Performance Comparison of a Self-Cleaning and a Conventional pH Electrode in Wastewater Process Monitoring |
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| Abraham de Guzman, Elyson Keith Encarnacion |
- Abstract:
- Accurate pH measurement is vital in wastewater treatment for effective process control and regulatory compliance. This study compares a self-cleaning pH sensor (HORIBA 6122 series) with a conventional glass electrode, installed in parallel at a wastewater treatment facility in Metro Manila, Philippines. Over a 97-day period, 2,324 paired readings were recorded. Statistical analysis revealed a significant difference (t(2323) = 56.88, p > 0.05) in mean values (HORIBA = 6.93, conventional = 6.12). The HORIBA sensor exhibited lower variability (HORIBA = 0.2335, conventional = 0.6461) through time, indicating better stability. These results align with the goals of Process Analytical Technology and support the deployment of self-cleaning sensors for real-time wastewater treatment monitoring.
- Download:
- IMEKO-TC8-11-24-2025-042.pdf
- DOI:
- 10.21014/tc24-2025.042
- Event details
- IMEKO TC:
- TC24
- Event name:
- IMEKO TC8, TC11 and TC24 Conference
- Title:
Joint conference of the TCs ‘Traceability in Metrology’ (IMEKO TC8), ‘Measurement in Testing, Inspection and Certification’ (IMEKO TC11), and ‘Chemical Measurements’ (IMEKO TC24).
- Place:
- Torino, ITALY
- Time:
- 14 September 2025 - 17 September 2025