pH / DO Controller is an essential monitoring and control system used in wastewater treatment plants to regulate pH levels and dissolved oxygen (DO) concentration. These two parameters are critical for maintaining stable chemical reactions and efficient biological treatment processes. The pH controller continuously measures the acidity or alkalinity of wastewater and automatically adjusts it by dosing acids or alkalis as required. Maintaining proper pH ensures optimal performance of coagulants, flocculants, and biological microorganisms. The dissolved oxygen (DO) controller monitors oxygen levels in aeration tanks and regulates aeration systems accordingly. Adequate oxygen supply is essential for aerobic bacteria to break down organic pollutants effectively, improving BOD and COD removal. Together, the pH and DO controller ensures process stability, improves treatment efficiency, and helps maintain compliance with environmental discharge standards.
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