Anoxic waters

The adjective anoxic (from Greek an- = " not ", oxys = " sour" ), also outdated anoxysch, basically designates an oxygen- free region, ie a region that contains no oxygen ( anoxia ). It is thus the opposite of oxic.

Ecology

The term " anoxic " is particularly used to characterize the environment of living things, such as water, aquatic sediments, soils and artificial plants. Oxygen is in an anoxic environment only in bound form, eg in water than carbon dioxide, nitrate, or sulfate. Anoxic systems have a low redox potential. In such a system only organisms may be active that are not dependent on oxygen ( anaerobes ). In such an environment are oxygenated compounds which may be used instead of oxygen as the electron acceptor for anaerobic respiration supply energy for metabolism. Examples include the sulfate respiration or nitrate respiration.

Wastewater Technology

Also in wastewater technology and technique, an oxygen- free environment is " anoxic " with described. In a sewage treatment plant there is the bacteria no dissolved oxygen is available, but only nitrate or nitrite for anaerobic respiration ( denitrification).

Medicine and Physiology

In medicine and animal physiology is referred to as anoxia in the presence of oxygen deficiency, which leads to an insufficient supply of organs.

Documents

• Limnology
• Wastewater treatment
• Ecological property