2007 KGD Develop Filter with more than
80% efficiency at 10m/s
KGD staff designed first tunnel filter
with Negative Ionization
Festnings Tunnel OSLO Norway 1989
- Negative ionization
- Highest efficiency
- 2,100,000 cubic meters per hour
KGD staff designed first IEPÃ'® tunnel
filter
Gyeongju Tunnel South Korea
- Lowest running cost
- Low maintainance
- Improoved efficiency
KGD/Camfil-Farr NOx Gas cleaning is most
cost effective and the most compact system available
- More than 50000 hours without changing active components
KGD/Downstream Services Water
Treatment
Gyeongju Tunnel and Surak Tunnels
Korea
- High efficiency
- Low maintainance
- No Chemical discharge
KGD/AE
Technology
Doubles the time between filter
cleaning
Limits cell 'break-off'
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KGD staff designed first tunnel filter
with Saw-tooth ionizer
Festnings Tunnel OSLO Norway 1989
- Low maintainance
- Higher efficiency
- 50000 hours minimum cell life
KGD staff designed First Highest Velocity
Filter up to 35m/second
High speed filter for retrofitting into
tunnels
- 100% reversable
- 30 cubic meter per sec filter installed in 30 minutes.
- Self cleaning
KGD Waterless Cell cleaning
system
Industrial/Tunnel applications
- Reusable fluids
- Low maintainance
- No cell drying
KGD Self-cleaning
Filter
Tunnel Applications where 24 hour
continuous operation is neccessary
- Continuous operation
- Maximum velocity 10m/s
- No cleaning required
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