When we talk about water quality, one term that frequently comes up is biological oxygen demand, often abbreviated as BOD.<\/p>\n\n\n\n
But what does biological oxygen demand mean, and why is it important?<\/p>\n\n\n\n
Biochemical oxygen demand is the amount of oxygen consumed by bacteria and other microorganisms while they decompose organic matter under aerobic conditions.<\/p>\n\n\n\n
BOD reflects how much oxygen is consumed by bacteria and other microorganisms as they decompose organic matter under aerobic (oxygen-present) conditions.<\/p>\n\n\n\n
The higher the BOD, the more polluted the water is with organic waste, typically expressed in mg\/L (milligrams of oxygen per liter of water). [source]<\/a><\/p>\n\n\n\n When you look at water in a lake the one thing you don’t see is oxygen. In a way, we think that water is the opposite of air, but the common lake or stream does contain small amounts of oxygen, in the form of dissolved oxygen<\/a>. Although the amount of dissolved oxygen is small, up to about ten molecules of oxygen per million of water, it is a crucial component of natural water bodies; the presence of a sufficient concentration of dissolved oxygen is critical to maintaining the aquatic life and aesthetic quality of streams and lakes.<\/p>\n\n\n\n Certain environmental stresses (hot summer temperatures) and other human-induced factors (introduction of excess fertilizers to a water body) can lessen the amount of dissolved oxygen in a water body, resulting in stresses on the local aquatic life. One water analysis that is utilized in order to better understand the effect of bacteria and other microorganisms on the amount of oxygen they consume as they decompose organic matter under aerobic (oxygen is present) is the measure of biochemical oxygen demand (BOD).<\/p>\n\n\n\n BOD is an essential metric in wastewater treatment processes to assess how effective the treatment process is. If BOD levels are too high they indicate insufficient treatment, and so adjustments or improvements in the treatment process must be made. On the other hand, if BOD levels are low, it signifies successful treatment that organic pollutants have been removed, preserving the water quality for safeguarding public health and maintaining environmental sustainability. <\/p>\n\n\n\n If a BOD test is taken in a clean and therefore non-polluted river, the BOD reading should be <1 PPM, while if the BOD is measured in sewage, then it typically reads greater than 200 PPM, often reaching up to 600 PPM. [source]<\/a><\/p>\n\n\n\n Industries that need to discharge wastewater into municipal sewers or waterways must follow strict regulations on the levels of BOD in the water to protect our environment and the people using the water. Before discharging wastewater, the solid materials (organic and inorganic materials) must be reduced by treatment otherwise the BOD will increase when being discharged.<\/p>\n\n\n\n ECOKlien provides healthcare facilities and the industry with advanced hybrid treatment systems that are tuned to follow all regulations. The system comes equipped with sensors to ensure seamless processing of biomedical effluents without any human interference. Not only are we meeting BOD standards, but also ensuring safe handling of toxic substances.<\/p>\n\n\n\nWhat exactly is BOD in simple terms?<\/h4>\n\n\n\n
How does BOD affect wastewater, and wastewater treatment?<\/h4>\n\n\n\n
How does ECOKlien tackle BOD balance?<\/h4>\n\n\n\n