Anybody entering a swimming pool contaminates the water either from secretion or just from washing off.
On average the human body will absorb half a litre of pool water every hour. So you can only imagine what sort of harmful contaminants are being absorbed into your body whilst swimming.
Ozone (O3) is a very effective disinfection agent and can be used in swimming pools to replace chlorine and bromine containing disinfection chemicals. The advantage of the use of ozone compared to the other swimming pool treatment agents is the fact that the swimming environment will increase dramatically.
Swimming pool water gets polluted & contaminated by swimmers & environment. For better safety of users it is essential to continuously trend & disinfectant the pool water for contamination over long period of time, all across the world chlorine was used as a primary disinfectant. But use of chlorine has many disadvantages due to which alternative technologies are becoming popular. Techniques of pool water treatment.
Among many other alternatives use of ozone is the most popular across the world. Most of the hotels & resorts use ozone for swimming pool water treatment.
Today, worldwide swimming pool water is treated with ozone, sometimes reducing the use of chlorine, depending upon the type of pool and usage. The use of chlorine in pool produces ammonia and halomethanes in reaction with urea from urine and perspiration in water. These halomethanes are highly carcinogenic in nature. It is these halomethanes and ammonia in water which create eye and nose irritation along with other side effects like bleaching of hair and other skin problems.
Addition of ozone controls these halomethanes formed as a by-product of chlorine reaction and reduces the formation of ammonia which is the chief eye irritant in pool water. Ozone treatment makes the water pleasurable to swim in. Ozone also destroys all the water borne pathogens and controls the growth of algae and other bacteria as well. In addition, ozone acts as a micro-flocculant which helps the flocculating agent added in to the water to further improve the filtration rate. This reduces the turbidity of water and makes it crystal clear. Ozonised water feels completely free of any irritation, free of chlorine syndrome; like drinking water.
Ozonised water is so clear that the water body looks a healthy blue, clear, fresh, soft and sparklingly clear.
Advantage of using ozone is that it is unstable and converts back to oxygen, leaving no trace of residual toxicity in water. However, for a use like swimming pool water treatment where the water, once disinfected, comes back for re-disinfection after a period of 6 to 8 hours or less depending upon the turn over cycle. Since there is no residual ozone in water, bacteria introduced by a bather or through atmosphere, will survive and multiply. Hence, it is essential to use chlorine in addition to ozone to maintain a bacteriastatic level in the pool water; meaning bacteria cannot survive in this water nor multiply. For this reason chlorine is still used in swimming pool water treatment along with ozone. In this type of system, typically, ozone is the primary disinfectant, while chlorine is used to maintain the residual disinfectant level so that bacteria cannot proliferate. As per the norm, regardless of what additional disinfectant used in pool water treatment, for safe operation, residual chlorine level of 0.5 ppm at the pool water inlet and 0.2 ppm at the pool water outlet should be maintained. With addition of ozone, the amount of chlorine required to maintain these 0.5 ppm and 0.2 ppm levels in pool water, is reduced. This system of ozonation followed by chlorination drastically improves the quality of water for the pleasure of abather.
However, at no point, should chlorine be dispensed with using ozone alone as disinfectant for the swimming pool water treatment as this cannot control rapid growth of algae and bacteria efficiently.
Installation of ozonator for pool water treatment is simple. A SS 304 ozone injection skid is used for injecting and dissolving ozone in water. The skid contains a SS 316 Venturi injector, a SS 316 static mixer and a SS 316 booster pump to boost the line pressure across the injector to create the required suction for the intake of ozone into water. The inlet and the outlet lines of the ozone injection skid are connected to the existing pipe taking filtered water to the pool after sand filter. A valve in the main pipe line between the inlet and the outlet junctions is installed to divert some flow in to the injection skid. The ozonised water from the injector mixes with the water flowing in the main water body downstream, disinfecting it. Chlorine is injected after ozonation. The ozonised water; after chlorination; enters the pool.
Ozone plant is installed inside the water treatment room. This is a very simple installation. Normally ozonator are maintenance free and have no other consumables except atmospheric air and low electricity, making ozonation a very attractive proposition for pool water treatment, even for existing pools.
Ozone is only powerful oxidizing agent for swimming pool. Ozone has to be replaces in the place of chlorine and other chemical disinfectants. Ozone provides clean, odorless and healthier pool which do not cause red eye or skin irritation. We at ELTECH have specially designed & manufactured various ozone generators for swimming pool, which is safe and environmental-friendly