Conference Agenda
Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).
Please note that all times are shown in the time zone of the conference. The current conference time is: 24th Aug 2026, 05:33:02am America, Santiago
|
Daily Overview |
| Session | |
|
24B: Energy & Water Virtual location: VIRTUAL: Agora Meetings | |
    | |
2:16pm - 2:24pm
Low-Cost RGB-LED photometric device for real-time dissolved oxygen and turbidity monitoring in wastewater 1: Universidad Nacional del Callao - (PE), Perú; 2: Universidad Nacional Mayor de San Marcos - (PE) This research presents the design, implementation and experimental validation of a low-cost photometric device for real-time monitoring of dissolved oxygen concentration and turbidity in wastewater. The system integrates an RGB-LED illumination module with an LDR GL5528 sensor and a PIC18F4550 microcontroller. A total of 60 experimental measurements demonstrate dissolved oxygen values of 0.0052±0.0008 mg/L (Sample A, n=30) and 0.0058±0.0007 mg/L (Sample B, n=30) with average errors below 10%. The calibration curve (n=60 samples) yielded R² = 0.9847, validating the system's accuracy. | |