ค้นเจอ 177 รายการ

Compression settling

แปลว่า(Environmental Engineering) Settling which occurs in the lower reaches of clarifiers where particle concentrations are highest. Particles can settle only by compressing the mass of particles below.

Thiols

แปลว่า(Environmental Engineering) Organic compounds which contain the "-SH" functional group. Also called mercaptans.

Alkalinity

แปลว่า(Environmental Engineering) The capacity of a water to neutralize acids.

Groundwater

แปลว่า(Environmental Engineering) Water which is contained in geologic strata. Also properly written as two words, ground water.

Effluent based standards

แปลว่า(Environmental Engineering) Standards which set concentration or mass per time limits on the effluent being discharged to a receiving water.

Weak acid

แปลว่า(Environmental Engineering) An acid that does not ionize completely under the conditions of interest. Examples include acetic acid, carbonic acid, and hypochlorous acid. See strong acid.

Epilimnion

แปลว่า(Environmental Engineering) The top layer of a lake.

Aerobes

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

Photoautotrophic

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

Troposphere

แปลว่า(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

แปลว่า(Environmental Engineering) A disease caused by pathogenic organisms.

Biosynthesis

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