Causes of foam in construction wastewater.The main causes of foam in construction wastewater, such as surfactant residue and microbial activity, were analyzed.

Influence of foam on treatment system.Foam accumulation leads to blockage of processing equipment, reduction of processing capacity and increase of energy consumption.

Analysis of specific defoamer demand.Select suitable defoamers based on the properties of the wastewater, such as pH value, temperature, and composition.

Practice of efficient defoaming strategy.Explore various defoaming strategies such as pre-processing, stage addition, and mixed use.

Share successful cases, evaluate the defoaming effect and its impact on subsequent treatment processes.