How to Choose the Right Water Treatment Chemicals for High-COD Wastewater?
Chemical Oxygen Demand (COD) is a key indicator of organic pollution in wastewater. The higher the COD, the more organic pollutants are present — and the more challenging the treatment becomes. Industries like printing and dyeing, pharmaceuticals, paper making, food processing, electroplating, and chemicals all face high-COD discharge issues. Relying on physical or biological methods […]
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