Glossary & Acronyms

Overview

aerobic: an environment in which oxygen is used as the terminal electron acceptor
agglomerate: to cluster together
anaerobic: an environment in which no oxygen, either as free O ₂ or in the form of nitrite or nitrate are available and the shift is toward less efficient electron acceptors like , Fe ³⁺, etc.
anode: the positively charged electrode of an electrolytic cell, or a negatively charged terminal
anoxic: an environment in which there is limited free oxygen (O ₂) present and the shift is toward nitrite and nitrate the terminal electron acceptors
anion: a negatively charged ion
bag house: a filtration system for air pollution control which utilizes fabric bags as the filter media
batch-type: occurring in discreet units from start to finish of process, as opposed to a continuous process
binary fission: division into two parts
blow-down: removal of a portion of the process stream to prevent the concentration of a contaminant from exceeding a setpoint. For example, in a cooling tower contaminants are concentrated due to evaporation of the water being cooled. Blow-down occurs when the a variable (typically conductivity) exceeds a setpoint. A sidestream is removed and replaced with fresh make up water to control the desired concentration.
cathode: the negatively charged electrode of an electrolytic cell, or a positively charge terminal
cation exchange capacity: the ability of a soil to exchange cations on the soil particle for...

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