1. Foam multi environmental protection agency test is not up to standard, can not be discharged directly, slow down the process.
2. Too much foam spills from the surface, causing serious pollution of the external environment.
3. Too much, too ugly. There is too much foam during aeration or oxygen supply in biological water treatment, which affects the progress of water treatment or overflow, and affects the active mud and bacteria.
4. Excessive circulating water foam affects the secondary utilization, affects the production schedule, and more seriously directly affects the products produced.
5. The defoaming effect of the defoaming agent is not good and the defoaming is not complete.
6. The anti-foaming agent has a poor foaming effect, resulting in the secondary generation of foam.
7. Added defoamer, worried about PH, iron content, total alkalinity, total phosphorus, total calcium and magnesium and other indicators exceeded the standard, resulting in secondary pollution.
8. The defoamer is harmful to biological bacteria, has an impact on the MBR system, destroys the percolation membrane, and worries that it will block the ultrafiltration membrane.
9. Too much foam accumulation affects space utilization.
10. Worry about the cost is too high and the operation is not convenient.
