ETA Central Técnica



A practical technical hub for learning, diagnosing, calculating, and simulating conventional drinking water treatment operations.
ETA Central Técnica is a Portuguese-language reference and operational support site for conventional drinking water treatment plants. It presents the complete treatment sequence and dedicated modules for coagulation, flocculation, sedimentation, filtration, disinfection, polymers, pH and alkalinity, temperature, sludge, chemical safety, and laboratory control. Operators, technicians, chemists, and engineers can investigate observed plant symptoms, combine optional operating measurements with a selected issue, review probable causes and corrective actions, calculate chemical doses and process rates, compare scenarios, and run simplified Jar Test and sand-filter backwash simulations. The site clearly identifies calculations and simulations as decision-support material that does not replace plant design, bench testing, current regulations, or the responsible technical professional.
Highlights
Smart diagnosis
Links symptoms to actions
Ten calculators
Live operational results
Jar Test lab
Animated dose comparison
Technical library
Eleven process modules
Backwash model
Visual filter simulation
How to Use
Review the treatment process
Start from the home page or open the complete process view to follow the conventional treatment sequence. Select any technical module to study its fundamentals, operating considerations, diagnostic guidance, and relevant requirements before moving to a tool.
Run an operational diagnosis
Open Smart Diagnosis, select the symptom observed at the plant, and optionally enter measurements such as raw-water pH, alkalinity, temperature, turbidity, color, chemical dose, polymer dose, or chlorine residual. Select Diagnose to receive organized probable causes, verification steps, corrective actions, and parameter-specific observations.
Calculate an operating value
Open Calculators and choose the required formula, such as coagulant, polymer, or chlorine dosage, solution concentration, product consumption, flow conversion, sludge production, filtration rate, or detention time. Enter plant values with the displayed units and review the outputs that update on the same page.
Simulate a Jar Test
Open the Jar Test simulator and adjust raw-water turbidity, color, pH, alkalinity, temperature, and auxiliary polymer with the sliders. Run the test to observe the staged virtual mixing, flocculation, and settling comparison across several doses, then use the result as a learning aid rather than a substitute for a real bench test.
Explore supporting guidance
Use the scenario matrix, filter backwash simulator, FAQ, and page search to connect symptoms with operating conditions and locate supporting explanations. Confirm any practical decision against current regulation, the plant design, product safety documentation, and the responsible technical professional.
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