Recommend dosage of ozone
- last update： 2019-04-11 10:48:56
Proposed Dosing of Ozone in Each Application Domain 1. Explanation of designation Feeding amount (additive): during application of ozone, fed ozone amount in unit quantity of some medium (such as water, air). [Unit:g/m3,mg/m3]Residual ozone conc
Proposed Dosing of Ozone in Each Application Domain
1. Explanation of designation
Feeding amount (additive): during application of ozone, fed ozone amount in unit quantity of some medium (such as water, air). [Unit:g/m3,mg/m3]
Residual ozone concentration: after feeding ozone which operates for a period of time, ozone content remained in unit cubage of this medium from consumed part of ozone and decomposed part of ozone. [Unit: mg/L,mg/m3]
Relation between PPM and mg/m3: PPM is unit of concentration, PPM=1/106 may be mass ratio, and may be cubage ratio.
Such as ozone concentration of 1PPM in air
Under normal station(0℃, 1 atmospheric pressure) is: 1PPM=2.14mg/m3
Under station of room temperature (25℃, 1 atmospheric pressure) is: 1PPM=2mg/m3
Such as ozone concentration of 1PPM in water
Under normal station(0℃, 1 atmospheric pressure) is: 1PPM=1mg/L
Half life: ozone is a kind of very active gas; it will compound to be oxygen by itself even if there is no other substance reacts with it. Therefore, ozone will attenuate by itself, the time for attenuating to be half period is called as half life.
Under normal temperature, half life of ozone in purified water is about 30 min.
Under normal temperature, half life of ozone in purified air is 45-60 min.
2. Referenced Feeding Amount of Ozone in Water Treatment
Type of application | Purpose of treatment | Feeding amount of ozone(g/m3) | Operation time of ozone (min) | Residual ozone concentration(mg/L) |
Purified water treated with RO film | CODSterilization to reduce COD | 1.5-3 | 5-10 | 0.3-0.5 |
Mineral water from deep well treated by ultrafiltration membrane | CODSterilization to reduce COD | 2-4 | 5-10 | 0.3-0.5 |
Spring water treated by ultrafiltration membrane | CODSterilization to reduce COD | 3-5 | 6-12 | 0.4-0.6 |
Treat district water supply with ozone and active carbon | CODSterilization to reduce COD | 3-5 | 6-12 | 0.3-0.4 |
Sterilization treatment to production water supply | CODSterilization to reduce COD | 4-6 | 6-12 | 0.5-0.6 |
Aquiculture | Reduce COD, reduce ammonia nitrogen and sterilization | 1-2 |
3. Referenced Feeding Amount of Ozone in Air Treatment
Type of application | Purpose of treatment | Feeding amount of ozone （g/m3） | Operation time of ozone (min) | concentration (PPM) |
Instrument, utensil and vessel of medical treatment | Disinfection and sterilization | 50-100 | 60 | 20 |
Refrigeratory | Disinfection and sterilization | 15-25 | 60 | 6-10 |
Food processing workshop | Disinfection and sterilization | 3-4 | 60 | 1-2 |
Food packaging workshop | Disinfection and sterilization | 30-40 | 60 | 10-15 |
Work clothing | Disinfection and sterilization | 25-50 | 60 | 10-20 |
General location | Mildew prevention and fresh keeping | 2.5-5 | 60 | 1-2 |
Bird egges | Mildew prevention and fresh keeping | 5-5.5 | 60 | 2-2.5 |
Banana | Antisepsis and fresh keeping | 5.5-8 | 60 | 2.5-3.5 |
Apple | Antisepsis and fresh keeping | 5 | 60 | 2 |
Vegetable (except leaf vegetable ) | Antisepsis and fresh keeping | 2.5-3.5 | 60 | 1-1.5 |
Fish, aquatic products | Antisepsis and fresh keeping | 1.5-2.5 | 30 | 0.5-1 |
Fish processing workshop | Deodorization and purification | 7 | 30 | 3 |
Slaughter workshop | Deodorization and purification | 5-7 | 30 | 2-3 |
Refuse dump | Deodorization, purification and sterilization | 25 | 30 | 10 |
Sewage disposal plant | Deodorization, Purification | 2.5-5 | 30 | 1-2 |
Mortuary | Deodorization,Sterilization | 7 | 30 | 3 |