biochemical oxygen demand


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biochemical oxygen demand

n.
The amount of oxygen required by aerobic microorganisms to decompose the organic matter in a sample of water, such as that polluted by sewage. It is used as a measure of the degree of water pollution. Also called biological oxygen demand.

biochemical oxygen demand

n
(Environmental Science) a measure of the organic pollution of water: the amount of oxygen, in mg per litre of water, absorbed by a sample kept at 20°C for five days. Abbreviation: BOD

bi′ochem′ical ox′ygen demand`


n.
the oxygen required by aerobic organisms, as those in sewage, for metabolism. Also called biological oxygen demand.
[1925–30]
References in periodicals archive ?
This point also had high levels of chemical and biochemical oxygen demand.
Biochemical oxygen demand testing is to determine the quantity of oxygen used by microorganisms in the oxidation of organic matter.
Biochemical oxygen demand (BOD) test is a widely used parameter for evaluating the ability of naturally occurring microorganisms to digest organic matter [18], in 3-7 days incubation at 37[degrees] C by analyzing the depletion of oxygen inside the POME.
is a unit of measure of the average organic biodegradable load, this being a five day biochemical oxygen demand (BOD5) of 60 gr of oxygen per day
The Municipality has to remove at least 30 percent of the biochemical oxygen demand of the sewage and 30 percent of the solids.
Wastewater from meat and other food processing operations is high in biochemical oxygen demand, which reduces the amount of dissolved oxygen available for fish and other aquatic life.
Using Baswood's patented technologies, the BioViper[TM] delivers an energy-efficient pretreatment solution that significantly lowers the biochemical oxygen demand (BOD) in the bottling plant's facility's effluent while supporting DPS's environmental sustainability goals.
The finished MBBR systems will reduce biochemical oxygen demand (BOD) and nitrification.
The parameters for the water quality were pH, five-day biochemical oxygen demand (BOD5), chemical oxygen demand (COD), total suspended solids (TSS), total nitrogen (TN) and total phosphorus (TP).
Dissolved oxygen (bottom) and biochemical oxygen demand (BOD) were measured using a model 52 oxygen meter from YSI (integrated sample).
November, December, January and February 2009-2010 from the ten samples were collected from different textile mills and analyzed for various parameters such as Total Dissolved Solids (TDS), Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD), pH, Electrical Conductivity(EC), and heavy metals like Cadmium(Cd), Chromium(Cr), Copper(Cu), Iron(Fe), Manganese(Mn), Nickel(Ni), Potassium(K), Phosphorous(P), Sodium(Na), Sulphur(S), Zinc(Zn) were found to be present within the permissible limits.

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