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Biological oxygen demand is a measure e of how much oxygen microbes will use in decomposing organics in the water. It isa measure of how much oxygen is required to diffuse into the water to keep the ecosystem aerobic.
Wiki User
∙ 6y ago
Wiki User
∙ 9y agoEverything requiring oxygen (fish, muscles, etc) will die if O2 content gets too low.
Bacteria and most plants will get along fine.
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What is a biological oxygen demand?
A biological oxygen demand is another term for a biochemical oxygen demand - the amount of oxygen needed by aerobic microorganisms to decompose all the organic matter in a sample of water - used as a measure of pollution.
What is biological oxygen demand?
It determines the amount of dissolved oxygen that is consumed by aerobic biological microorganisms in water. It is measured by the amount of oxygen that is consumed per liter of sample during 5 days of incubation it is in milligrams.
What is Total Oxygen Demand TOD?
The amount the organism within a community, particularly in an aquatic community, demend oxygen. Eutrophication can cause the demand to rise and harm the fish within the aquatic ecosystem.
What is the full form of bod related to water pollution?
Biological Oxygen Demand
What is TOD BOD in water quality measurement?
There are three OD's used Total Oxygen Demand (TOD), Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD) They all measure the amount of oxygen that would be required to consume organic material in the water, BOD is the lowest (usually) as it measures demand from microbes eating easily digested organics (sugars etc), COD measures the demand from all other organics (alcohols etc) measured by digesting the material in strong chemical oxidants, and TOD is the total of the two. Oxygen demand is important to know in waste handling as reducing the oxygen in receiving stream can harm fish and other aquatic life.
What is mean chemical oxygen demand-?
The mean oxygen demand is the test done to indirectly determine the amount of organic compounds present in a water sample.
What are the relationship between cod chemical oxygen demand and bod5 biological oxygen demand what does the ratio of bod cod or cod bod means?
BOD is inversely proportional to COD
What is the different between biochemical oxygen demand and biological oxygen demand?
Oxygen Demand -The amount of oxygen require to oxidize an organic materialBiochemical (Biological) Oxygen Demand (BOD) -The amount of oxygen required to oxidized any organic matter present in the water by microbes present in the water. Usually representin the easily "digestible" organics.Chemical Oxygen Demand (CO) - The amount of oxidants experessed as oxygen required to consume all organics in a water sampleTotal Oxygen Demand (TOD) the sum of COD and BODBiological Oxygen demand is the oxygen required to oxidized only organic matter by micro organisms (it is basically a prototype of actual process happening in treatment plant) while chemical oxygen demand is the oxygen consumed to oxidize all organic and inorganic matter and it employ chemicals to do this process that why it is way more fast then BOD experiment .
How does seasonal turnover in lakes affect oxygen level available to the aquatic organisms?
It affects the oxygen level because it is essential for the survival and growth of organisms ata ll levels within its ecosystem.
What are the Physical and biological factors affecting the solubility of dissolved gases in aquatic ecosystems?
Physical factors are temperature of the water (higher temperature, less oxygen dissolved), salinity and altitude/pressure. I'm still looking for the biological factors.
Water has sufficient dissolved oxygen to sustain aquatic life?
Water does have sufficient dissolved oxygen to sustain aquatic life. This is true because aquatic life has adapted to the limited oxygen using gills.
Does light affect the amount of living things in a water environment?
Yes, it does. When the plants get light, they photosynthesis and give out oxygen to the aquatic animals.The animals then give out carbon dioxide to the plants for them to photosynthesis. But if, there is no sunlight, the plants cannot photosynthesis to make food and give out oxygen to the aquatic animals.Both the aquatic plants and animals eventually die. Therefore, the light affects the amount of living things in a water environment.
