I have not heard of hydrogen peroxide being used as a water treatment, more as a surface wound treatment. I have used uv sterization on clean lab equipment to kill certain bacteria present, and heard of its use to help sterilize water before drinking. However if Wastewater has organics, uv light may not be as effective. Hydrogen peroxide can be toxic if too much injested by humans or animals. uv light sources also produce ozone.
In some instances, certain bacteria can be used to breakdown pollutants and improve Wastewater. Some bacteria are considered beneficial. So killing all bacteria in some circumstances and stages of water treatment may be counterproductive. Best to have the specific situation and objectives evaluated with a water treatment expert (Licensed expert is preferable to prescribe or at least review in drinking water circumstances and to help address the complexity of water and wastewater issues possible and address your goals and expectations).
UV used to clean water is not viable unless it is exposed for long periods of time. Filtering systems which use UV are not as effective as other nano membrane applications because the water is not exposed to UV light long enough to do any good. Hydrogen peroxide is not even on the list for cleaning water, so don't use it! We use a combination of biological and synthetic membranes to clean water of the worse kind. Mother Nature can do it and so can we!
Both of them.
In water treatment or wastewater treatment you cannot use only one of them.
Every process has its own advantages and disadvantages.
This is why, in wastewater treatment plants treating wastewater for potable water, we have a huge series of processes.
H2O2 and UV may be used at some level in such series, especially the second one.
H2O2 is rarely used in wastewater treatment plants.
Finally, real wastewater experiments will tell us which one is more effective in killing bacteria. Disinfection by-products (DBPs) is also another parameter to be considered for both processes, H2O2 and UV.
Peroxide can be highly effective for bacteria in either water or waste water. If you're talking about drinking water, the main issue is that it does not offer a disinfection residual. Excess peroxide is easily removed by activated carbon or destructed with UV light. UV by itself does an excellent job against bacteria in a drinking water source, but again does not offer a disinfectant residual. It might not be a suitable choice for waste water depending on what is in it. The main issue is that suspended solids will cast shadows which prevent the light from actually hitting the target organisms.
Agree with Mark Brotman. but it is important to know what type of water treatment we are talking about.
Mr. Freund brings up a good point because if you try using UV light or peroxide in the type of contaminated water we clean you'll lose! Wood Extractive waste water used to make bio-fuel contains over 100 toxic chemicals, all of which will kill you if you drink it. So, yes, all depends on the type of water you are trying to clean. We clean water with a hybrid treatment using no chemicals, part biological, part electrodialysis, part synthetic. If I could post a video to show you, I would. The science which makes all this possible is still being tested for long term results.
There are many methods being use at the moment to clean water, some of them work pretty good and some don't. But even the ones that do can't seem to get everything out. So we decided to change the way we have been cleaning water for decades by using a combination of filtration membranes and electrodialysis. Note that there are 32 membranes used which are made from plant and tree fibers. Each membrane deals with specific elements in the water in relation to metals and chemicals or organics for that matter.
In experimental applications, Chir Pine needles were used as an absorbent to remove AS(V) ions from aqueous solutions. Maximum absorption has taken place at pH 4.0, adsorbent dose 1g for 50 ml of 10mg/l arsenic solution, contact time 35 min. and agitation speed 100 rpm. Other research showed that tomato peel or apple peel can remove harmful substances from the water including dissolved organic and non-organic chemicals, dyes, and pesticides. It was established that a peel can remove anions such as phosphate, arsenate, and chromate ions from water. Banana peels contain nitrogen, sulfate, and carboxylic acids; the acids are responsible for the peel's ability to bind toxic metals and remove them from the water. Banana peel do not kill parasites or bacteria. The research was based on the ability of banana peel to extra lead and copper ions from water and the parameters involved. The kinetics of copper and lead uptake reached equilibrium in ten minutes and the extraction of metal ions was at pH 4. Understand that these test using these mediums were preliminary. Farther research indicated that these mediums were all over, especially some plants that did this in nature naturally. Our objective was to find a combination of plant fibers that could off-set the other and complete the cleaning process. The other was how to apply these applications to an actual working filtering system that actually produced clean drinking water without the application of chemicals. We have accomplish this and we have a working model. Now we must find the key to manufacturing them in volume so that they can be used in countries where clean water is not available. No one can drink the water we just cleaned and here is a photo I took at home when I brought the test results home to show my wife.
It all depends on the type of bacteria, the dose of hydrogen peroxide, water temperature and other factors.
Combining UV with hydrogen peroxide at a relatively low concentration (10-50 ppm) would be a very effective method to kill bacteria in potable water. Ozone as well can do great job...
For potable water UV is a better option for killing bacteria as it will not lead to the addition of any chemicals too.
I recommended use for potable water is UV is suitable to killing the pathogens, bacteria and organic materials because it not need add chemical treatment to potable water.
if water is clear easy way is to use UV-Light !!! but if the water to be treated is no clear usage of Ozone or H2O2 is best use in disinfection algside very less effective in degradation of organics!!!
Yes, I recommended the use UV, but you need the water is clear
UV or Hydrogen Peroxyde and the operating conditions are the main elements of killing bacteria. The efficiency of the killingbacteria processes depends on the agent of killing (UV or Hydrogen Peroyde) and the operating conditions such as: Temperature, Color of water, presence of solids in water, pH of medium, and so on.
With my best regards!
Dr. Adel Oueslati
UV is good only for thin flows (10 cm maximum). Better ozone: effective, inexpensive, oxygen as waste.
I can see that unless you put the research in front of some people, too much guessing comes into play! You CANNOT use peroxide to clean water you are going to drink! Peroxide doesn't clean everything, especially in water. I have some fracking water if anyone wants to add peroxide to it before you drink it. You won't make it to the hospital! Get this and get it straight! Water will always become contaminated with things we know nothing about because we keep polluting the air, water, and soil. When it rains, it rains acid rain. So go back to the drawing board and start rethinking what you just asked because neither one, peroxide or UV lighting is enough to clean the water good enough to drink! We can barely do that with all the high tech we are using now!
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