How to utilize smelting acidic waste
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Currently, acidic wastewater is treated as sludge, and the treatment cost is high. Are there any new technologies that can enable the reuse of this acidic wastewater?
You can contact sewage treatment manufacturers; they will have specific solutions
Which industry’s waste acid should be considered? How high is the impurity content? What is the sulfuric acid concentration? Only then can the utilization value of polluted acid be considered comprehensively
Copper smelting waste acid that is intended for reuse; the acid concentration is around 40%. The cost of treating the sludge generated is too high
This concentration has value for recovery. We can cooperate
Found online: A method for recovering copper, zinc, and nickel from sludge containing heavy metals using waste acid from copper smelting, which includes the following steps: (1) Leaching； (2) Purification and impurity removal ； (3) Copper extraction by extraction – copper electrowinning ； (4) Neutralization and iron removal ； (5) Zinc extraction by extraction – Neutralization and purification of the zinc back-extraction solution – Zinc electrowinning ； (6) Nickel extraction – nickel electrowinning ； (7) Alkaline precipitation. This invention utilizes copper smelting waste acid to achieve stepwise recovery of valuable metals such as copper, zinc, and nickel from sludge containing heavy metals; the overall recovery rate reaches 97%, and the wastewater and sludge meet the discharge standards. The products obtained can be directly reused as raw materials for copper products. For reference
Um, may I ask how we can cooperate?
Well, I’ve learned the relevant skills; now my main goal is to reuse the acidic waste in order to achieve zero emissions, with the metal content being brought within acceptable levels
We specialize in the reuse of waste acid from smelting processes, and we have proven project examples available; feel free to contact me.