TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

The mass concentration of dissolved oxygen consumed under specified conditions by the biological oxidation of organic and/or inorganic matter in water.  4, record 1, English, - biochemical%20oxygen%20demand

Record number: 1, Textual support number: 1 OBS

biochemical oxygen demand; biological oxygen demand; BOD; B.O.D.: [These terms and abbreviations can also refer] to a chemical procedure for determining this amount. This is not a precise quantitative test, although it is widely used as an indication of the organic quality of water. The BOD value is most commonly expressed in milligrams of oxygen consumed per litre of sample during 5 days of incubation at 20 °C and is often used as a robust surrogate of the degree of organic pollution of water. ... BOD can be used as a gauge of the effectiveness of wastewater treatment plants. ... BOD is similar in function to chemical oxygen demand (COD), in that both measure the amount of organic compounds in water. However, COD is less specific, since it measures everything that can be chemically oxidized, rather than just levels of biologically active organic matter.  2, record 1, English, - biochemical%20oxygen%20demand

Record number: 1, Textual support number: 2 OBS

A 5-day BOD is written BOD₅. (The subscripted number represents the number of days over which measurements are taken.)  5, record 1, English, - biochemical%20oxygen%20demand

Record number: 1, Textual support number: 3 OBS

biochemical oxygen demand; BOD: term, abbreviation and definition standardized by the International Organization for Standardization (ISO).  6, record 1, English, - biochemical%20oxygen%20demand

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Concentration en masse de l'oxygène dissous consommé dans des conditions définies par l'oxydation biologique des matières organiques et/ou inorganiques contenues dans l'eau.  7, record 1, French, - demande%20biochimique%20en%20oxyg%C3%A8ne

Record number: 1, Textual support number: 1 OBS

La quantité d'oxygène nécessaire pour oxyder les matières organiques (biodégradables) par voie biologique (oxydation des matières organiques biodégradables par des bactéries) [...] permet d'évaluer la fraction biodégradable de la charge polluante carbonée des eaux usées. Elle est en général calculée au bout de 5 jours à 20 °C et dans le noir. On parle alors de "DBO5".  3, record 1, French, - demande%20biochimique%20en%20oxyg%C3%A8ne

Record number: 1, Textual support number: 2 OBS

DBO5 : La demande biochimique en oxygène après (ou à) 5 jours. Le chiffre s'écrit habituellement en indice (DBO₅).  8, record 1, French, - demande%20biochimique%20en%20oxyg%C3%A8ne

Record number: 1, Textual support number: 3 OBS

demande biochimique en oxygène; demande biologique en oxygène; demande biochimique d'oxygène; DBO; D.B.O. : Ces termes et abréviations peuvent également désigner la procédure servant à calculer la quantité d'oxygène en question.  8, record 1, French, - demande%20biochimique%20en%20oxyg%C3%A8ne

Record number: 1, Textual support number: 4 OBS

La DBO sert d'indice de pollution de l'eau.  8, record 1, French, - demande%20biochimique%20en%20oxyg%C3%A8ne

Record number: 1, Textual support number: 5 OBS

demande biochimique en oxygène; DBO : terme, abréviation et définition normalisés par l'Organisation internationale de normalisation (ISO).  9, record 1, French, - demande%20biochimique%20en%20oxyg%C3%A8ne

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 DEF

Concentración en masa del oxígeno disuelto, consumido bajo condiciones específicas, por la oxidación biológica de la materia orgánica e/o inorgánica contenida en el agua.  4, record 1, Spanish, - demanda%20bioqu%C3%ADmica%20de%20ox%C3%ADgeno

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

A binary compound of hydrogen and oxygen, empirical formula H₂O₂, used mostly in dilute aqueous solutions as an oxidizing agent [and of which the] most remarkable feature is its tendency to decompose readily into water and oxygen, the first instance of contact analysis.  6, record 2, English, - hydrogen%20peroxide

Record number: 2, Textual support number: 1 OBS

Use : Bleaching and deodorizing of textiles, wood pulp, hair, fur, etc. ;source of organic and inorganic peroxides; pulp and paper industry; plasticizers; rocket fuel; foam rubber; manufacture of glycerol; antichlor; dyeing; electroplating; antiseptic; laboratory reagent; epoxidation, hydroxylation, oxidation, and reduction; viscosity control for starch and cellulose derivatives; refining and cleaning metals; bleaching and oxidizing agent in foods; neutralizing agent in wine distillation; seed disinfectant; substitute for chlorine in water and sewage treatment.  7, record 2, English, - hydrogen%20peroxide

Record number: 2, Textual support number: 2 OBS

Also known under a large number of commercial designations, such as: Albone; Hioxyl; Inhibine; Interox; Kastone; Oxydol; Perhydrol (hydroxide peroxide 30%, q.v.); Perone; Peroxan; Superoxol.  8, record 2, English, - hydrogen%20peroxide

Record number: 2, Textual support number: 3 OBS

hydrogen peroxide: Refers to the anhydrous form (i.e. "anhydrous hydrogen peroxide"), but the term is also commonly used for hydrogen peroxide solutions (marketed as solutions in water concentrations of 3 to 90% by weight). See also "hydrogen peroxide solution."  9, record 2, English, - hydrogen%20peroxide

Record number: 2, Textual support number: 4 OBS

hydrogen peroxide: form recommended by the IUPAC (International Union of Pure and Applied Chemistry).  2, record 2, English, - hydrogen%20peroxide

Record number: 2, Textual support number: 5 OBS

peroxide: This term is used in common usage as an abbreviation for "hydrogen peroxide" but must not be considered as a true synonym of this latter term in a systematic sense; it does not correspond to the CAS number for "hydrogen peroxide."  2, record 2, English, - hydrogen%20peroxide

Record number: 2, Textual support number: 6 OBS

Molecular formula: H₂O₂; Structural formula: H—O—O—H  7, record 2, English, - hydrogen%20peroxide

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

[...] espèce chimique [de] formule H₂O₂ [qui] se présente sous la forme d'un liquide bleu pâle sirupeux, qui se solidifie à -0,46 °C et qui est nettement plus dense que l'eau [...]  6, record 2, French, - peroxyde%20d%27hydrog%C3%A8ne

Record number: 2, Textual support number: 1 CONT

On distingue notamment : a) l'eau oxygénée concentrée, solution aqueuse acide contenant 30 % en poids de peroxyde d'hydrogène, utilisée avec précautions contre certaines lésions de la peau; b) l'eau oxygénée officinale, contenant environ 3 % en poids (8 à 12 % en volume) de peroxyde d'hydrogène, utilisée comme hémostatique et comme désinfectant. L'eau oxygénée concentrée à 20 volumes est utilisée pour la décoloration des cheveux.  7, record 2, French, - peroxyde%20d%27hydrog%C3%A8ne

Record number: 2, Textual support number: 2 CONT

On ne peut faire bouillir l'eau oxygénée pure sous la pression atmosphérique normale, car le liquide se décompose auparavant; il est en effet thermodynamiquement instable à la température ordinaire [...]  6, record 2, French, - peroxyde%20d%27hydrog%C3%A8ne

Record number: 2, Textual support number: 1 OBS

On appelle ordinairement eau oxygénée les mélanges d'eau et de peroxyde d'hydrogène.  6, record 2, French, - peroxyde%20d%27hydrog%C3%A8ne

Record number: 2, Textual support number: 2 OBS

peroxyde d'hydrogène : forme recommandée par l'UICPA (Union internationale de chimie pure et appliquée).  2, record 2, French, - peroxyde%20d%27hydrog%C3%A8ne

Record number: 2, Textual support number: 3 OBS

peroxyde : Ce terme est utilisé dans la vie courante comme abréviation de «peroxyde d'hydrogène», mais n'est pas un synonyme de ce dernier terme au sens strict; ce nom ne correspond pas au numéro CAS (du Chemical Abstracts Service) pour le peroxyde d'hydrogène. La prudence s'impose donc dans son emploi. Voir aussi l'autre fiche pour «peroxyde».  2, record 2, French, - peroxyde%20d%27hydrog%C3%A8ne

Record number: 2, Textual support number: 4 OBS

À une concentration de 30 % il est commercialisé sous le nom de «Perhydrol» (voir aussi cette fiche).  8, record 2, French, - peroxyde%20d%27hydrog%C3%A8ne

Record number: 2, Textual support number: 5 OBS

Formule chimique : H₂O₂  8, record 2, French, - peroxyde%20d%27hydrog%C3%A8ne

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 OBS

Líquido incoloro, insoluble en alcohol y agua. Las soluciones concentradas son tóxicas e irritantes. Riesgo de explosión. Agente oxidante.  3, record 2, Spanish, - per%C3%B3xido%20de%20hidr%C3%B3geno

Record number: 2, Textual support number: 2 OBS

Fórmula química: H₂O₂  4, record 2, Spanish, - per%C3%B3xido%20de%20hidr%C3%B3geno

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

A metal with marked resistance to chemical reaction, particularly to oxidation and to solution by inorganic acids.  2, record 3, English, - noble%20metal

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Métal qui possède une très bonne résistance au titre des réactions chimiques, en particulier vis-à-vis de l'oxydation et de l'attaque par des solutions à base d'acides minéraux.  3, record 3, French, - m%C3%A9tal%20noble

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

The Oxidation States in Organic and Inorganic Sulfur Compounds by Soft X-ray Absorption Spectroscopy.... X-ray absorption spectroscopy provides a means to perform non-destructive and direct determination of the sulfur oxidation states in organic and inorganic compounds.  5, record 4, English, - inorganic%20sulfur%20compound

Record number: 4, Textual support number: 2 CONT

In most instances, the iron is bound to sulfur(s) from cysteine residues in polypeptide backbone and also to inorganic sulfurs in the iron-sulfur cluster. The chief role of the iron-sulfur cluster is to facilitate electron transfer, while in others, the clusters contribute to catalytic function.  6, record 4, English, - inorganic%20sulfur%20compound

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

Emploi de composés inorganiques du soufre pour les bras de la jonction de composants thermoélectriques.  3, record 4, French, - compos%C3%A9%20inorganique%20du%20soufre

Record number: 4, Textual support number: 2 CONT

Chez les ruminants, des apports de soufre inorganique peuvent être bénéfiques dans des conditions particulières de rationnement.  4, record 4, French, - compos%C3%A9%20inorganique%20du%20soufre

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

Wet air oxidation is the process of breaking down oxidizable inorganic and organic waste in a high-temperature, high-pressure, aqueous environment. The process is categorized as a low-temperature thermal treatment.  2, record 5, English, - wet%20air%20oxidation

Record number: 5, Textual support number: 2 CONT

In the wet air oxidation or wet combustion of sludges, air pressures are raised to 1200 to 1800 psig [pounds per square inch gage-82 to 124 bars] and the accompanying temperature becomes 540°F or more. Under these conditions there is no vaporization of the sludge liquid. ... External heat is applied to start oxidation of the organic matter in the sludge. Thereafter, oxidation increases until the rate reaches an equilibrium value.  3, record 5, English, - wet%20air%20oxidation

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 CONT

Combustion humide des boues. Ce procédé, malgré son appellation, est plus un procédé de conditionnement qu'un procédé d'incinération. Il consiste en effet, théoriquement, à chauffer la boue en présence d'air sous des pressions pouvant atteindre 200 bars [grammes par centimètre carré - 2898 psi). On réalise une oxydation poussée de la matière organique, simultanément à la transformation physique de la matière colloïdale.  1, record 5, French, - combustion%20humide

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

Oxidation of inorganics is applicable to a limited number of compounds.  1, record 6, English, - oxidation%20of%20inorganics

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 CONT

L'oxydation des substances inorganiques est applicable à un nombre limité de composés; [...]  1, record 6, French, - oxydation%20de%20substance%20inorganique

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

Bacteria that synthesize organic compounds by using energy derived from the oxidation of organic and inorganic materials without the aid of light.  2, record 7, English, - chemosynthetic%20bacteria

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

Bactéries qui réalisent la synthèse des composés organiques grâce à l'énergie fournie par des réactions chimiques.  1, record 7, French, - bact%C3%A9ries%20chimiotrophes

Record 7,  Textual support,  Spanish