Yellow-like Color of the RO Permeate Water

Taxonomy

• Treatment
• Treatment Methods
• RO Systems
• Filtration
• Decontamination
• Reverse Osmosis
• Technology
• Membranes
• Contaminant Removal

14 Answers

1. It must be the corrosion result. but to be sure, you can measure the Fe2+ or Fe 3+ ions of water. 

2. RO is not for any type of water.

   Proper process design  - consider input and output water quality, available resources and environmental regulations

   Operate as per design to get the required water quality. 

3. Hello Ahmadi,

   What is the organic content of your feed water?  RO's do not reject organics as well as ionized salts.  

    

4. Hello Ahmadi,

   What is the organic content of your feed water?  RO's do not reject organics as well as ionized salts.  

    

5. Hello Ahmadi,

   What is the organic content of your feed water?  RO's do not reject organics as well as ionized salts.  

    

6. Hello Ahmadi,

   What is the organic content of your feed water?  RO's do not reject organics as well as ionized salts.  

    

7. Hello Ahmadi,

   What is the organic content of your feed water?  RO's do not reject organics as well as ionized salts.  

    

8. I start from the principle that, for you to give an opinion of which is the best process to treat a water, a physical-chemical analysis must be done that allows me to generate the best conceptualization of how to proceed.Now everyone, clings to the membranes, whether ultrafiltration, osmosis, among others.For the case study pH ...?

9. Good Morning Mr. Arsalan,

   Please advise source water analysis, pretreatment, product water TDS, membrane type, type of tanking / storage.

   Warmest regards,

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10. Hi Ahmadi

    Is this a sea water system?

    Luis

     

    1 Comment

    1. Hello

       Yes.

11. RO permeate water is slightly acidic , yellow color could be the result of iron or other metallic salts. 

    1 Comment

    1. Thanks.

12. Check the source of Fe.

    Do you have mettalic or non mettalic piping?

    1 Comment

    1. OK.

       The total piping in the pre-treatment section and the permeate water RO section is UPVC.

       
       And the total piping  in the high pressure section is super duplex stainless steel.

13. Or silica?

14. Probably you have a great concentration of Fe

    1 Comment

    1. Thanks