Ozone application in the restaurants
Ozone because of its strong oxidation capability and its green nature is an ideal disinfectant for the restaurants. Ozonated water is an organic strong anti-microbial water which kills the microbes in seconds . The use of ozonated water will prevent microbial outbreak like current E.coli outbreak in Chipotle . Ozone as an organic disinfectant does not change color and taste of the fruits, vegetables, and meats . Ozonated water in the restaurant can be used for surface sanitation, disinfecting cooking wares, washing sinks with very small off gassing of ozone. This will help to remove the smell in the restaurant environment and disinfect the air. Deodorizing the air is another advantage of using ozone in the restaurants.
Ozone Solutions has recently developed a specific product for the restaurants, this unit is able to generate more than 1 ppm of ozone at diverse flow rates(1-10 gpm). Please call us for more detail and pricing. Let’s move forward for sustainable restaurants!
. http://www.ozonesolutions.com/info/e-coli-0157-h7-reduction-with-ozone, accessed on Nov. 2015.
. http://www.reuters.com/article/2015/11/05/us-chipotle-mexican-ecoli-idUSKCN0ST2JB20151105, accessed on Nov. 2015.
. Gholamreza Zahedi, Russel Hariss, “Efficacy test of ozone in an industrial beef harvesting plant”, International Ozone Association Proceedings of the Pan American Group Regional Conference, Dallas, TX, September 19-23, 2015.
Ozone in Onion Processes
Ozone kills microorganisms which can cause mold. So using ozone in onion storage room will prevent molds on onions and will increase onion shelf life. Ozone also prevents surface discoloration in onions.Another interesting advantage of using ozone in onion storage is decrease in onion weight loss. Ozone treated onions have less weight loss compared to untreated onions . Ozone also kills Asperigillus Niger which Causes Black Rot Disease in Onions .
In the following, an installation of Ozone Solutions in Washington State has been presented. The facility is 120 ft wide and 350-ft long and has 2 bays.
Ozone Solutions Installation at Ventco of Kennerwick, WA
. horttech.ashspublications.org/content/10/3/608.full.pdf , accessed Oct. 2015.
U.S. watermelon production in 2012 totaled more than 3.9 billion pounds. The value of fresh market watermelons in 2012 is $520.8 million . Most of the watermelons harvested in the United States are sold as fresh produce. The fruit should be consumed within two or three weeks of harvest.
Watermelons produce low levels of ethylene, but exposure of fruit to as little as 5ppm ethylene causes softening, rind thinning, flesh color fading, and over ripening. Honeydew and Persian melons are moderate producers with high sensitivity to ethylene. Cantaloupes are high ethylene producers but have moderate sensitivity. Effects of ethylene are loss of firmness, yellowing and an increase in volatiles.
Long distance shipment of melons benefits from controlled atmosphere storage with high carbon dioxide which retards decay development, color change and softening.
Ozone quickly can destroy ethylene and keep the melons in a good condition.
For the water melon cutting process, ozone can be used for disinfecting the knives and shells and at the same time ozone will increase the shelf life of sliced watermelons.
The following is the process for using ozone in melon slicing:
Watermelon → Selecting → Washing by water → Peeling → Cutting → Putting on polystyrene trays → Preliminary wrapping by polyethylene or polyvinyl chloride → Ozone blowing into the package containing the fresh-cut → Complete wrapping by polyethylene or polyvinyl chloride → Storing at 4o C → Watermelon fresh-cut for consumption
It can be noted that ozone blowing into the package containing watermelon fresh-cut decreases the number of microbial cells in the product. The longer the treatment time, the lower the number of bacteria, yeasts and molds in the product. In addition, during the storage, by using ozone, the fresh cut melons can last for an additional 7 days .
. http://www.agmrc.org/commodities__products/vegetables/watermelon, accessed August 2015.
. Le Van Viet Man, Tran Quoc Huy, STUDY ON PROLONGATION OF WATERMELON FRESH-CUT SHELFLIFE BY OZONE TREATMENT, Science & Technology Development, Vol 11, No.09 – 2008 .
U.S. Department of Agriculture (USDA) research has shown that fumigating honeycombs with ozone gas can eliminate pests and pathogens that threaten honey bee health and productivity. Now, ozone fumigation may also help reduce pesticide levels in honeycombs .
The study demonstrated that fumigating honeycombs with ozone gas at concentrations of 215 to 430 ppm kills all life stages of the greater wax moth. The kill also depended on the ozone exposure length.
Ozone also destroys spores of the chalkbrood fungus after 24 to 36 hours of exposure using 1,500 ppm. Another honeybee pathogen, the American foulbrood bacterium, required substantially longer exposure times and an ozone concentration twice as high. Studies also show that ozone treatments also degraded the pesticides in honeycombs .
Ozone Solution is proud to provide fumigation chambers for honey Comb disinfection.
. http://www.ars.usda.gov/is/pr/2014/140313.htm, accessed August 2015.
. http://todayscience.org/AS/v1-1/AS.2291-4471.2013.0101001.pdf, accessed August 2015.
Legionella causes Legionellosis or Legionnaires disease. Most notably L. pneumophilia. Legionella species are the causative agents of the human Legionnaires disease and the lesser form, Pontiac fever. Legionella transmission is via aerosols by the inhalation of mist droplets containing the bacteria. Common sources include cooling towers, domestic hot-water systems, and fountains. Natural sources of Legionella include freshwater ponds and creeks. Outbreaks of Legionnaires disease have occurred in or near large building complexes such as hotels, hospitals, offices, and factories.
Initial symptoms are flu-like, including fever, chills, and a dry cough. Advanced stages of the disease cause diarrhea and nausea. Legionnaires disease can be very serious and can cause death in up to 5% to 30% of cases.
The biofilm formed by Legionella has been observed in PVC, stainless steel, rubber, wood, and copper. The biofilm formation can especially be found on the surface of water pipes, tower basins, and heat exchangers. Ozone successfully removes Legionella. It has been found that at an Ozone concentration of about 0.3mg/liter, a 4–5 log10 reduction in the number of organisms is achieved within 20 minutes . Ozone not only removes Legionella, but it also helps to lower corrosion in tubing materials and reduces scale level .
It is recommended to keep the residual of disinfectants, so when Ozone is used, a trace of a second disinfectant, like Monochloramine, is needed. Ozone instantaneously inactivates Legionella.
. Edelstein PH et al. (1982). Efficacy of ozone in eradication of Legionella pneumophila from
hospital plumbing fixtures. Applied and Environmental Microbiology , 44:1330–1334.
. http://www.ozonesolutions.com/info/using-ozone-in-cooling-towers, accesses July 2015.
Arsenic is a toxic compound present in nature. The poisoning of arsenic in the human body was reported to show various health disorders such as skin and liver cancer, nervous system damage, hepatic haematological disruption, and even death for dosages ranging from 70 to 180 mg .
Arsenic may occur naturally in dissolution of arsenic-bearing minerals, electro plating, gold mining, fossil fuels, and other industrial discharges. Arsenic may enter into the human body through arsenic-bearing food, drinks, or air. The major passage of entrance is through drinking water. Arsenic contamination of groundwater and the associated health risks have been reported in many parts of the world such as Bangladesh.
Arsenics can be found in three formats: As(III), As(V) and methylated arsenic. As (III) is reported to be 25–60 times more toxic than As(V) and several hundred times more toxic than methylated arsenicals. So, converting As(III) to As(V) will decrease toxicity of As(III) noticeably. Ozone as a strong oxidant and is used to oxidize As(III) and make it less toxic. Ozone oxidizes As in seconds and the reaction is very fast. The As(V) then is bigger in size and can be removed by a filter. Ozone Solutions provides ozone generators and filter solutions for this type of application.
A recently completed study at the University of Houston  examined the effectiveness of seven oxidants for converting As III to As V. These were chlorine, permanganate, ozone, chlorine dioxide, monochloramine, ultraviolet (UV) irradiation and Filox, a manganese-oxide-based solid media. Ozone was extremely effective at As III oxidation; complete oxidation was achieved in less than 15 seconds. No adverse effect was observed in the presence of either dissolved manganese or dissolved iron.
. Arsenic in Drinking-water, Background document for development of WHO Guidelines for Drinking-water Quality, World Health Organization 2011.
. Ghurye, G. and D. Clifford. 2000. Arsenic (III) Oxidation by Chemical Oxidants, UV and a Solid-Phase Oxidizing Media. American Water Works Association Inorganic Contaminants Workshop. February 28, 2000.
There are many benefits of ozone for the agriculture industry. One of the obvious ones is air treatment and odor control. As many states are allowing/considering the medical use of marijuana, the demand for growing marijuana has increased significantly. One of the problems for the growers is the strong smell of the marijuana. The smell during the flowering is very strong and it is objective to many people. In addition to marijuana, there are dozens of plants that can produce offensive odors when mass produced indoors.
Several strategies, like using carbon filters, have been employed by growers to mitigate the smell. Filters need to be changed frequently when they are saturated with odor. Ozone has also been employed for the smell removal. The reaction between ozone and the odor is very fast and breaks down the smell quickly. Ozone also disinfects the air and kills the contamination and molds.
There are some histories of unsuccessful applications of ozone for the farms. Most often, the unsatisfied users complain ozone has been harmful for the people or the plants. The myths come from misunderstanding the ozone application and safety levels. Ozone generators should be carefully sized based on the area of the farm, to be safe for the plants and the people. Also, there are options to install ozone generators on the air ventilation systems. In this case enough contact time should be considered for ozone to remove the smell.
Ozone is an oxidant produced through green technology. It reverts back to the oxygen it is produced from and creates a microbe free environment for the plants and the people but it should be carefully sized for each farm and odor removal.
NOx is a generic term for NO (nitric oxide) and NO2 (nitrogen dioxide). It is produced from the reaction of nitrogen and oxygen gases in the air during combustion, especially at high temperatures. NOx gases are formed whenever combustion occurs in the presence of nitrogen, like: automobiles, construction equipment, boats, power plants, industrial boilers, cement kilns, turbines and etc .
NOx mainly impacts respiratory conditions causing inflammation of the airways at high levels. Long term exposure can decrease lung function, increase the risk of respiratory conditions, and increases the response to allergens. NOx reacts with ammonia, moisture, and other compounds to form small particles. These small particles penetrate deeply into sensitive parts of the lungs and can cause or worsen respiratory disease, such as emphysema and bronchitis, and can aggravate existing heart disease.
NOx can be removed utilizing ozone in the following two methods:
- Direct method: in this method, NOx will be fed through a corona discharge unit. Generated ozone will convert NO and NO2 to N2O5. In spite of NO, N2O5 is very soluble in water and will produce HNO3 which can be sold commercially. The direct method has not been commercialized yet.
- Indirect method: In this method ozone first is generated in a generator and then is injected to the flue gas stream that contains NOx. Ozone convers NOx to N2O5. In a wet scrubber N2O5 is absorbed. This process has been commercialized and has reached 90 percent NOx reduction.
- http://dwb.unl.edu/teacher/nsf/c09/c09links/www.casahome.org/nitrogen.htm, accessed Jun 2015.
Petroleum products are made from crude oil which can contaminate the environment. Because there are many different chemicals in crude oil and in other petroleum products, it is not practical to measure each one separately. However, it is useful to measure the total amount of hydrocarbons which is referred to as Total Petroleum Hydrocarbons (TPH). Chemicals that occur in TPH include hexane, benzene, toluene, xylenes, naphthalene, fluorene, other constituents of gasoline, jet fuels, and of other petroleum products.
Gasoline at the gas stations, accidental spill or leak of petroleum products can contaminate ground water, soil and weather. TPH components can evaporate and enter the lungs. You may be sick by drinking water from a well contaminated with TPH. Children may be exposed by playing in soil contaminated with TPH .
TPH can cause headaches and dizziness at high levels in the air. Another compound can cause a nerve disorder called “peripheral neuropathy,” consisting of numbness in the feet and legs. Other TPH compounds can cause effects on the blood, immune system, lungs, skin, and eyes. The International Agency for Research on Cancer (IARC) has determined that one TPH compound (benzene) is carcinogenic to humans .
Ozone will oxidize TPHs to carbon dioxide, water and oxygen. The green nature of ozone and its economic aspects has made ozone the best candidate for TPH removal. Ozone Solutions has a long history of providing soil and groundwater remediation systems to remove TPH [2-4]. The products can produce ozone in a diverse range from 20g/h- 5000g/h. Some of the products are stationary and some of the products are mobile trailers which can be dragged for any site remediation. The following figures shows our installation results for several location is USA.
. http://www.atsdr.cdc.gov/toxfaqs/tf.asp?id=423&tid=75, accessed Jun 2015.
If the bird flu virus is detected in a bird, whole flocks are killed in the barn. The carcasses usually are composted in the barns where the birds had been living. It can be months before the farms are back in operation.
The bird flu virus can be killed by heat (90 oF for three hours and or 100 oF for 30 minutes). Ozone as a very strong oxidant that can be employed for treating the infected barns and farms. Ozone can be sprayed to wash the surfaces. Also, after wash down, it is possible to shock-treat the barns and buildings with gaseous ozone. Ozone is produced onsite and only needs electricity to operate.
Another advantage of using ozone is that there are no chemicals left on-site, which makes ozone unique for this purpose.
Ozone Solutions provides mobile ozone systems which are perfect for this application. These systems can be employed later in the farm . Do not hesitate to contact us for more information on how Ozone Solutions can partner with the Poultry Industry and solve many of the problems the bird flu causes.
Ozone Solutions also provides ozone trailer systems that will serve as excellent shock treatment solutions. These systems can be employed later in the farm . Do not hesitate to contact us for more information on how Ozone Solutions can partner with the Poultry Industry and solve many of the problems the bird flu causes.