Anaerobic
Encyclopedia
Anaerobic is a word which literally means without oxygen, as opposed to aerobic.

In wastewater treatment the absence of oxygen is indicated as anoxic; and anaerobic is used to indicate the absence of a common electron acceptor such as nitrate
Nitrate
The nitrate ion is a polyatomic ion with the molecular formula NO and a molecular mass of 62.0049 g/mol. It is the conjugate base of nitric acid, consisting of one central nitrogen atom surrounded by three identically-bonded oxygen atoms in a trigonal planar arrangement. The nitrate ion carries a...

, sulfate
Sulfate
In inorganic chemistry, a sulfate is a salt of sulfuric acid.-Chemical properties:...

 or oxygen.

Anaerobic may refer to:
  • Anaerobic adhesive
    Adhesive
    An adhesive, or glue, is a mixture in a liquid or semi-liquid state that adheres or bonds items together. Adhesives may come from either natural or synthetic sources. The types of materials that can be bonded are vast but they are especially useful for bonding thin materials...

    , a bonding agent that does not cure in the presence of air
  • Anaerobic clarigester
    Anaerobic clarigester
    The anaerobic clarigester is a form of anaerobic digester. It is regarded as being the ancestor of the UASB anaerobic digester. A clarigester treats dilute biodegradable feedstocks and separates out solid and hydraulic retention times...

    , is a form of anaerobic digester
  • Anaerobic contact process
    Anaerobic contact process
    The anaerobic contact process is a type of anaerobic digester. Here a set of reactors are created in series, often with recycling. This recycled material is pumped up into the bottom of the first reactor, an upflow reactor. The upflow anaerobic process is a large reactor which allows the waste to...

    , is a type of anaerobic digester
  • Anaerobic digestion
    Anaerobic digestion
    Anaerobic digestion is a series of processes in which microorganisms break down biodegradable material in the absence of oxygen. It is used for industrial or domestic purposes to manage waste and/or to release energy....

    , (AD) is the naturally occurring process of anaerobic decomposition harnessed and contained to manage waste and/or release energy.
  • Anaerobic environment, an aquatic environment with little available oxygen - see Hypoxia (environmental)
    Hypoxia (environmental)
    Hypoxia, or oxygen depletion, is a phenomenon that occurs in aquatic environments as dissolved oxygen becomes reduced in concentration to a point where it becomes detrimental to aquatic organisms living in the system...

  • Anaerobic exercise
    Anaerobic exercise
    Anaerobic exercise is exercise intense enough to trigger anaerobic metabolism. It is used by athletes in non-endurance sports to promote strength, speed and power and by body builders to build muscle mass...

    , a form of exercise
  • Anaerobic filter
    Anaerobic filter
    In sewage treatment systems, an anaerobic filter is a form of anaerobic digester. The digestion tank contains a filter medium where anaerobic microbial populations — organisms that live in the absence of oxygen — can establish themselves. Such filters are commonly employed in the treatment of...

  • Anaerobic lagoon
    Anaerobic lagoon
    Anaerobic Lagoon or Manure Lagoon is a man made outdoor earthen basin filled with excrement. Lagoons are part of a system designed to manage and treat waste created by Concentrated Animal Feeding Operations . Anaerobic lagoons are created from a manure slurry which is washed out from underneath the...

    , used to dispose of animal waste, particularly that of cows and pigs
  • Anaerobic organism
    Anaerobic organism
    An anaerobic organism or anaerobe is any organism that does not require oxygen for growth. It could possibly react negatively and may even die if oxygen is present...

    , any organism that does not require oxygen for growth
  • Anaerobic respiration
    Anaerobic respiration
    Anaerobic respiration is a form of respiration using electron acceptors other than oxygen. Although oxygen is not used as the final electron acceptor, the process still uses a respiratory electron transport chain; it is respiration without oxygen...

    , oxidation of molecules in the absence of oxygen
  • Anaerobic ammonium oxidation, anammox
    Anammox
    Anammox, an abbreviation for ANaerobic AMMonium OXidation, is a globally important microbial process of the nitrogen cycle . The bacteria mediating this process were identified in 1991, and at the time were a great surprise for the scientific community...

    , the microbial process combining ammonium and nitrite.
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