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

• Published in: Water science & technology. Water supply Vol. 23; no. 10; pp. 4031 - 4046
• Main Authors: Zheng, Guopeng, Wang, Lida, Sun, Wen, Yang, Zhengqing, Bao, Xuewei, Hao, Anfeng, Deng, Haitao, Li, Hejin, Liu, Guichang
• Format: Journal Article
• Language: English
• Published: IWA Publishing 01.10.2023
• Subjects: circulating water; electrolysis inducing; scaling tendency; water stability evaluation index
• ISSN: 1606-9749; 1607-0798
• DOI: 10.2166/ws.2023.243

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.