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Oxygen needed to remove organics from water
Biochemical oxygen demand (also known as BOD or biological oxygen demand) is an analytical parameter representing the amount of dissolved oxygen (DO) consumed
Biochemical_oxygen_demand
Measure of the amount of oxygen that can be consumed by reactions in a solution
In environmental chemistry, the chemical oxygen demand (COD) is an indicative measure of the amount of oxygen that can be consumed by reactions in a measured
Chemical_oxygen_demand
Topics referred to by the same term
Oxygen demand is an environmental chemistry term that may refer to: Biochemical oxygen demand (BOD), the amount of oxygen needed by organisms to break
Oxygen_demand
Theoretical oxygen demand (ThOD) is the calculated amount of oxygen required to oxidize a compound to its final oxidation products. However, there are
Theoretical_oxygen_demand
Water quality modelling expression
describes how dissolved oxygen (DO) decreases in a river or stream along a certain distance by degradation of biochemical oxygen demand (BOD). The equation
Streeter–Phelps_equation
Ways to test the suitability of wastewater
characteristics include pH value, dissolved oxygen concentrations, biochemical oxygen demand (BOD) and chemical oxygen demand (COD), nitrogen, phosphorus, chlorine
Wastewater_quality_indicators
Zone in which oxygen saturation in seawater in the ocean is at its lowest
increasing their demand for oxygen. Different species have different basal metabolic rates and therefore different oxygen demands. Life stages of organisms
Oxygen_minimum_zone
Chemical element with atomic number 8 (O)
Oxygen is a chemical element; it has the symbol O and its atomic number is 8. It is a member of the chalcogen group in the periodic table. It is highly
Oxygen
Device for measuring oxygen concentration
of the air. Rich mixture causes an oxygen demand. This demand causes the voltage output to rise as oxygen ions are transported through the sensor layer
Oxygen_sensor
Equipment which allows the user to breathe at hypoxic altitudes
carry the stored oxygen, open-circuit demand or closed circuit may be used to maximise endurance of the set. Breathing pure oxygen results in an elevated
High-altitude breathing apparatus
High-altitude_breathing_apparatus
Circulation of blood in the blood vessels of the heart muscle (myocardium)
oxygen delivery caused by a decrease in blood flow in front of increased oxygen demand of the heart results in tissue ischemia, a condition of oxygen
Coronary_circulation
Measure of dissolved or carried oxygen
1007/BF01666294. ISSN 1573-5036. S2CID 30164910. "Dissolved Oxygen and Biochemical Oxygen Demand". Water: Monitoring & Assessment. Washington, DC: United
Oxygen_saturation
Interface between oxygen delivery system and human user
pressure of oxygen is roughly constant. Diluter-demand oxygen systems can be used up to 40,000 ft (12,000 m). In a pressure-demand system, oxygen in the mask
Oxygen_mask
Use of oxygen as a medical treatment
Oxygen therapy, also referred to as supplemental oxygen, is the use of oxygen as medical treatment. Supplemental oxygen can also refer to the use of oxygen
Oxygen_therapy
Combination technology for wastewater treatment
percent in membrane bioreactors (see table,). Chemical oxygen demand (COD) and biological oxygen demand (BOD5) removal is found to increase with mixed liquor
Membrane_bioreactor
Medical condition of lack of oxygen in the tissues
insufficient to carry the available oxygen, PaO2 will be normal, but tissues will be insufficiently perfused to meet the oxygen demand. A V/Q mismatch can also occur
Hypoxia_(medicine)
Restriction in blood supply to tissues
either by treating the cause of the inadequate delivery or reducing the oxygen demand of the system that needs it. For example, patients with myocardial ischemia
Ischemia
Wastewater that is produced by a community of people
methods are commonly used: mainly the Biochemical Oxygen Demand (BOD) and the Chemical Oxygen Demand (COD). Management of sewage includes collection and
Sewage
Device that removes nitrogen from air
An oxygen concentrator is a device that concentrates the oxygen from a gas supply (typically ambient air) by selectively removing nitrogen to supply an
Oxygen_concentrator
Site for the disposal of waste materials
undergoes a rapid decrease in volume. Meanwhile, the leachate's chemical oxygen demand rises with increasing concentrations of the more recalcitrant compounds
Landfill
Chest discomfort due to disorder of the heart muscles
myocardial oxygen demand, which also reduces myocardial oxygen demand. Nitroglycerin is a potent vasodilator that decreases myocardial oxygen demand by decreasing
Angina
Use of high-inhalation concentrations of oxygen as medical treatment
Demand Valve Oxygen Therapy (DVOT) is a way of delivering high flow oxygen therapy using a device that only delivers oxygen when the patient breathes
Demand_valve_oxygen_therapy
Process of removing contaminants from municipal wastewater
Secondary treatment can reduce organic matter (measured as biological oxygen demand) from sewage, using aerobic or anaerobic biological processes. A quaternary
Sewage_treatment
Flow of oxygen from air to mitochondria
the oxygen cascade describes the flow of oxygen from air to mitochondria, where it is consumed in aerobic respiration to release energy. Oxygen flows
Oxygen_cascade
Areas of seawater, freshwater, or groundwater that are depleted of dissolved oxygen
sediment grains) is oxygen-free. Anoxia is further influenced by biochemical oxygen demand (BOD), which represents the amount of oxygen utilised by marine
Anoxic_waters
Starch extracted from cassava roots
regulatory limits are the total suspended solids, biochemical oxygen demand, and chemical oxygen demand values. As a result, the main proposed treatment methods
Tapioca
Interruption of cardiac blood supply
duration of the blockage, the presence of collateral blood vessels, oxygen demand, and success of interventional procedures. Tissue death and myocardial
Myocardial_infarction
Medication class with multiple uses
secretion, which in turn reduces the heart oxygen demand by lowering the extracellular volume and increasing the oxygen-carrying capacity of the blood. Heart
Beta_blocker
7th Chief Minister of Delhi since 2025
the city—due to elevated concentrations of ammonia and biochemical oxygen demand (BOD), reflecting significant organic contamination. On 20 October 2025
Rekha_Gupta
Converting wastewater into an effluent for return to the water cycle
Secondary treatment can reduce organic matter (measured as biological oxygen demand) from sewage, using aerobic or anaerobic biological processes. A quaternary
Wastewater_treatment
Maximum rate of oxygen consumption as measured during incremental exercise
V̇O2 max (also maximal oxygen consumption, maximal oxygen uptake or maximal aerobic capacity) is the maximum rate of oxygen consumption attainable during
VO2_max
Artificial wetland to treat wastewater, greywater or stormwater runoff
solids or soluble organic matter (measured as biochemical oxygen demand and chemical oxygen demand). Similar to natural wetlands, constructed wetlands also
Constructed_wetland
Type of activated sludge process for the treatment of wastewater
batches. Oxygen is bubbled through the mixture of wastewater and activated sludge to reduce the organic matter (measured as biochemical oxygen demand (BOD)
Sequencing_batch_reactor
Solid material produced during wastewater treatment
simple terms, the more the biomass consumes the lower the biochemical oxygen demand (BOD) will be in the discharge. It is important that MLSS removes COD
Mixed_liquor_suspended_solids
Type of subsurface wastewater disposal facility
wastewater requiring disposal and catabolic for the long-term biochemical oxygen demand of that wastewater. The land area that is set aside for the septic drain
Septic_drain_field
Product of the composting process using various species of worms
vermidigestion) which is used to remove organic matter, pathogens, and oxygen demand from wastewater or directly from blackwater of flush toilets. Vermicomposting
Vermicompost
Scientific device
or an incubation bottle is a main apparatus used for the Biological Oxygen Demand (BOD) test. During the five-day BOD or BOD5 test process, the BOD bottle
BOD_bottle
Pollution control technique
of it to reduce operating costs, has a moderately high biochemical oxygen demand (BOD) and may require treatment before disposal. However, this "blowdown
Biofilter
Enlargement of the heart muscle
wall in hypertrophic cardiomyopathy requires a greater oxygen demand. This increased oxygen demand of the enlarged heart muscle, combined with fibrosis
Hypertrophic_cardiomyopathy
French-American science fiction thriller film
the woman that she is Léo's wife and demands to speak to him. The woman seems confused and hangs up. As the oxygen level continues to fall, Liz begins
Oxygen_(2021_film)
Equipment allowing or assisting the user to breathe in a hostile environment
system demand mask or oxygen hood in a hyperbaric chamber. Delivery may be by continuous flow, by bag reservoir mask, on demand, or on pulse demand. Patients
Breathing_apparatus
Medical condition
inadequate oxygen supply to the heart muscle. When oxygen supply to the heart is unable to keep up with oxygen demand from the muscle, the result is the characteristic
Coronary_ischemia
Form of analytical chemistry
environment. It is used to test:[citation needed] Biochemical Oxygen Demand (BOD) Chemical Oxygen Demand (COD) eutrophication coating identification It can also
Wet_chemistry
rivers. Organic matter dissolved in fresh water, measured by biological oxygen demand (BOD), changes ecological characteristics. Wastewater may also be polluted
Environmental_impact_of_paper
Contamination of water bodies
used parameters that are quantified are pH, BOD, chemical oxygen demand (COD), dissolved oxygen (DO), total hardness, nutrients (nitrogen and phosphorus
Water_pollution
Reduction of blood flow to the heart
activities, during which the heart beats faster and has an increased oxygen demand. For some, this causes severe symptoms, while others experience no symptoms
Coronary_artery_disease
Device for reducing afterload within the heart
retrograde flow. These actions combine to decrease myocardial oxygen demand and increase myocardial oxygen supply. A computer-controlled mechanism inflates the
Intra-aortic_balloon_pump
Biological treatment process for wastewater or sewage
remove dissolved and suspended organic matter measured as biochemical oxygen demand (BOD). These processes are performed by microorganisms in a managed
Secondary_treatment
Aerobic treatment system, consisting of a biological reactor containing media
wastewater by removing pathogens and oxygen demand. The "trickling action" of the wastewater through the media dissolves oxygen into the wastewater, ensuring
Vermifilter
Higher than typical heart rate
stress, when the heart rate increases to meet the body's higher demand for energy and oxygen, but sinus tachycardia can also be caused by a health problem
Sinus_tachycardia
Medical intervention
oxygen demand and oxygen delivery. In a healthy person, the cardiovascular system always increases blood flow in response to increased oxygen demand.
Impedance_cardiography
Compost production method
is generated. This effluent has chemical oxygen demand (COD) of 1,50,000 PPM and biochemical oxygen demand (BOD) of 60,000 PPM and even more. This effluent
Windrow_composting
Metalloprotein that binds with oxygen
Hgb) is a protein containing iron that facilitates the transportation of oxygen in red blood cells. Almost all vertebrates contain hemoglobin, with the
Hemoglobin
Chest pain due to heart muscles that is easily provoked
reduce the circulating blood volume, therefore reducing the work and oxygen demand of the heart. In addition, nitroglycerin causes peripheral venous and
Unstable_angina
Abnormally low level of oxygen in the blood
perfusion of tissue to meet metabolic demands. Hypoxemia is usually defined in terms of reduced partial pressure of oxygen (mm Hg) in arterial blood, but also
Hypoxemia
Device used to provide oxygen therapy
A portable oxygen concentrator (POC) is a device used to provide oxygen therapy to people that require greater oxygen concentrations than the levels of
Portable_oxygen_concentrator
Stormwater treatment system
1±0.1 Phosphorus 0.54±0.46 0.14±0.14 Biological oxygen demand 12.12±9.67 5.39±7.15 Chemical oxygen demand 131.95±137.07 29.82±40.31 Total suspended solids
Tree_box_filter
Scientific study
measures of water quality include dissolved oxygen (DO), chemical oxygen demand (COD), biochemical oxygen demand (BOD), total dissolved solids (TDS), pH,
Environmental_chemistry
Indian environmental protection NGO
Note: The higher the Biochemical Oxygen Demand, the higher the pollution (conversely there is more dissolved oxygen needed to make the water safe). SMF
Sankat_Mochan_Foundation
Concentration of organic carbon in a sample
alternative to the classical but more lengthy biological oxygen demand (BOD) and chemical oxygen demand (COD) tests traditionally reserved for assessing the
Total_organic_carbon
Garden with water as a main feature
arranging plants in an aquarium Rain garden Biochemical oxygen demand Chemical oxygen demand Wastewater quality indicators Biotope Aquaponics Category:
Water_garden
Part of Earth's aquatic ecosystems
indicators like biochemical (or biological) oxygen demand, sediment oxygen demand, and dissolved oxygen. Macroinvertebrate community structure is commonly
Freshwater_ecosystem
Class of medications used primarily to treat high blood pressure
in blood volume, which leads to lower blood pressure and decreased oxygen demand from the heart. ACE inhibitors inhibit the activity of angiotensin-converting
ACE_inhibitor
Catecholamine hormone and neurotransmitter
β-blockers exert their cardioprotective effects through decreasing oxygen demand in cardiac myocytes; this is accomplished via decreasing the force of
Norepinephrine
kinetics, mass loading of readily biodegradable chemical oxygen demand {rbCOD}, and the dissolved oxygen {DO} concentration. The oxidation of the ammonium to
Simultaneous nitrification–denitrification
Simultaneous_nitrification–denitrification
elements, including pH, conductivity, dissolved oxygen, turbidity, biochemical oxygen demand, chemical oxygen demand, nutrients and other chemical parameters
Geography_of_Moldova
Lake in India
dissolved oxygen, chloride, nitrite, nitrate, phosphate, sulphate, sodium, ammonium, potassium, total chlorophyll, biochemical oxygen demand and chemical
Pushkar_Lake
Dark-coloured sediments rich in organic matter
raised oxygen demand from upper level. A reduction in deep-water circulation will eventually lead to a serious decrease in deep-water oxygen concentrations
Sapropel
Processes for treating wastewater produced as an industrial by-product
chloroform, naphthalene, phenols, toluene and vinyl chloride. Biochemical oxygen demand (BOD), which is a gross measurement of a range of organic pollutants
Industrial wastewater treatment
Industrial_wastewater_treatment
Chemical process that transforms a latent image into a visible image
strips. Many photographic solutions have high chemical and biological oxygen demand (COD and BOD). These chemical wastes are often treated with ozone, peroxide
Photographic_processing
Fish farming method
calculation and consideration must be given to the oxygen demand of a given system, and that demand must be met with either oxygenation or aeration equipment
Recirculating aquaculture system
Recirculating_aquaculture_system
Assessment against standards for use
water source in question include temperature, pH, dissolved oxygen, conductivity, oxygen reduction potential (ORP), turbidity, and Secchi disk depth.
Water_quality
Gases produced by decomposing organic matter
portal Energy portal Anaerobic digestion – Oxygen-free break down of material Biochemical oxygen demand – Oxygen needed to remove organics from water Biodegradability –
Biogas
Heart rate exceeding normal resting rate
heart itself. The increased heart rate also leads to increased work and oxygen demand by the heart, which can lead to rate related ischemia. An electrocardiogram
Tachycardia
Medical procedure
prevent brain injury by several methods, including decreasing the brain's oxygen demand, reducing the production of neurotransmitters like glutamate, as well
Targeted temperature management
Targeted_temperature_management
Blood vessels narrowing due to arterial spasm
because this causes the demand of oxygen to decrease. In general organic nitrates decrease oxygen demand and increase oxygen supply. It is this favourable
Vasospasm
heavy metals, chromium, and high levels of Chemical Oxygen Demand (COD) and Biological Oxygen Demand (BOD). Historically, small manufacturers prioritized
Leather_industry_in_China
Species of cephalopod
metabolic demands greatly, requiring they increase their oxygen intake by roughly 2.4 times the amount required for a resting octopus. This increased demand is
Common_octopus
Chemical compound
against which the heart must pump). An improved ratio of myocardial oxygen demand to supply leads to the following therapeutic effects during episodes
Nitroglycerin
Partially enclosed coastal body of brackish water
are found within the sediment which has a very high oxygen demand. This reduces the levels of oxygen within the sediment often resulting in partially anoxic
Estuary
Wastewater treatment system using aeration
residence time or sludge age of 1 to 5 days. This means that the chemical oxygen demand (COD) removed is relatively little and the effluent is therefore unacceptable
Aerated_lagoon
Control of blood flow within tissues, organs, or organ systems
environment. This change occurs in order to match up the tissue's oxygen demand with the actual oxygen supply available in the blood as closely as possible. For
Local_blood_flow_regulation
Wastewater treatment technique
compounds that are not readily biodegradable, thereby reducing the chemical oxygen demand of the wastewater and removing toxins. The carbon also acts as a "buffer"
Powdered activated carbon treatment
Powdered_activated_carbon_treatment
Man-made chemical-free swimming pool
suggests natural pool aeration twice a day—one in the morning, where oxygen demand is greatest, and another in the evening. It had been observed that when
Natural_swimming_pool
Storage vessel for oxygen
diving mask, diving helmet, demand valve, oxygen rebreather, built in breathing system (BIBS), oxygen tent, and hyperbaric oxygen chamber. Contrary to popular
Oxygen_tank
Slowing or stopping of life without death
of torpor, defined as a gradual physiological inhibition to reduce oxygen demand and obtain energy conservation by hypometabolic behaviors altering biochemical
Suspended_animation
Medical procedure
the electrical activity of the brain, which reduces the metabolic and oxygen demand. Their action limits oxidative damage to lipid membranes and may scavenge
Induced_coma
Province in Lesser Sunda Islands, Indonesia
considers the level of total suspended solids, dissolved oxygen, and chemical oxygen demand in water. Erosion at Lebih Beach has seen seven metres (23
Bali
Liquid by-product of animal metabolism
Ammonium/ammonia-N 460 mg/L Nitrate and nitrite 0.06 mg/L Chemical oxygen demand 6,000 mg/L Total phosphorus 800–2,000 mg/L Potassium 2,740 mg/L Sulphate
Urine
Medical condition of insufficient blood flow
the next. At a cellular level, shock is the process of oxygen demand becoming greater than oxygen supply. One of the key dangers of shock is that it progresses
Shock_(circulatory)
Excess accumulation of fluid in the brain
been demonstrated to increase metabolism and oxygen demand in the brain. The increased metabolic demand results in an increase in cerebral blood flow
Cerebral_edema
Reduction of the oxygen content of the oceans
which naturally contains less oxygen. Warmer water also raises oxygen demand from living organisms; as a result, less oxygen is available for marine life
Ocean_deoxygenation
Byproduct or waste product of woodworking operations (sawing, sanding, milling, etc.)
material in leachate, but use up much of the available oxygen. This high biochemical oxygen demand can suffocate fish and other organisms. There is an equally
Sawdust
items monitored were temperature, salinity, biological oxygen demand (BOD), chemical oxygen demand (COD), total bacteria, and residual bacteria. The water
Venues of the 2004 Summer Olympics
Venues_of_the_2004_Summer_Olympics
Bio-electrochemical system
as a biosensor). Wastewater is commonly assessed for its biochemical oxygen demand (BOD) values.[clarification needed] BOD values are determined by incubating
Microbial_fuel_cell
Test to determine the concentration of dissolved oxygen in water
to as the biochemical oxygen demand (BOD). The Winkler test is often controversial as it is not 100% accurate, and the oxygen levels may vary from test
Winkler_titration
suspended solids by filtration process, reducing Chemical Oxygen Demand (COD)/Biochemical Oxygen Demand (BOD) by aerobic degradation. Green Bridges also help
Green bridge (filtration system)
Green_bridge_(filtration_system)
Chemical compound
treatment as they biodegrade relatively slowly and impose a high biological oxygen demand. Schumann, Klaus; Siekmann, Kurt (2000). "Soaps". Ullmann's Encyclopedia
Sodium_stearate
Topics referred to by the same term
avalanche current Bilirubin oxidase, an enzyme Biochemical oxygen demand or "biological oxygen demand", a measure of organic pollution in a wastewater sample
Bod
Wastewater treatment process using aeration and a biological floc
major nutrients DO (Dissolved oxygen), nitrogen, phosphate, BOD (Biochemical oxygen demand), and COD (Chemical oxygen demand). In the reactor/aerator and
Activated_sludge
OXYGEN DEMAND
OXYGEN DEMAND
Boy/Male
Muslim
Demand
Female
Greek
(Σαλώμη) Greek form of Hebrew Shelomiyth, SALŌMĒ means "peaceful." In the New Testament bible, this is the name of a woman who witnessed Christ's crucifixion. It is also said (by the historian Josephus) to have been the name of the daughter of Herodias (consort of Herod Antipas), who demanded the head of John the Baptist after dancing for Herod.
Girl/Female
Hindu, Indian
Oxygen; Breathe of Life
Boy/Male
Biblical
Who demands his death.
Male
Japanese
(大蛇) Japanese name OROCHI means "big snake." In mythology, this is the name of an eight-forked serpent who demanded virgin sacrifices. He was killed by the god-hero Susanoo.
Boy/Male
Gaelic, Hindu, Indian
Oxen; Bard
Surname or Lastname
English
English : occupational name for a mower or reaper of grass or hay, Old English mǣðere. Compare Mead, Mower. Hay was formerly of great importance, not only as feed for animals in winter but also for bedding.English : in southern Lancashire, where it has long been a common surname, it is probably a relatively late development of Madder (see Mader).English : The prominent Mather family of New England were established in America by Richard Mather (1596–1669) in 1635. He was a Puritan clergyman from a well-established family of Lowton, Lancashire, England. After he emigrated, he was in great demand as a preacher, finally settling in Dorchester, MA. His son Increase Mather (1639–1723) was a diplomat and president of Harvard. He married his step-sister Maria Cotton, herself the daughter of an eminent Puritan divine, John Cotton. Their son Cotton Mather (1663–1728) bore both family names. The latter was a minister who is remembered for his part in witchcraft trials, but he was also a man of science and a fellow of the Royal Society in London.
Boy/Male
Hindu, Indian, Marathi, Sanskrit
Lord of Oxen; Bull
Surname or Lastname
English and Jewish (Ashkenazic)
English and Jewish (Ashkenazic) : occupational name for someone in charge of oxen, from Middle English oxe ‘ox’ + man ‘man’, or German Ochs + Mann, or Yiddish oks + man.
Surname or Lastname
English
English : probably a variant of Exley or Oxley.Americanized spelling of German Echsle or Öchsle, from a diminutive of Middle High German ohse ‘ox’, applied as a nickname for someone dealing with oxen (especially a plowman), or a habitational name for someone who lived at a house distinguished by the sign of an ox.
Surname or Lastname
English (Yorkshire)
English (Yorkshire) : occupational name for a person responsible for looking after oxen and castrated horses, from Middle English geld ‘sterile’, ‘barren (animal)’ (Old Norse geldr) + herde ‘herdsman’, Old English hierde (see Heard).Dutch : habitational name from the Dutch province of Gelderland or from Geldern in northwestern Germany (see Geller 1).
Surname or Lastname
English (Lancashire and Yorkshire)
English (Lancashire and Yorkshire) : occupational name for a keeper of oxen, from an agent derivative of Middle English nowt ‘beast’, ‘ox’ (from Old Norse naut, a cognate of Old English nÄ“at; compare Neat).English (Lancashire and Yorkshire) : occupational name for a scribe or clerk, from Middle English notere (Old English nÅtere, from Latin notarius, an agent derivative of nota ‘mark’, ‘sign’).
Boy/Male
Arabic, Indian, Muslim, Tamil
Honourable Judge; One who Judges Fairly; Lord of Origen; Lord of Rain
Boy/Male
Tamil
One who rules the body origen
Male
Greek
Short form of Greek Origenes, probably ORIGEN means "mountain-born."
Boy/Male
Arabic, Muslim
Demand
Boy/Male
Hindu
One who rules the body origen
Boy/Male
Biblical
Asked, lent, a grave. Demanded, lent, ditch, death.
Surname or Lastname
English
English : occupational name for a driver of horses or oxen attached to a cart or plow, or of loose cattle, from a Middle English agent derivative of Old English drīfan ‘to drive’.
Surname or Lastname
Turkish
Turkish : occupational name from asker ‘soldier’, from Arabic ‛askarī. This name is also found in Iran and the Indian subcontinent.Arabic : variant of Asghar.Greek : shortened form of Askeris, from Turkish asker ‘soldier’, or from Askeridis or Askeropoulos, patronymics from this word. Compare Laskaris.Norwegian and Swedish : habitational name from any of several farmsteads named Asker, in particular those near Oslo, from an inflected form of ask ‘ash tree’.English (Norfolk) : topographic name for someone who lived by an ash tree, Middle English ask (from Old Norse asker) + the habitational suffix -er.English : from Middle English asker(e) ‘collector of tolls or revenues’ or (in a legal context) ‘plaintiff’ or ‘prosecutor’ (an agent derivative of Middle English aske(n) ‘to ask’, ‘to demand’).
OXYGEN DEMAND
OXYGEN DEMAND
OXYGEN DEMAND
OXYGEN DEMAND
OXYGEN DEMAND
OXYGEN DEMAND
OXYGEN DEMAND
n.
Chlorine used in bleaching.
n.
A mixture of honey, water, vinegar, and spice, boiled to a sirup.
a.
Without oxygen; characterized by the absence of oxygen; as, a nonoxygenous alkaloid.
v. t.
To combine with oxygen, or subject to the action of oxygen, or of an oxidizing agent.
a.
Combined with oxygen only in part.
a.
Oxygenic.
n.
A colorless, tasteless, odorless, gaseous element occurring in the free state in the atmosphere, of which it forms about 23 per cent by weight and about 21 per cent by volume, being slightly heavier than nitrogen. Symbol O. Atomic weight 15.96.
n.
A ternary compound of oxygen and sulphur.
n.
A triangle having three acute angles.
n.
The technical name of oxygen.
v. t.
To convert into ozone, as oxygen.
a.
Forming alkalies with oxygen, as some metals.
v. t.
To unite, or cause to combine, with oxygen; to treat with oxygen; to oxidize; as, oxygenated water (hydrogen dioxide).
a.
Pertaining to, containing, or resembling, oxygen; producing oxygen.
v. t.
To deprive of oxygen; to deoxidize.
a.
Capable of living without atmospheric oxygen; anaerobiotic.
v. t.
To combine with oxygen or with more oxygen; to add oxygen to; as, to oxidize nitrous acid so as to form nitric acid.
n.
The act or operation of depriving of oxygen.
n.
A plant belonging to one of the greater part of the vegetable kingdom, and which the plants are characterized by having c wood bark, and pith, the wood forming a layer between the other two, and increasing, if at all, by the animal addition of a new layer to the outside next to the bark. The leaves are commonly netted-veined, and the number of cotyledons is two, or, very rarely, several in a whorl. Cf. Endogen.