) |
Background and Purpose: The alphamethrin and cypermethrin insecticides are a common source of
Pyrotyroid poisons, which means that it is useful for insects and targeted insects. The use of ultrasonic
process for decontamination of contaminants in water and sewage is one of the advanced oxidation
processes. The present study aims to determine the efficiency of elimination of alphamethrin and
cypermethrin toxins by ultrasonic technology and electrodialysis with each other, simultaneous use of
technologies, comparison and best practice for remove these toxins in a sewage sludge cake.
Materials and methods: In this study, an ultrasonic bath of 25 kHz with temperature and time
variables along with electrodialysis process was used. Specifications of the ultrasonic device: length
151 and width 137 mm and depth 143 mm. The device is a device of the Russian Federation and
model of the device Y3B-3/200-TH-PɜπPTEK. It has the ability to adjust the temperature and time.
The test time is 20 minutes and the temperature is 25 degrees Celsius and at voltages of 10 and 28 (30)
volts and in currents of 0.02 and 0.1 amps.
Results: The removal efficiency for the alphamethrin poison in the conditions of 10 volts and the
current of 0.20 amperes and in the presence of ultrasonics is about 58% and for the cypermethrin acid
in the same conditions about 42%. And in the case of a voltage of 28.1 and a current of 0.1 amperes,
they have an efficiency of 47% and 40% respectively.
Conclusion: The ultrasonic and electrodialysis processes have the advantage of eliminating the
effective removal of toxins that are used to remove insecticides in urban sewage networks. And has
about two to three times more power removal than electrodialysis alone. |
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| Keywords: Ultrasonic, Electrodialysis, Toxins |
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Full-Text [PDF 595 kb]
(1221 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2018/12/29 | Accepted: 2018/12/29 | Published: 2018/12/29
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