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(Environmental Engineering) An organic compound which has two hydrocarbon groups bound by an interior oxygen atom. The general formula is R'-O-R".
(Environmental Engineering) A reactor in which the microorganisms are suspended in the wastewater. Examples of suspended growth reactors are activated sludge reactors and anaerobic digesters. See attached growth reactor.
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(Environmental Engineering) Any compound containing carbon except for the carbonates (carbon dioxide, the carbonates and bicarbonates), the cyanides, and cyanates.
ดินเหนียวที่มีอินทรียวัตถุสูง
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(Environmental Engineering) The amount of oxygen required to oxidize any organic matter in the water using harsh chemical conditions.
(Software Engineering) a series of activities that assist an organization in producing high quality software
(Environmental Engineering) The processes which sustain an organism, including energy production, synthesis of proteins for repair and replication.
(Environmental Engineering) Organisms which obtain energy from light using photooxidation.
(Environmental Engineering) A film of microorganisms attached to a surface, such as that on a trickling filter, rotating biological contactor, or rocks in natural streams.
(Environmental Engineering) In wastewater treatment, the conversion of the suspended, colloidal and dissolved organics remaining after primary treatment into a microbial mass with is then removed in a second sedimentation process. Secondary treatment included both the biological process and the associated sedimentation process.