The Comparison of Electrical Charging Effect on Efficiency of Spray Tower Scrubber in Removal of Silica Particles

Subject Areas : environmental management

Majid Bayatian ¹ , Abdolrahman Bahrami ² , Rostam Golmohammadi ³ , Farshid Ghorbani Shahna ⁴

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Received: 2008-10-06 Accepted : 2008-12-15 Published : 2011-12-22

Keywords: Efficiency, Charging Electrical, Eliminated silica Particle, Spray Tower,

Abstract :

One of the particle control methods is electrostatic charging with scrubbing to produce the charged wet scrubber (CWS). This technology has been used since. This system is practical where the scrubber can be used to remove the pollutants. In fact this system can increase the collecting efficiency and it is not a new technology to control the air pollution. Silica has a very high application in industry. The workers are exposed to these particles and these particles are so dangerous for man kind.        Therefore according to ACGIH offer the local ventilation system on pilot has been designed and installed at the first step. Then with a -Volt direct current (DC) power, While the water was charging,  electron were produced in the system.        With measuring pressure loss by pitot tube and on isokenetic condition, prop diameter became millimeters. Sampling was based on tree method and  samples were taken.        The result of examination indicated that: In a specified water flow, charging droplet increased inhalation particles collecting efficiency, but this charging droplet isn effective to non inhalation particles collecting efficiency. Positive charging droplet is the most effective than negative charging droplet. Increasing water flow leads to increasing efficiency in collecting particles.