ค้นหา environ* ใน คำศัพท์ช่างภาษาอังกฤษ

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Aerobes

(Environmental Engineering) Organisms which require molecular oxygen as an electron acceptor for energy production. See anaerobes.

Photoautotrophic

(Environmental Engineering) Organisms which utilize inorganic carbon dioxide for protoplasm synthesis and light for an energy source. See autotrophic and chemoautotrophic.

Troposphere

(Environmental Engineering) The lower atmosphere, from the earth's surface to approximately 12 km. This portion of the earth's atmosphere contains about 95 percent of the atmospheric gases. The temperature gradually declines through this region.

Infectious disease

(Environmental Engineering) A disease caused by pathogenic organisms.

Biosynthesis

(Environmental Engineering) Catabolism, the production of new cellular materials from other organic or inorganic chemicals.

Electrostatic precipitator

(Environmental Engineering) A device which uses an electric field to trap particulate pollutants.

Compound

(Environmental Engineering) A substance composed of two or more elements.

Climatology

(Environmental Engineering) The study of the climate, how the earth's atmosphere performs over long periods of time.

HAPs

(Environmental Engineering) Hazardous air pollutants.

Equivalent

(Environmental Engineering) The mass of the compound which will produce one mole of available reacting substance. Thus, for an acid, this would be the mass of acid which will produce one mole of H+, for a base, one mole of OH-.

Trickling filter

(Environmental Engineering) An attached growth biological process in which the microbial film is attached to non-moving rock or plastic media.

Waste minimization

(Environmental Engineering) The elimination or reduction of a waste prior to its generation. This is accomplished by process changes rather than waste treatment methods.

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