Petrochemical wastewater contains floating oil, emulsified oil, dissolved oil, and a large amount of refractory organic matter. Its treatment process must combine physical, chemical, and biochemical methods in order to achieve discharge compliance or reuse.

Textile dyeing and printing wastewater is characterized by large volumes, high color intensity, significant pH fluctuations, and the presence of refractory dyes and auxiliaries. The cost of end-of-pipe treatment alone is high, and today, more and more enterprises are adopting deep treatment and reuse processes to recover both water and thermal energy.

The electrophoretic coating, degreasing, and water rinsing processes in automobile coating workshops are highly sensitive to water quality. Elevated calcium and magnesium ion concentrations can lead to coating defects such as craters and particles. Pure water quality directly determines coating quality and anti-corrosion performance.

The heat dissipation load of data center servers is extremely high. The cooling water system is the lifeline that ensures their continuous operation. Poor water quality can lead to condenser scaling, corrosion, and microbial clogging, which in turn severely impacts cooling efficiency and may even cause downtime.