biochemical oxygen demand


Also found in: Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia.
Related to biochemical oxygen demand: biochemical oxygen demand test

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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Mentioned in ?
References in periodicals archive ?
Biochemical oxygen demand (BOD) and chemical oxygen demand (COD) are two different ways to measure how much oxygen the water will consume when it enters the wastewater.
Oroklini waters 'a breeding ground for bacteria', say Greens
The amount of oxygen consumed by these microorganisms in decomposing organic matter in a body of wastewater is referred to as biochemical oxygen demand (BOD) (Hogan, 2010; Tchnobanoglous and Burton, 2001).
Prediction of five-day biochemical oxygen demand ([BOD.sub.5]) from chemical oxygen demand (COD) values in raw and biologically treated domestic sewage
Average pH -- 8.6 9.2 8.8 Turbidity NTU 1790 2588 2133 Chemical Oxygen Demand mg/l 892 1226 1023 Biochemical Oxygen Demand mg/l 378 534 449 Total Suspended mg/l 956 1412 1200 Solids (105[degrees]C) Oil & Grease mg/l 50 85 68 Lead mg/l 215 313 257 Parameters Polishing Min.
Zero-discharge technology in the crystal glass industry
Initial factors contributing to rapid bacterial growth are temperature, retention time, and high biochemical oxygen demand (BOD) levels.
Manhole rehabilitation is corrosion really caused by [H.sub.2]S?
Reem Abubaker, business development officer, International Gulf Trading Co (IGTC) explains where greywater comes from and what is determined by the 'grey' in greywater: "Greywater is made up of all water from household use, excluding kitchen waste, as this contains biochemical oxygen demand (BOD) matter, fat and grease.
Many Shades of Grey
This can be used as a preliminary biological treatment process or as a global treatment line specifically for removing carbonated contaminates from industrial effluent by treating BOD (Biochemical Oxygen Demand) and COD (Chemical Oxygen Demand).
Ensuring water flows sustainably
The unit has been 88 percent more energy efficient than military guidelines when tested with municipal wastewater, and it produces high effluent quality with both low biochemical oxygen demand and suspended solids.
System to Turn Wastewater into Fresh Water Developed
Moreover, the biochemical oxygen demand ( BOD) level has been in the range of 4 to 29 mg/ l at both the sites, which is very high.
Dissolved oxygen level touches zero in Yamuna
The Airport clarigester system, a historical source of problems, was still exceeding some monthly levels of biochemical oxygen demand, suspended solids, and phosphorus before it was permanently shut down on Jun.
Sewage treatment plants in compliance; airport system still not 100% operational
Domtar failed to adhere to the regulatory limits for biochemical oxygen demand (BOD) and thereby deposited effluent that was deleterious to fish, contrary to the Fisheries Act.
Domtar dinged for environmental violations
Analytical parameters of POME were analyses based on the methods developed and modified by the Department of Environment of Malaysia, DOE [13], such as COD (digestion method), BOD (biochemical oxygen demand), and the color (ADMI unit), which were determined according to the APHA method [14].
Enhancement of biodegradation of Palm Oil Mill Effluents by local isolated microorganisms

Dictionary browser ?
Full browser ?