Course Glossary
This shows the specialized terms used in EarthWise Academy. This section contains all the definitions used in the various course glossaries used by each course.
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Digester CapacityThe total volume in gallons that a digester(s) can hold, or the volume used during the monitoring period, if not operating at full capacity.
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Diatomaceous EarthA fine material made up mostly of the skeletal remains of single cell, microscopic algae with a rigid, box-like internal structure consisting mainly of silica.
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Detention TimeThe theoretical time that a parcel of water or other liquid spends in a particular treatment unit or reservoir.
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Detection LimitThe amount of a substance with that EPA has determined to be the minimum concentration that can be measured and reported with 99% confidence that the true value is greater than zero.
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Detected ContaminantAny contaminant detected at or above its detection limit.
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DestabilizedA condition in which the electrical charge of particles has been neutralized.
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Department of Environmental ProtectionDepartment of Environmental Protection (DEP)
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Design Basis ThreatDesign Basis Threat (DBT) Description of a specific adversary and mode of attack that has a degree of likelihood of occurring.
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DEPDEP - Department of Environmental Protection
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Denitrifying bacteriaAlso known as denitrifiers. Specialized bacteria (such as Pseudomonas and Achromobacter) that convert nitrate in wastewater, into nitrogen gas.
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