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lime-soda process [1 record]

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Record 1 1988-01-07

English

Subject field(s)
  • Wastewater Treatment
DEF

[A process where] sodium carbonate is treated with calcium hydroxide to create calcium carbonate and sodium hydroxide. The precipitated calcium carbonate and the NaOH in solution are then fed to "thickeners" where a 12% caustic soda solution is obtained accompanied by a calcium carbonate cake. The cake is then burned for reuse in the process. Air pollution results in this process from lime dust, kiln gases, etc. These can be controlled by scrubbers.

French

Domaine(s)
  • Traitement des eaux usées
OBS

Terme utilisé dans le domaine du traitement des eaux.

Spanish

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