Ozone (O3) can be found as a naturally ocurring gas in the upper atmosphere. It is often used as a safe (FDA approved) but very powerful disinfectant (3,000 times faster than
bleach). It:Rapidly oxidizes bacteria it comes in contact with, then reverts safely back into Oxygen (O2), making it one of the most environmentally friendly cleaning methods
available. Effectively deodorizes, disinfects, and destroys bacteria, fungi, allergens, and other odor-causing agents.Has long been used in water treatment, food sterilization and medical therapies for its remarkable anti-viral, anti-fungal, and anti-bacterial properties.
HOW DOES OZONATOR WORK?
Ozonator generate ozone, and using venturi suck into water, ozone in the water react with
bacteria and other organics. As a bactericide, ozone acts 3000 times faster than chlorine. It is the strongest oxidant commercially available for water purifier. One of the most striking features of ozone is its ability to remove odors by attacking the organisms which cause them.
Process Description of Ozonation System in STP Plant
Ozone plays very important role in Sewage Treatment Plants. When biological treatment
Is use in secondary stage, there is a carryover of micro Organisms in tertiary stage. Ozone being very strong oxidizing agent can effectively & quickly disinfects the Treated sewage water. Post reaction by product & unused residual ozone are safe to be disposed without any further treatment. Ozonation in waste water treatment is universally accepted & new mended by pollution control boards. The effectiveness of the ozone depends on multiple factors e.g target organisms load, Ozone contact time, ozone concentration, induced ozone dose, ozone mass transfer (dissolving) efficiency, purity of feed gas etc..
In waste water Ozonation the amount of ozone gets dissolved in waste water is the only reactive ozone & effective on pollutants & contaminants. This reactive ozone when reacts with the pollutants in waste water get consumed. So efficiency of Ozonation process also depends upon the efficiency of core waste water treatment & effective reduction in pollutants.
Generally waste water contains diversified constituents out of them ozone reacts with many of them in the process gets consumed. The ozone reacts on micro organism, colour, odour, COD, BOD, organics, inorganics, heavy metals, oil & grease, total organics carbon(TOC), volatile organics compound(VOC) etc..