Equipment

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Air Contact or "atomization" products must make contact with the odorous gases to perform the act of deodorization. There are many gases which attain nuisance levels at a few parts per million. In fact, the vast majority of all odor problems involve total pollutant levels of a hundred parts per million or less. Consequently, to achieve success with atomization two factors must be correct. The deodorization product used must be capable of reacting with the odorous gases. And the equipment used must provide the best chance of placing the molecules of the deodorizer in contact with the molecules of the odorous gas or gases.

In exhaust stacks or collection chambers sufficient product may be atomized into the contained area based on the calculated air flow passing through or being collected during any given time interval. In the open air this is not so easily accomplished. In theory, delivering atomized particles of deodorizer as small and light as possible will send them along the same paths as the odorous gas molecules they are trying to contact. In practice, different gases have different molecular weights. Some rise rapidly and glide away for miles. Some hover near the ground and slowly leave the site. Since the deodorizer cannot change molecular weight to match up with a given odor, different deodorizers and reactants must be used in open-air situations to increase the opportunity for contact with different odorous gases. Identification of the gases involved helps to determine desired nozzle and particle size as well as desired deodorizer density and weight.

GOC offers and recommends low pressure, hydraulic atomization systems for most perimeter applications. The standard set up parameters for these systems are nozzles at 6 meter intervals and 3 to 4 meters (above ground) height. These systems will operate at 240 psi (pounds per square inch) of pressure or less. The typical nozzle implemented will have a capacity of no more than 2.7 liters per hour at continuous operation.
 

  In situations with heavier gases or where humidity and temperature inversions keep odors closer to the ground and dispersing more slowly, larger particle size nozzles spaced at 2 to 3 meter intervals and 1 to 1.5 meter heights may be required. Typical nozzles for these situations should have capacities of 4 to 6 liters per hour at continuous operation. In these situations dilution rates should be 1.5 to 1.6 times those for standard atomizing nozzles.

In smaller interior applications where ceilings are lower than 7 meters, and in exhaust stacks or treatment chambers, the use of compressed air instead of hydraulic power is recommended to power the nozzles. While the deodorizers are still diluted with water, the atomized mist produced by the compressed air is finer and "dryer" than that produced by the hydraulic system. Dilution rates with these systems will be 1.25 to 1.75 times the rates listed for standard parameter hydraulics depending on the size of the compressor implemented. Systems are available from GOC complete with compressor and motor. Additionally, various controllers and nozzles for use with existing compressors are also available. 

Incorporation products are blended or mixed into a liquid or solid substrate in specified dosages. Particle    size is only relevant in situations where nozzles spray or inject product into the air. In other situations, product diffusion is    minimal to nonexistent, resulting in product delivery at weights significantly heavier than air and often with limited or no exposure    to the atmosphere. Incorporation may be accomplished by dripping, injecting, spraying, or pouring the selected product into the substrate    to be treated. Gravity fed drip systems, automatic metering and dosing systems, pump injection systems and high capacity nozzle systems    can be specified and supplied by GOC on a case-by-case basis, or they may be locally engineered. 

" target="_blank">http://www.goctechnologies.com/aircon2.jpg"/>   BAT 508 Application Video IncorporationTreatment of solid waste   Drip systems may be as simple as a properly sized container with a properly sized opening in the base to allow administration of the    correct amount of product. Various types of metering and automatic dosing systems are utilized by GOC, ranging from gravity to PC    controlled. In situations where a potential client utilizes batch mixing or continuous mixing in its process, nozzle systems may be    attached to the batch tank or process tank and an automatic dosing system may be easily connected. Drip systems and metering pumps    are often utilized in grease traps, lift stations and wet wells, holding tanks, and smaller facultative lagoons.  

At compost sites,    if incoming material passes through a grinder or hammermill, product may be incorporated through nozzles attached to the discharge    conveyor. If various feedstocks are batch mixed, product may be incorporated in the batch mixer using the method described above.    If neither option is available, nozzles are attached to row turners or loaders and sprayed into the material to be treated utilizing    the turning equipment as the mixer.  

At compost sites, if incoming material passes through a grinder or hammermill, product may be    incorporated through nozzles attached to the discharge conveyor. If various feedstocks are batch mixed, product may be incorporated    in the batch mixer using the method described above. If neither option is available, nozzles are attached to row turners or loaders    and sprayed into the material to be treated utilizing the turning equipment as the mixer. At compost sites, if incoming material passes    through a grinder or hammermill, product may be incorporated through nozzles attached to the discharge conveyor. If various feedstocks    are batch mixed, product may be incorporated in the batch mixer using the method described above. If neither option is available,    nozzles are attached to row turners or loaders and sprayed into the material to be treated utilizing the turning equipment as the    mixer.