written 5.6 years ago by | • modified 2.7 years ago |
Subject :- Environmental Engineering II
Topic :- Municipal Solid Waste Management
Difficulty :- Medium
written 5.6 years ago by | • modified 2.7 years ago |
Subject :- Environmental Engineering II
Topic :- Municipal Solid Waste Management
Difficulty :- Medium
written 5.6 years ago by |
Gravitational settling chamber:
Advantages: Low initial cost, easy to design, low pressure drop, low maintenance cost.
Disadvantages: Require large space, less collection efficiency etc.
Cyclone separator :
• Centrifugal force is utilized to separate the particulate matter.
• It can remove 10 to 50 µm particle size.
• Used mostly in industries.
Advantages : Low initial cost, less floor area require, can handle large volume of gas at high temp, simple construction and maintenance.
Disadvantages: Require large head room, less efficiency for small particles (<10 µm). Sensitive to variable dust load & flow rate.
Electrostatic precipitator :
Advantages: - High collection efficiency, particles may be collected dry or wet - Can be operated at high temp (300-450 C).
Disadvantages: - High initial cost, require high voltage, collection efficiency reduce with time. - Space requirement is more.
Fabric filter:
Advantages: - High collection efficiency for smaller than 10 µm particle size. - Performance decrease becomes visible giving pre-warning. - Normal power consumption.
Disadvantages: - High temp gases need to be cooled - High maintenance and fabric replacement cost. - Large size equipment. - Fabric is liable to chemical attack.