Countronics pH controllers, ORP meters, conductivity controllers, and TDS instruments are used in effluent treatment plants (ETP) and sewage treatment plants (STP) across India — for continuous parameter monitoring, automatic dosing control, and pollution control board compliance.
Industrial and municipal effluent must be treated to meet discharge standards set by CPCB (Central Pollution Control Board) and state pollution control boards before release into water bodies or municipal drains. Non-compliance attracts legal penalties, closure orders, and environmental liability. The key parameters monitored at every ETP and STP are pH, ORP (for disinfection), conductivity, and TDS.
Manual grab sampling and laboratory analysis — where a sample is collected, sent to a lab, and results returned hours or days later — is insufficient for real-time process control. Continuous online instruments provide real-time values and can automatically trigger corrective dosing the moment a parameter deviates.
Industrial effluent from electroplating, textiles, chemicals, food processing, and pharmaceuticals can be highly acidic or alkaline. Neutralisation to pH 6.5–8.5 before discharge is mandatory under CPCB norms. The 112pH dual-limit controller automates this neutralisation process by activating acid or alkali dosing pumps automatically.
In STPs, treated water must be disinfected before discharge. ORP measurement confirms that the disinfectant (chlorine, ozone) is present at effective levels — it is a more reliable indicator of disinfection than chlorine dose alone.
Effluent must be neutralised to pH 6.5–8.5 as per CPCB norms before discharge. The 112pH dual-limit controller automates acid or alkali dosing to maintain pH within the permissible range continuously, eliminating manual monitoring gaps.
CPCB standards specify pH 6.5 to 8.5 for effluent discharged to surface water. The 112pH controller can be set to maintain pH automatically within this range with relay outputs for dosing control.
Countronics ORP controllers monitor and control disinfectant levels in STP systems. ORP indicates how effectively chlorine or ozone is working. The controller activates or stops dosing automatically based on set ORP limits.
Yes. TDS and conductivity are key parameters in discharge compliance. The 160-COND and 160-TDS controllers monitor and control these automatically with relay outputs for treatment system activation.
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