Tag: COD

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What are the physical treatment methods for pharmaceutical wastewater?

Based on the characteristics of pharmaceutical wastewater, physicochemical treatment is required as a pretreatment or post-treatment step in its treatment process. Currently used physicochemical treatment methods mainly include coagulation, flotation, adsorption, ammonia stripping, electrolysis, ion exchange, and membrane separation. (1) Flotation Method: Flotation methods typically include various forms such as

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What is COD?

COD, or chemical oxygen demand, is an important indicator for measuring the degree of pollution of reducing substances in water. High COD wastewater, or wastewater with high chemical oxygen demand, usually means that the wastewater contains a large amount of organic matter. As its content increases, the oxygen deficiency in