National Restoration of Northern Illinois
143 South Rt. 12
Fox Lake, IL 60020
P: 847-587-2200

Monday - Friday:
7:30am - 4:30pm

The Process of Deodorization

When finding a solution to a problem, it becomes necessary to develop a procedure or process that should be followed to help ensure success. Often the more complex the process, the harder it is to solve the problem. Outlined below are some simplified procedural processes that effectively solve odor problems.

When called upon to deodorize a given situation, certain facts should be gathered concerning the nature and properties of the odor. Only then can the odor or combination of odors be identified. This is essential since different odors respond differently to certain processes. It is equally essential to locate the odorous source so that all contaminated surfaces and sub-surfaces receive the necessary treatments. Using moisture sensors, long wave lights and your nose, test all suspected odorous areas. After identifying and detecting the source, the following set of procedures should be enacted:

The Process of Wet Cleaning

The porous surface that can readily accept water and a detergent should be cleaned thoroughly. Hot Water Extraction Cleaning of fibers and other textiles is important to remove acidic soils, oils and greases, surface contaminants and prior solution applications. Hard porous surfaces like concrete, brick, wood, etc. should be scrubbed, pressure washed and sanded if necessary to dislodge deeply embedded odor causing compounds. Proper rinsing of the area will maintain a neutral PH which will help maximize the effectiveness of the next step. Note: Leave the area damp. Do not force dry.

The Process of Digestion

Digestion of organic soluble and insoluble wastes is best achieved by the use of a bacterial enzyme compound which breaks down these wastes continually until they are gone. During this breakdown ammonia, carbon dioxide and water are formed and discharged. This enzyme production and breakdown is ongoing until the area dries or the bacterial action is terminated. The action will cease if:

  1. A temperature of 60* F or higher cannot be maintained, or
  2. The bacterial culture is exposed to any prior or recently applied disinfectant type compound

Under favorable conditions, this process of odor removal by protease enzymes is exceptional. Let the area dry naturally - do not extract. After 24-72 hours the process is exhausted and clean water rinsing can be performed.

The Process of Odor Modification

Once digestion of most organic waste is accomplished (yet some odor persists) the application of a specifically formulated solvent-based odor modifier is effective. The aromatic compound should:

  1. Be pleasant to the insured
  2. Counteract odors on a wide range
  3. Possess some deterrent ability for pets
  4. Be mixable in water for cold fogging and wet spraying
  5. Be compatible with unbound anti-microbial compounds

The aromatic properties should neutralize odorous vapors and other chemical odors emitting from the source. The modification of odorous molecules by chemical action is the basis of modern deodorization today.

The Process of Bound Anti-Microbials

The application of what is coming to be known as bound anti-microbial compounds is definitely a breakthrough in the war against bacteria and fungus. These bacteriostatic products produce a long-term control and inhibit the growth of bacteria and fungus. The products are not meant to act as a corrective agent for severe contamination. After the processes of wet cleaning, digestion and modification, the application of bound anti-microbial is made. The components are registered by the E.P.A. and should be applied only as directed.

The Process of Oxidation

The use of oxidation for odor removal is accomplished by two popular methods. The first is the use of a hypochlorite solution (bleach). This solution applied to odorous compounds oxidizes the odorous sources by using hypochlorous acid. The compound kills odor-causing bacteria and fungus growth. However, bleaches can only be used on surfaces that can accept them - not carpet!

The second is the use of ozone gas to oxidize odorous molecules like smoke, putrefaction, skunk odor, etc. The oxidizing effects of ozone to change odorous molecules to non-odorous is fascinating because the action is effortless. Ozone chambers best deodorize contaminated contents. The process takes 24 hours or more. This process can be used after modification if necessary.

The Process of Sealing

Sealing is necessary only when it becomes cost prohibitive to remove the source any further. All contaminated porous surfaces should be sealed to ensure the complete success of odor removal. Clear and pigmented sealers are available for a wide range of surfaces.

In conclusion, odor removal is best attained by keeping the method as simple as possible. The best results are obtained by using the correct processes, in the right order, and under the right conditions.