Wastewater characterization
Design begins with flow, COD, BOD, TSS, pH, oil, colour, temperature and site-specific contaminants. Sampling quality matters as much as the laboratory result.
ETP Plant Engineering Guide
Engineering reference for industrial ETP design, wastewater characterization, biological treatment, clarification and troubleshooting.
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Process selection
Equalization, coagulation, biological treatment, clarification, filtration and sludge handling are selected around the wastewater load and required treated-water quality.
Chemical control
Jar testing and operating data should determine coagulant and polymer selection; chemical dosing is not a substitute for correct hydraulics and biological balance.
Troubleshooting
Track DO, MLSS, SVI, sludge blanket, pH and load changes before changing multiple process variables at once.