Remove calcium but not magnesium
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The calcium content in the mixed wastewater is approximately 1500 mg/L, while the magnesium level is roughly twice that of calcium. The anion present is sulfate. What are some effective methods for removing calcium ions while retaining magnesium ions?
It’s difficult, as calcium and magnesium have similar properties, just like in the separation of sodium and potassium ions
This requires calculation using the actual data of the sample; it’s not something that can be solved just by thinking about it. Knowing only the calcium ion concentration is not enough; the concentration values of all other coexisting ions must also be provided accurately in order to obtain calculable results. If you need me to calculate and find possible solutions, a fee will be charged. Payment can be made by bank transfer or WeChat Red Packet; the specific amount can be discussed, and payment must be made before the results are provided.
Filter it after heating and purifying; I don’t know much about chemistry, so please look up relevant chemical knowledge