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ZERO POLLUTION [3 records]

Record 1 2022-04-08

English

Subject field(s)
  • Titles of Federal Government Programs (Canadian)
  • Anti-pollution Measures
  • Waste Management
  • Plastic Materials
OBS

The Zero Plastic Waste Initiative aims to effect change across the plastics lifecycle to increase waste collection, improve value recovery, and prevent and remove plastic pollution. It supports projects that use innovative approaches leading to measurable, positive impacts to reduce plastic waste and pollution in Canada.

French

Domaine(s)
  • Titres de programmes fédéraux (Gouvernement canadien)
  • Mesures antipollution
  • Gestion des déchets
  • Matières plastiques
OBS

L'Initiative zéro déchet de plastique vise à apporter des changements dans le cycle de vie des matières plastiques afin d'en accroître la collecte, d'améliorer la récupération de leur valeur et d'en prévenir et éliminer la pollution. L'initiative appuie des projets qui utilisent une approche novatrice et écosystémique ayant un impact mesurable et positif pour réduire la quantité de déchets de plastique et la pollution au Canada.

Spanish

Save record 1

Record 2 2012-02-22

English

Subject field(s)
  • Atmospheric Physics
  • Air Pollution
DEF

Air (relatively) devoid of solid, liquid or gaseous pollutant materials.

CONT

The composition of air is variable with respect to several of its components(e. g., CH4, CO2, H2O) so "pure" air has no precise meaning; it is commonly considered to be air which is free of dust, [hydrometeors, ] aerosols, and reactive gaseous contaminants of anthropogenic origin [such as industrial effluents].... Relative clean air which is free of most reactive anthropogenic pollution(NO, NO2, SO2, non-methane hydrocarbons, etc.), often used as a reference sample in the calibration and operation of instruments, is purchased under the designation of zero air.

CONT

[The] so-called "pure" air is a mixture of gases containing about 78 percent nitrogen; 21 percent oxygen; less than 1 percent of carbon dioxide, argon, and other inert gases; and varying amounts of water vapor.

OBS

air: The mixture of gases comprising the earth’s atmosphere.

French

Domaine(s)
  • Physique de l'atmosphère
  • Pollution de l'air
DEF

Air (relativement) exempt de matières polluantes solides, liquides ou gazeuses.

CONT

L'air est un mélange de gaz constituant l'atmosphère qui entoure la terre. L'air pur est composé de 21 % d'oxygène et de 78 % d'azote par volume, en plus de quantités infimes d'autres gaz comme l'argon, le gaz carbonique et la vapeur d'eau.

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
  • Contaminación del aire
DEF

Aire (relativamente) exento de materiales contaminantes sólidos, líquidos o gaseosos.

Save record 2

Record 3 2002-11-05

English

Subject field(s)
  • Engines (Motor Vehicles)
  • Transportation of the Future
CONT

...it has long been known that to compress air to high pressures a staged process should be used, compressing air to first 50 bars, then to 150 bars then three hundred and so on. This technique, commonly employed by the air and gas liquefaction industries, uses a fraction of the energy used to compress the gas in one operation. The secret of the compressed air motor is simply to reverse the process - decompress the air in stages and in so doing efficiently release energy at each point in the chain.

OBS

It looks as if MDI's compressed-air engine will be one of the major discoveries of the new century. The inventor, Guy Nègre, has developed an engine capable of propelling a car up to 110 Km/h, that can cover a distance of 300 km with one tank refill and a cost of less than a cent per kilometre. Not only providing "Zero pollution" but also purifying the air.

Key term(s)
  • compressed air engine
  • compressed-air motor

French

Domaine(s)
  • Moteur (Véhicules automobiles)
  • Transports futuristes
CONT

Le moteur à air comprimé repose sur un système chambre/piston/embiellage à trois temps entièrement retravaillé. Durant la phase de compression, l'air ambiant est comprimé à 20 bars par le piston pour se transformer en air chaud à 400ºC. Puis grâce à un procédé breveté, le piston s'arrête pour accueillir dans sa chambre de l'air comprimé à température ambiante provenant des réservoirs. C'est la phase d'injection de l'air. Enfin, la phase d'expansion injecte une nouvelle fois de l'air pour augmenter la pression et repousser le piston vers le bas.

Spanish

Save record 3

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