english Water Quality Testing & Treatment Assessment
Comprehensive guidelines for evaluating the effectiveness of water treatment processes
Detect Core Water Quality Indicators
The first step to test the treatment effect is to detect key water quality indicators of inlet and outlet water.
- For suspended solids, use filtration methods to collect solid particles from both inlet and outlet samples, then measure their mass to calculate the removal rate—higher removal rates indicate better solid-liquid separation performance.
- For chemical oxygen demand, apply appropriate analytical techniques to compare the concentration of organic matter in inlet and outlet water; a significant reduction means the equipment effectively separates or decomposes organic pollutants.
- For oil-containing wastewater, test the oil content in samples to verify if the equipment captures oil droplets efficiently.
Additionally, if treating wastewater with specific pollutants like ammonia nitrogen or chroma, test these indicators separately to assess targeted treatment capabilities.
Observe Equipment Operation Status
Monitoring the equipment's real-time operation status provides indirect insights into treatment effectiveness.
- Check the bubble generation: uniform, tiny bubbles spread evenly across the flotation tank suggest efficient aeration, which is critical for pollutant capture.
- Observe the scum layer—thick, stable scum with clear separation from water indicates pollutants are being successfully lifted to the surface.
- Assess the outlet water clarity: clear, transparent outlet water usually means most impurities are removed, while turbid water may signal insufficient flotation.
Also, check if the scum discharge system works smoothly, as incomplete scum removal can affect subsequent treatment and skew test results.
Conduct Comparative Verification Tests
Comparative tests help confirm the equipment's actual treatment effect. Use the same batch of wastewater for parallel tests.
Testing methodology:
- One group treated by the integrated air flotation equipment
- Another group left untreated or processed by a standard method
- Compare key indicators like suspended solids concentration, chemical oxygen demand, and water clarity
Obvious differences in favor of the treated group prove the equipment's effectiveness. Additionally, adjust operating parameters and repeat tests to identify the optimal parameter combination, ensuring the equipment maintains stable performance under optimal conditions.
Monitor Long-Term Stability
Long-term monitoring is essential to evaluate sustained treatment effect. Regularly sample inlet and outlet water at fixed intervals, tracking changes in pollutant removal rates over time.
- Stable removal rates indicate reliable long-term performance
- Sudden drops may signal issues like membrane blockage, aeration system failure, or parameter drift
- Record operating data alongside water quality test results to identify correlations
This allows timely adjustments to maintain optimal performance and ensures the equipment meets treatment requirements consistently.
