The pH value of aluminum wastewater is greater than 1; what amount of lime should be used as a neutralizing agent?

2016-06-03View Original

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The pH value of aluminum wastewater is greater than 1; what amount of lime should be used as a neutralizing agent?

Reply #22016-06-03

It is not possible to calculate the alkali consumption based on such data. It is necessary to determine the total acid value of the sample; relying solely on the pH value is not sufficient, as the pH value represents only the activity of hydrogen ions at a given moment, and not the total acid value. Some polyacids, for example, may not be able to manifest as hydrogen ions due to incomplete ionization.

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