BOD & COD Reduction

Biological oxygen demand (BOD) is a measure of the amount of oxygen that is consumed by bacteria during the decomposition of organic matter.  Having a safe BOD level in wastewater is essential to producing quality effluent. If the BOD level is too high then the water could be at risk for further contamination, interfering with the treatment process and affecting the end product.

BOD & COD Reduction

There are several factors that can contribute to high BOD levels: nitrates and phosphates present in the wastewater, water temperature, and others. Each factor affects the plant life in the water, such as algae, and in turn also has an effect on the organisms that help decompose water contaminants in the wastewater treatment process. The best quality wastewater treatment will occur in an environment that supports the life of these bacteria while maintaining a controlled population of them so as to not encourage rapid bacterial decomposition, which would create  higher BOD levels.

Similar to BOD is chemical oxygen demand (COD). COD measures the amount of oxygen that is consumed by the water in the decomposition and oxidation processes, specifically the decomposition of organic matter and oxidation of inorganic matter, or chemicals. COD is an application that is usually used in industrial settings; however, municipalities treating wastewater with chemical pollutants may use it.

BOD & COD Reduction Technologies for Your Wastewater Applications:
Odor/Corrosion Control Chemical Products
Activated Carbon Adsorption
Sequencing Batch Reactors (SBR)
Field Erected Biological Wastewater Treatment Plants

BOD & COD Reduction Video

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BOD & COD Reduction Case Study

Pre-treatment Solution from Davco Products Removes BOD, Solids, Fats, Oil, & Grease from Ken's Foods Wastewater Facility

Ken's Foods, famous for its retail Ken's Steak House Salad Dressings as well as other grocery and food service products, opened up a production and packaging plant in McDonough, Georgia in 1996.  The McDonough plant needed a long-term effluent processing system to meet the plant's immediate need, as well as groundwork for an envisioned expansion in three to five years. Pretreatment was needed to prepare the plant for BOD reduction, as well as the reduction of  fats, oil, & grease, typical with food processing plants.

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BOD Case Study