The Six Most Common Reasons Why Ozone Water Treatment Systems Fail
Ozone water treatment frameworks are utilized for an assortment of utilizations. Almost 1.6 billion gallons of metropolitan drinking water is treated with ozone. Practically totally filtered water has ozone added before the packaging step. Various products of the soil washing activities, particularly for prepared to eat nourishments, use ozone to guard the food from microscopic organisms and different microbes. It is significant that the ozone frameworks in these applications work dependably.
Understanding what sorts of things can turn out badly can help districts and industry settle on more intelligent choices with respect to the kind of ozone water treatment framework to purchase and why different highlights are significant. In this article we are alluding to city/modern scale ozone generators. We will cover the six most normal reasons why ozone frameworks come up short, procedures for forestalling these issues and appropriate instrumentation that can give an early admonition of possible issues.
Ozone Water Treatment Systems
озон ру интернет магазин water treatment frameworks take oxygen or dry air and convert the oxygen present into ozone. This ozone is then blended in with water for the particular water treatment application, for example disifection. There are various components that can make these frameworks come up short. This article attempts to aggregate them into six classes.
The commonplace disappointment systems include:
Reverse of Water into the Generator
Helpless Feed Gas Quality
Under Sizing the System
Helpless Ozone Transfer Efficiency
Ozone Generator Cooling
Erroneous Materials of Construction
Reverse of Water into the Ozone Generator
Business scale ozone generator can’t endure water entering the generator without having extreme harm. The potential for reverse exists since the gas should move from the generator into the water, so there is a pathway for water to reverse into the generator. This is compounded on the grounds that ozone can be infused, by means of a venturi, into water that is at a higher pressing factor than that within the ozone generator. In the event that there is an issue with the activity of the venturi or some adjustment in the downstream power through pressure, water can be constrained into the generator.
It is entirely expected to see check valves used to forestall the reverse of water, yet check valves are not a dependable gadget for this reasons, particularly given the extreme harm that can result from reverse. Check valves in this application have a high likelihood of disappointment. Most great ozone water treatment frameworks utilize a multi boundary way to deal with reverse avoidance utilizing a few aloof and dynamic gadgets to recognize and counter the reverse of water.
A model may be check valves, fluid snares and differential pressing factor observing interlocked with an ordinarily shut solenoid valve. Checking differential pressing factor depends on the way that in ordinary activity the pressing factor in the generator should surpass the pressing factor at the purpose of infusion, in any case the gas would not stream into the water. Setting off a solenoid valve to close disposes of the pathway for the water to arrive at the generator. Utilizing a typically shut valve implies that even with a deficiency of force, the valve is shut and the generator ensured.
Another method that is utilized is to put instruments in the gas line or fluid snares that can identify fluid water. These gadgets can be utilized to trigger the closure of the solenoid valve and the generator.
Without such assurance it is typically a short time until a situation emerges that makes the reverse happen and harm the ozone generator.
Helpless Feed Gas Quality
Ozone generators require a wellspring of oxygen to make ozone. Ozone is essentially three oxygen iotas associated together (O3). The air that we inhale contains about 21% oxygen, and is worked from two oxygen particles (O2). You can purchase unadulterated oxygen from modern and clinical gas providers. It is likewise conceivable to make oxygen utilizing a supposed oxygen concentrator. Little forms of these gadgets are utilized for home clinical purposes. They additionally produce a gas that is amazingly dry which is 90-95% oxygen.
Diverse ozone generators have distinctive ideal gas takes care of. A few generators work best with unadulterated oxygen, other require some nitrogen being available (1-4%). Different generators work from dry air. In all cases the gas feed should be very dry. This is regularly estimated as the dew purpose of the air, the temperature at which water noticeable all around will gather. For ozone generators this worth is ordinarily near – 100 degree F. This implies that there are a couple of parts for every million of dampness in the gas stream.
Dampness in the feed gas can bring about the development of nitric corrosive in the generator making the conditions for serious erosion. What’s more, dampness additionally decreases the proficiency of the ozone development response, diminishing yield.
To safeguard that the feed gas is the appropriate quality oxygen screens that report the convergence of oxygen in the gas can be utilized. Dew point screens, hygrometers, are accessible that can quantify the measure of dampness in a gas stream. These gadgets are regularly utilized in bigger ozone creating frameworks.
At long last, filtration is imperative to forestall particles, oil beads and fumes of hydrocarbon from entering the ozone generator.
Under Sizing the Ozone System
Indeed, even a well plan ozone framework won’t do any great in the event that it is modest. In certain applications it is not difficult to anticipate the legitimate size of the ozone water treatment framework and in different cases it is significant that lab and pilot field considers be led. This is particularly valid for applications like treating surface water for metropolitan drinking water or modern wastewater treatment.
The complexities of these applications, including occasional varieties, require broad testing before the last plan of the framework. When a framework has been constructed it is typically hard to build its ability because of the expense and space impediments that exist after the underlying establishment, if space for extension was not made arrangements for. For bigger undertakings, capable designing firms are probably not going to commit this sort of error, yet for more modest activities it is conceivable that helpless presumptions can prompt a modest framework.
Helpless Ozone Transfer Efficiency
In water treatment applications the ozone water treatment framework should make the appropriate measure of ozone and break down it into water. The ozone move productivity is the percent of ozone that breaks up out of the aggregate sum that was created. Just ozone that breaks down into the water can complete responses like purification, oxidation of natural particles or upgrading filtration.
Ozone has a restricted solvency in water. It is more solvent than oxygen, however less dissolvable than chlorine. The dissolvability of ozone is influenced by the accompanying boundaries:
The proportion of gas volume to fluid volume (G/L proportion): lower proportion builds proficiency
Air pocket size: more modest air pockets increment productivity
Ozone interest of the water: more popularity builds productivity
Ozone focus: higher fixation builds productivity
Pressing factor: higher pressing factor expands proficiency, explicitly the venturi outlet pressure
Confinement time: longer detainment time builds productivity
Temperature: lower temperature expands proficiency
An all around planned ozone water treatment framework will move >90% of the produced ozone into arrangement. While ozone can be created from dry air, the centralization of ozone delivered 1-3% is a lot of lower than frameworks that utilization oxygen feed from either fluid oxygen or oxygen concnetrators. These frameworks can produce ozone groupings of 6-10%. The most well-known feed gas frameworks for water treatment are oxygen based.
Fine air pocket diffusers or venturi are normally used to move the gas into the fluid. In one or the other technique for blending the appropriate G/L proportion, temperature, pressing factor, and detainment time to fulfill a given ozone request should be thought of. On the off chance that these contemplations are not considered appropriately, even with the perfect measure of ozone being delivered, the application may not be effective.
Ozone Generator Cooling
Ozone generator yield is straightforwardly relative to the temperature of the cooling water, for water cooled frameworks, and air temperature, for air cooled frameworks. Typically ozone generator makers give creation bends to their machines as an element of gas stream and force setting. These qualities are constantly founded on a particular bay water temperature or air temperature for their cooling frameworks.
Regularly, the yield of the machine will diminish by 0.5-1.0% per degree higher than the worth appeared on the creation bends or information table. In this way, if the cooling water entered at 20 degrees C rather than the predetermined 15 degrees C, the yield of the generator may be diminished by as much as 5%.
In cooling water frameworks that depend on chillers, the temperature of the water can typically be relied upon to be controlled, however on the off chance that the water to be dealt with is utilized as the cooling medium, than the water temperature can fluctuate. In drinking water frameworks, the treated water might be utilized to cool the generators. This water will in general be higher in the temperature in the mid year than the colder time of year, accordingly influencing yield. Specialists will regularly oversize a framework to represent the normal misfortune as water temperature increments. Where this isn’t done, the yield may not satisfy the application needs.
This issue is more intense with air cooled frameworks since encompassing conditions can shift fundamentally. In the event that the ozone framework isn’t in a cooled space, almost certainly, generator execution will drop off when temperatures rise. Along these lines, adding a cooling framework to the ozone generator fenced in area is frequently a smart thought where critical temperature varieties are normal.