Waste sulfuric acid recycling system and method
A regeneration system and sulfuric acid technology, which is applied in the field of waste sulfuric acid recovery and waste sulfuric acid recovery and regeneration system, can solve the problems affecting the removal efficiency of NF membrane metal impurities and the complexity of sulfuric acid components, so as to avoid secondary pollution, low cost and improve removal rate Effect
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[0036] The waste sulfuric acid recycling system of the present invention is such as figure 1 Shown, including: multi-stage sedimentation tank 1, acid-resistant pump I2, plate and frame filter press equipment 3, acid storage tank 4, MF circulation pump 5, MF membrane equipment 6, UF circulation tank 7, bag filter I8, acid-resistant pump II9, UF membrane equipment 10, UF acid storage tank 11, acid distributing equipment I12, oxidation treatment tank 13, NF circulation tank 14, bag filter II15, NF circulation pump 16, acid-resistant NF membrane equipment 17, and finished acid storage tank 18 , Industrial sulfuric acid tank 19, acid distributing equipment II20, distillation equipment 21, sedimentation equipment 22, heat exchanger 23 and reagent sulfuric acid storage tank 24;
[0037] The multi-stage sedimentation tank 1 is connected to the acid-resistant pump I2, the plate-and-frame filter press 3, the acid storage tank 4, the MF circulation pump 5, and the MF membrane equipment 6 th...
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