How to cool wastewater containing 5% sulfuric acid
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There is wastewater containing sulfuric acid at a temperature of 60°C, with a volume concentration of 5% sulfuric acid. It needs to be cooled down to 35°C. What are some good methods for this?
Wastewater with a sulfuric acid concentration of 5% by volume is highly corrosive; conventional 304 and 316 materials are not suitable for use in such applications. It is recommended to use 316L or ceramic equipment for cooling, and heat exchange can be achieved either through coiled tubes or jackets.
For cooling, use cold water; carbon steel pipes and fluorinated-lined valves can be used at this temperature
Use dry screw pumps in production; this way, there is no need for wastewater treatment, and they are also corrosion-resistant
If the water volume is not large, a double-tube design can be considered； Acid flows inside the tube, while cooling water flows through the jacket; the material is 316L.
200t/h; circulating water cannot be used, so it seems that chilled water will have to be employed
Can’t it be plate-type? Provincial local areas have high efficiency
Just put it directly into the water-cooled enamel kettle to cool it, and then return it to the enamel tank, isn’t that simple?