MIT DEGASIFIERS
A Degasifier, also known as a decarbonator or aerator, is a mechanical system designed to strip dissolved gases from water. It typically consists of a vertical packed tower, a blower, and a sump. Water enters from the top and trickles downward over packing media, while a stream of air is forced upward by the blower. This counter-current flow maximizes contact, allowing volatile gases to escape into the air stream and be vented safely.
Why Degasification Matters
- Carbon Dioxide (CO₂): When dissolved in water, it forms carbonic acid, which lowers pH and accelerates corrosion in pipes and equipment.
- Hydrogen Sulfide (H₂S): Not only does it smell like rotten eggs, but it’s also toxic and corrosive.
- Methane & VOCs: Can pose safety risks and interfere with treatment processes.
By removing these gases, degasifiers:
- Improve water stability
- Protect equipment longevity
- Reduce chemical dosing needs
- Enhance ion exchange efficiency in demineralization systems
Benefits:
- Chemical-free operation: No need for acid or caustic
- Low operating cost: Mostly driven by blower energy
- Simple maintenance: Few moving parts
- Environmentally friendly: Reduces chemical waste and emissions
Applications:
- Municipal water treatment: pH stabilization before distribution
- Power plants: Protecting boilers from acidic corrosion
- Pharmaceuticals & electronics: Producing ultrapure water
- Industrial processes: Removing VOCs and corrosive gases