I want to treat sliced carrots in ozonated water. The dosage i will apply is 1uL/mL i.e. 1 uL ozone/mL oxygen gas. If somebody could please help me with the amount of water I should take.
You can use a device to generate ozone and this device gives a specific concentration according to the time that the device is set to, for example, if it is set at a time of five minutes, the concentration will give you is 0.2 ppm, for example, and so on, and you can measure the concentration also with a specific kit, and ozone is a gas that dissolves quickly with water to give the roots that are responsible for its strong oxidizing power, the period during which it remains effective depends on the temperatures in the cold, its effectiveness extends further, and the concentration, contact time and other factors that may affect it, especially since we are dealing with foodstuffs, i.e. organic materials, so the presence of organic materials also reduces its effectiveness. For me, I used an ozone generating device (A2Z/AQUA-6, USA) which is simple to use and cost-effective for treating meat, and CHE-Mets®-Kit, USA to measure the ozone concentration generated in the water.
Ozone oxidation is by far the most effective water treatment process. It is also the most ecologically sound process as ozone is a natural gas that breaks down into oxygen within a short period of time.
What makes ozone this effective is its high oxidation potential (2.07V), i.e. its potential to react with other substances. The oxidation potential of ozone can be measured by the redox potential and comparing, ozone is about five times more oxidizing than oxygen and about twice as oxidizing as chlorine. Ozone has a well-documented kill rate of microorganisms such as fungus, bacteria and viruses. The high kill rate makes it possible to shorten the retention times and use smaller reaction tanks compared to disinfecting with other oxidants. In other words the investment cost for tanks and treatment plants are reduced considerably.
Apart from killing microorganisms ozone can be used to controls taste, odor and color. It can also be used for flocculation of organic material which simplifies for mechanical filtration.
The oxygen – ozone cycle
Ozone is essentially made up by oxygen. When an oxygen molecule (O2) is exposed to electric high voltage (or UV-light in the stratosphere), the oxygen molecule (O2) is split into two oxygen atoms (O1). The oxygen atom (O1) then connects to oxygen molecules (O2) and ozone (O3) is formed. Ozone then reacts with other substances and the single oxygen atom (O1) disconnects from the ozone molecule (O3), which then again turns into an oxygen molecule.
Click on the image below to enlarge.
Ozone is a natural gas
Ozone is an unstable gas with a very short half-life, which means that it reacts and disappears very fast. Ozone exists naturally in the atmosphere where it is a vital gas that protects us from harmful UV-radiation. The highest concentration of ozone is found in the stratosphere, which is also called the ozone layer.
Ground-level ozone is a greenhouse gas and can be harmful to the environment due to its high oxidation potential. Ground-level ozone is created as a reaction from certain air pollutants and sun light (UV-light), called the photolysis reaction. The highest levels of ground-level ozone are found in much polluted cities like for example Mexico City or Huston, Texas.
Ozone produced by ozone generators is harmless to the environment.
If you intend to wash the carrot with ozone water the first question is which concentration do you desire in the washing water. Disinfection will be dependant on the concentration.
well, first of all if you want to make disinfection for carrot then there is some kind of ozone generator that can give you the dose automatically and used for fruits and vegetables disinfection. but those kind of generator are self-product ozone with out O2 pump.
but here is depends on many things not only the water volume but the time that you will apply Ozone dose through water and the impact of ozone on carrot not the volume of the water only.
so first I suggest you to read and look on this site and you will find the ozone dose and time for desertification which will be vary according what do you want to treat if there is organic pollutants or microbes so the mount of water can be calculated also according to the time.
also the life time of ozone in water is depend on many factors one of them is Temperature, the higher temperature the fast ozone dissolution.
have a look on this site and you will gain a good knowledge
http://www.spartanwatertreatment.com/ozone-fruit-and-vegetable-washing.html
all the best
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