Biological oxygen demand

Archive for the ‘oxygen demand’ Category

Biological oxygen demand

Friday, January 30th, 2009

Biological oxygen demand is the technique used to measure the concentration of biodegradable organic matter present in the water and other materials. Some of the techniques patented in USPTO are mentioned below. Patent no: 6,114,172 titled ‘Process and device for determining the biological oxygen demand of sewage’ with the abstract: In ...


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