Hi All,
Which water treatment disinfectant chemical disinfects all types pathogens in unsafe water? The water treatment chemical must not leave a harmful residual and should not take the treated water off WHO guideline parameters for safe drinking water.
Regards
Justin
Quantum disinfection - Silecte from Claire technologies is the perfect solution for your disinfection requirement. This is a non electrical, non chemical , non thermal which kills pathogens instantly when it comes in contact with the media.
Published by K.V.RAMAN IYER
Hello Sir,Ozone disinfection is perfect.But costly than UV and chorination.
Published by MOHAMMED NAZEER, Lead role in GE Power water
Hi Justin Take a look at the following product brilliant thanks Bruce contact me on bruce@cwp1.co.za also very inexpensive we also have a range of other biological products that we could introduce you to depending on your needs and applications Regards Bruce
Published by Bruce McIntyre, Employee at Biopure
Dear sir,
Enclosed i send you our report on a live trial we have executed.
It matches ALL your requirements.
Key is the unique way we have stabilised our hydrogen peroxide, which makes it 100% biodegradable, free of metals like silver.
A simple dosing device ads the product to the water.
Hope to hear from you soon.
Published by Gino Quackels, Owner
Hi. Justin.
Trust you have picked up the basics to deal with pathogens. Toxins. H2S odour. and create bio remediation etc..
Its a wide range of remedies.. starting from physical micro nano carbon UV filteration then chemical additions like hypochlorates and softenrs etc.. Finally micto bio remediatn archaea usage .. All the above will give more than the desired effect..One has to evaluate is how costly is it ..
W wshs ..Prof Ajit Seshadri. Vels U. Chennai INDIA ..
Published by Ajit Seshadri Seshadri, Er.
Hi justin
What's your use case scenario? How many kld or mld do you need?
Published by Dennis McMahon, Green Business JV Marketing Sdn Bhd - CEO
It is simple. Nothing is perfect but the closest you can get to that is ozone, or UV but they several have other problems i.e., substantial pretreatment requirements, no disinfectant residual, and they are expensive and difficult to operate, so they are not accessible for many water systems.. Realistically, more than 100 years of experience demonstrate that, chlorine is probably the best all around disinfectant, except for cryptosporidium. However, that is managed by filtration. And chlorine is acccessible, cost effective, and easy to use for just about every water system.
Where are you getting these questions? Are you writing a book or teaching a class?
Published by Joseph Cotruvo, President at Joseph Cotruvo & Associates, Water , Environment and Public Health
I apologize for answering your question with pure scientific facts. But there are no 100% effective disinfectants. You will find many opinions of which product or company makes the best of ??? Mainly because all life forms exist within their own parameters. In this case you are focused on their ph. response to the chemical. Adding more does not increase your %.
The only way to eliminate 100% of pathogens and 100% of all toxins is with microbial intervention. Specifically the RNA microbial group. DNA groups work partially but do not have the proper genetic code to reduce organic compounds into their elemental state. The species name is Archaea. The biological process is called Bioremediation. I do understand that chlorine will no longer be required and the cost savings is tremendous. On the positive side 100% of the recycled waste water will be potable and easily be part of a closed system. No more water shortages anywhere in the world.
Published by Guy McGowen, President/CEO/Chief Science Officer
The information you have requested was done and is currently part of the Dr Carl H. Oppenheimer, (worlds leading microbiologist until his death in 2007.) Estate. The actual data for public consumption is located at The University of Texas in Austin, TX. The old style waste treatment facilities would not be cost effective to rebuild to meet a non chemical protocol. The centralized NEW units are very cost effective. This is classified as extreme cutting edge technology. When you call or visit the UT library they will ask to see your PhD. The basic technology is rooted in quantum mechanics and not easily understood. But the performance pics and reports do make it understandable. Thank you for your question. Information is always free. The world is too degraded for one person to clean it up regardless of how advanced the technology.
Published by Guy McGowen, President/CEO/Chief Science Officer
Do you have performance data in operating medium and large systems?
Published by Joseph Cotruvo, President at Joseph Cotruvo & Associates, Water , Environment and Public Health
We can supply Plasma reactor to remove the most of heavy metals, arsenic, polluted organics
odor (H2S) and disinfect all bacteris from 30T/D to 7000 T/D.. perfectly without chemicals ..and drink after active carbon filter .. or some process .. very cheap and very small maintenance cost
Catalog : http://www.bbnworld.net/water/awp.pdf Price : ask bbn@bbnworld.com Frank Choi
Published by Frank Choi, CEO at BBN World Company Limited
According to my knowledge, till now, I would propose Chlorine Dioxide which is more effective than the widely used Chlorine on elimination of pathogens does not react with organics, so it's use does not produce chloro-organics (-methane, - Ethan, etc.), is not consumed by organics retaining the full activity on bacteria attacks, and has many other secondary advantages which can be found in literature.
The disadvantages of ClO2 is the higher cost comparing to Chlorine, and the need to be produced on site of application with a strictly adjusted dosing system and reactor. Reagent 's misuse can react explosive.
Published by Apostolos Kavadias, IDRO - APOSTOLOS KAVADIAS
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Chlorine dioxide is not a practical solution for killing Cryptosporidium. To produce a 2 log reduction of oocysts 553 ppm minutes has to be achieved i.e. at 1 ppm of ClO2 the contact time to produce the kill is 553 minutes. If 0.5 ppm then 1106 minutes is required and this increases the colder the water is. You are also limited by the combined level of ClO2 chlorate and chlorite of 0.5 ppm.
Published by Don Sharpe
There is really only one that is both effective and easy to apply. That is chlorine. This can be as gas or hypochlorite addition. It does require effective pre-treatment to make the water suitable for disinfection depending on the raw water. Also a useful oxidant to remove iron and manganese. Needs a contact time with a free chlorine residual at the end, which may then be converted to chloramine to last longer in distribution. Very widely used. The only exception in pathogens would be oocysts such as Giardia and Cryptosporidium for which the effective treatment would be UV to render non infective or membrane filtration to remove.
Published by Steve Oxtoby, Process Engineer
Chlorination is usually a safe bet for neutralizing bacterial pathogens. For parasites, sand filtration is adequate. Here is an interesting link (http://hwt.co.za/potable-water-treatment/disinfection/).
Reliability is always key. This implies readily available stocks and if need be, suitably trained operator staff. Our operations in RSA often make use of stabilized chlorine pills. They last for a while and are easy to administer.
Disinfection is very site specific.
Published by Andrew Hulsman, Process Engineer at Andrew Hulsman
Ozone , is an effective disinfection .
Published by Kevin Khan MTO Eng, PO Eng , TTI, Licensed Power Operations Engineer 1st Class , Licensed Technical Instructor ;
chlorination but there are different chemicals for that. Some may have a long residual time and others not. some sand filters with some plant leaves may be OK. However, It really depends on what are you going to do with the water afterward.
Published by Farida El-Dars, Professor of Environmental Analytical Chemsitry
A well design ozone treatment system is your best solution. Yet, I need a water analysis to be absolutely sure
Published by Armand Paré, PDG - CEO SkySep Gaz
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Which water treatment disinfectant chemical disinfects all types pathogens in unsafe water? The water treatment chemical must not leave a harmful residual and should not take the treated water off WHO guideline parameters for safe drinking water.
Regards
hlorinationPublished by Paolo Broglio, Ph.D in Applied Biology ( Biological Wastewater Treatments ) , M.Sc. in Environmental Science
The cheapest is breakpoint chlorination. However, UV with PAA is probably the best approach. IMHO. Sean Roop
Published by Sean Roop, Industrial and Engineering Consultants, LLC - Senior Water and Process Consultant