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  Activated carbon
adsorption method
Microorganism chemical
adsorption method
Plasma / ozone /
photocatalyst oxidation method
Design
standard
Air volume : 50cm m(20℃)
Contaminant: offensive odor (hydrogen sulfide, methyl mercaptan, ammonia, trimethylamine, formaldehyde)
Offensive odor intensity : entrance (air dilution olfactory method over 1,000)
exit (air dilution olfactory method 500 below)
treatment efficiency : hydrogen sulfide over 90%, formaldehyde over 90%, ammonia over 90%
superficial
velocity
0.5m/sec 0.3m/sec 1~20m/sec
pressure
loss
150mmAq 150~200mmAq 100mmAq below
Main body
size
3,500w x 5,000L X 4,000H D4,000w x 7,000h X 2sets 2,500w x 2,500L X 2,300H
Installation
area
4,000mmW X 7,000mmL 6,000mmW X 12,000mmL 4,000mmW X 4,000mmL
Merit Reasonable driving cost
Reasonable installation investment cost
Low concentration offensive odor with outstanding alkaline Acid + alkaline gas treatment
Eco-friendly drug/ No secondary pollutants like water waste as catalyst is not used.
beneficial to high concentration complex offensive odor gas
Great efficiency
Reasonable driving cost
Reasonable installation investment cost
Applicable to almost all the type of offensive odor.
No secondary pollutants.
The smallest installation space.
No pressure loss
Available to all the offensive odor
Demerits Secondary pollutants due to activated carbon
Water waste.
Requiring corrosion - regular activated carbon exchange / regenerating facility.
If 50~60% moisture
existing in gas, trouble may be caused.
Requiring microorganism initial stability periods.
Large Installation site and expensive installation cost.
Growth condition of the microorganism has to be secured.
Requiring maintaining Gas, temperature, and humidity.
It has to be careful in winter season because when error it takes long restoration time.
Oh radical generation Exchange period
5,000 ~ 6,000 time