Remediation Terms Glossary

Amphoteric: having the characteristic of a base or acid and able to act as a base or acid

Anoxic: with out oxygen

Psichrophiles: organisms that are capable of growing and reproducing in extreme conditions

Mesophilic: organisms that grow best in moderate conditions, ex; not too hot not too cold

Redox Potential: measure of tendency of a chemical species to aquire electrons and therefore be reduced

Bioprecipitation:  the concept of rain-making bacteria

Anion: ion with more electrons than protons

Cation: ion with fewer electrons than protons

Ion: atom or molecule where number of electrons is not equal to the number of protons

Motility: capable of or exhibiting spontaneous motion

VOC: volitile organic compounds

COC: chemicals of concern

Dissimilatory Sulfate Reduction: sulfate reducing bacteria reduce sulfate in large amounts to obtain energy and expel the resulting sulfides as waste

TZD: Treatment Zone Demonstration

Recalcitrant:difficult to manage

Hydrocarbons:compound that consists of only hydrogen and carbon

Recalcitrant Hydrocarbons: difficult to manage hydrogen and carbon compound

Immunoassay Technique: A laboratory technique that makes use of the binding between an antigen and its homologous antibody in order to identify and quantify the specific antigen or antibody in a sample

An immunoassay is a biochemical test that measures the presence or concentration of a substance in solutions that frequently contain a complex mixture of substances

Metabolic:chemical reactions that sustains life

Cometabolic: Cometabolism involves the injection of a dilute solution of nutrients such as methane and oxygen into the contaminated groundwater or soil. -read more

Necromass: The mass of dead plant material lying as litter on the ground surface.

Aquatic Geomicrobiology: Microbes catalyze countless chemical reactions in nature which control the chemistry of the environment. Aquatic Geomicrobiology looks at these reactions and their effect on the aquatic environments from the perspective of the microbes involved

Incubation Method:growth and development of species in a controlled environment

Autotrophic: An organism capable of synthesizing its own food from inorganic substances, using light or chemical energy. Green plants, algae, and certain bacteria are autotrophs

halogenated organic compound A compound containing molecules of chlorine, bromine, iodine, and/or fluorine. Many herbicides, pesticides, and degreasing agents are made from halogenated organic compounds

hazardous waste Defined by federal and state law as exhibiting either of the following characteristics: ignitability, corrosivity, reactivity, or toxicity

heavy metal A reference to a group of metals including arsenic, chromium, copper, lead, mercury, silver, and zinc

Henry’s Law Henry’s Law is a measure of the extent that a chemical separates between water and air. The higher the Henry’s Law constant, the more likely substances will volatize rather than remaining in water.

herbicide A chemical pesticide designed to control or destroy plants, weeds, or grasses.

heterogeneous Non-uniform in grain size, structure, or composition.

HMX His Majesty’s Explosive ((octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine).

hydraulic head Head is the energy of a body of water produced by elevation, at a given pressure and temperature. It is a measure of potential energy of a body of water.

hydrazine A toxic liquid used in rocket propellant, agricultural chemicals, antioxidants, and explosives.

hydrocarbon An organic compound containing only hydrogen and carbon, often occurring in petroleum, natural gas, and coal.

hydrogen sulfide A gas emitted during decomposition of organic compounds. It also is a byproduct of oil refining and burning.

hydrogeology The study of groundwater, including its origin, occurrence, movement, and quality.

hydrology The scientific study of the properties, distribution, and effects of water in the atmosphere, on the earth’s surface, and in soil and rocks.



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