Gaois

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5 results

  1. ENVIRONMENT · INDUSTRY|chemistry
    éileamh ceimiceach ar ocsaigin Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Definition tomhas ar an méid ocsaigne a chaitear ó oscaídeoir ceimiceach i ndálaí rialaithe Reference Fiontar, Ollscoil Chathair Bhaile Átha Cliath (DCU), bunaithe ar:'Plean Iniúchta Náisiúnta 2013', An Ghníomhaireacht um Chaomhnú Comhshaoil, https://www.epa.ie/pubs/reports/water/wastewater/National%20Inspection%20Plan_final_GAE.pdf [27.5.2016]
    chemischer Sauerstoffbedarf | CSB
    de
    Definition Sauerstoffmenge, welche zur Oxidation aller chemischen Verbindungen im Wasser nötig ist Reference http://www.envirohelp.eu.com/germany/glossary/index.html, 19.07.2006
    oxygen demand | COD | chemical oxygen demand
    en
    Definition amount of dissolved oxygen1 required to react with chemicals in water1dissolved oxygen [ IATE:1491194 ] Reference COM-Terminology Coordination, based on:Raelen Williard,Howard E. Haines, Jr. Montana Bioenergy Guidebook. Montana Department of Natural Resources and Conservation. December 1991, https://books.google.be/books?id=LMVL8GTjIyEC&pg=PR10&lpg=PR10&dq=amount+of+dissolved+oxygen+required+to+combine+with+chemicals+in+wastewater&source=bl&ots=4YtA5K13zg&sig=StIV44MYttlObwBlVqlhNdobgV4&hl=fr&sa=X&redir_esc=y#v=onepage&q=amount%20of%20dissolved%20oxygen%20required%20to%20combine%20with%20chemicals%20in%20wastewater&f=false [3.2.2016]
    Comment A measure of the oxygen equivalent of that portion of organic matter that is susceptible to oxidation by a strong chemical oxidizing agent.It is a measure of the oxidisability of a substance, expressed as the equivalent amount in oxygen of an oxidising reagent consumed by the substance under fixed laboratory conditions.See also: - biochemical oxygen demand [ IATE:1427092 ]- dichromate method [ IATE:753071 ]
    demande chimique en oxygène | DCO | COD
    fr
    Definition la consommation en oxygène par les oxydants chimiques forts pour oxyder les substances organiques et minérales de l'eau. Elle permet d'évaluer la charge polluante des eaux usées." Reference Wikipédia, l'encyclopédie libre, http://fr.wikipedia.org/wiki/Demande_chimique_en_oxyg%C3%A8ne [15.2.2007]
    Comment L'oxydant employé classiquement est le dichromate de potassium [ IATE:753071 ]. DCO mesure la totalité des substances oxydables, ce qui inclut celles qui sont biodégradables. La quantité de matières biodégradables par oxydation biochimique (oxydation par des bactéries aérobies qui tirent leur énergie de réactions d'oxydo-réduction) contenue dans l'eau à analyser est définie par le paramètre DBO [ IATE:1427092 ]
  2. ENVIRONMENT|environmental policy · INDUSTRY|chemistry · SCIENCE|natural and applied sciences
    biochemischer Sauerstoffbedarf | biologischer Sauerstoffbedarf | BSB
    de
    Definition die Menge elementaren Sauerstoffs, die beim Abbau der organischen Stoffe von Mikro-organismen verbraucht wird und somit das Mass fuer die Verschmutzung eines Abwassers, gemessen in mg 02/1 oder g 02/m3. Reference QDKS(0877)
    biological oxygen demand | BOD | BOD-5 | biochemical oxygen demand
    en
    Definition amount of oxygen taken up by microorganisms that decompose organic waste matter in water Reference "biochemical oxygen demand" > A Dictionary of Biology > Elizabeth Martin & Robert Hine > Oxford University Press, 2008 > Oxford Reference Online > DGT, http://www.oxfordreference.com/views/ENTRY.html?subview=Main&entry=t6.e485 (18.5.2009)
    Comment It is therefore used as a measure of the amount of certain types of organic pollutant in water. BOD is calculated by keeping a sample of water containing a known amount of oxygen for five days at 20°C. The oxygen content is measured again after this time. A high BOD indicates the presence of a large number of microorganisms, which suggests a high level of pollution.See also:- chemical oxygen demand [ IATE:1450129 ]
    DBO | demande biologique d'oxygène | demande biochimique en oxygène | demande biochimique d'oxygène | demande biologique en oxygène
    fr
    Definition quantité d'oxygène nécessaire à la décomposition biologique des matières organiques d'un échantillon, en un temps déterminé(5 jours à 20 degrés C par exemple: DBO5) Reference Vauge,Christian,Lexique des énergies renouvelables,1980,SCM,Neuilly-sur-Seine
  3. SOCIAL QUESTIONS|health|medical science
    rialtán ocsaigine ar éileamh Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    rialtán "ocsaigin ar éileamh" Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Bedarfsregler für lungenautomatische Atmung | Lungenautomat
    de
    demand oxygen regulator | oxygen pressure demand regulator
    en
    Definition a device which regulates the flow of gas from a high pressure source in response to a reduction in pressure at its outlet.In aircraft breathing systems,the gas is either oxygen or a mixture of air and oxygen and the flow from the regulator to the face mask is controlled by the pressure fluctuations in the mask produced by breathing.The flow of gas from a demand regulator matches the instantaneous inspiratory flow of the user Reference Multilingual Aeronautical Dictionary(AGARD,1980)
    régulateur d'oxygène à la demande
    fr
  4. INDUSTRY|chemistry · SCIENCE|natural and applied sciences|life sciences
    éileamh teoiriciúil ar ocsaigin Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    ThOD Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    ThSB | theoretischer Saürstoffbedarf
    de
    theoretical oxygen demand | ThOD
    en
    Definition the calculated amount of oxygen required to oxidize a compound to its final oxidation products Reference Wikipedia http://en.wikipedia.org/wiki/Theoretical_oxygen_demand [28.6.2010]
    Comment However, there are some differences between standard methods that can influence the results obtained: for example, some calculations assume that nitrogen released from organic compounds is generated as ammonia, whereas others allow for ammonia oxidation to nitrate. Therefore in expressing results, the calculation assumptions should always be stated
    demande théorique en oxygène | DThO
    fr
    Definition la quantité totale d'oxygène nécessaire pour parvenir à l'oxydation complète d'un produit chimique Reference Règlement (CE) n° 440/2008 de la Commission du 30 mai 2008 établissant des méthodes d'essai conformément au règlement (CE) n° 1907/2006 du Parlement européen et du Conseil concernant l'enregistrement, l'évaluation et l'autorisation des substances chimiques, ainsi que les restrictions applicables à ces substances (REACH) CELEX:32008R0440/FR
    Comment Elle est calculée à partir de la formule moléculaire (voir annexe II.2). La DThO est également exprimée en mg d'oxygène nécessaire par mg de produit à étudier