{Reference Type}: Review
{Title}: Review on descaling and anti-scaling technology of heat exchanger in high-salt wastewater thermal desalination.
{Author}: Wu Z;Yan Z;Zhang Q;Zhu Y;Luo M;Zhou D;
{Journal}: Water Sci Technol
{Volume}: 88
{Issue}: 8
{Year}: 2023 Oct
{Factor}: 2.43
{DOI}: 10.2166/wst.2023.325
{Abstract}: Thermal desalination evaporation of high-salt wastewater has been widely used in industry because of the proposed concept of 'zero liquid discharge'. However, due to the high content of Ca2+ and Mg2+ in high-salt wastewater, the heat exchanger, as the main treatment equipment, suffers from serious scaling problems. This review presents descaling and scale inhibition technologies of high-salt wastewater. The advantages and disadvantages of various technologies are summarized and analyzed to provide theoretical support for the research of descaling and anti-scaling of heat exchangers with high-salt wastewater. In future industrial development, the synergistic application of electromagnetic water treatment technology and scale inhibitors can significantly improve the anti-scaling effect, which can reach over 95% stably. Furthermore, the addition of a physical field can also expand the application range of scale inhibitors.