Ammonia Removal from Water

I am interested in working on an adsorbent/coagulant which can be used in removing ammonia from water along with suspended impurities.

Do you have any idea if such a polymer/chemical exists?

Taxonomy

• Coagulants
• Purification
• Polymeric Membranes
• Absorbents
• Polymers & Plastics
• Water Purification

12 Answers

1. Ammonia can be removed with filtration by absorption or biological nitrification (conversion of ammonia to nitrate by oxidation)

2. Dear Lokesch!

   We at AEE-INTEC use Membrane Distillation for ammonia removal: http://aee-intec.at/index.php?seitenName=projekteDetail&projekteId=177&lang=en 

    This also removes small particles and other large molecules. We prefer this to the use of other chemicals, since it is a mechanical process at low temperatures (powered by solar heat or waste heat).

   For detail contact c.brunner@aee.at 

    

   Greetings

    

3.  

   Dear Lokesh

   related previous question on following link...

   https://thewaternetwork.com/question-0-y/ammonia-removal-from-river-water-L7RztA6cVAiKsBGnaHB0og

    

   There are  following method to remove ammonia

   1.Air stripping at elevated pH(9.5-10.5)

   2. Biological Treatment

   3. Adsorption by Zeolite(Ion Exchange)

   4. Use chemical like H2SO4 and then neutralise...

   5. Electrolysis

   5. Membrane technology

   Regards,

   Prem Baboo

4. I used zeolite adsorption, much cheaper than CO2 (dry ice). Baker Corp makes units. My application was mining water in pit ammoniated by blasts.

5. Hi Lokesh,

   Please check out SaferEx - Multiaction Water Purifier in the link below. It oxidizes ammonia and removes it from water, coagulates impurities, sediments them, disinfects and clarifies the water removing odour, taste and colour from the water in a single application and unit process. It has been confirmed to remove Nitrates and Fluoride from river water.

   Read more about SaferEx: https://drive.google.com/file/d/0B5vq4wO9sNRoRjJTUU9JVjRjQVU/view?usp=sharing

   Regards

   Justin

6. If I  were you I'd try  some  sort  of  ballasted high rate clarification using a  coagulant  like ferric chloride and clinoptilolite( sp?-an ammonia  removing  zeolite)of  a  grade  that  could be  separated, re-charged  &  returned.

7. Natural zeolite has high exchange capacity by ammonia. You can use it as filter media.

8. Hi Lokesh, I would like you to send me an email concerning the issue you have but also in connection with India and linking up existing connections/solutions. dave@makroorganics.com 

   1 Comment

   1. Dear Dave, actually I need this idea to for a research purpose/ plan. I hope you will suggest me a proposal.

      Regards

9. If you ever find such a chemistry, then you can retire.  You need to either remove by membranes, ion exchange or by microbiological degradation.  Sorry to be so blunt, but we have all thought of it at one time or another.  It would be nice though, huh?  Sean

   1 Comment

   1. I did forget about the below methodologies, but you get the point, there is no chemical made that is going to remove ammonia from water.  It is way to hydrophilic and has other characteristics that make it impossible to remove via chemical coagulation/flocculation.  Electrocoagulation is also limited depending on the make-up of the water.

10. Electrolysis is a more effective way to remove the ammonia. see the following http://key-solutions-inc.com/index.html

11. Rather than using a chemical, electrolysis methods are superior and easier to implement in removing ammonia. Electrocoagulation would also be of benefit depending on the constituents.

12. Ammonia is highly soluble in water, so cannot be removed with coagulants, which are only useful for removing suspended ​impurities.

    Adsorbents do exist that can remove ammonia but can generate a new waste during re-generation, which has to be disposed of. What concentration of ammonia do you need to remove? If it is not high enough, this option may not be the most cost-effective.

    An alternative is to use a biological process (nitrification), to oxidise the ammonia to nitrate. This is typically used to "remove" ammonia from raw or wastewater where the concentration is "low" (typically up to 30 mg/L in secondary wastewater effluent).

    Depending on the nature of the suspended ​impurities, they may also be removed in a biological process, by the filter-feeding activities of e.g. protozoa and rotifers.

    If the ammonia concentration is "high" (100s mg/L), an alternative biological process (anammox) might be the most cost-effective, unless the ammonia can be recovered for re-use by e.g. stripping.