What are the new processes for treating waste acid (generated during purification) in sulfuric acid production?
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The South China inspection team said that the lime-iron salt treatment method is outdated. Are there any pollution acid treatment processes that require low investment, have low operating costs, and are easy to control?
So far, I haven’t heard of any method that is both cost-effective and highly effective
As long as the emission standards are met, does the inspection center care about what processing techniques you use?
The components in purified dilute acids are complex and sensitive, and there has been no simple method for dealing with them. It’s good enough if the lime-iron salt method can handle it. The key is to reuse the treated reclaimed water; otherwise, the total amount of waste discharged will increase.
OP, it depends on whether you’re willing to invest or not You can contact Jiangxi Copper-Wengfu Company to find out about their methods for treating dilute acid in the purification process. Personally, I think it is at least fairly reliable in the domestic market. Although the equipment investment is a bit high.
OP, could you specify the components of the waste acid as well as its impurities?
The key is to provide clear information such as the concentration of your waste sulfuric acid. For concentrations ranging from 30% to 80%, vacuum concentration can be used to raise them to 90% or higher; for weaker concentrations, substances like sulfuric anhydride can be produced.