Electrolysis-induced hardness variation for quantitatively assessing the scaling tendency of circulating water

Abstract

The scaling problem exists universally in circulating water systems. Efficient and accurate assessment of scaling tendency is a prerequisite for solving the problem. In this work, it proposes electrolysis to induce hardness variation, which connects with the water stability evaluation index for quantitatively assessing the scaling tendency of water. The quantitative assessment is further realized on the basis of qualitative assessment. Then, the dynamic simulation experiments of circulating water are carried out to provide support for the electrolysis-induced hardness variation which clarifies the criteria that can meet the actual water requirements. This work can achieve an efficient and accurate quantitative assessment of the scaling tendency, which is of great significance for solving the scaling problem of circulating water systems. HIGHLIGHTS An electrolysis method is proposed to induce hardness variation of water.; Relationship is built between hardness variation and evaluation index.; Hardness variation is used to assess the scaling tendency quantitatively.; Dynamic simulation experiments support the availability of assessed results.;

Keywords

• circulating water
• electrolysis inducing
• scaling tendency
• water stability evaluation index