Comparison Table

Type Advantages Disadvantages
Shaker Collectors Have high collection efficiency for respirable dust Have low air-to-cloth ratio (27 to 40 m/h)
Can use strong woven bags, which can withstand intensified cleaning cycle to reduce residual dust build up Cannot be used in high temperatures
Simple to operate Require large amounts of space
Have low pressure drop for equivalent collection efficiencies Often need large numbers of filter bags
  Consist of many moving parts and require frequent maintenance
Personnel must enter bag house to replace bags, creating potential for exposure to toxic dust
Can result in reduced cleaning efficiency if even a slight positive pressure exists inside bags
Reversed Pulse Bag Houses Have high collection efficiency for respirable dust, down to 1 micron or smaller Require use of dry compressed air
Can have high air-to-cloth ratio (filtration velocity) up to 180 m/h or more  
Have increased efficiency and minimal residual dust build up due to aggressive cleaning action
Can clean continuously
Have lower bag wear
Have small size and fewer bags because of high air-to-cloth ratio (filtration velocities)
Some designs allow bag changing without entering bag house
Have low pressure drop for equivalent collection efficiencies
Wet Scrubber Low capital cost Potential high energy (power) required
Captures fine particulates above 0.5 μm Potential issues with turning an air pollution problem into a water pollution problem

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