f removal system.ppt - isw ind removal system.pdf · 2014. 4. 21. · fluoride may cause bone...
TRANSCRIPT
F Removal from Water and WasteF Removal from Water and Wastewater using Purolite SST 60
Diseases caused by F in Potable water
1. The fluoride goes to everyone regardless of age, health or vulnerability2. Fluoride may damage the brain3. Fluoride may lower IQ.4. Fluoride may cause non-IQ neurotoxic effects5. Fluoride affects the pineal gland.6. Fluoride affects thyroid function.7. Fluoride causes arthritic symptoms
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7. Fluoride causes arthritic symptoms8. Fluoride damages bone9. Fluoride may increase hip fractures in the elderly.10. People with impaired kidney function are particularly vulnerable to bone
damage11. Fluoride may cause bone cancer (osteosarcoma)12. Fluoride may cause reproductive problems.
INDIAN STANDARD SPECIFICATIONS FOR DRINKING WATER IS: 10500
Fluoride 0.6 to 1.2
If the limit is below 0.6 water should be rejected, Max. If the limit is below 0.6 water should be rejected, Max. Limit is extended to 1.5
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Principle of SST 60 for removing the F from water and waste waterfrom water and waste water
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SST 60 Regeneration/ Conditioning Process
SST 60 (in Na Form) + Al2SO4 à SST 60 (in Al form)
SST 60
Na SO4
SO4
SO4Al2
SST 60Al2
SO4
SO4
SO4
SST 60 (in Na Form) + Al2SO4 à SST 60 (in Al form)
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Removal of F using Purolite SST 60
Al2 SO4
SO4
Al2
F
F
SST 60 (in Al form) + F (in water) SST 60 –Al2F3
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SO4F
Regeneration of SST 60
Al2 F
F
Al2
SO4
SO4Al2(SO4)3Al2(SO4)3
SST 60 (in Al form) + Al2(SO4)3 SST 60 (in Al form)
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FSO4
Designing Criteria
Design BV = 3-10 BV/hrMaximum Bed Depth = 1.5 mMinimum Bed Depth = 1.2 mDesign velocity = 8-12 m/hrResin capacity (as F) = 1-4 gm per ltResin capacity (as F) = 1-4 gm per lt
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Regeneration
Regeneration Chemical = CaCl2 / Al2SO4
Regeneration Level( 100 %) = 150 gpl
Percentage of Regenerating Percentage of Regenerating Chemical in Water( F Free) = 10 % (Al2SO4)
25 % (CaCl2 )REGENERATION MODE = CRREGENERANT TEMPERATURE = 30 Deg C
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Advantage of SST 60 resin
1. SST 60 is NSF/ FDA/ Halal approved resin2. SST 60(in Al form) is highly F selective resin.3. Purolite SST 60 (in Al form) does not required any pre and
post pH correction.4. Purolite SST 60 (in Al form) can operate in wide range of pH4. Purolite SST 60 (in Al form) can operate in wide range of pH5. Purolite SST 60 (in Al form ) can operate in wide range of
Temperature ( max 120 deg C)6. Purolite SST 60 (in Al form) is having higher bead strength
so there are less chances of contanimination in Potable Order.
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SST60
Why SST60 is so Efficient
• High regeneration efficiency
• Faster Kinetics
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• Better elution of contaminants
• Reduced Rinse water
•Low regeneration level and conc.
Thank you.
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Thank you.