pollutant gases

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• pollutant — noun ADJECTIVE ▪ air, atmospheric, environmental, water ▪ biological, chemical, hazardous, organic, toxic ▪ …   Collocations dictionary

• pollutant — [[t]pəlu͟ːtənt[/t]] pollutants N VAR Pollutants are substances that pollute the environment, especially gases from vehicles and poisonous chemicals produced as waste by industrial processes. A steady stream of California traffic clogs the air… …   English dictionary

• environmental works — ▪ civil engineering Introduction       infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …   Universalium

• Wet scrubber — is a form of pollution control technology. The term describes a variety of devices that use pollutants from a furnace flue gas or from other gas streams. In a wet scrubber, the polluted gas stream is brought into contact with the scrubbing liquid …   Wikipedia

• Cyclonic spray scrubber — Figure 1 Irrigated cyclone scrubber Cyclonic spray scrubbers are an air pollution control technology. They use the features of both the dry cyclone and the spray chamber to remove pollutants from gas streams. Generally, the inlet gas enters the… …   Wikipedia

• Venturi scrubber — A venturi scrubber is designed to effectively use the energy from the inlet gas stream to atomize the liquid being used to scrub the gas stream. This type of technology is a part of the group of air pollution controls collectively referred to as… …   Wikipedia

• Peppered moth evolution — This article is about the peppered moth s significance in evolutionary biology. For its evolutionary ancestry, see Insect evolution. Biston betularia f. typica, the white bodied peppered moth …   Wikipedia

• Factory farming — A commercial chicken house raising broiler pullets for meat …   Wikipedia

• Trilemma — A trilemma is a difficult choice from three options, each of which is (or appears) unacceptable or unfavourable.There are two logically equivalent ways in which to express a trilemma: it can be expressed as a choice among three unfavourable… …   Wikipedia

• Motor vehicle emissions — Steam from tailpipe of cold car Typical appearance of car exhaust on a correctly …   Wikipedia

• catalytic converter — noun a device in the exhaust system of a motor vehicle, containing a catalyst for converting pollutant gases into less harmful ones …   English new terms dictionary