Ion Exchange Equipment: Identification & Root Cause Troubleshooting of Deteriorated Effluent Quality

In daily operation and maintenance of ion exchange systems, substandard effluent indicators are a common fault. Many maintenance personnel tend to carry out inspections only after the water quality fully exceeds the standard. In fact, deteriorated water quality is a symptom rather than the fault itself. Early detection of parameter changes can greatly reduce losses caused by shutdown.

1. Rising conductivity with decreased pH generally points to cation leakage;
2. Premature silica breakout accompanied by lower pH mostly indicates organic fouling;
3. Sharp conductivity spike after system restart suggests regenerant intrusion.

1. Resin Issues: Oxidative degradation, resin particle breakage, pore clogging or organic fouling;
2. Operation Issues: Insufficient regeneration, internal regenerant leakage, excessive resin exhaustion;
3. Equipment Issues: Damaged water distributor, broken intermediate drain, disordered under-bed layer.

Troubleshooting recommendation: First verify online meter data and confirm parameter trends, then distinguish whether the fault comes from resin, operation or equipment structure. Avoid replacing resin blindly to prevent unnecessary cost.