Disinfection is regarded as the major mechanism for inactivating/destroying harmful organisms, to prevent the transmission of waterborne diseases to downstream users and the environment. For the disinfectants to be effective, the wastewater must be sufficiently treated, before disinfection.
But, what do we know about ozone? Is it harmful? Is it good? Can ozone cause problems?
How does ozone cause a problem?
Ozonation is a widely utilized technology in the drinking water, food and beverage, biotechnology, pharmaceutical and other production industries. It is used in the pre-treatment stages of water treatment to kill bacteria, and breakdown organic pollutants.
However, if too much residual ozone remains, it can cause corrosion difficulties in downstream infrastructure, and unintended oxidation of manufactured products, as well as health dangers, if consumed. As a result, ozone treatment is critical.
What is UV wastewater treatment?
Another disinfection approach for killing disease-causing organisms in wastewater effluent, in onsite wastewater treatment systems is ultraviolet light. UV light destroys microorganisms' genetic material, preventing them from reproducing.
How does UV work to break ozone?
UV catalyses the breakdown of ozone into oxygen and water. It removes residual ozone while, also acting as a disinfection barrier in the treatment process, with the only by-product being harmless oxygen.
Because, of the specialized nature of this application, each ozone destruction or removal requirement must be reviewed, prior to recommending a solution.
How can UV treatment affect ozone destruction?
Ozone in water is rapidly destroyed by germicidal UV radiation. As a result, the 254 nm wavelength produced by low-pressure germicidal UV lamps is very effective, at removing ozone from water.
Dissociation, which occurs when 254 nm UV light "breaks" one of the oxygen bonds in an ozone molecule, is the mechanism for eliminating ozone. Each ozone molecule is transformed into one oxygen atom and one oxygen molecule, as a result of this reaction. Therefore, oxygen molecules are formed when free oxygen atoms combine.
How much energy is necessary to destroy ozone?
Whilst, UV may easily destroy ozone, it requires more UV energy than microbe inactivation. A minimum UV radiation of 900 J/m2 is necessary as a rule of thumb, compared to a level of 300 J/m2 required for disinfection.
As a result, in order to assure effective ozone destruction, UV system providers, such as the Netsol Water ultraviolet purification system, are frequently utilizing "flow-rate adjustment" of 30% - 40% of a disinfection system's flow-rate. For higher flow rates, a modified UV reactor with specific internal baffles is used.
UV treatment characteristics
The gadget has minimum maintenance requirements and has no effect on the smell, taste, or pH of the UV-treated water. It is capable of disinfecting water effectively without the need of chemicals.This safe disinfection will completely eliminate hazardous microorganisms, while also destroying ozone.
Conclusion
Ozone can come from a multitude of sources and is frequently used as part of a full water treatment system. However, leftover ozone poses a possible health risk and can harm finished goods, as well as processing and fabrication equipment. UV removal of ozone has the advantage of not requiring chemicals that may leave residuals.
Furthermore, ozone dissociation with UV may aid in the oxidation of some TOCs.
Netsol Water - A market leader in water treatment solutions
Netsol is India's leading water and wastewater treatment company, contributing to projects and services related to water and wastewater treatment. Adopting our UV water disinfection technology will assist you in becoming a "Green Citizen."
Our UV water disinfection method is safe for the environment. UV does not require chemicals and generates no waste. We offer UV treatments and UV membrane technology, to successfully demolish high ozone concentration in wastewater.
Netsol Water is Greater Noida-based leading water & wastewater treatment plant manufacturer. We are industry's most demanding company based on client review and work quality. We are known as best commercial RO plant manufacturers, industrial RO plant manufacturer, sewage treatment plant manufacturer, Water Softener Plant Manufacturers and effluent treatment plant manufacturers. Apart from this 24x7 customer support is our USP. Call on +91-9650608473, or write us at enquiry@netsolwater.com for any support, inquiry or product-purchase related query.
