Urgent! Urgent! Urgent! ! ! Does wastewater containing a high amount of sodium chloride (12%) still need to be heated using steam coils?
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Does wastewater containing a high amount of sodium chloride (12%) still need to be heated using steam coils? The equipment operates at atmospheric pressure; what material should be used for the equipment and the steam coils? The wastewater may be acidic or alkaline.
At the very least, 304 stainless steel pipes should be used; if chloride ions are present, titanium steel should be considered.
Titanium alloys are too expensive. Is there a version with a steel lining? Such as graphite-lined steel, rubber-lined steel, enamel-lined steel, etc.? The equipment is high-quality; what material should be used for the pipe fittings and coils? And how can we avoid scorching the rubber lining layer with the steam coil?
Sir, titanium alloy is too expensive. Is there any option with a steel lining? Such as graphite-lined steel, rubber-lined steel, enamel-lined steel, etc.? The equipment is high-quality; what material should be used for the pipe fittings and coils? And how can we avoid scorching the rubber lining layer with the steam coil?
It’s not a material issue. If used in this way, the equipment will soon become clogged due to scaling. High-salt wastewater can only be treated using falling-film evaporators.
This post was last edited by *nht1 on 2015-12-27 13:58: Enameled 304 stainless steel
I think forced circulation is more suitable; it works well for caustic soda evaporation using the diaphragm method