How does zeolite regeneration ammonia removal occur?
- Este tópico contém 1 resposta, 2 utilizadores e foi actualizado pela última vez há 7 meses, 3 semanas por Sandra Green.
Answers
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Setembro 14, 2024 às 11:37 am by Sandra Green
Zeolite regeneration for ammonia (NH4⁺) removal occurs through a chemical ion-exchange process:
Backwashing: First, backwash the zeolite bed with clean water to remove physical debris or particulates.
Brine Solution: Flush the zeolite with a concentrated sodium chloride (NaCl) brine solution, typically 5%-10%. The sodium ions from the solution displace the ammonium ions (NH4⁺) adsorbed on the zeolite.
Rinse: After the brine treatment, rinse the zeolite with fresh water to remove excess salt and displaced ammonium ions.
Recharging: The zeolite is now ready to continue adsorbing ammonium ions from the water, having restored its ion-exchange capacity.
This regeneration cycle can be repeated multiple times, ensuring the zeolite continues to function in ammonia removal applications.
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